计算机考试上传文件,Java上传文件(简单例子)

jsp页面：

附件：

ActionForm:

private FormFile file;

Action：

import org.apache.commons.fileupload.*;

import org.apache.commons.fileupload.disk.*;

import org.apache.commons.fileupload.servlet.*;

import java.io.PrintWriter;

import java.io.File;

import org.apache.struts.upload.FormFile;

import java.io.InputStream;

import java.io.OutputStream;

import java.io.FileOutputStream;

//附件

FormFile file = (FormFile) replyForm.getFile();

if (file != null && file.getFileName().trim().length() > 0) {

String fileName = file.getFileName();

byte[] b = file.getFileData();

String dir = request.getRealPath("/uploadfile"); //request.getRealPath获得web应用程序在服务器的绝对路径

OutputStream streamOut = new FileOutputStream(dir + "/" +

fileName);

streamOut.write(b, 0, b.length);