springmvc多图片上传实例

最新推荐文章于 2019-02-27 21:05:25 发布

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最新推荐文章于 2019-02-27 21:05:25 发布

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本文介绍了一个使用SpringMVC实现的文件上传示例，包括web.xml配置、springmvc-mvc.xml配置文件、上传页面index.jsp及上传处理控制器FileUploadController。示例覆盖了单文件和多文件上传的场景。

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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_3_0.xsd"
	id="WebApp_ID" version="3.0">
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>UTF-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>

	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<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:springmvc-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
</web-app>

springmvc配置文件springmvc-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"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	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
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd">
	
	<bean id="jspViewResolver"
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass"
			value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/" />
		<property name="suffix" value=".jsp" />
	</bean>
	<!-- 静态资源访问 -->  

    
	<bean id="stringConverter"
		class="org.springframework.http.converter.StringHttpMessageConverter">
		<property name="supportedMediaTypes">
			<list>
				<value>text/plain;charset=UTF-8</value>
			</list>
		</property>
	</bean>
	<bean id="jsonConverter"
		class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>

	<bean
		class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
		<property name="messageConverters">
			<list>
				<ref bean="stringConverter" />
				<ref bean="jsonConverter" />
			</list>
		</property>
	</bean>
	<!-- 文件上传 -->
	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">  
        <property name="defaultEncoding" value="utf-8"></property>   
        <property name="maxUploadSize" value="10485760000"></property>  
        <property name="maxInMemorySize" value="40960"></property>  
   </bean>  
	<context:component-scan base-package="com.ihefe.controller" />
</beans>

上传页面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>Insert title here</title>
<script src="js/jquery-1.10.2.min.js"></script>
</head>
<body>
	<form name="userForm1" action="upload.do" enctype="multipart/form-data" method="post">
		<div id="newUpload1">
			<input type="file" name="file">
		</div>
		<input type="submit" value="上传">
	</form>
	<hr />
	<form name="userForm2" action="upload_more.do" enctype="multipart/form-data" method="post">
		<div id="newUpload1">
			<input type="file" name="file"> <input type="file" name="file">
		</div>
		<input type="submit" value="上传多文件">
	</form>
	
</body>
</html>

上传文件处理FileUploadController.java

package com.ihefe.controller;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Date;

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.commons.CommonsMultipartFile;

@Controller
public class FileUploadController {
	@RequestMapping("/upload")
	public String fileupload(@RequestParam("file") CommonsMultipartFile file, HttpServletRequest req) throws IOException {
		// 上传路径
		String path = req.getRealPath("/upload");
		// 获取输出流
		OutputStream os = new FileOutputStream(new File(path, new Date().getTime()+file.getOriginalFilename()));
		// 获取 输入流
		InputStream is = file.getInputStream();
		
		//以字节方式写文件 
		int len = 0;
		byte[] buffer = new byte[400];
		while ((len = is.read(buffer)) != -1) {
			os.write(buffer, 0, len);
		}
		os.close();
		is.close();
		return "success";

	}

	@RequestMapping("/upload_more")
	public String fileuploadMore(@RequestParam("file") CommonsMultipartFile[] file, HttpServletRequest req) throws IOException {
		String path = req.getRealPath("/upload");
		for (int i = 0; i < file.length; i++) {
			// 获取输出流
			OutputStream os = new FileOutputStream(new File(path, file[i].getOriginalFilename()));
			// 获取 输入流
			InputStream is = file[i].getInputStream();
			int len = 0;
			byte[] buffer = new byte[400];
			while ((len = is.read(buffer)) != -1) {
				os.write(buffer, 0, len);
			}
			os.close();
			is.close();
		}
		return "success";

	}
}

用到的jar包: