Spring MVC - 使用Ajax上传多部分文件(无法解析多部分servlet请求)

时间:2014-08-17 14:51:21

标签: java ajax spring spring-mvc multipartform-data

我尝试使用Ajax,Spring MVC 3.2.0,Tomcat 8.0.9上传多部分文件,但无法使其正常工作。我在stackoverflow(Spring upload file problemsMultipartConfig with Servlet 3.0 on Spring MVC,...)上阅读了很多博客和类似的帖子,这似乎有类似的原因,但无法弄清楚如何解决它。奇怪的是,当文件小于1MB时上传工作,但是当录制的视频超过该大小时,会引发以下错误:

org.springframework.web.multipart.MultipartException: Could not parse multipart servlet request; nested exception is org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. null
org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:163)
org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:139)
org.springframework.web.multipart.support.MultipartFilter.doFilterInternal(MultipartFilter.java:110)

在下文中,您可以看到我所做的所有配置:

  1. AJAX POST-Request:

    var videoBlob = e.data;
    var pathArray = window.location.pathname.split( '/' );
    var userID;
    
    for (i = 0; i < pathArray.length; i++) {
        if (pathArray[i].toString() == "edit"){
            userID = pathArray[i+1];
        }
    }
    
    var fd = new FormData();
    fd.append('fname', 'video');
    fd.append('data', videoBlob);
    
    $.ajax({
        url: '/user/edit/uploadVideo/' + userID,
        data: fd,
        processData: false,
        contentType: false,
        type: 'POST',
        success: function(data)
        {
            $('#result').html(data + "uploaded by FormData!");
        }
    });
    
  2. web.xml

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:root-context.xml</param-value>
    </context-param>
    
    <context-param>
        <param-name>spring.profiles.default</param-name>
        <param-value>common</param-value>
    </context-param>
    
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    <servlet>
        <servlet-name>appServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:servlet-context.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    
    <servlet-mapping>
        <servlet-name>appServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    
    <filter>
        <display-name>springMultipartFilter</display-name>
        <filter-name>springMultipartFilter</filter-name>
        <filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class>
    </filter>
    
    <filter-mapping>
        <filter-name>springMultipartFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
  3. servlet-context.xml

    <mvc:annotation-driven />
    <mvc:resources mapping="/**" location="/resources/" />
    
    <context:component-scan base-package="de.talentwuerfel"/>
    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/pages/" />
    <property name="suffix" value=".jsp" />
    </bean>
    
    <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
    <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
    <property name="url" value="jdbc:mysql://localhost:3306/schema"/>
    <property name="username" value="root"/>
    <property name="password" value=""/>
    <property name="validationQuery" value="SELECT 1"/>
    </bean>
    
    <bean id="mySessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
    <property name="dataSource" ref="myDataSource"/>
    <property name="packagesToScan">
        <array>
            <value>de.talentwuerfel</value>
        </array>
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</prop>
            <prop key="hibernate.show_sql">true</prop>
        </props>
    </property>
    </bean>
    
    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
    <property name="sessionFactory" ref="mySessionFactory"/>
    </bean>
    
    <bean id="persistenceExceptionTranslationPostProcessor"
      class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor"/>
    
    <tx:annotation-driven transaction-manager="transactionManager"/>
    
  4. 我定义了MultipartResolver的root-context.xml

    <bean id="filterMultipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize"   value="100000000"/>
        <property name="maxInMemorySize" value="4096"/>
    </bean>
    
  5. Java控制器

    @RequestMapping(value = "/edit/uploadVideo/{id}", method = RequestMethod.POST)
    public @ResponseBody String uploadVideo(@PathVariable long id, MultipartHttpServletRequest request, HttpServletResponse response) throws IOException {
          //.... file handling
    }
    
  6. 我该如何解决这个问题?

    编辑:

    我尝试了建议的方法,并使用Servlet实现来管理我的视频文件上传。已进行了以下调整,但仍然会导致类似的错误:

    1. 调整后的@Controller:

      @RequestMapping(value = "/edit/uploadVideo/{id}", method = RequestMethod.POST)
      public String uploadVideo(@PathVariable long id, @RequestParam("data") Part file) {
      
      //...
      }
      
    2. 根控制器已被删除,我将multipartResolver添加到servlet-context.xml

      <bean id="multipartResolver" class="org.springframework.web.multipart.support.StandardServletMultipartResolver">
      </bean>
      
    3. web.xml中的标记已通过以下Multipart-Configuration进行了扩展:

      <servlet>
          <servlet-name>appServlet</servlet-name>
          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
          <init-param>
              <param-name>contextConfigLocation</param-name>
              <param-value>classpath*:servlet-context.xml</param-value>
          </init-param>
          <load-on-startup>1</load-on-startup>
          <multipart-config>
              <location>/tmp</location>
              <max-file-size>20848820</max-file-size>
              <max-request-size>418018841</max-request-size>
              <file-size-threshold>1048576</file-size-threshold>
          </multipart-config>
      </servlet>
      
    4. 但是,我仍然遇到异常,无法上传大于1MB的blob文件:

      Could not parse multipart servlet request; nested exception is java.io.IOException: org.apache.tomcat.util.http.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. null
          org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:927)
          org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:822)
          javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
          org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
          javax.servlet.http.HttpServlet.service(HttpServlet.java:725) 
      

      我实现了一个类似的文件上传,其中只选择了一个文件,并且在使用相同配置时完全可以发送大文件。所以我认为它与Ajax POST或附加的blob文件有什么关系?!

2 个答案:

答案 0 :(得分:1)

您可以在应用程序中将其添加到活动的Servlet3.0 MultiParsing:

 @Bean
    public MultipartConfigElement multipartConfigElement() {
        MultiPartConfigFactory factory = new MultiPartConfigFactory();
        factory.setMaxFileSize("128KB");
        factory.setMaxRequestSize("128KB");
        return factory.createMultipartConfig();
    }

或以XML格式进行。

答案 1 :(得分:0)

不是你的确切问题的答案,只是我的2美分。在Spring MVC的帮助下,基本上有两种上传文件的方法:

  • 使用Jakarta Commons FileUpload,这是在servlet 3.0 API出现之前唯一的方法(除了自己实现)
  • 使用服务器的Servlet实现(仅当 servlet impl版本&gt; = 3.0时)

由于您使用的是Tomcat 8.0.9,Servet 3.0选项为available,我绝对建议您使用它,因为它不会在您的项目中引入另一个外部依赖项。此外,由于它遵循Servlet 3.0规范,这种上传机制的配置现在是java standard,如果您决定从Spring MVC迁移到另一个MVC框架,那么这很好(您的配置值将保持不变同样的。)

如果您无法弄明白IOFileUploadException,我认为您应该尝试一下。