SpringMVC使用CommonsMultipartResolver实现文件上传

引入2个包：

	<!-- 处理文件上传CommonsFileUpload和Commons io -->
		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3.1</version>
		</dependency>
		<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.5</version>
		</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:mvc="http://www.springframework.org/schema/mvc" 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"
	xmlns:util="http://www.springframework.org/schema/util"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-4.1.xsd 
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-4.1.xsd 
		http://www.springframework.org/schema/mvc 
		http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
		http://www.springframework.org/schema/util
		http://www.springframework.org/schema/util/spring-util-4.0.xsd">
	
	<!-- 扫描的包 -->
	<context:component-scan base-package="com.smart.web"/>
	
	
	<!-- HandlerMapping和HandlerAdapter及数据转换器配置 -->	
    <mvc:annotation-driven conversion-service="conversionService">
    	<mvc:message-converters register-defaults="true">
    		<bean class="org.springframework.http.converter.BufferedImageHttpMessageConverter"/>
       		<bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"/>
            <bean class="org.springframework.http.converter.StringHttpMessageConverter" />
            <bean class="org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter"/>
            <bean class="org.springframework.http.converter.xml.MarshallingHttpMessageConverter"
                p:marshaller-ref="xmlMarshaller" p:unmarshaller-ref="xmlMarshaller">
            </bean>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
    	</mvc:message-converters>
    </mvc:annotation-driven>
    <!-- 数据转换器 -->
	<bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean">
		<property name="converters">
			<list>
				<bean class="com.smart.domain.StringToUserConvert" />
			</list>
		</property>
	</bean>      
	 <!-- xml消息转换器 -->         
    <bean id="xmlMarshaller" class="org.springframework.oxm.xstream.XStreamMarshaller">
        <property name="streamDriver">
            <bean class="com.thoughtworks.xstream.io.xml.StaxDriver"/>
        </property>
        <property name="annotatedClasses">
            <list>
                <value>com.smart.domain.User</value>
            </list>
        </property>
    </bean>   
           
    
	<!-- 在使用Excel/PDF/XML的视图时，请先把这个视图解析器注释掉，否则产生视图解析问题-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:order="100" p:viewClass="org.springframework.web.servlet.view.JstlView"
          p:prefix="/WEB-INF/views/" p:suffix=".jsp"/>
	
	<!-- FreeMarker基础设施及视图解析器配置 -->
	<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"
		 p:templateLoaderPath="/WEB-INF/ftl" 
		 p:defaultEncoding="UTF-8">
		 <property name="freemarkerSettings">
            <props>
                <prop key="classic_compatible">true</prop>
            </props>
        </property>
	</bean>
  	<bean  class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"
            p:order="5" p:suffix=".ftl1" p:contentType="text/html; charset=utf-8"/>
            
	 <!-- Excel及PDF视图解析器配置 -->
    <bean class="org.springframework.web.servlet.view.BeanNameViewResolver"
          p:order="10"/>
    <bean id="userListExcel" class="com.smart.web.UserListExcelView"/>  
    <bean id="userListPdf" class="com.smart.web.UserListPdfView"/>      
    
    <!-- XMl及JSON视图解析器配置 -->
    <bean id="userListXml"
          class="org.springframework.web.servlet.view.xml.MarshallingView"
          p:modelKey="userList" p:marshaller-ref="xmlMarshaller"/>    
	<bean id="userListJson"
          class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"
          p:modelKeys="userList"/>  
          
     
    <!-- 协商多种视图解析器 -->
    <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver" p:order="0">
        <property name="contentNegotiationManager" ref="contentNegotiationManager"/>
        <property name="defaultViews">
            <list>
                <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView"
                      p:modelKeys="userList"/>
                <bean class="org.springframework.web.servlet.view.xml.MarshallingView"
                      p:modelKey="userList" p:marshaller-ref="xmlMarshaller"/>
            </list>
        </property>
    </bean>
    
    <!-- p:defaultContentType="text/html" 会让上面的视图解析器失效，可以去掉 -->
    <bean id="contentNegotiationManager"
          class="org.springframework.web.accept.ContentNegotiationManagerFactoryBean"
          p:ignoreAcceptHeader="true"
          p:favorPathExtension="true"   
          p:favorParameter="true"       
          p:parameterName="format"
         >
        <property name="mediaTypes">
            <value>
                html=text/html
                xml=application/xml
                json=application/json
            </value>
        </property>
    </bean>
    
     <!-- 文件上传 -->
     <!--p:defaultEncoding请求编码，需与jsp编码一致；上传大小限制 默认为1字节Byte ,p:uploadTempDir上传文件时，文件临时存储的目录，传完自动删除，不存在该目录会自动创建，不指定会使用默认 -->
    <bean id="multipartResolver"
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
          p:defaultEncoding="UTF-8"
          p:maxUploadSize="5000000"
         
          />
</beans>

package com.smart.web;

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.springframework.http.HttpEntity;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
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.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import com.smart.domain.User;

@Controller
@RequestMapping("/sp6")
public class Sp6Controller {
	@RequestMapping(value="m1",method=RequestMethod.GET)
	@ResponseBody
	public String m1(){
		return "inm1";
	}
	
	@RequestMapping(value = "/m2",method=RequestMethod.POST)
	public ResponseEntity<User> m2(HttpEntity<User> requestEntity) throws UnsupportedEncodingException {
		User user = requestEntity.getBody();
		System.out.println("######:"+user+"---"+user.getRealName());
		user.setUserId("1000");
		return new ResponseEntity<User>(user, HttpStatus.OK);
	}
	
	@RequestMapping(value="/m3",method=RequestMethod.GET)
	public String m3(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		list.add(user1);
		mm.addAttribute("list", list);
		return "suc";
	}
	
	@RequestMapping(value="/m4" ,method=RequestMethod.GET)
	public String m4(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		list.add(user1);
		mm.addAttribute("userList", list);
		return "userFtl";
	}
	
	@RequestMapping(value="/m5" ,method=RequestMethod.GET)
	public String m5(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		user.setRealName("张三");
		user.setBirthday(new Date());
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		user1.setRealName("张三");
		user1.setBirthday(new Date());
		list.add(user1);
		mm.addAttribute("userList", list);
		return "userListExcel";
	}
	
	@RequestMapping(value="/m6" ,method=RequestMethod.GET)
	public String m6(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		user.setRealName("张三");
		user.setBirthday(new Date());
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		user1.setRealName("张三");
		user1.setBirthday(new Date());
		list.add(user1);
		mm.addAttribute("userList", list);
		return "userListPdf";
	}
	
	@RequestMapping(value="/m7" ,method=RequestMethod.GET)
	public String m7(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		user.setRealName("张三");
		user.setBirthday(new Date());
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		user1.setRealName("张三");
		user1.setBirthday(new Date());
		list.add(user1);
		mm.addAttribute("userList", list);
		return "userListXml";
	}
	
	@RequestMapping(value="/m8" ,method=RequestMethod.GET)
	public String m8(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		user.setRealName("张三");
		user.setBirthday(new Date());
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		user1.setRealName("张三");
		user1.setBirthday(new Date());
		list.add(user1);
		mm.addAttribute("userList", list);
		return "userListJson";
	}
	
	@RequestMapping(value="/m9" ,method=RequestMethod.GET)
	public String m9(ModelMap mm){
		List<User> list = new ArrayList<User>();
		User user = new User();
		user.setUserId("1");
		user.setUserName("zhangsan");
		user.setRealName("张三");
		user.setBirthday(new Date());
		list.add(user);
		User user1 = new User();
		user1.setUserId("2");
		user1.setUserName("lisi");
		user1.setRealName("张三");
		user1.setBirthday(new Date());
		list.add(user1);
		mm.addAttribute("userList", list);
		return "userListMax";
	}
	
	@RequestMapping(value="/m10",method=RequestMethod.POST)
	public String m10(@RequestParam("name") String name,@RequestParam("file") MultipartFile file) throws IllegalStateException, IOException{
		if(!file.isEmpty()){
			file.transferTo(new File("d:/temp/"+file.getOriginalFilename()));
			return "suc";
		}
		return "err";
	}
	
}

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>文件上传</title>
</head>
<body>
<form action="sp6/m10" method="post" enctype="multipart/form-data">
	<input type="text" name="name">
	<input type="file" name="file">
	<input type="submit">
</form>
</body>
</html>

jsp 需要设置 multipart/form-data 。

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