1创建maven项目
2添加tomcat依赖
3在d盘根目录创建upload文件夹
4完成下面的代码，在浏览器输入网址如下
http://localhost/spring-upload/
实际页面
maven项目结构
/spring-upload/pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.gq</groupId>
<artifactId>spring-upload</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<dependencies>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.3</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.9.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
/spring-upload/src/main/webapp/index.jsp
<%@ 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>文件上传页</title>
</head>
<body>
<h1>文件上传</h1>
<h1>${msg}</h1>
<form action="doUpload.do" method="post" enctype="multipart/form-data">
<input type="file" name="upfile" />
<br />
<input type="submit" value="upload">
</form>
</body>
</html>
/spring-upload/src/main/webapp/WEB-INF/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"
version="2.5">
<display-name>spring-upload</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!--配置SpringMVC前端控制器 -->
<!--注册前端控制器 -->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--初始化参数读取配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-configs.xml</param-value>
</init-param>
<!--配置servlet在服务启动时加载(数字越小，优先级越高) 配置如下选项以后，tomcat启动时会初始化这个servlet 这个servlet在初始化时会读取contextConfigLocation参数对应的配置文件。 -->
<load-on-startup>1</load-on-startup>
</servlet>
<!--配置前端控制器 -->
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
/spring-upload/src/main/resources/spring-configs.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:util="http://www.springframework.org/schema/util" xmlns:jpa="http://www.springframework.org/schema/data/jpa"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-4.3.xsd
http://www.springframework.org/schema/data/jpa
http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<context:component-scan base-package="upload"/>
<mvc:annotation-driven />
<!--配置springMVC视图解析器(负责视图解析操作) -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--前缀 -->
<property name="Prefix" value="/"></property>
<property name="Suffix" value=".jsp"></property>
</bean>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 配置文件编码处理 -->
<property name="defaultEncoding" value="utf-8"/>
<!-- 配置文件大小限制 -->
<property name="maxUploadSize" value="4096000000"/>
<!-- 配置内存缓冲区大小 -->
<property name="maxInMemorySize" value="1024000"/>
</bean>
</beans>
/spring-upload/src/main/java/upload/UploadController.java
package upload;
import java.io.File;
import java.io.IOException;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;
@RequestMapping("/")
@Controller
public class UploadController {
@RequestMapping("uploadUI")
public String uploadUI(){
return "upload";
}
@RequestMapping("doUpload")
public ModelAndView doUpload(MultipartFile upfile)
throws IOException{
//获取文件名以及文件大小，检测是否获得文件相关数据
String fileName=upfile.getOriginalFilename();
long size=upfile.getSize();
System.out.println(fileName+"/"+size);
//构建文件目标对象，这个对象对应的文件路径必须是存在的或者通过file对象自己创建
File dest=new File("D:/upload/"+fileName);
//transferto实现文件上传
upfile.transferTo(dest);
//封装数据返回
ModelAndView mv=new ModelAndView("index");
mv.addObject("msg", "upload ok");
return mv;
}
}
