javaee/JavaEEDZY/src/org/zhichunqi/www/ThingsUpload.java

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package org.zhichunqi.www;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.log4j.Logger;

public class ThingsUpload extends HttpServlet {
	Logger log = Logger.getLogger("org.zhichunqi.www.ThingsUpload");
	private static final long serialVersionUID = 1L;
	//上传文件存储目录
	private static final String UPLOAD_DIRECTORY = "upload";
	//上传配置
	private static final int MEMORY_THRESHOLD = 1024 * 1024 * 3;
	private static final int MAX_FILE_SIZE = 1024 * 1024 * 40;
	private static final int MAX_REQUEST_SIZE = 1024 * 1024 * 50;
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	}
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		//配置上传参数
		DiskFileItemFactory factory = new DiskFileItemFactory();
		//设置内存临界值，超过后将产生临时文件并存储于临时目录中
		factory.setSizeThreshold(MEMORY_THRESHOLD);
		//设置临时存储目录
		factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
		ServletFileUpload upload = new ServletFileUpload(factory);
		//设置最大上传值
		upload.setFileSizeMax(MAX_FILE_SIZE);
		//设置最大请求值（包含文件和表单数据)
		upload.setSizeMax(MAX_REQUEST_SIZE);
		//中文处理
		upload.setHeaderEncoding("utf-8");
		//构造临时路径来存储上传的文件，这个路径相对当前的应用的目录
		String uploadPath = "D:\\jsp\\myWorkSpace\\JavaEEDZY" + File.separator + UPLOAD_DIRECTORY;
		System.out.println(uploadPath);
		//String uploadPath = getServletContext().getRealPath("/upload") + File.separator + UPLOAD_DIRECTORY;
		//如果目录不存在就创建
		File uploadDir = new File(uploadPath);
		if (!uploadDir.exists()) {
			uploadDir.mkdir();
		}
		String choose = "";
		String wname = "";
		String wtime = "";
		String waddr = "";