struts2实现文件上传

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struts2是通过调用上传框架来实现文件上传的

jsp代码：

<%@ page language="java" import="java.util.*" pageEncoding="gb2312"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'upload.jsp' starting page</title>    <meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->  </head>    <body>    <center>    <h1>文件上传</h1>    <form action="upload.action" method="post" enctype="multipart/form-data">    <table>    <tr>    <td>用户名:</td>    <td><input type="text" name="username"></td>    </tr>    <tr>    <td>上传文件：</td>    <td><input type="file" name="myFile"></td>    </tr>    <tr>    <td><input type="submit" value="上传"></td>    <td><input type="reset"></td>    </tr>    </table>        </form>            </center>      </body></html>

uploadaction.java

package net.hncu.struts2.action;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;public class UploadAction extends ActionSupport{//用来封装用户名private String username;//myfile属性用来封装上传的文件private File myFile;//myFileContentType属性用来封装上传文件的类型private String myFileContentType;//myFileName属性用来封装上传文件的文件名private String myFileFileName;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public File getMyFile() {return myFile;}public void setMyFile(File myFile) {this.myFile = myFile;}public String getMyFileContentType() {return myFileContentType;}public void setMyFileContentType(String myFileContentType) {this.myFileContentType = myFileContentType;}public String getMyFileFileName() {return myFileFileName;}public void setMyFileFileName(String myFileName) {this.myFileFileName = myFileName;}public String execute()throws Exception{//基于myFile创建一个文件输入流InputStream is =new FileInputStream(myFile);//设置上传目录String uploadPath=ServletActionContext.getServletContext().getRealPath("/upload");//设置目标文件File toFile=new File(uploadPath,this.getMyFileFileName());//创建一个输出流OutputStream os=new FileOutputStream(toFile);//设置缓存byte[]buffer=new byte[1024];int length=0;//读取myFile文件输出到toFile文件中while((length=is.read(buffer))>0){os.write(buffer,0,length);}//关闭输入流is.close();//关闭输出流os.close();return SUCCESS;}}

还有更多的高级功能后续推出！！！