Struts2文件上传
Action：
package com.fgh.action;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import com.opensymphony.xwork2.ActionSupport;/** * Action中一定要使用post方式 struts2标签默认是post方式 * 一定要指定enctype="multipart/form-data" * @author ghfeng * */public class UploadAction extends ActionSupport { private File file; // 对应真正上传的文件 和表单中name相同 private String fileFileName;// 表单中name加上FileName 固定写法 否则上传不成功 文件名不能识别 public File getFile() { return file; } public void setFile(File file) { this.file = file; } public String getFileFileName() { return fileFileName; } public void setFileFileName(String fileFileName) { this.fileFileName = fileFileName; } @Override public String execute() throws Exception { System.out.println("execute invoked!"); //以下全是IO操作 和struts2无关 //得到文件输入流 InputStream is = new FileInputStream(file); //将文件转换为输出流 OutputStream os = new FileOutputStream("E:\" + fileFileName); byte[] buffer = new byte[1024]; int length = 0; while (-1 != (length = is.read(buffer))) { os.write(buffer, 0, length); } System.out.println("done..."); os.close(); is.close(); return SUCCESS; }}jsp：
<body><s:form action="upload" method="post" theme="simple" enctype="multipart/form-data"><s:file name="file"></s:file><br><s:submit></s:submit></s:form></body>
