Question

我在SpringMVC中的servlet在一般情况下正常实现REST Api，但是当我尝试删除子资源时出现了一个奇怪的错误。

说我有： - 用户作为父资源 - 作为子资源的地址

如果我创建（POST），更新（PUT）或检索（GET）地址一切正常，但当我尝试删除它时，我收到404未找到并查看我看到的日志

 servlet.DispatcherServlet (DispatcherServlet.java:1218) - Rendering view 

[org.springframework.web.servlet.view.InternalResourceView: name 'users/544e6b02300429b462c6b8ea/billing-addresses/4'; URL [users/544e6b02300429b462c6b8ea/billing-addresses/4]] in DispatcherServlet with name 'api-dispatcher'
 view.AbstractView (AbstractView.java:377) - Added model object 'id_user' of type [java.lang.String] to request in view with name 'users/544e6b02300429b462c6b8ea/billing-addresses/4'
 view.AbstractView (AbstractView.java:377) - Added model object 'id_addresses' of type [java.lang.String] to request in view with name 'users/544e6b02300429b462c6b8ea/billing-addresses/4'
 view.InternalResourceView (InternalResourceView.java:207) - Forwarding to resource [users/544e6b02300429b462c6b8ea/billing-addresseses/4] in InternalResourceView 'users/544e6b02300429b462c6b8ea/billing-addresses/4'
 servlet.DispatcherServlet (DispatcherServlet.java:838) - DispatcherServlet with name 'api-dispatcher' processing DELETE request for [/rest-local/rest/users/544e6b02300429b462c6b8ea/billing-addresses/users/544e6b02300429b462c6b8ea/billing-addresses/4]
 handler.AbstractHandlerMethodMapping (AbstractHandlerMethodMapping.java:246) - Looking up handler method for path /users/544e6b02300429b462c6b8ea/billing-addresses/users/544e6b02300429b462c6b8ea/billing-addresses/4
 handler.AbstractHandlerMethodMapping (AbstractHandlerMethodMapping.java:254) - Did not find handler method for [/users/544e6b02300429b462c6b8ea/billing-addresses/users/544e6b02300429b462c6b8ea/billing-addresses/4]
 servlet.DispatcherServlet (DispatcherServlet.java:1114) - No mapping found for HTTP request with URI [/rest-local/rest/users/544e6b02300429b462c6b8ea/billing-addresses/users/544e6b02300429b462c6b8ea/billing-addresses/4] in DispatcherServlet with name 'api-dispatcher'
 servlet.FrameworkServlet (FrameworkServlet.java:991) - Successfully completed request
 servlet.FrameworkServlet (FrameworkServlet.java:991) - Successfully completed request

出于某种原因，我不知道它在某个时刻附加了相对路径两次，当然最终路径没有被处理，我得到了404找不到。

在代码库中，这是我尝试删除子资源时唯一的情况，因为DELETE正在运行的所有现有资源，只有在这种情况下，我才会看到这种奇怪的行为（此资源的代码完全相同，对于其他人）。

服务器端映射是：

 @RequestMapping(value = "/{id_user}/billing-addresses/{id_address}", method = RequestMethod.DELETE, produces = "application/json")
    public ModelAndView deleteBillingAddress(@PathVariable("id_user") String idUser,
                                             @PathVariable("id_address") String idAddress,
                                             HttpServletResponse httpServletResponse,
                                             Principal principal)

我正在测试它：

curl -i -X DELETE \
   -H "Content-Type:application/json" \
   -H "Accept-Language:it" \
 'http://localhost:8081/rest-local/rest/users/544e6b02300429b462c6b8ea/billing-addresses/4'

有什么想法吗？

Answer 1

问题是我返回了一个用new ModelAndView()实例化的空ModelAndView对象。

现在我改变了它：

new ModelAndView(this.userMapperView, DATA_FIELD, billingAddress);

不确定这是最好的方法，但至少现在它有效。

/ a / {id_a} / b / {id_b}的HTTP删除在SpringMVC中变为/ a / {id_a} / b / {id_b} / a / {id_a} / b / {id_b}

1 个答案: