package edu.whu.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 edu.whu.dbutil.UserValidate;
public class Servlet_LoginValidate extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String username=request.getParameter("username");
String password=request.getParameter("password");
boolean isLegal=UserValidate.validate(username, password);
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML Transitional//EN\">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println("<meta charset=\"utf-8\">");
out.println(" <BODY>");
if (isLegal){
out.print("欢迎你"+username);
}else {
out.print("用户名或密码错误");
}
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
} 4.01
}