使用Spring CommonsMultipartResolver 上传文件

转载自 ： 兰馨岚雨  http://yanglei008.iteye.com/blog/246920

使用spring的multipartResolver来上传文件，设置resolveLazily=true，maxUploadSize=3145728，使用那个注解的方式@ExceptionHandler(Exception.class)来捕捉MaxUploadSizeExceededException异常

可以在controller(spring mvc)  或者 action (struts mvc)
中直接使用CommonsMultipartResolver  

 ...Controller...{

 //创建一个通用的多部分解析器.
    CommonsMultipartResolver commonsMultipartResolver = new
 CommonsMultipartResolver(request.getSession().getServletContext());
 //设置编码
    commonsMultipartResolver.setDefaultEncoding(”utf-8″);
  //判断 request 是否有文件上传,即多部分请求...
  if (commonsMultipartResolver.isMultipart(request))
    {
       //转换成多部分request
       MultipartHttpServletRequest multipartRequest =
     commonsMultipartResolver.resolveMultipart(request);

    // file 是指 文件上传标签的 name=值
     // 根据 name 获取上传的文件...
     MultipartFile file = multipartRequest.getFile("file");

     //上传后记录的文件...
     File imageFile = new File("fileName");
     //上传...
     file.transferTo(imageFile);

     }
   }

也可以在spring配置文件中配置 

 也可以在Spring的配置文件中添加
 Xml代码
 <bean id=”multipartResolver” class=”org.springframework.web.multipart.commons.CommonsMultipartResolver”>
 <property name=”defaultEncoding” value=”UTF-8″ />
 </bean>

jsp code 

 <form id=”fileUploadForm” method=”post” action=”XXX.do?method=fileUpload” enctype=”multipart/form-data”>
 <tr>
 <td>File:</td>
 <td><input type=”file” name=”file”></td>
 </tr>
 <tr>
 <td><input type=”hidden” name=”fileOwner” value=”1002″/></td>
 <td><input type=”submit” value=”submit”></td>
 </tr>
 </form>

 

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另外一篇，也是关于Spring MVC上传文件的，也放到这里吧

转载自： http://mn960mn.blog.163.com/blog/static/11410308420109493440818/

spring mvc 上传文件（注解）  

2010-10-04 09:34:40|  分类： spring |  标签：上传文件  spring  mvc   |字号大中小 订阅

package net.hqit.action;

import java.io.File;
import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.util.FileCopyUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;

@Controller
public class FileUploadController {

    @RequestMapping(value="/upload.do",method=RequestMethod.POST)
    public String upload(@RequestParam("imageFile") MultipartFile image,HttpServletRequest request) throws IOException
    {
        String path = request.getRealPath("/upload");
        request.setAttribute("name",image.getOriginalFilename());
        request.setAttribute("img","<img src='http://mn960mn.blog.163.com/blog/upload/"+image.getOriginalFilename()+"'></img>");
        FileCopyUtils.copy(image.getBytes(),new File(path+"/"+image.getOriginalFilename())); 
        return "ok";
    }
}


spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"  
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xmlns:p="http://www.springframework.org/schema/p"  
        xmlns:context="http://www.springframework.org/schema/context"  
        xsi:schemaLocation="http://www.springframework.org/schema/beans   
           http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
           http://www.springframework.org/schema/context   
           http://www.springframework.org/schema/context/spring-context-3.0.xsd"> 

     <context:component-scan base-package="net.hqit.action"/>
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
         <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>    
         <property name="prefix" value="/WEB-INF/view/"/>   
         <property name="suffix" value=".jsp"/>             
     </bean>  
        
    <bean id="multipartResolver"  
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver"  
          p:defaultEncoding="utf-8" />  

</beans>

别忘了加入commons里的fileupload跟io两个ＪＡＲ包，这样就可以了。