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【Java】【JSP】jsp入门-实现登陆
- login.jsp
Login - 锐客网
- resutl.jsp
Title - 锐客网
- LoginServlet
package com.stu.demo;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
@WebServlet(name = "LoginServlet")
public class LoginServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {}protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html;
charset=utf-8");
PrintWriter out = response.getWriter();
request.getRequestDispatcher("/login.jsp").forward(request, response);
}
}
- DoLoginServlet
package com.stu.demo;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
@WebServlet(name = "DoLoginServlet")
public class DoLoginServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html;
charset=utf-8");
PrintWriter out = response.getWriter();
String uid = request.getParameter("uid");
String pwd = request.getParameter("pwd");
if (uid.equals("123") && pwd.equals("321")) {
request.setAttribute("msg", "登陆成功:" + uid);
request.setAttribute("res", "1");
} else {
request.setAttribute("msg", "登陆失败");
request.setAttribute("res", "0");
}
request.getRequestDispatcher("/result.jsp").forward(request, response);
}protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.getRequestDispatcher("/login.jsp").forward(request, response);
}
}
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