master
parent
281ab6a65c
commit
0c3c7ac7ce
@ -0,0 +1,112 @@
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package org.use.dao;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import org.use.entity.Use;
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public class UseDao {
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private final String URL="jdbc:mysql://localhost:3306/test";
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private final String USERNAME ="root" ;
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private final String PASSWORD ="123456" ;
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public boolean isExist(String username) {
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return queryUseByusername(username)==null? false:true ;
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}
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public boolean addUse(Use use) {
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Connection connection = null;
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PreparedStatement pstmt = null;
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ResultSet rs= null;
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try {
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Class.forName("com.mysql.jdbc.Driver");
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connection = DriverManager.getConnection(URL,USERNAME,PASSWORD );
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String sql = "inset into use(username,password,phonenum,email) vaule(?,?,?,?) " ;
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pstmt =connection.prepareStatement( sql);
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pstmt.setString(1, use.getUsername() );
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pstmt.setString(2, use.getPassword() );
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pstmt.setInt(3, use.getPhonenum() );
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pstmt.setString(4, use.getEmail() );
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int count = pstmt.executeUpdate() ;
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if(count>0)
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return true;
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else
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return false;
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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return false;
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} catch (SQLException e) {
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e.printStackTrace();
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return false;
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}catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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finally {
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try {
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if(rs!=null)rs.close();
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if(pstmt!=null)pstmt.close();
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if(connection!=null)connection.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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//查询
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public Use queryUseByusername(String username) {
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Use use= null;
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Connection connection = null;
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PreparedStatement pstmt = null;
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ResultSet rs= null;
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try {
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Class.forName("com.mysql.jdbc.Driver");
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connection = DriverManager.getConnection(URL,USERNAME,PASSWORD );
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String sql = "select * from use where username = ? ";
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pstmt =connection.prepareStatement( sql);
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pstmt.setString(1, username);
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rs = pstmt.executeQuery() ;
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if(rs.next()) {
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String uname= rs.getString("username");
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String password= rs.getString("password");
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int phonenum= rs.getInt("phonenum");
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String email= rs.getString("email");
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use = new Use(uname,password,phonenum,email);
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}
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return use;
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} catch (ClassNotFoundException e) {
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e.printStackTrace();
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return null;
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} catch (SQLException e) {
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e.printStackTrace();
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return null;
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}catch (Exception e) {
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e.printStackTrace();
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return null;
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}
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finally {
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try {
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if(rs!=null)rs.close();
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if(pstmt!=null)pstmt.close();
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if(connection!=null)connection.close();
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}
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}
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@ -0,0 +1,45 @@
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package org.use.entity;
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public class Use {
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private String username;
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private String password;
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private int phonenum;
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private String email;
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public Use() {
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}
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public Use(String username, String password, int phonenum, String email) {
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this.username = username;
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this.password = password;
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this.phonenum = phonenum;
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this.email = email;
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}
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public String getUsername() {
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return username;
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}
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public void setUsername(String username) {
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this.username = username;
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}
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public String getPassword() {
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return password;
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}
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public void setPassword(String password) {
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this.password = password;
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}
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public int getPhonenum() {
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return phonenum;
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}
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public void setPhonenum(int phonenum) {
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this.phonenum = phonenum;
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}
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public String getEmail() {
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return email;
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}
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public void setEmail(String email) {
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this.email = email;
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}
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}
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@ -0,0 +1,18 @@
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package org.use.service;
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import org.use.dao.UseDao;
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import org.use.entity.Use;
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public class UseService {
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UseDao useDao = new UseDao();
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public boolean regUse(Use use) {
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if(!useDao.isExist(use.getUsername())) {
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useDao.addUse(use);
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return true;
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}else {
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System.out.println("此人已经存在!");
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return false;
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}
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}
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}
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@ -0,0 +1,38 @@
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package org.use.servlet;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.use.entity.Use;
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import org.use.service.UseService;
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/**
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* Servlet implementation class RegUseServlet
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*/
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public class RegUseServlet extends HttpServlet {
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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String username= request.getParameter("username");
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String password= request.getParameter("password");
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int phonenum= Integer.parseInt(request.getParameter("phonenum"));
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String email= request.getParameter("email");
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Use use =new Use(username,password,phonenum,email);
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UseService useService = new UseService();
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boolean result = useService.regUse(use);
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PrintWriter out = response.getWriter() ;
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if(result) {
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out.println("注册成功") ;
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}else {
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out.println("注册失败");
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}
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}
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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doGet(request, response);
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}
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}
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@ -0,0 +1,68 @@
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<%@ page language="java" contentType="text/html; charset=UTF-8"
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pageEncoding="UTF-8"%>
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<style>
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a:link {color:#87CEFA;}
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#section{
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width: 450px;
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height: 600px;
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padding: 10px;
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float: left;
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background-color: white;
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transform: translateY(50px);
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position: relative;
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left:540px;
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}
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#section1{
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width:240px;
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height: 60px;
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padding: 10px;
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float:right
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}
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#name{
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display: inline-block;
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margin-left: 20px;
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}
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#name1{
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display: inline-block;
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margin-left: 20px;
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}
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#button{
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width:350px;
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height: 50px;
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background: #DC143C;
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display: inline-block;
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transform: translateY(450px);
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position: relative;
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left:-223px;
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}
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</style>
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</head>
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<body style="background-image: url( 图片/QQ截图20190110093949.png);background-repeat:no-repeat">
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<div id="section">
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</div>
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<div id="section1" style="background:url(图片/QQ截图20190110095831.png);transform: translateY(80px);position: relative;right:610px;"></div>
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<div id="name">
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<input style="transform: translateY(200px);position: relative;left: 115px; width: 350px;height:40px;" type="text" id="username" name="username" placeholder=" 请输入用户名" />
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</div>
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<form action="RegUseServlet" method="post">
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<div id="name1">
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<input style="transform: translateY(268px);position: relative;left: -265px; width: 350px;height:40px;" type="text" id="password" name="password" placeholder=" 请输入密码" />
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</div>
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<input style="transform: translateY(288px);position: relative;left: 134px; width: 350px;height:40px;" type="text" id="repassword" name="repassword" placeholder=" 确认密码" />
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<input style="transform: translateY(356px);position: relative;left: -225px; width: 350px;height:40px;" type="text" id="phonenum" name="phonenum" placeholder=" 请输入手机号" />
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<input style="transform: translateY(380px);position: relative;left: 134px; width: 350px;height:40px;" type="text" id="email" name="email" placeholder=" 请输入邮箱" />
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<input id="button" type="submit" value="注册">
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</form>
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<a href="登录.html" style="text-decoration: none;position: relative;left:-350px;bottom: -520px">已有账号，立即登录</a>
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</body>
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</html>
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Loading…
Reference in new issue