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   源码介绍

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实现学习信息管理，查看课程与学校个人信息

package cn.fjnu.edu.servlet;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cn.fjnu.edu.factory.DaoFactory;
import cn.fjnu.edu.model.Student;


@SuppressWarnings("serial")
public class LoginServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String path1="list.jsp";
String path2="Login.jsp";
String userid=request.getParameter("userid");
String userpass=request.getParameter("userpass");
List<String>info=new ArrayList<String>();
if(userid==null||"".equals(userid)){
info.add("用户id不能为空");
}
if(userpass==null||"".equals(userpass)){
info.add("密码不能为空");

}
if(info.size()==0){
Student student=new Student();
student.setId(userid);
student.setPhone(userpass);
try{
if(DaoFactory.getIUserDAoInstance().findLogin(student)){
info.add("登录成功，欢迎  " student.getName() "  光临");
request.setAttribute("info", info);
request.getRequestDispatcher(path1).forward(request, response);
}
else{
info.add("登录失败，用户名或密码错误");
request.setAttribute("info", info);
request.getRequestDispatcher(path2).forward(request, response);
}
}catch (Exception e) {
e.printStackTrace();

}
}

}

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