【错误处理】上传文件出错returned a response status of 405 Method Not Allowed，400

异常

Type 异常报告

消息 Request processing failed; nested exception is com.sun.jersey.api.client.UniformInterfaceException: PUT http://localhost:9090/spring_file_server_war_exploded/upload/a19dfbef613d4127926c0ccd82881376_SnapShot_2020-03-17_15-51-14.png returned a response status of 405 Method Not Allowed

描述 服务器遇到一个意外的情况，阻止它完成请求。

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.sun.jersey.api.client.UniformInterfaceException: PUT http://localhost:9090/spring_day2_file_server_war_exploded/upload/a19dfbef613d4127926c0ccd82881376_SnapShot_2020-03-17_15-51-14.png returned a response status of 405 Method Not Allowed
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:986)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:881)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
Root Cause

com.sun.jersey.api.client.UniformInterfaceException: PUT http://localhost:9090/spring_day2_file_server_war_exploded/upload/a19dfbef613d4127926c0ccd82881376_SnapShot_2020-03-17_15-51-14.png returned a response status of 405 Method Not Allowed
	com.sun.jersey.api.client.WebResource.voidHandle(WebResource.java:709)
	com.sun.jersey.api.client.WebResource.put(WebResource.java:208)
	com.qichun.controller.UserController.testUpload3(UserController.java:154)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209)
	org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:871)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:777)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:978)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:881)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:855)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
):注意 主要问题的全部 stack 信息可以在 server logs 里查看

环境

• tomcat8
• win10
• idea部署

问题描述

向服务器上传文件报错，状态码405，400。
可能出现问题：

• tomcat不允许写入请求a response status of 405 Method Not Allowed;
• 上传的文件出错，常见的是文件名无法解析中文
• 上传的地址错误，拼错URL

解决方法

1. 修改tomcat的web.xml配置文件，允许http请求方法写入文件
   找到tomcat安装目录，修改conf文件夹下的web.xml文件。
   

<init-param>
            <param-name>readonly</param-name>
            <param-value>false</param-value>
</init-param>

参数释义：
如果运行环境readonly（只读），则tomcat会拒绝所有的HTTP的修改方法（如put，delete），默认为true。

  <!--   readonly            Is this context "read only", so HTTP           -->
  <!--                       commands like PUT and DELETE are               -->
  <!--                       rejected?  [true]                              -->

2. 上传文件名引起的错误可以对文件名进行转码即可解决，可以先用非中文文件名的文件试一试。

3. 通过输出语句可以检测上传URL是否出错，纠错后再次尝试。