Struts2文件上传配置教程Demo代码下载

淩亂°似流年 2022-07-17 00:40 190阅读 0赞

原文：[Struts2文件上传配置教程Demo代码下载][Struts2_Demo]

源代码下载地址： [http://www.zuidaima.com/share/1833981853305856.htm][Struts2_Demo]

**项目截图：**

![20140522231446677.jpg][]

**pom文件：**

<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>zuidaima</groupId>
      <artifactId>Structs-FileUpLoad</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      <url>http://maven.apache.org</url>
    
    	<dependencies>
    
    		<dependency>
    			<groupId>com.sun</groupId>
    			<artifactId>tools</artifactId>
    			<version>1.5.0</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.apache.struts</groupId>
    			<artifactId>struts2-core</artifactId>
    			<version>2.3.1.2</version>
    		</dependency>
    		
    		<dependency>    
    	        <groupId>javax.servlet</groupId>    
    	        <artifactId>servlet-api</artifactId>    
    	        <version>2.5</version>    
    	        <scope>provided</scope>    
        	</dependency>
    
    	</dependencies>
      
      
    </project>

Struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
     
    <struts>
    	<constant name="struts.multipart.saveDir" value="c:/upload"></constant> 
     	<constant name="struts.action.extension" value="html" />
     	<constant name="struts.devMode" value="true" />
     	<constant name="struts.custom.i18n.resources" value="global" />
     
    	<package name="default"  extends="struts-default">
     
     		<action name="index" >
    		    <result >/WEB-INF/views/fileupload.jsp</result>
    		</action>
     
    		<action name="fileUpload"    class="com.zuidaima.fileupload.controller.FileUploadAction">
    			<param name="uploadDir">/WEB-INF/upload</param>
    		    <result name="SUCCESS">/WEB-INF/views/success.jsp</result>
    		</action>
    	 
       </package>	
    </struts>

**FileUploadAction:**

package com.zuidaima.fileupload.controller;
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileOutputStream;
    import java.io.InputStream;
    import java.io.OutputStream;
    import org.apache.struts2.ServletActionContext;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    /**
     * 
     * @author dyl
     *
     */
    public class FileUploadAction extends ActionSupport {
    
    	private static final long serialVersionUID = 1L;
    
    	private File fileUpload;
    	private String fileUploadContentType;
    	private String fileUploadFileName;
    	private String uploadDir;
    
    	public String getFileUploadContentType() {
    		return fileUploadContentType;
    	}
    
    	public void setFileUploadContentType(String fileUploadContentType) {
    		this.fileUploadContentType = fileUploadContentType;
    	}
    
    	public String getFileUploadFileName() {
    		return fileUploadFileName;
    	}
    
    	public void setFileUploadFileName(String fileUploadFileName) {
    		this.fileUploadFileName = fileUploadFileName;
    	}
    
    	public File getFileUpload() {
    		return fileUpload;
    	}
    
    	public void setFileUpload(File file) {
    		this.fileUpload = file;
    	}
    
    	public String getUploadDir() {
    		return uploadDir;
    	}
    
    	public void setUploadDir(String uploadDir) {
    		this.uploadDir = uploadDir;
    	}
    
    	public String execute() throws Exception {
    		String newFileName = null;
    		long now = System.currentTimeMillis();
    		// 得到保存上传文件的目录的真实路径
    		File dir = new File(ServletActionContext.getServletContext()
    				.getRealPath(uploadDir));
    		// 如果该目录不存在，就创建
    		if (!dir.exists()) {
    			dir.mkdirs();
    		}
    
    		// 为避免重名文件覆盖，判断上传文件是否有扩展名，以时间戳作为新的文件名
    		int index = fileUpload.getName().lastIndexOf(".");
    
    		if (index != -1) {
    			newFileName = now + fileUpload.getName().substring(0,index);
    		} else {
    			newFileName = Long.toString(now);
    		}
    
    		InputStream is = null;
    		OutputStream os = null;
    		try {
    			// 读取保存在临时目录下的上传文件，写入到新的文件中
    			is = new FileInputStream(fileUpload);
    			os = new FileOutputStream(new File(dir, newFileName));
    
    			byte[] buf = new byte[1024];
    
    			int len = -1;
    
    			while ((len = is.read(buf)) != -1) {
    				os.write(buf, 0, len);
    			}
    			//删除临时文件
    			fileUpload.delete();
    		} finally {
    			is.close();
    			os.close();
    		}
    		return "SUCCESS";
    	}
    
    	public String display() {
    		return "NONE";
    	}
    }

**项目运行截图：**

![20140522231814703.jpg][]

**上传后的文件：**![20140522231844157.jpg][]

![20140522232406387.jpg][]

[Struts2_Demo]: http://www.zuidaima.com/share/1833981853305856.htm
[20140522231446677.jpg]: /images/20220717/83daca101bdb40b792f3e6ba4dae6355.png
[20140522231814703.jpg]: http://static.zuidaima.com/images/17521/201405/20140522231814703.jpg
[20140522231844157.jpg]: http://static.zuidaima.com/images/17521/201405/20140522231844157.jpg
[20140522232406387.jpg]: http://static.zuidaima.com/images/17521/201405/20140522232406387.jpg