login.java~10~

Java+Web+会话+聊天室希望对兄弟们有点儿帮助

package pchat;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import pchat.*;
import java.sql.*;

public class Login extends HttpServlet {
    LoginData ld = new LoginData();
    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 {
        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        request.setCharacterEncoding("GBK");
        String name = null;
        name = request.getParameter("txtName");
        String pass = null;
        pass = request.getParameter("txtPassword");
        String rpass = null;
        rpass = request.getParameter("txtRPassword");
        if (name.equals("")) {
            response.sendRedirect("Login.html");
            return;
        }
        if (ld.Ishave(name) == true) { //判断用户名是否存在
            response.sendRedirect("error.html");
            return;
        }
        if (pass.equals("") || rpass.equals("")) {
            response.sendRedirect("Login.html");
            return;
        }
        if (!pass.equals(rpass)) {
            response.sendRedirect("Login.html");
            return;
        }
        // ld.noteData(name,pass);
        // System.out.println("来了"+name+pass);
        Connection con = SQLData.sqlData();
        Statement st = null;
        try {
            st = con.createStatement();
            st.executeUpdate("insert into Login values('" + name + "','" + pass +
                             "')");
            System.out.println("我已经注册了");
        } catch (SQLException ee) {
        } finally {
            try {
                st.close();
                con.close();
            } catch (Exception ee) {}
        }
        response.sendRedirect("Sm.html");
        out.close();
    }

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

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