2019.9.2课程设计情况
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一、当天完成的任务
今天开始搭服务器,我们使用eclipse配tomcat,然后android studio来做客户端。今天先把tomcat给配置完了,然后eclipse中的tomcat遇到一些问题,出现了error,争取今天晚上解决。
服务器端的代码:Login
package com.servlet; import java.io.IOException; import java.io.PrintWriter; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import javax.servlet.ServletConfig; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class LoginTest */ @WebServlet("/LoginTest") public class Login extends HttpServlet private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public Login() super(); // TODO Auto-generated constructor stub public void init(ServletConfig config) throws ServletException // TODO Auto-generated method stub super.init(config); try Class.forName("com.mysql.jdbc.Driver"); catch (Exception e) // TODO Auto-generated catch block e.printStackTrace(); /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException // TODO Auto-generated method stub response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); Connection con; Statement sql; String logname = request.getParameter("logname").trim(); String password = request.getParameter("password").trim(); String uri = "jdbc:mysql://localhost/MakeFriend"; try con = DriverManager.getConnection(uri,"root","201513010223"); String condition = "select * from member where logname = ‘"+logname+"‘ and password = ‘"+password+"‘"; sql = con.prepareStatement(condition); ResultSet rSet = sql.executeQuery(condition); if(rSet.next()) out.println("login successfully!"); else out.println("can not login!"); con.close(); catch (SQLException e) // TODO Auto-generated catch block e.printStackTrace(); /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException // TODO Auto-generated method stub doGet(request, response);
二、第二天的计划
将tomcat和eclipse配置完成,将服务器搭建完成。
三、每日小结
1.当初J2EE学得忘得差不多了,现在搭服务器感觉很费劲。
2.感觉走进了死胡同,死在了服务器里。
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