package com.XXX.xheditor.servlet;
 



import java.io.BufferedOutputStream;
 
import java.io.File;
 
import java.io.FileOutputStream;
 
import java.io.IOException;
 
import java.io.OutputStream;
 
import java.io.PrintWriter;
 
import java.io.Serializable;
 
import java.text.SimpleDateFormat;
 
import java.util.Date;
 
import java.util.HashMap;
 
import java.util.Iterator;
 
import java.util.List;
 
import java.util.Map;
 
import java.util.UUID;
 



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



import org.apache.commons.fileupload.DiskFileUpload;
 
import org.apache.commons.fileupload.FileItem;
 
import org.apache.commons.lang.StringUtils;
 






//  xhEditor文件上传的Java - Servlet实现.
 
//  @ author WeiMiao
 
//  @ refer to easinchu
 
//  @ version 2
 
//  @ description 增加html5上传功能的支持
 



public class UploadFileServlet extends HttpServlet {
 
    private static final long serialVersionUID = 1541334866883495283L;
 
 
 
    private static String baseDir = "/UploadFile/"; // 上传文件存储目录
 
    private static String fileExt = "jpg,jpeg,bmp,gif,png";
 
    private static Long maxSize = 0l;
 
    private static String dirType = "1"; // 0:不建目录 1:按天存入目录 2:按月存入目录 3:按扩展名存目录 建议使用按天存
 



 
 
    public void init() throws ServletException {
 
        baseDir = this.getInitParameter("baseDir"); //获取web.xml中servlet的配置文件目录参数
 
        if (StringUtils.isEmpty(baseDir)) baseDir = "/UploadFile/"; //获取文件上传存储的相当路径
 



        String realBaseDir = this.getServletConfig().getServletContext().getRealPath(baseDir);
 
        File baseFile = new File(realBaseDir);
 
        if (!baseFile.exists()) {
 
            baseFile.mkdir();
 
        }
 



        fileExt = this.getInitParameter("fileExt"); //获取文件类型参数
 
        if (StringUtils.isEmpty(fileExt)) fileExt = "jpg,jpeg,gif,bmp,png";
 



        String maxSize_str = this.getInitParameter("maxSize"); //获取文件大小参数
 
        if (StringUtils.isNotEmpty(maxSize_str)) {
 
            maxSize = new Long(maxSize_str);
 
        } else {
 
            maxSize = Long.valueOf("5242880"); //5M
 
        }
 



        dirType = this.getInitParameter("dirType"); //获取文件目录类型参数
 



        if (StringUtils.isEmpty(dirType)) dirType = "1";
 
        if (",0,1,2,3,".indexOf("," + dirType + ",") < 0) dirType = "1";
 
    }
 



 
 
    // 上传文件数据处理过程
 
 
 
    @SuppressWarnings( { "unchecked" })
 
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
 
        response.setContentType("text/html; charset=UTF-8");
 
        response.setHeader("Cache-Control", "no-cache");
 



        String err = "";
 
        String newFileName = "";
 
 
 
        if ("application/octet-stream".equals(request.getContentType())) { //HTML 5 上传
 
            try {
 
                String dispoString = request.getHeader("Content-Disposition");
 
                int iFindStart = dispoString.indexOf("name=\"")+6;
 
                int iFindEnd = dispoString.indexOf("\"", iFindStart);
 
 
 
                iFindStart = dispoString.indexOf("filename=\"")+10;
 
                iFindEnd = dispoString.indexOf("\"", iFindStart);
 
                String sFileName = dispoString.substring(iFindStart, iFindEnd);
 
 
 
                int i = request.getContentLength();
 
                byte buffer[] = new byte[i];
 
                int j = 0;
 
                while(j < i) { //获取表单的上传文件
 
                    int k = request.getInputStream().read(buffer, j, i-j);
 
                    j += k;
 
                }
 
 
 
                if (buffer.length == 0) { //文件是否为空
 
                    printInfo(response, "上传文件不能为空", "");
 
                    return;
 
                }
 
                if (maxSize > 0 && buffer.length > maxSize) { //检查文件大小
 
                    printInfo(response, "上传