Spring REST DELETE 示例错误

Question

我想实现 Spring REST 方法。我尝试了 Get 并且它有效：

@RequestMapping(value = "{systemId}", method = RequestMethod.GET)
    public
    @ResponseBody
    Configuration getConfigurationInJSON(HttpServletResponse response, @PathVariable long systemId) throws IOException {
        if (configurationMap.containsKey(systemId)) {
            return configurationMap.get(systemId);
        } else {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return null;
        }
    }

但是当我想实现 DELETE 时它却不起作用。我的方法是：

@RequestMapping(value = "{systemId}", method = RequestMethod.DELETE)
    public void deleteConfiguration(HttpServletResponse response, @PathVariable long systemId) throws IOException {
        if (configurationMap.containsKey(systemId)) {
            configurationMap.remove(systemId);
            response.setStatus(HttpServletResponse.SC_FOUND);
        } else {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
        }

    }

我的web.xml如下：

MVC 调度程序 org.springframework.web.servlet.DispatcherServlet 1

<servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/ui/*</url-pattern>
</servlet-mapping>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

当我尝试使用 Curl 进行 GET 时有效的命令：

curl http://localhost:8080/ui/webapp/conf/1

当我尝试使用 Curl 进行 DELETE 时不起作用的命令：

curl -x delete http://localhost:8080/ui/webapp/conf/1

第二个命令在一段时间后在 curl 处给出该错误：

curl: (7) couldn't connect to host

Tomcat 端没有错误，并且在调试时没有错误t 输入删除方法主体。

有什么想法吗？

Answer 1

尝试

curl -X DELETE http://localhost:8080/ui/webapp/conf/1

使用大写 DELETE 和大写 X