Spring不支持请求方法“POST”

Question

我正在编写一个控制器来处理来自AJAX的帖子。我一直收到一个错误，那篇文章不受支持。我以前在尝试创建后控制器方法时从未遇到过以下错误，我希望有人能发现我在哪里搞砸了。

org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported
    at org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:204) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:365) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:305) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:60) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:351) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1120) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:932) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) ~[spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:968) [spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:870) [spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) [servlet-api.jar:na]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:844) [spring-webmvc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) [servlet-api.jar:na]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.55]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) [tomcat7-websocket.jar:7.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:748) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:486) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:411) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:338) [catalina.jar:7.0.55]
    at org.springframework.security.web.firewall.RequestWrapper$FirewalledRequestAwareRequestDispatcher.forward(RequestWrapper.java:139) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.access.AccessDeniedHandlerImpl.handle(AccessDeniedHandlerImpl.java:71) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:110) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) [spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176) [spring-security-web-4.0.4.RELEASE.jar:4.0.4.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) [spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) [spring-web-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) [catalina.jar:7.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) [catalina.jar:7.0.55]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) [catalina.jar:7.0.55]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) [catalina.jar:7.0.55]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) [catalina.jar:7.0.55]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) [catalina.jar:7.0.55]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) [catalina.jar:7.0.55]
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) [catalina.jar:7.0.55]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) [catalina.jar:7.0.55]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) [catalina.jar:7.0.55]
    at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190) [tomcat-coyote.jar:7.0.55]
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) [tomcat-coyote.jar:7.0.55]
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314) [tomcat-coyote.jar:7.0.55]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_74]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_74]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-coyote.jar:7.0.55]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_74]

这是我为控制控制器中的帖子而编写的方法：

@RequestMapping(value = "/clearVendorBillingPO", method = RequestMethod.POST)
public @ResponseBody String setClearVendorBillingPO(HttpServletRequest request, @RequestParam("Id") BigInteger Id)
                throws Exception {
    System.out.println("sucess!!");
    return "str";
}

使用JQuery 1.10，这是请求它的Ajax调用:

$.ajax({
    url : '/UI/clearVendorBillingPO',
    dataType: 'json',
    type : 'POST',
    data : { "Id": Id, "_csrf":csrf },
    async : true,
    success : function(data) {
        console.log("successful!")
    },
    fail: function(e) {
        jqAlert("There was a problem clearing the PO"); 
    }
});

我知道POST地址是正确的，因为将它转换成GET请求就可以了。此外，我还编写了其他POST请求，它们在同一个控制器类中也能正常工作。任何可能导致这个问题的见解都是非常感谢的！

Answer 1

您的ajax调用中有一个错误。是方法：“POST”不是类型。

$.ajax({
    url : '/UI/clearVendorBillingPO',
    dataType: 'json',
    method : 'POST',
    ...