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利用 Spring MVC 上传多文件到指定目录 spring upload files
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利用 Spring MVC 上传多文件到指定目录 spring upload files
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本篇文章，我們會教你通過eclipse構建一個創建一個Java web項目并轉為maven工程，實現用spring mvc將所選文件上傳到指定目錄
開發環境：
1.JDK 1.7
2.Maven 3.3.9
3.Eclipse Mars.1
4.Spring 4.2.1.RELEASE
5.Spring MVC 4.2.1.RELEASE
6.Tomcat7
1.目錄結構
2. 創建項目 Eclipse - File - New - Dynamic Web Project 輸入項目名稱，然后右擊該項目Configure-Convert to Maven project 在WebContent/WEB-INF下新建一個web.xml文件 3.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>org.thinkingingis</groupId><artifactId>SpringUploadFiles</artifactId><version>0.0.1-SNAPSHOT</version><packaging>war</packaging><build><sourceDirectory>src</sourceDirectory><plugins><plugin><artifactId>maven-compiler-plugin</artifactId><version>2.3.2</version><configuration><source>1.7</source><target>1.7</target></configuration></plugin></plugins></build><dependencies><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- fileupload --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2</version></dependency><!-- io --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>1.4</version></dependency></dependencies> </project>4.ThinkFileUpload.java 這個類用來存放MultipartFile類型的對象，這是spring framework提供的一個用于接收所上傳文件內容的類。 package org.thinkingingis.form;import java.util.List;import org.springframework.web.multipart.MultipartFile;public class ThinkFileUpload {private List<MultipartFile> thinkFiles;public List<MultipartFile> getFiles() {return thinkFiles;}public void setFiles(List<MultipartFile> files) {this.thinkFiles = files;} }5.FileUploadController.java 擁有兩個方法
指定路徑下的文件：
至此，一個通過簡單的利用spring mvc 上傳多文件的小程序就完成啦。
源碼地址： https://github.com/ThinkingInGIS/SpringUploadFiles （如遇到問題，請留言給作者，以便共同探討gis知識。thinkingingis@qq.com） 微信公眾號：ThinkingInGIS
歡迎大家關注：）
1.目錄結構
2. 創建項目 Eclipse - File - New - Dynamic Web Project 輸入項目名稱，然后右擊該項目Configure-Convert to Maven project 在WebContent/WEB-INF下新建一個web.xml文件 3.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>org.thinkingingis</groupId><artifactId>SpringUploadFiles</artifactId><version>0.0.1-SNAPSHOT</version><packaging>war</packaging><build><sourceDirectory>src</sourceDirectory><plugins><plugin><artifactId>maven-compiler-plugin</artifactId><version>2.3.2</version><configuration><source>1.7</source><target>1.7</target></configuration></plugin></plugins></build><dependencies><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>4.2.1.RELEASE</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- fileupload --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.2</version></dependency><!-- io --><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>1.4</version></dependency></dependencies> </project>4.ThinkFileUpload.java 這個類用來存放MultipartFile類型的對象，這是spring framework提供的一個用于接收所上傳文件內容的類。 package org.thinkingingis.form;import java.util.List;import org.springframework.web.multipart.MultipartFile;public class ThinkFileUpload {private List<MultipartFile> thinkFiles;public List<MultipartFile> getFiles() {return thinkFiles;}public void setFiles(List<MultipartFile> files) {this.thinkFiles = files;} }5.FileUploadController.java 擁有兩個方法
thinkDisplayForm －－ 返回上傳文件的頁面
crunchifySave －－ 用于接收文件并保存文件到指定目錄，這里保存在/Users/gisboy/node/ 目錄下
package org.thinkingingis.controller;import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List;import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.multipart.MultipartFile; import org.thinkingingis.form.ThinkFileUpload;@Controller public class FileUploadController {@RequestMapping(value = "/upload", method = RequestMethod.GET)public String thinkDisplayForm(){//從 index.jsp 攔截請求，請求名稱為 : /uploadreturn "uploadfile";}@RequestMapping(value = "/savefiles", method = RequestMethod.POST)public String crunchifySave(@ModelAttribute("uploadForm") ThinkFileUpload uploadForm,Model map) throws IllegalStateException, IOException {//文件的存放路徑String saveDirectory = "/Users/gisboy/node/";List<MultipartFile> thinkFiles = uploadForm.getFiles();List<String> fileNames = new ArrayList<String>();if (null != thinkFiles && thinkFiles.size() > 0) {for (MultipartFile multipartFile : thinkFiles) {String fileName = multipartFile.getOriginalFilename();if (!"".equalsIgnoreCase(fileName)) {multipartFile.transferTo(new File(saveDirectory + fileName));fileNames.add(fileName);}}}map.addAttribute("files", fileNames);return "uploadfilesuccess";} }6.jsp文件
index.jsp
<html> <head> <title>Spring Upload Files by ThinkingInGIS</title> <style type="text/css"> body {background-image: url(./resources/bg.png); } </style> </head> <body><br><div style="text-align:center"><h2>Hey Buddy..!! This is a Spring MVC Demo<br> <br></h2><h3><a href="upload.html">Click here to Jump to file upload page... </a></h3></div> </body> </html>
uploadfile.jsp
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%> <%@ 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>上傳文件</title> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> <script>$(document).ready(function(){//add more file components if Add is clicked$('#addFile').click(function() {var fileIndex = $('#fileTable tr').children().length;console.log(fileIndex);$('#fileTable').append('<tr><td>' + '<input type="file" name="files[' + fileIndex + ']" />' + '</td></tr>');});}); </script> <style type="text/css">body {background-image:url(bg.png);} </style> </head> <body> <br><br><div align="center"><h1>ThinkingInGIS - Spring MVC Upload Multiple Files Example</h1><form:form method="post" action="savefiles.html"modelAttribute="uploadForm" enctype="multipart/form-data"><p>Select files to upload. Press Add button to add more fileinputs.</p><table id="fileTable"><tr><td><input name="files[0]" type="file" /></td></tr><tr><td><input name="files[1]" type="file" /></td></tr></table><br /><input type="submit" value="Upload" /><input id="addFile" type="button" value="Add File" /></form:form><br /></div> </body> </html>
uploadfilesuccess.jsp
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <html> <head> <title>ThinkingInGIS - Upload Multiple Files Example</title> <style type="text/css"> body {background-image:url(bg.png); } </style> </head> <body><br><br><div align="center"><h1>ThinkingInGIS - Spring MVC Upload Multiple Files Example</h1><p>Following files are uploaded successfully.</p><ol><c:forEach items="${files}" var="file">- ${file} <br></c:forEach></ol><a href="http://localhost:8080/SpringUploadFiles/index.jsp"><inputtype="button" value="Go Back" /></a> <br/><br /><br /><divstyle="font-family: verdana; line-height: 25px; padding: 5px 10px; border-radius: 10px; border: 1px dotted #A4A4A4; width: 50%; font-size: 12px;">Spring MVC Upload Multiple Files Example by <ahref='https://github.com/ThinkingInGIS/'>ThinkingInGIS</a>. Click <ahref='https://github.com/ThinkingInGIS/SpringUploadFiles'>here</a>to get source code.<br></div></div> </body> </html>
7.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" version="3.0"><display-name>SpringUploadFiles</display-name><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list><servlet><servlet-name>springuploadfiles</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>springuploadfiles</servlet-name><url-pattern>*.html</url-pattern></servlet-mapping></web-app>8.springuploadfiles-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"><context:component-scan base-package="org.thinkingingis.controller" /><bean id="multipartResolver"class="org.springframework.web.multipart.commons.CommonsMultipartResolver" /><bean id="viewResolver"class="org.springframework.web.servlet.view.UrlBasedViewResolver"><property name="viewClass"value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /></bean></beans>9.完成之后啟動項目
在瀏覽器中輸入 http://localhost:8080/SpringUploadFiles/
運行截圖如下：
指定路徑下的文件：
至此，一個通過簡單的利用spring mvc 上傳多文件的小程序就完成啦。
源碼地址： https://github.com/ThinkingInGIS/SpringUploadFiles （如遇到問題，請留言給作者，以便共同探討gis知識。thinkingingis@qq.com） 微信公眾號：ThinkingInGIS
歡迎大家關注：）
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