📄 wordserver.java

📁 以前做的一个j2ee的项目
💻 JAVA
字号:
package gov.gdlt.ssgly.taxcore.taxblh.gzda.service;

import java.util.Enumeration;
import javax.servlet.*;
import javax.servlet.http.*;

import java.io.*;
import java.util.*;
import com.oreilly.servlet.multipart.*;
import gov.gdlt.ssgly.taxcore.taxblh.gzda.service.xmlinterface.*;
import gov.gdlt.ssgly.taxcore.taxblh.gzda.service.xmlinterface.impl.*;

public class WordServer extends HttpServlet{
    private static String FileSystem_Path="";
    private static int FileSystem_Maxsize=2097152;
    private ResourceBundle bundle = null;
    private SqlSelectBLH sblh=null;
    private TreeMenuBLH tblh=null;

    public void init() throws ServletException {
    /**
       Properties p=null;
       try {
           String path="properties/Filesystem.properties";

           try {
                p= Resources.getResourceAsProperties(path);
           } catch (IOException ex) {
           }
          // bundle = ResourceBundle.getBundle("Filesystem");
           FileSystem_Path= p.getProperty("filesystem.path");
           FileSystem_Maxsize = Integer.parseInt(p.getProperty("filesystem.maxsize"));
       } catch (MissingResourceException me)
       {
           throw new ServletException("找不到系统初始化配置文件或配置文件不正确!");
       }
    **/
   }

    public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
        String filename = "";
        if (request.getParameter("caseno") != null){
            filename=request.getParameter("caseno");
        }
        filename=filename.substring(0,filename.indexOf("?"));


            HttpSession session =request.getSession();
            //session.setAttribute("caseno",filename);
            String test=(String)session.getAttribute("caseno");
            //System.out.println("----------------"+test);
        //File OpenFile=new File(FileSystem_Path + filename);
        OracleBlobParseBLH ob=new OracleBlobParseBLH();
        InputStream Open_FileStream = ob.getblob(filename);
        //if (OpenFile.exists()) {
        if(Open_FileStream!=null){

            //InputStream Open_FileStream = new FileInputStream(OpenFile);

            if (Open_FileStream.available()<FileSystem_Maxsize)             {
                response.setContentType("msword/application");
                response.setHeader("Content-disposition","attachment; filename="+filename);
                BufferedInputStream Buffer_IStream = null;
                BufferedOutputStream Buffer_OStream = null;
                try {
                    Buffer_IStream = new BufferedInputStream(Open_FileStream);
                    Buffer_OStream = new BufferedOutputStream(response.getOutputStream());
                    byte[] buff = new byte[2048];
                    int bytesRead;
                    while((bytesRead = Buffer_IStream.read(buff, 0, buff.length))!=-1)
                    {
                        Buffer_OStream.write(buff,0,bytesRead);
                    }
                } catch(final IOException e)
                {
                    System.out.println ( "出现IOException." + e );
                }
                finally
                {
                    if (Buffer_IStream != null)  Buffer_IStream.close();
                    if (Buffer_OStream != null)  Buffer_OStream.close();
                }
            } //if size
            else
            {
                PrintWriter out = response.getWriter();
                out.println("<html>"); out.println("<body>");  out.println("<head>");
                out.println("<title>打开文档错误</title>");
                out.println("</head>"); out.println("<body>");
                out.println("文档太大,系统不允许下载,为了效率限制文档在2M以内");
                out.println("</body>");
            }
        }//if File.exists
        else
        {
            PrintWriter out = response.getWriter();
            out.println("<html>"); out.println("<body>");  out.println("<head>");
            out.println("<title>打开文档错误</title>");
            out.println("</head>"); out.println("<body>");
            out.println("文档不存在,请重新下载");
            out.println("</body>");
        }
    }
//save
   public void doPost(HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException
   {
       //File dir = new File(FileSystem_Path);
       PrintWriter out = response.getWriter();
       response.setContentType("text/plain");
       out.println("Demo Upload Servlet using MultipartParser");
       out.println();

       try {
           MultipartParser mp = new MultipartParser(request, FileSystem_Maxsize);
           Part part;
           while ((part = mp.readNextPart()) != null) {
               String name = part.getName();
               if (part.isParam()) {
                   ParamPart paramPart = (ParamPart) part;
                   String value = paramPart.getStringValue();
                   out.println("param: name=" + name + "; value=" + value);
               }
               else
               if (part.isFile()) {
                   FilePart filePart = (FilePart) part;

                   String fileName = filePart.getFileName();
                   //System.out.println("&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&="+fileName);
                   InputStream stream=filePart.getInputStream();
                   if(delblob(fileName)==1){

                   }else{
                     return;
                   }
                   OracleBlobParseBLH ob=new OracleBlobParseBLH();
                   ob.saveblob(fileName,stream);

                   //if (fileName != null) {
                   //    long size = filePart.writeTo(dir);
                   //    out.println("file: name=" + name + "; fileName=" + fileName + ", filePath=" +
                   //    filePart.getFilePath() + ", contentType=" + filePart.getContentType() + ", size=" + size);
                   //}
                   //else {
                   //    out.println("file: name=" + name + "; EMPTY");
                   //}
                   out.flush();
               }//if
          }//while
      }
      catch (IOException lEx) {
          System.out.println(lEx.toString());
           //this.getServletContext().log(lEx, "error reading or saving file");
      }
   }

   public int delblob(String url){
               String xml="<?xml version='1.0' encoding='GBK'?>"+
       "<root>"+
       "<action>"+
       "<delete tablename='T_GZDA_FILEMANAGERDETAIL' label='deletefiledetail'>"+
       "<rows>"+
         "<url>"+url+"</url>"+
        "</rows>"+
        "</delete>"+
        "</action>"+
     "</root>";
               GZDAcurrencySaveBLH save=new GZDAcurrencySaveBLH();
               int rt=0;
               rt=save.save(xml);
       return rt;

   }
   public void destroy() {

       }

}
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