添加@CssImport

分类：编程问答

如何解决添加@CssImport

我是集成了 spring 的 Vaadin14 business starter app 用户，我正在尝试添加样式，但是如果我添加了 css 文件，则会出现错误

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:162) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:582) ~[spring-context-5.3.3.jar:5.3.3]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2]
    at lu.prefalux.chantier.base.Application.main(Application.java:11) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]
    at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.4.2.jar:2.4.2]
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:451) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:200) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:181) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:159) ~[spring-boot-2.4.2.jar:2.4.2]
    ... 14 common frames omitted
Caused by: java.lang.IllegalStateException: StandardEngine[Tomcat].StandardHost[localhost].TomcatEmbeddedContext[] failed to start
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.rethrowDeferredStartupExceptions(TomcatWebServer.java:187) ~[spring-boot-2.4.2.jar:2.4.2]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:126) ~[spring-boot-2.4.2.jar:2.4.2]
    ... 19 common frames omitted


Process finished with exit code 0

这是我要添加的代码

@CssImport(value = "./styles/components/charts.css",themeFor = "vaadin-chart",include = "vaadin-chart-default-theme")
@CssImport(value = "./styles/components/floating-action-button.css",themeFor = "vaadin-button")
@CssImport(value = "./styles/components/grid.css",themeFor = "vaadin-grid")
@CssImport("./styles/lumo/border-radius.css")
@CssImport("./styles/lumo/icon-size.css")
@CssImport("./styles/lumo/margin.css")
@CssImport("./styles/lumo/padding.css")
@CssImport("./styles/lumo/shadow.css")
@CssImport("./styles/lumo/spacing.css")
@CssImport("./styles/lumo/typography.css")
// the import below is mine
@CssImport("./styles/lumo/styles.css")
@CssImport("./styles/misc/box-shadow-borders.css")
@CssImport(value = "./styles/styles.css",include = "lumo-badge")
@JsModule("@vaadin/vaadin-lumo-styles/badge")
@PWA(name = "Chantier",shortName = "Chantier",iconPath = "images/logo-18.png",backgroundColor = "#233348",themeColor = "#233348")
@Viewport("width=device-width,minimum-scale=1.0,initial-scale=1.0,user-scalable=yes")
public class MainLayout extends FlexBoxLayout
        implements RouterLayout,PageConfigurator,AfterNavigationObserver {

我尝试用唯一的名称命名它，但仍然出现错误。当我修改项目中已有的 css 文件之一时，不会考虑任何更改。

解决方法

我正在使用 IntelliJ（在一个多模块项目中），为了解决这个问题，我将 run/debug configurations 添加到我的前端文件所在的模块的 working directory 中。

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