当url模式是路径时，无法让Spring MVC调度程序正常工作 [英] Can't get Spring MVC dispatcher to work properly when url pattern is a path

问题描述

我有一个网络应用程序，我们目前正在为REST服务应用spring MVC。我们希望我们的休息服务显示在 $ {contextPath} / rest / ** 下，但是当我设置它时，我们得到：

I have a web app that we're applying spring MVC just for REST services at the moment. We want our rest services to appear under ${contextPath}/rest/**, however when I set this we get:

在DispatcherServlet中找不到带有URI [/ myapp / rest / testSvc / message]的HTTP请求的映射，名称为Spring MVC Dispatcher Servlet

No mapping found for HTTP request with URI [/myapp/rest/testSvc/message] in DispatcherServlet with name 'Spring MVC Dispatcher Servlet'

我的 web.xml 有：

<servlet>
  <servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
      /WEB-INF/spring/servlet-context.xml
    </param-value>
  </init-param>
  <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
  <servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
  <url-pattern>/rest</url-pattern>
</servlet-mapping>

servlet-context.xml ，这是罚款，并在注册启动时注册服务。

servlet-context.xml, which is fine and is registering services as they get registered at startup.

<context:component-scan base-package="com.mycompany.myapp.rest" />
<mvc:annotation-driven />

我的控制器如下所示：

@Controller
@RequestMapping(value = "/rest/testService")
public class TestREST {
    @RequestMapping(value="message", method=RequestMethod.GET)
    public @ResponseBody String getMessage() {
        return "REST working";
    }

如果我改变 url-pattern 在 web.xml 到* .rest和我的请求映射消息到 message.rest 它有效。

If I cahnge the url-pattern in web.xml to *.rest and my request-mapping for message to message.rest it works.

推荐答案

问题可能是你重复了 / rest 前缀在 web.xml 和 @RequestMapping 。它应该在一个或两个中，但不是两个，例如

The problem is likely that you have repeated the /rest prefix in both web.xml and @RequestMapping. It should be in one or the either, but not both, e.g.

<url-pattern>/rest</url-pattern>

和

@RequestMapping(value = "/testService")

<$ c的路径$ c> @RequestMapping operations是servlet部分后面的路径的一部分，而 web.xml 将servlet部分定义为 / path ，所以 @RequestMapping 匹配剩下的东西，即 / testService 。

The paths upon which @RequestMapping operates are the parts of the path that follows the servlet part, and your web.xml defines the servlet part as /path, so @RequestMapping matches against whatever is left, i.e. /testService.

在当前形式中，您的 @RequestMapping 实际上与 {匹配contextPath} / rest / rest / testService 。

In its current form, your @RequestMapping is actually matching against {contextPath}/rest/rest/testService.

这篇关于当url模式是路径时，无法让Spring MVC调度程序正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！