regifexistuserservlet.java~20~

c++通信编程学习1

package com.j2ee.servlet.reg;
import com.j2ee.func.reg.RegExituser;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;

public class RegIfExistUserservlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }
    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        String username = request.getParameter("username");
        RegExituser regexituser=new RegExituser();
        regexituser.setusername(username);
        String report="";
        if(regexituser.isExitUser()){
            report="对不起！该用户名已存在";
        }
        else{
            report="恭喜！该用户名可用";
        }
        request.getRequestDispatcher("./regcheckuser.jsp?report="+report+"").forward(request,response);

    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy() {
    }
}