fileupload.java

实现了基本的oa功能：个人日志。。。

package oa.dailywork.fileudload;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Hashtable;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.upload.FormFile;


public class FileUpLoad {

	public boolean fileUpLoad(FormFile file,HttpServletRequest request,HttpServletResponse response) {
    /** request对象 */
//		String filename = request.getParameter("filename");
//		FormFile file = (FormFile) uploadForm.get("filepath");
//		System.out.print(file);
	
		String filepath = request.getRealPath("/uploadfile");
//		System.out.println("filename"+".................");
//		System.out.print(filename+".................");
//		System.out.println("filepath"+".................");
//		System.out.print(filepath+".................");
		int fileMaxSize = 3 * 1024 * 1024;
		int filesize=file.getFileSize();
		
		if(filesize>fileMaxSize)
		{
			try {
				response.setContentType("text/html;charset=utf-8");
				PrintWriter out = response.getWriter();
				out.print("<script>alert('您上传的文件太大,谢谢');window.open('html/accept/acceptdraft.jsp','_self'); </script>");
				return false;
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		try {
			try {
				String a=filepath+"\\"+ file.getFileName();
				InputStream stream = file.getInputStream();
				OutputStream os = new FileOutputStream(a);
				
				int bytesRead = 0;
				byte[] buffer = new byte[64];
				System.out.print(""+".................");
				while ((bytesRead = stream.read(buffer, 0, 64)) != -1) {
					os.write(buffer, 0, bytesRead);
				}
				os.close();
				stream.close();
				
				try {
					response.setContentType("text/html;charset=utf-8");
					PrintWriter out = response.getWriter();
					out.print("<script>alert('文章上传成功,请点击确定');window.open('html/accept/acceptdraft.jsp','_self'); </script>");
				 
				} catch (Exception e) {
				}
	
			} catch (FileNotFoundException e) {
				e.printStackTrace();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return true;
	}
}