src/servlet/DownLoadServlet.java

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package servlet;

import java.io.IOException;
import java.io.PrintWriter;

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

import com.jspsmart.upload.*;

public class DownLoadServlet extends HttpServlet {

	public DownLoadServlet() {
		super();
	}

	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}
	
	public void init() throws ServletException {
		// Put your code here
	}
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {
		
		doGet(request,response);
	}
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		
		try{
			
			//HttpSession session = request.getSession();
			
			if(request.getParameter("address")!=null){
				SmartUpload load = new SmartUpload();
				load.initialize(this.getServletConfig(), request,response);
				load.setContentDisposition(null);	
				String str = request.getParameter("address");
				System.out.println("str=="+str);
				load.downloadFile(str);
			}
			
		}catch(Exception ex){
			ex.printStackTrace();
			
			//PrintWriter out = response.getWriter();
			//out.println("  <script>alert(\"The File is not find !\");</script>");
			
			//out.flush();
			//out.close();