我正在尝试在Spring MVC控制器(版本3.0.2)中使用RequestMethod.PUT和RequestMethod.DELETE。在Spring控制器类中,有三种与URL映射的方法,如下所示(分别是PUT,GET和POST,仅用于演示目的)。
RequestMethod.PUT
RequestMethod.DELETE
@RequestMapping(method = {RequestMethod.PUT}, value = {"admin_side/Temp"}, headers = {"content-type=multipart/form-data"}) public String update(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map model, HttpServletRequest request, HttpServletResponse response) { if (ServletFileUpload.isMultipartContent(request)) { System.out.println("true"); } System.out.println("Request method PUT"); return "admin_side/Temp"; } @RequestMapping(method = {RequestMethod.GET}, value = {"admin_side/Temp"}) public String showForm(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map model, HttpServletRequest request, HttpServletResponse response) { System.out.println("Request method GET"); return "admin_side/Temp"; } @RequestMapping(method = {RequestMethod.POST}, value = {"admin_side/Temp"}) public String onSubmit(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map model, HttpServletRequest request, HttpServletResponse response) { System.out.println("Request method POST"); return "admin_side/Temp"; }
加载页面时,该GET方法将很明显地被调用,但是在所有其他情况下(提交页面时),唯一要调用POST的方法RequestMethod.PUT是,永远不会调用用指定的方法。
GET
Spring表单仅包含一个提交按钮和一个图像浏览器,
<form:form id="mainForm" name="mainForm" method="PUT" action="Temp.htm" enctype="multipart/form-data" commandName="tempBean"> <input type="file" id="myFile" name="myFile"/> <input type="submit" id="btnSubmit" name="btnSubmit" value="Submit"/> </form:form>
生成的HTML如下,
<form id="mainForm" name="mainForm" action="Temp.htm" method="post" enctype="multipart/form-data"> <input type="hidden" name="_method" value="PUT"/> <!--This hidden field is implicitly included--> <input type="file" id="myFile" name="myFile"/> <input type="submit" id="btnSubmit" name="btnSubmit" value="Submit"/> </form>
在我spring-config.xml(dispatcher-servlet.xml就我而言)中,我添加了对以下内容的引用CommonsMultipartResolver:
spring-config.xml
dispatcher-servlet.xml
<bean id="filterMultipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>
在我的web.xml文件中,HiddenHttpMethodFilter配置如下
web.xml
HiddenHttpMethodFilter
<filter> <filter-name>MultipartFilter</filter-name> <filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class> <init-param> <param-name>multipartResolverBeanName</param-name> <param-value>filterMultipartResolver</param-value> </init-param> </filter> <filter-mapping> <filter-name>MultipartFilter</filter-name> <servlet-name>/*</servlet-name> </filter-mapping> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <servlet-name>/*</servlet-name> </filter-mapping>
PUT(and DELETE too)方法永远不会调用(没有异常或错误)。我在这里想念什么?
PUT
更新:
通过以下配置web.xml,
<filter> <filter-name>MultipartFilter</filter-name> <filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class> <init-param> <!-- Makes no difference, if excluded. --> <param-name>multipartResolverBeanName</param-name> <param-value>filterMultipartResolver</param-value> </init-param> </filter> <filter-mapping> <filter-name>MultipartFilter</filter-name> <servlet-name>dispatcher</servlet-name> <!--Changed from /* to dispatcher--> </filter-mapping> <filter> <filter-name>HiddenHttpMethodFilter</filter-name> <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class> </filter> <filter-mapping> <filter-name>HiddenHttpMethodFilter</filter-name> <servlet-name>dispatcher</servlet-name> <!--Changed from /* to dispatcher--> </filter-mapping>
它将引发以下异常。
org.springframework.beans.factory.NoSuchBeanDefinitionException:未定义名为“ filterMultipartResolver”的bean
其中的名称dispatcher是Servlet的名称- org.springframework.web.servlet.DispatcherServlet如下已在web.xml中进行了映射。
dispatcher
org.springframework.web.servlet.DispatcherServlet
<servlet> <servlet-name>dispatcher</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcher</servlet-name> <url-pattern>*.htm</url-pattern> </servlet-mapping>
我不确定还需要什么?在过滤器HiddenHttpMethodFilter需要我们自己的扩展来实现OncePerRequestFilter类似所示的位置?(这是一个内置的类)
大多数浏览器不支持action=PUTHTML表单。他们只会发送POST请求。该HiddenHttpMethodFilter会帮助你解决问题,但你必须有一个隐藏字段_method=PUT在你的形式。如果使用spring:form标签库,这将自动为你完成,但是你的示例似乎使用纯HTML。
action=PUT
_method=PUT
这NoSuchBeanDefinitionException很可能是一个不相关的问题。
NoSuchBeanDefinitionException