xml 约束写法 -springMvc 参考

一.servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd  
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd  
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd  
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

	<context:annotation-config />
	
	<import resource=""/>
	<context:component-scan base-package="com.**.controller"></context:component-scan>

	<mvc:annotation-driven  validator="validator" /><!-- 开启注解:[json注解],添加validator校验-->


	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/" />
		<property name="suffix" value=".jsp" />
	</bean>
	<!-- 文件上传 -->
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 设置上传文件的最大尺寸为5MB -->
		<property name="maxUploadSize" value="20480" />
	</bean>

	<!--拦截器 -->
	<mvc:interceptors>
		<!--多个拦截器,顺序执行 -->
		<mvc:interceptor>
			<mvc:mapping path="/user/**" />
			<bean class="interceptro.Interceptor1"></bean>
		</mvc:interceptor>

		<mvc:interceptor>
			<mvc:mapping path="/user/**" />
			<bean class="interceptro.Interceptor2"></bean>
		</mvc:interceptor>
	</mvc:interceptors>
	<!-- end 拦截器 -->
	<!-- 校验器,validator需要 annotation_driven 注册 -->
	<bean id="validator"
		class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
		<!-- hibernate校验器 -->
		<property name="providerClass" value="org.hibernate.validator.HibernateValidator" />
		<!-- 指定校验使用的资源文件,在文件中配置校验错误信息,如果不指定则默认使用classpath下的ValidationMessages.properties -->
		<property name="validationMessageSource" ref="messageSource" />
	</bean>
	<!-- 校验错误信息配置文件 -->
	<bean id="messageSource"
		class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
		<!-- 资源文件名 -->
		<property name="basenames">
			<list>
				<value>classpath:CustomValidationMessages</value>
			</list>
		</property>
		<!-- 资源文件编码格式 -->
		<property name="fileEncodings" value="utf-8" />
		<!-- 对资源文件内容缓存时间,单位秒 -->
		<property name="cacheSeconds" value="120" />
	</bean>
	<!-- 校验配置完毕 -->

</beans>

二.xmlns="http://www.springframework.org/schema/beans"

xmlns="http://www.springframework.org/schema/beans"

点进去是

点击3.2.xsd.显示如下:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<xsd:schema xmlns="http://www.springframework.org/schema/beans"
		xmlns:xsd="http://www.w3.org/2001/XMLSchema"
		targetNamespace="http://www.springframework.org/schema/beans">

	<xsd:import namespace="http://www.w3.org/XML/1998/namespace"/>

	<xsd:annotation>
		<xsd:documentation><![CDATA[
	Spring XML Beans Schema,version 3.2
	Authors: Juergen Hoeller,Rob Harrop,Mark Fisher,Chris Beams

	This defines a simple and consistent way of creating a namespace
	of JavaBeans objects,managed by a Spring BeanFactory,read by
	XmlBeanDefinitionReader (with DefaultBeanDefinitionDocumentReader).

	This document type is used by most Spring functionality,including
	web application contexts,which are based on bean factories.

	Each "bean" element in this document defines a JavaBean.
	Typically the bean class is specified,along with JavaBean properties
	and/or constructor arguments.

	A bean instance can be a "singleton" (shared instance) or a "prototype"
	(independent instance). Further scopes can be provided by extended
	bean factories,for example in a web environment.

	References among beans are supported,that is,setting a JavaBean property
	or a constructor argument to refer to another bean in the same factory
	(or an ancestor factory).

	As alternative to bean references,"inner bean definitions" can be used.
	Singleton flags of such inner bean definitions are effectively ignored:
	inner beans are typically anonymous prototypes.

	There is also support for lists,sets,maps,and java.util.Properties
	as bean property types or constructor argument types.
		]]></xsd:documentation>
	</xsd:annotation>

	<!-- base types -->
	<xsd:complexType name="identifiedType" abstract="true">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	The unique identifier for a bean. The scope of the identifier
	is the enclosing bean factory.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:attribute name="id" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The unique identifier for a bean. A bean id may not be used more than once
	within the same <beans> element.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
	</xsd:complexType>

	<!-- Top-level <beans> tag -->
	<xsd:element name="beans">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Container for <bean> and other elements,typically the root element in the document.
	Allows the definition of default values for all nested bean definitions. May itself
	be nested for the purpose of defining a subset of beans with certain default values or
	to be registered only when certain profile(s) are active. Any such nested <beans> element
	must be declared as the last element in the document.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element ref="description" minOccurs="0"/>
				<xsd:choice minOccurs="0" maxOccurs="unbounded">
					<xsd:element ref="import"/>
					<xsd:element ref="alias"/>
					<xsd:element ref="bean"/>
					<xsd:any namespace="##other" processContents="strict" minOccurs="0" maxOccurs="unbounded"/>
				</xsd:choice>
				<xsd:element ref="beans" minOccurs="0" maxOccurs="unbounded"/>
			</xsd:sequence>
			<xsd:attribute name="profile" use="optional" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The set of profiles for which this <beans> element should be parsed. Multiple profiles
	can be separated by spaces,commas,or semi-colons.

	If one or more of the specified profiles are active at time of parsing,the <beans>
	element will be parsed,and all of its <bean> elements registered,&lt;import&gt;
	elements followed,etc.  If none of the specified profiles are active at time of
	parsing,then the entire element and its contents will be ignored.

	If a profile is prefixed with the NOT operator '!',e.g.

		<beans profile="p1,!p2">

	indicates that the <beans> element should be parsed if profile "p1" is active or
	if profile "p2" is not active.

	Profiles are activated in one of two ways:
		Programmatic:
			ConfigurableEnvironment#setActiveProfiles(String...)
			ConfigurableEnvironment#setDefaultProfiles(String...)

		Properties (typically through -D system properties,environment variables,or
		servlet context init params):
			spring.profiles.active=p1,p2
			spring.profiles.default=p1,p2
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-lazy-init" default="default" type="defaultable-boolean">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'lazy-init' value; see the documentation for the
	'lazy-init' attribute of the 'bean' element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-merge" default="default" type="defaultable-boolean">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'merge' value; see the documentation for the
	'merge' attribute of the various collection elements. The default
	is 'false'.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-autowire" default="default">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'autowire' value; see the documentation for the
	'autowire' attribute of the 'bean' element. The default is 'default'.
					]]></xsd:documentation>
				</xsd:annotation>
				<xsd:simpleType>
					<xsd:restriction base="xsd:NMTOKEN">
						<xsd:enumeration value="default"/>
						<xsd:enumeration value="no"/>
						<xsd:enumeration value="byName"/>
						<xsd:enumeration value="byType"/>
						<xsd:enumeration value="constructor"/>
					</xsd:restriction>
				</xsd:simpleType>
			</xsd:attribute>
			<xsd:attribute name="default-autowire-candidates" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	A default bean name pattern for identifying autowire candidates:
	e.g. "*Service","data*","*Service*","data*Service".
	Also accepts a comma-separated list of patterns: e.g. "*Service,*Dao".
	See the documentation for the 'autowire-candidate' attribute of the
	'bean' element for the semantic details of autowire candidate beans.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-init-method" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'init-method' value; see the documentation for the
	'init-method' attribute of the 'bean' element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="default-destroy-method" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The default 'destroy-method' value; see the documentation for the
	'destroy-method' attribute of the 'bean' element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:anyAttribute namespace="##other" processContents="lax"/>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="description">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Contains informative text describing the purpose of the enclosing element.
	Used primarily for user documentation of XML bean definition documents.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType mixed="true">
			<xsd:choice minOccurs="0" maxOccurs="unbounded"/>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="import">
		<xsd:annotation>
			<xsd:documentation source="java:org.springframework.core.io.Resource"><![CDATA[
	Specifies an XML bean definition resource to import.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="resource" type="xsd:string" use="required">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The relative resource location of the XML (bean definition) file to import,for example "myImport.xml" or "includes/myImport.xml" or "../myImport.xml".
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="alias">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Defines an alias for a bean (which can reside in a different definition
	resource).
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="name" type="xsd:string" use="required">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the bean to define an alias for.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
					<xsd:attribute name="alias" type="xsd:string" use="required">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The alias name to define for the bean.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:group name="beanElements">
		<xsd:sequence>
			<xsd:element ref="description" minOccurs="0"/>
			<xsd:choice minOccurs="0" maxOccurs="unbounded">
				<xsd:element ref="meta"/>
				<xsd:element ref="constructor-arg"/>
				<xsd:element ref="property"/>
				<xsd:element ref="qualifier"/>
				<xsd:element ref="lookup-method"/>
				<xsd:element ref="replaced-method"/>
				<xsd:any namespace="##other" processContents="strict" minOccurs="0" maxOccurs="unbounded"/>
			</xsd:choice>
		</xsd:sequence>
	</xsd:group>

	<xsd:attributeGroup name="beanAttributes">
		<xsd:attribute name="name" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Can be used to create one or more aliases illegal in an (XML) id.
	Multiple aliases can be separated by any number of spaces,or semi-colons (or indeed any mixture of the three).
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="class" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation source="java:java.lang.Class"><![CDATA[
	The fully qualified name of the bean's class,except if it serves only
	as a parent definition for child bean definitions.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="parent" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The name of the parent bean definition.

	Will use the bean class of the parent if none is specified,but can
	also override it. In the latter case,the child bean class must be
	compatible with the parent,i.e. accept the parent's property values
	and constructor argument values,if any.

	A child bean definition will inherit constructor argument values,property values and method overrides from the parent,with the option
	to add new values. If init method,destroy method,factory bean and/or
	factory method are specified,they will override the corresponding
	parent settings.

	The remaining settings will always be taken from the child definition:
	depends on,autowire mode,scope,lazy init.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="scope" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The scope of this bean: typically "singleton" (one shared instance,which will be returned by all calls to getBean with the given id),or
	"prototype" (independent instance resulting from each call to getBean).

	By default,a bean will be a singleton,unless the bean has a parent
	bean definition in which case it will inherit the parent's scope.

	Singletons are most commonly used,and are ideal for multi-threaded
	service objects. Further scopes,such as "request" or "session",might
	be supported by extended bean factories (e.g. in a web environment).

	Inner bean definitions inherit the singleton status of their containing
	bean definition,unless explicitly specified: The inner bean will be a
	singleton if the containing bean is a singleton,and a prototype if
	the containing bean has any other scope.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="abstract" type="xsd:boolean">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Is this bean "abstract",not meant to be instantiated itself
	but rather just serving as parent for concrete child bean definitions?
	The default is "false". Specify "true" to tell the bean factory to not
	try to instantiate that particular bean in any case.

	Note: This attribute will not be inherited by child bean definitions.
	Hence,it needs to be specified per abstract bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="lazy-init" default="default" type="defaultable-boolean">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Indicates whether or not this bean is to be lazily initialized.
	If false,it will be instantiated on startup by bean factories
	that perform eager initialization of singletons. The default is
	"false".

	Note: This attribute will not be inherited by child bean definitions.
	Hence,it needs to be specified per concrete bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="autowire" default="default">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Controls whether bean properties are "autowired".
	This is an automagical process in which bean references don't need
	to be coded explicitly in the XML bean definition file,but rather the
	Spring container works out dependencies.

	There are 4 modes:

	1. "no"
	The traditional Spring default. No automagical wiring. Bean references
	must be defined in the XML file via the <ref/> element (or "ref"
	attribute). We recommend this in most cases as it makes documentation
	more explicit.

	Note that this default mode also allows for annotation-driven autowiring,if activated. "no" refers to externally driven autowiring only,not
	affecting any autowiring demands that the bean class itself expresses.

	2. "byName"
	Autowiring by property name. If a bean of class Cat exposes a "dog"
	property,Spring will try to set this to the value of the bean "dog"
	in the current container. If there is no matching bean by name,nothing
	special happens.

	3. "byType"
	Autowiring if there is exactly one bean of the property type in the
	container. If there is more than one,a fatal error is raised,and
	you cannot use byType autowiring for that bean. If there is none,nothing special happens.

	4. "constructor"
	Analogous to "byType" for constructor arguments. If there is not exactly
	one bean of the constructor argument type in the bean factory,a fatal
	error is raised.

	Note that explicit dependencies,i.e. "property" and "constructor-arg"
	elements,always override autowiring.

	Note: This attribute will not be inherited by child bean definitions.
	Hence,it needs to be specified per concrete bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
			<xsd:simpleType>
				<xsd:restriction base="xsd:NMTOKEN">
					<xsd:enumeration value="default"/>
					<xsd:enumeration value="no"/>
					<xsd:enumeration value="byName"/>
					<xsd:enumeration value="byType"/>
					<xsd:enumeration value="constructor"/>
				</xsd:restriction>
			</xsd:simpleType>
		</xsd:attribute>
		<xsd:attribute name="depends-on" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The names of the beans that this bean depends on being initialized.
	The bean factory will guarantee that these beans get initialized
	before this bean.

	Note that dependencies are normally expressed through bean properties
	or constructor arguments. This property should just be necessary for
	other kinds of dependencies like statics (*ugh*) or database preparation
	on startup.

	Note: This attribute will not be inherited by child bean definitions.
	Hence,it needs to be specified per concrete bean definition.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="autowire-candidate" default="default" type="defaultable-boolean">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Indicates whether or not this bean should be considered when looking
	for matching candidates to satisfy another bean's autowiring requirements.
	Note that this does not affect explicit references by name,which will get
	resolved even if the specified bean is not marked as an autowire candidate.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="primary" type="xsd:boolean">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Specifies that this bean should be given preference when multiple
	candidates are qualified to autowire a single-valued dependency.
	If exactly one 'primary' bean exists among the candidates,it
	will be the autowired value.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="init-method" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The name of the custom initialization method to invoke after setting
	bean properties. The method must have no arguments,but may throw any
	exception.

	This is an alternative to implementing Spring's InitializingBean
	interface or marking a method with the PostConstruct annotation.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="destroy-method" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The name of the custom destroy method to invoke on bean factory shutdown.
	The method must have no arguments,but may throw any exception.

	This is an alternative to implementing Spring's DisposableBean
	interface or the standard Java Closeable/AutoCloseable interface,or marking a method with the PreDestroy annotation.

	Note: Only invoked on beans whose lifecycle is under the full
	control of the factory - which is always the case for singletons,but not guaranteed for any other scope.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="factory-method" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The name of a factory method to use to create this object. Use
	constructor-arg elements to specify arguments to the factory method,if it takes arguments. Autowiring does not apply to factory methods.

	If the "class" attribute is present,the factory method will be a static
	method on the class specified by the "class" attribute on this bean
	definition. Often this will be the same class as that of the constructed
	object - for example,when the factory method is used as an alternative
	to a constructor. However,it may be on a different class. In that case,the created object will *not* be of the class specified in the "class"
	attribute. This is analogous to FactoryBean behavior.

	If the "factory-bean" attribute is present,the "class" attribute is not
	used,and the factory method will be an instance method on the object
	returned from a getBean call with the specified bean name. The factory
	bean may be defined as a singleton or a prototype.

	The factory method can have any number of arguments. Autowiring is not
	supported. Use indexed constructor-arg elements in conjunction with the
	factory-method attribute.

	Setter Injection can be used in conjunction with a factory method.
	Method Injection cannot,as the factory method returns an instance,which will be used when the container creates the bean.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="factory-bean" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Alternative to class attribute for factory-method usage.
	If this is specified,no class attribute should be used.
	This must be set to the name of a bean in the current or
	ancestor factories that contains the relevant factory method.
	This allows the factory itself to be configured using Dependency
	Injection,and an instance (rather than static) method to be used.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:anyAttribute namespace="##other" processContents="lax"/>
	</xsd:attributeGroup>

	<xsd:element name="meta" type="metaType">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Arbitrary metadata attached to a bean definition.
			]]></xsd:documentation>
		</xsd:annotation>
	</xsd:element>

	<xsd:complexType name="metaType">
		<xsd:attribute name="key" type="xsd:string" use="required">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The key name of the metadata attribute being defined.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="value" type="xsd:string" use="required">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The value of the metadata attribute being defined (as a simple String).
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
	</xsd:complexType>

	<xsd:element name="bean">
		<xsd:annotation>
			<xsd:documentation source="java:org.springframework.beans.factory.config.BeanDefinition"><![CDATA[
	Defines a single (usually named) bean.

	A bean definition may contain nested tags for constructor arguments,property values,lookup methods,and replaced methods. Mixing constructor
	injection and setter injection on the same bean is explicitly supported.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:extension base="identifiedType">
					<xsd:group ref="beanElements"/>
					<xsd:attributeGroup ref="beanAttributes"/>
				</xsd:extension>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="constructor-arg">
		<xsd:annotation>
			<xsd:documentation source="java:org.springframework.beans.factory.config.ConstructorArgumentValues">
				<![CDATA[
	Bean definitions can specify zero or more constructor arguments.
	This is an alternative to "autowire constructor".
	Arguments correspond to either a specific index of the constructor
	argument list or are supposed to be matched generically by type.

	Note: A single generic argument value will just be used once,rather
	than potentially matched multiple times (as of Spring 1.1).

	constructor-arg elements are also used in conjunction with the
	factory-method element to construct beans using static or instance
	factory methods.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element ref="description" minOccurs="0"/>
				<xsd:choice minOccurs="0" maxOccurs="1">
					<xsd:element ref="bean"/>
					<xsd:element ref="ref"/>
					<xsd:element ref="idref"/>
					<xsd:element ref="value"/>
					<xsd:element ref="null"/>
					<xsd:element ref="array"/>
					<xsd:element ref="list"/>
					<xsd:element ref="set"/>
					<xsd:element ref="map"/>
					<xsd:element ref="props"/>
					<xsd:any namespace="##other" processContents="strict"/>
				</xsd:choice>
			</xsd:sequence>
			<xsd:attribute name="index" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The exact index of the argument in the constructor argument list.
	Only needed to avoid ambiguities,e.g. in case of 2 arguments of
	the exact same type.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="type" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The exact type of the constructor argument. Only needed to avoid
	ambiguities,e.g. in case of 2 single argument constructors
	that can both be converted from a String.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="name" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The exact name of the argument in the constructor argument list.
	Only needed to avoid ambiguities,e.g. in case of 2 arguments of
	the exact same type. Note: This requires debug symbols to be
	stored in the class file in order to introspect argument names!
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="ref" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	A short-cut alternative to a nested "<ref bean='...'/>" element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="value" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	A short-cut alternative to a nested "<value>...<value/>" element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="property" type="propertyType">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Bean definitions can have zero or more properties.
	Property elements correspond to JavaBean setter methods exposed
	by the bean classes. Spring supports primitives,references to other
	beans in the same or related factories,lists,maps and properties.
			]]></xsd:documentation>
		</xsd:annotation>
	</xsd:element>

	<xsd:element name="qualifier">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Bean definitions can provide qualifiers to match against annotations
	on a field or parameter for fine-grained autowire candidate resolution.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element ref="attribute" minOccurs="0" maxOccurs="unbounded"/>
			</xsd:sequence>
			<xsd:attribute name="type" type="xsd:string" default="org.springframework.beans.factory.annotation.Qualifier"/>
			<xsd:attribute name="value" type="xsd:string"/>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="attribute" type="metaType">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A qualifier element may contain attribute child elements as key-value
	pairs. These will be available for matching against attributes of a
	qualifier annotation on an autowired field or parameter if present.
			]]></xsd:documentation>
		</xsd:annotation>
	</xsd:element>

	<xsd:element name="lookup-method">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A lookup method causes the IoC container to override the given method
	and return the bean with the name given in the bean attribute. This is
	a form of Method Injection. It is particularly useful as an alternative
	to implementing the BeanFactoryAware interface,in order to be able to
	make getBean() calls for non-singleton instances at runtime. In this
	case,Method Injection is a less invasive alternative.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="name" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the lookup method. This method must take no arguments.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
					<xsd:attribute name="bean" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the bean in the current or ancestor factories that
	the lookup method should resolve to. Often this bean will be a
	prototype,in which case the lookup method will return a distinct
	instance on every invocation. This is useful for single-threaded objects.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="replaced-method">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Similar to the lookup method mechanism,the replaced-method element
	is used to control IoC container method overriding: Method Injection.
	This mechanism allows the overriding of a method with arbitrary code.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:sequence>
				<xsd:choice minOccurs="0" maxOccurs="unbounded">
					<xsd:element ref="arg-type"/>
				</xsd:choice>
			</xsd:sequence>
			<xsd:attribute name="name" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The name of the method whose implementation must be replaced by the
	IoC container. If this method is not overloaded,there is no need
	to use arg-type subelements. If this method is overloaded,arg-type
	subelements must be used for all override definitions for the method.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
			<xsd:attribute name="replacer" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation source="java:org.springframework.beans.factory.support.MethodReplacer"><![CDATA[
	Bean name of an implementation of the MethodReplacer interface in the
	current or ancestor factories. This may be a singleton or prototype
	bean. If it is a prototype,a new instance will be used for each
	method replacement. Singleton usage is the norm.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="arg-type">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Identifies an argument for a replaced method in the event of
	method overloading.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType mixed="true">
			<xsd:choice minOccurs="0" maxOccurs="unbounded"/>
			<xsd:attribute name="match" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	Specification of the type of an overloaded method argument as a String.
	For convenience,this may be a substring of the FQN. E.g. all the
	following would match "java.lang.String":
	- java.lang.String
	- String
	- Str

	As the number of arguments will be checked also,this convenience
	can often be used to save typing.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="ref">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Defines a reference to another bean in this factory or an external
	factory (parent or included factory).
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="bean" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the referenced bean.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
					<xsd:attribute name="local" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the referenced bean. The value must be a bean ID and will be
	checked by the Spring container. This is therefore the preferred technique
	for referencing beans within the same bean factory XML file.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
					<xsd:attribute name="parent" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the referenced bean in a parent factory.
						]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="idref">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	The id of another bean in this factory or an external factory
	(parent or included factory).
	While a regular 'value' element could instead be used for the
	same effect,using idref indicates that the Spring container
	should check that the value actually corresponds to a bean id.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:restriction base="xsd:anyType">
					<xsd:attribute name="bean" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the referenced bean.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
					<xsd:attribute name="local" type="xsd:string">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	The name of the referenced bean. The value must be a bean ID and will be
	checked by the Spring container. This is therefore the preferred technique
	for referencing beans within the same bean factory XML file.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:restriction>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="value">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Contains a string representation of a property value.
	The property may be a string,or may be converted to the required
	type using the JavaBeans PropertyEditor machinery. This makes it
	possible for application developers to write custom PropertyEditor
	implementations that can convert strings to arbitrary target objects.

	Note that this is recommended for simple objects only. Configure
	more complex objects by populating JavaBean properties with
	references to other beans.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType mixed="true">
			<xsd:choice minOccurs="0" maxOccurs="unbounded"/>
			<xsd:attribute name="type" type="xsd:string">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The exact type that the value should be converted to. Only needed
	if the type of the target property or constructor argument is
	too generic: for example,in case of a collection element.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="null">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Denotes a Java null value. Necessary because an empty "value" tag
	will resolve to an empty String,which will not be resolved to a
	null value unless a special PropertyEditor does so.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType mixed="true">
			<xsd:choice minOccurs="0" maxOccurs="unbounded"/>
		</xsd:complexType>
	</xsd:element>

	<!-- Collection Elements -->
	<xsd:group name="collectionElements">
		<xsd:sequence>
			<xsd:element ref="description" minOccurs="0"/>
			<xsd:choice minOccurs="0" maxOccurs="unbounded">
				<xsd:element ref="bean"/>
				<xsd:element ref="ref"/>
				<xsd:element ref="idref"/>
				<xsd:element ref="value"/>
				<xsd:element ref="null"/>
				<xsd:element ref="array"/>
				<xsd:element ref="list"/>
				<xsd:element ref="set"/>
				<xsd:element ref="map"/>
				<xsd:element ref="props"/>
				<xsd:any namespace="##other" processContents="strict" minOccurs="0" maxOccurs="unbounded"/>
			</xsd:choice>
		</xsd:sequence>
	</xsd:group>

	<xsd:element name="array">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	An array can contain multiple inner bean,ref,collection,or value elements.
	This configuration element will always result in an array,even when being
	defined e.g. as a value for a map with value type Object.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:extension base="listOrSetType">
					<xsd:attribute name="merge" default="default" type="defaultable-boolean">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	Enables/disables merging for collections when using parent/child beans.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:extension>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="list">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A list can contain multiple inner bean,or value elements.
	A list can also map to an array type; the necessary conversion is performed
	automatically.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:extension base="listOrSetType">
					<xsd:attribute name="merge" default="default" type="defaultable-boolean">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	Enables/disables merging for collections when using parent/child beans.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:extension>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="set">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A set can contain multiple inner bean,or value elements.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:extension base="listOrSetType">
					<xsd:attribute name="merge" default="default" type="defaultable-boolean">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	Enables/disables merging for collections when using parent/child beans.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:extension>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="map">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A mapping from a key to an object. Maps may be empty.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:extension base="mapType">
					<xsd:attribute name="merge" default="default" type="defaultable-boolean">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	Enables/disables merging for collections when using parent/child beans.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:extension>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="entry" type="entryType">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A map entry can be an inner bean,value,or collection.
	The key of the entry is given by the "key" attribute or child element.
			]]></xsd:documentation>
		</xsd:annotation>
	</xsd:element>

	<xsd:element name="props">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	Props elements differ from map elements in that values must be strings.
	Props may be empty.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:complexContent>
				<xsd:extension base="propsType">
					<xsd:attribute name="merge" default="default" type="defaultable-boolean">
						<xsd:annotation>
							<xsd:documentation><![CDATA[
	Enables/disables merging for collections when using parent/child beans.
							]]></xsd:documentation>
						</xsd:annotation>
					</xsd:attribute>
				</xsd:extension>
			</xsd:complexContent>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="key">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	A key element can contain an inner bean,or collection.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:group ref="collectionElements"/>
		</xsd:complexType>
	</xsd:element>

	<xsd:element name="prop">
		<xsd:annotation>
			<xsd:documentation><![CDATA[
	The string value of the property. Note that whitespace is trimmed
	off to avoid unwanted whitespace caused by typical XML formatting.
			]]></xsd:documentation>
		</xsd:annotation>
		<xsd:complexType mixed="true">
			<xsd:choice minOccurs="0" maxOccurs="unbounded"/>
			<xsd:attribute name="key" type="xsd:string" use="required">
				<xsd:annotation>
					<xsd:documentation><![CDATA[
	The key of the property entry.
					]]></xsd:documentation>
				</xsd:annotation>
			</xsd:attribute>
		</xsd:complexType>
	</xsd:element>

	<xsd:complexType name="propertyType">
		<xsd:sequence>
			<xsd:element ref="description" minOccurs="0"/>
			<xsd:choice minOccurs="0" maxOccurs="1">
				<xsd:element ref="meta"/>
				<xsd:element ref="bean"/>
				<xsd:element ref="ref"/>
				<xsd:element ref="idref"/>
				<xsd:element ref="value"/>
				<xsd:element ref="null"/>
				<xsd:element ref="array"/>
				<xsd:element ref="list"/>
				<xsd:element ref="set"/>
				<xsd:element ref="map"/>
				<xsd:element ref="props"/>
				<xsd:any namespace="##other" processContents="strict"/>
			</xsd:choice>
		</xsd:sequence>
		<xsd:attribute name="name" type="xsd:string" use="required">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	The name of the property,following JavaBean naming conventions.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="ref" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	A short-cut alternative to a nested "<ref bean='...'/>".
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="value" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	A short-cut alternative to a nested "<value>...</value>" element.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
	</xsd:complexType>

	<!-- Collection Types -->

	<!-- base type for collections that have (possibly) typed nested values -->
	<xsd:complexType name="collectionType">
		<xsd:attribute name="value-type" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation source="java:java.lang.Class"><![CDATA[
	The default Java type for nested values. Must be a fully qualified
	class name.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
	</xsd:complexType>

	<!-- 'list' and 'set' collection type -->
	<xsd:complexType name="listOrSetType">
		<xsd:complexContent>
			<xsd:extension base="collectionType">
				<xsd:group ref="collectionElements"/>
			</xsd:extension>
		</xsd:complexContent>
	</xsd:complexType>

	<!-- 'map' element type -->
	<xsd:complexType name="mapType">
		<xsd:complexContent>
			<xsd:extension base="collectionType">
				<xsd:sequence>
					<xsd:element ref="description" minOccurs="0"/>
					<xsd:choice minOccurs="0" maxOccurs="unbounded">
						<xsd:element ref="entry"/>
					</xsd:choice>
				</xsd:sequence>
				<xsd:attribute name="key-type" type="xsd:string">
					<xsd:annotation>
						<xsd:documentation source="java:java.lang.Class"><![CDATA[
	The default Java type for nested entry keys. Must be a fully qualified
	class name.
						]]></xsd:documentation>
					</xsd:annotation>
				</xsd:attribute>
			</xsd:extension>
		</xsd:complexContent>
	</xsd:complexType>

	<!-- 'entry' element type -->
	<xsd:complexType name="entryType">
		<xsd:sequence>
			<xsd:element ref="key" minOccurs="0"/>
			<xsd:group ref="collectionElements"/>
		</xsd:sequence>
		<xsd:attribute name="key" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	Each map element must specify its key as attribute or as child element.
	A key attribute is always a String value.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="key-ref" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	A short-cut alternative to a to a "key" element with a nested
	"<ref bean='...'/>".
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="value" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	A short-cut alternative to a nested "<value>...</value>"
	element.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="value-ref" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	A short-cut alternative to a nested "<ref bean='...'/>".
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
		<xsd:attribute name="value-type" type="xsd:string">
			<xsd:annotation>
				<xsd:documentation><![CDATA[
	A short-cut alternative to a 'type' attribute on a nested
	"<value type='...' >...</value>" element.
				]]></xsd:documentation>
			</xsd:annotation>
		</xsd:attribute>
	</xsd:complexType>

	<!-- 'props' collection type -->
	<xsd:complexType name="propsType">
		<xsd:complexContent>
			<xsd:extension base="collectionType">
				<xsd:sequence>
					<xsd:choice minOccurs="0" maxOccurs="unbounded">
						<xsd:element ref="prop"/>
					</xsd:choice>
				</xsd:sequence>
			</xsd:extension>
		</xsd:complexContent>
	</xsd:complexType>

	<!-- simple internal types -->
	<xsd:simpleType name="defaultable-boolean">
		<xsd:restriction base="xsd:NMTOKEN">
			<xsd:enumeration value="default"/>
			<xsd:enumeration value="true"/>
			<xsd:enumeration value="false"/>
		</xsd:restriction>
	</xsd:simpleType>

</xsd:schema>

版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。

相关推荐


开发过程中是不可避免地会出现各种异常情况的,例如网络连接异常、数据格式异常、空指针异常等等。异常的出现可能导致程序的运行出现问题,甚至直接导致程序崩溃。因此,在开发过程中,合理处理异常、避免异常产生、以及对异常进行有效的调试是非常重要的。 对于异常的处理,一般分为两种方式: 编程式异常处理:是指在代
说明:使用注解方式实现AOP切面。 什么是AOP? 面向切面编程,利用AOP可以对业务逻辑的各个部分进行隔离,从而使得业务逻辑各部分之间的耦合度降低,提高程序的可重用性,同时提高了开发的效率。 通俗描述:不通过修改源代码方式,在主干功能里面添加新功能。 AOP底层使用动态代理。 AOP术语 连接点
Spring MVC中的拦截器是一种可以在请求处理过程中对请求进行拦截和处理的机制。 拦截器可以用于执行一些公共的操作,例如日志记录、权限验证、数据转换等。在Spring MVC中,可以通过实现HandlerInterceptor接口来创建自定义的拦截器,并通过配置来指定拦截器的应用范围和顺序。 S
在 JavaWeb 中,共享域指的是在 Servlet 中存储数据,以便在同一 Web 应用程序的多个组件中进行共享和访问。常见的共享域有四种:ServletContext、HttpSession、HttpServletRequest、PageContext。 ServletContext 共享域:
文件上传 说明: 使用maven构建web工程。 使用Thymeleaf技术进行服务器页面渲染。 使用ResponseEntity实现下载文件的功能。 @Controller public class FileDownloadAndUpload { @GetMapping(&quot;/file/d
创建初始化类,替换web.xml 在Servlet3.0环境中,Web容器(Tomcat)会在类路径中查找实现javax.servlet.ServletContainerInitializer接口的类,如果找到的话就用它来配置Servlet容器。 Spring提供了这个接口的实现,名为SpringS
在 Web 应用的三层架构中,确保在表述层(Presentation Layer)对数据进行检查和校验是非常重要的。正确的数据校验可以确保业务逻辑层(Business Logic Layer)基于有效和合法的数据进行处理,同时将错误的数据隔离在业务逻辑层之外。这有助于提高系统的健壮性、安全性和可维护
什么是事务? 事务(Transaction)是数据库操作最基本单元,逻辑上一组操作,要么都成功,要么都失败,如果操作之间有一个失败所有操作都失败 。 事务四个特性(ACID) 原子性 一组操作要么都成功,要么都失败。 一致性 一组数据从事务1合法状态转为事务2的另一种合法状态,就是一致。 隔离性 事
什么是JdbcTemplate? Spring 框架对 JDBC 进行封装,使用 JdbcTemplate 方便实现对数据库操作。 准备工作 引入jdbcTemplate的相关依赖: 案例实操 创建jdbc.properties文件,配置数据库信息 jdbc.driver=com.mysql.cj.
SpringMVC1.MVC架构MVC是模型(Model)、视图(View)、控制器(Controller)的简写,是一种软件设计规范是将业务逻辑、数据、显示分离的方法来写代码MVC主要作用是:降低了视图和业务逻辑之间的双向耦合MVC是一个架构模型,不是一种设计模式。1.model(模型)数据模型,提供要展示的数据,因此包
SpringMVC学习笔记1.SpringMVC应用1.1SpringMVC简介​SpringMVC全名叫SpringWebMVC,是⼀种基于Java的实现MVC设计模型的请求驱动类型的轻量级Web框架,属于SpringFrameWork的后续产品。​MVC全名是ModelViewController,是模型(model)-视图(view)-控制器(co
11.1数据回显基本用法数据回显就是当用户数据提交失败时,自动填充好已经输入的数据。一般来说,如果使用Ajax来做数据提交,基本上是没有数据回显这个需求的,但是如果是通过表单做数据提交,那么数据回显就非常有必要了。11.1.1简单数据类型简单数据类型,实际上框架在这里没有
一、SpringMVC简介1、SpringMVC中重要组件DispatcherServlet:前端控制器,接收所有请求(如果配置/不包含jsp)HandlerMapping:解析请求格式的.判断希望要执行哪个具体的方法.HandlerAdapter:负责调用具体的方法.ViewResovler:视图解析器.解析结果,准备跳转到具体的物
1.它们主要负责的模块Spring主要应用于业务逻辑层。SpringMVC主要应用于表现层。MyBatis主要应用于持久层。2.它们的核心Spring有三大核心,分别是IOC(控制反转),DI(依赖注入)和AOP(面向切面编程)。SpringMVC的核心是DispatcherServlet(前端控制器)。MyBatis的核心是ORM(对
3.注解开发Springmvc1.使用注解开发要注意开启注解支持,2.注解简化了,处理映射器和处理适配器,只用去管视图解析器即可案例代码:1.web.xml,基本不变可以直接拿去用<!--调用DispatcherServlet--><servlet><servlet-name>springmvc</servlet-name>
拦截器概述SpringMVC的处理器拦截器类似于Servlet开发中的过滤器Filter,用于对处理器进行预处理和后处理。开发者可以自己定义一些拦截器来实现特定的功能。**过滤器与拦截器的区别:**拦截器是AOP思想的具体应用。过滤器servlet规范中的一部分,任何javaweb工程都可以使用
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:xsi="
学习内容:1、SSH&SSM2、Spring3、Struts2&SpringMVC4、Hibernate&MyBatis学习产出:1.SSH和SSM都是有Spring框架的,他们两个差不多。2.Spring分为四个模块,持久层,表示层,检测层,还有核心层,核心层分为2个关键核心功能。分别为,控制反转(IOC),依赖注入(DI),和面向切面编程
一、SpringMVC项目无法引入js,css的问题具体原因是css和js等被SpringMVC拦截了:解决方案:在spring-mvc.xml中配置<mvc:default-servlet-handler/><?xmlversion="1.0"encoding="UTF-8"?><beansxmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
开发环境:Eclipse/MyEclipse、Tomcat8、Jdk1.8数据库:MySQL前端:JavaScript、jQuery、bootstrap4、particles.js后端:maven、SpringMVC、MyBatis、ajax、mysql读写分离、mybatis分页适用于:课程设计,毕业设计,学习等等系统介绍