spring - 提供静态内容会导致请求方法 'GET' 不受支持

Question

我想从项目资源中的静态目录提供静态内容，但出现错误:org.springframework.web.HttpRequestMethodNotSupportedException:不支持请求方法“GET”。

我添加了已配置的 Spring Security 来忽略以“/static/”开头的请求。我已将资源处理程序添加到 WebMvcConfig 以查找各个不同位置的静态内容，我已尝试完全删除资源处理程序。

我尝试将 PermitAll() 添加到“/static/”路径。

我用谷歌搜索了错误消息及其各种组合来找到解决方案。这就是我想出 Spring Security 和 WebMvcConfigs 的地方。只是这些并没有解决我的问题。

最后我尝试将静态文件放置到不同的位置。目录结构如下:

\resources\static\hello.css
\resources\static\css\hello.css
\resources\templates\home.html
\resources\templates\error.html

Thymeleaf 工作正常，从模板目录中获取模板。

WebMvcConfig:

// Config Thymeleaf
private static final String VIEWS = "classpath:templates/";

@Bean
public ViewResolver viewResolver() {
    ThymeleafViewResolver resolver = new ThymeleafViewResolver();
    resolver.setTemplateEngine(templateEngine());
    resolver.setCharacterEncoding("UTF-8");
    return resolver;
}

private ISpringTemplateEngine templateEngine() {
    SpringTemplateEngine engine = new SpringTemplateEngine();
    engine.setTemplateResolver(templateResolver());
    return engine;
}

private ITemplateResolver templateResolver() {
    SpringResourceTemplateResolver resolver = new SpringResourceTemplateResolver();
    resolver.setApplicationContext(applicationContext);
    resolver.setPrefix(VIEWS);
    resolver.setSuffix(".html");
    resolver.setTemplateMode(TemplateMode.HTML);
    return resolver;
}

// Enable static resources
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry
            .addResourceHandler("/static/**")
            .addResourceLocations("/resources/static/", "classpath:static/", "/static/", "classpath:resources/static");
}

Spring 安全配置:

@Override
public void configure(WebSecurity web) throws Exception {
    web
        .ignoring()
        .antMatchers("/static/**");
}

我希望看到我的 css 文件，但我看到的是异常处理程序生成的错误页面，并显示消息“请求方法‘GET’不支持”

这是我请求 css 文件时的调试跟踪:

2019-06-07 11:30:29.694 DEBUG 5398 --- [nio-8080-exec-2] o.s.s.w.u.matcher.AntPathRequestMatcher  : Checking match of request : '/static/css/hello.css'; against '/static/**'
2019-06-07 11:30:29.694 DEBUG 5398 --- [nio-8080-exec-2] o.s.security.web.FilterChainProxy        : /static/css/hello.css has an empty filter list
org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'GET' not supported
at org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:200)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:419)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:365)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:65)
at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:401)
at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1232)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1015)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:209)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:836)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1747)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)

Answer 1

经过几个小时的调试，我找到了静态内容未提供的原因! 这是因为 Controller 的映射没有路径:

@PostMapping()

将路径添加到映射后，上面的配置将按预期工作。 很奇怪，它搞乱了静态文件的服务!

非常感谢@Ganesh 在 Spring Boot not serving static content 中提供的提示