Spring MVC HTTP状态404 –找不到

分类：编程问答

如何解决Spring MVC HTTP状态404 –找不到

我正在对SPRING MVC进行分配，它给了我这个错误HTTP状态404 –找不到

Type Status Report

Message The requested resource [/MVCLAB5/reservation/bookingForm] is not available

Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.


Apache Tomcat/9.0.37

这是index.jsp 

<html>
<head>
    <title>Hospital Management System</title>
</head> 
<body>

    <a href="reservation/bookingForm">Add New Patient</a><br>
    
    <a href="#">Edit Patient</a><br>
    <a href="#">Delete Patient sda</a>

</body>
</html>

这是com.javatpoint.Reservation.java 

package com.javatpoint;

public class Reservation {
    
    private String firstName;
    private String lastName;
    
    public Reservation()
    {
    }
    
    public String getFirstName() {return firstName;}
    
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    
    public String getLastName() {return lastName;}
    
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }

}

此com.javatpoint.ReservationController.java 

package com.javatpoint;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;



@RequestMapping("/reservation")
@Controller 
public class ReservationController {
    
    @RequestMapping("/bookingForm")
    public String bookingForm(Model model)
    {
        
     //create a reservation object
     Reservation res = new Reservation();
     //provide reservation object to the model
     model.addAttribute("reservation",res);
     return "reservation-page";
    }
    @RequestMapping("/submitForm")
    // @ModelAttribute binds form data to the object
    public String submitForm(@ModelAttribute("reservation") Reservation res)
    {
     return "confirmation-form";
    } 

}

此web.xml 

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchemainstance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://ja
va.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/webapp_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>SpringMVC</display-name>
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
 <servlet-name>spring</servlet-name>
 <url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

这个spring-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: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.xsd
http://www.springframework.org/schema/context
 http://www.springframework.org/schema/context/spring-context.xsd
 http://www.springframework.org/schema/mvc
 http://www.springframework.org/schema/mvc/spring-mvc.xsd">
 <!-- Provide support for component scanning -->
 <context:component-scan base-package="com.javatpoint" />
 <!--Provide support for conversion,formatting and validation -->
 <mvc:annotation-driven/>
 <!-- Define Spring MVC view resolver -->
 <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalR
esourceViewResolver">
 <property name="prefix" value="/WEB-INF/jsp/"></property>
 <property name="suffix" value=".jsp"></property>
 </bean>
</beans>

这是Reservation-page.jsp 

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>New Patient Form</title>
</head>
<h2>Add New Patient</h2>
<body>
    
    <form:form action="submitForm" modelAttribute="reservation">
            First name: <form:input path="firstName" />
            <br><br>
            Last name: <form:input path="lastName" />
            <br><br>
            <input type="submit" value="Submit" />
    </form:form> 
    

</body>
</html>

此确认书.jsp 

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>New Patient</title>
</head>
<body>

    <p>Your reservation is confirmed successfully. Please,re-check the details.</p>
        First Name : ${reservation.firstName} <br>
        Last Name : ${reservation.lastName}

</body>
</html>

此pom.xml 

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>SDALab5</groupId>
  <artifactId>MVCLAB5</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>MVCLAB5 Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>5.1.1.RELEASE</version>
    </dependency> 
    <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
    <dependency>
         <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
         <version>3.0-alpha-1</version>
    </dependency>

 <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
<!-- https://mvnrepository.com/artifact/org.apache.tomcat/tomcat-jasper -->
    <dependency>
        <groupId>org.apache.tomcat</groupId>
        <artifactId>tomcat-jasper</artifactId>
        <version>9.0.12</version>
    </dependency>
    
  </dependencies>
  
  

  <build>
    <finalName>MVCLAB5</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

这是我的项目目录

enter image description here

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