在Spring MVC中使用PUT和DELETE方法

Question

我试图使用RequestMethod.PUT和RequestMethod.DELETESpring MVC中控制器(3.0.2版).在Spring控制器类中有三个映射方法的方法如下(分别为PUT,GET和POST,仅用于演示目的).

@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,GET显式调用该方法,但在所有其他情况下(提交页面时),唯一要调用POST的方法RequestMethod.PUT是,从不调用指定的方法.

---

Spring表单只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在我的情况下),我添加了一个引用CommonsMultipartResolver:

<bean id="filterMultipartResolver"
      class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>

在我的web.xml文件中,HiddenHttpMethodFilter配置如下,

<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>

的PUT(和DELETE太)方法永远不会调用(没有异常或错误).我在这里错过了什么？

---

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>

它抛出以下异常.

org.springframework.beans.factory.NoSuchBeanDefinitionException:没有定义名为'filterMultipartResolver'的bean

其中名称dispatcher是Servlet的名称 - org.springframework.web.servlet.DispatcherServlet已在web.xml中映射,如下所示.

<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)

这里列出了重点.

Answer 1

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在您的形式.如果您使用spring:form taglib,这将自动为您完成,但您的示例似乎使用纯HTML.

这NoSuchBeanDefinitionException很可能是一个无关的问题.