在jsp中使用servlet

來源:互聯網
上載者:User

package com.rmol.share;

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;

public class Login extends HttpServlet {

 public void doGet(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  String name = request.getParameter("name");
  String password = request.getParameter("password");
  if (!name.equals("admin")) {
   request.getRequestDispatcher("Wrong.jsp?type=nameerr").forward(
     request, response);
  } else {
   if (!password.equals("password")) {
    request.getRequestDispatcher("Wrong.jsp?type=passworderr")
      .forward(request, response);

   } else {
    request.getRequestDispatcher("index.jsp").forward(request,
      response);

   }
  }
 }

 public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
  doGet(request, response);

 }

}

在xml中配置:
 <servlet>
  <servlet-name>Login</servlet-name>
  <servlet-class>com.rmol.share.Login</servlet-class>
 </servlet>
 <servlet-mapping>
  <servlet-name>Login</servlet-name>
  <url-pattern>/Login</url-pattern>
 </servlet-mapping>

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