landingservlet.java
来自「jiava中简单的基础的jsp增删改查适合处学者」· Java 代码 · 共 88 行
JAVA
88 行
/* * To change this template, choose Tools | Templates * and open the template in the editor. */package servlet;import java.io.*;import java.net.*;import java.sql.*;import db.DBConnetion;import javax.servlet.*;import javax.servlet.http.*;/** * * @author Administrator */public class landingServlet extends HttpServlet { /** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods. * @param request servlet request * @param response servlet response */ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { String name = request.getParameter("name"); String pwd = request.getParameter("pwd"); if(name.equals("") || pwd.equals("")){ out.println("请输入用户名或者密码!~~~~~~~"); out.println("<a href='index.jsp'>返回</a>"); }else{ db.DBConnetion conn = new DBConnetion(); String sql ="select * from UserInfo where name='"+name+"' and pwd='"+pwd+"'"; conn.selectQeary(sql); response.sendRedirect("resultShow.jsp"); } /* TODO output your page here out.println("<html>"); out.println("<head>"); out.println("<title>Servlet landingServlet</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet landingServlet at " + request.getContextPath () + "</h1>"); out.println("</body>"); out.println("</html>"); */ } finally { out.close(); } } // <editor-fold defaultstate="collapsed" desc="HttpServlet 方法。单击左侧的 + 号以编缉代码。"> /** * Handles the HTTP <code>GET</code> method. * @param request servlet request * @param response servlet response */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Handles the HTTP <code>POST</code> method. * @param request servlet request * @param response servlet response */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } /** * Returns a short description of the servlet. */ public String getServletInfo() { return "Short description"; } // </editor-fold>}⌨️ 快捷键说明
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