📄 loginservlet.java

📁 java语言编写的程序

💻 JAVA

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package cn.lab.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import cn.lab.business.Admin_Manager;

public class LoginServlet extends HttpServlet {
	public void doGet(HttpServletRequest request,HttpServletResponse response)
		throws ServletException,IOException{
		response.setContentType("text/html;charset=gb2312");
	
	
	PrintWriter out = response.getWriter();
	out.println("<html>");
	out.println("<head><title>非法</title></head>");
	out.println("<body bgcolor=\"#ffffff\">");
	out.println("<p>服务器忙，请稍后再来！</p>");
	out.println("</body></html>");
	}
	
	
	public void doPost(
		HttpServletRequest request,HttpServletResponse response)
		throws ServletException,IOException{
			HttpSession ses = request.getSession();
			
			String username = (String)request.getParameter("username");
			String password = (String)request.getParameter("password");
			
			boolean tag = Admin_Manager.CheckAdmin(username,password);
			if(tag)
			{
				ses.setAttribute("username",username);
				RequestDispatcher requestDispatcher = 
					request.getRequestDispatcher("guanli/login/success.jsp");
				requestDispatcher.forward(request,response);
			}
			else{
				ses.setAttribute("error", "error");
				RequestDispatcher requestDispatcher = request.getRequestDispatcher("guanli/" +
						"login/failure.jsp");
				requestDispatcher.forward(request,response);
			}
	}
}

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