第五章 Spring MVC 文件上传

spring mvc 文件上传：

1、配置

spring-mvc.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.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd">

	<!-- 使用注解的包，包括子集 -->
    <context:component-scan base-package="com.fx"/>

    <!-- 视图解析器 -->
	<bean id="viewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp"></property>
	</bean>
	
	<!-- 文件上传 -->
	<bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		
		<property name="defaultEncoding" value="UTF-8"/>  
	    <property name="maxUploadSize" value="10000000"/>

	</bean>

</beans>

2、添加controller

FileUploadController.java

package com.fx.controller;

import java.io.File;

import javax.servlet.http.HttpServletRequest;

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

/**
 * 控制器
 * @author fx
 *
 */
@Controller
public class FileUploadController {

	/**
	 * 文件上传
	 * @param file1
	 * @param request
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/upload")
	public String uploadFile(@RequestParam("file1") MultipartFile file1,HttpServletRequest request)throws Exception{
		//获取项目路径
		String filePath=request.getServletContext().getRealPath("/");
		System.out.println(filePath);
		//保存文件
		file1.transferTo(new File(filePath+"upload/"+file1.getOriginalFilename()));
		return "redirect:success.html";
	}
	
	/**
	 * 多文件上传
	 * @param files
	 * @param request
	 * @return
	 * @throws Exception
	 */
	@RequestMapping("/upload2")
	public String uploadFiles(@RequestParam("file") MultipartFile[] files,HttpServletRequest request)throws Exception{
		//获取项目路径
		String filePath=request.getServletContext().getRealPath("/");
		System.out.println(filePath);
		//遍历文件列表
		for(MultipartFile file:files){
			//保存文件
			file.transferTo(new File(filePath+"upload/"+file.getOriginalFilename()));			
		}
		return "redirect:success.html";
	}
}

3、配置web.xml

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>SpringMvc04</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
	</welcome-file-list>

	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring-mvc.xml</param-value>
		</init-param>
	</servlet>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
</web-app>

4、添加jar

com.springsource.org.apache.commons.io-1.4.0.jar
com.springsource.org.apache.commons.fileupload-1.2.0.jar