文章插圖

文章插圖
1、登錄注冊思路
這是一個使用spring boot做的一個qq郵箱注冊和登錄的項目 。沒寫前端頁面,使用postman測試 。有截圖詳細 。1.1、思路
注冊:通過輸入的郵箱發送驗證碼,檢驗前端傳來的驗證碼是否和后臺生成的一致,若一致,將數據寫入數據庫,完成注冊;
登錄:通過輸入的郵箱查詢密碼,然后比較密碼是否一致,一致就是登錄成功 。
1.2、整個項目結構圖
登錄qq郵箱后,點擊左上方的設置,選擇賬戶,如下圖 。
下邊是pom.xml中<dependencies>標簽的全部依賴
<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--web--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-mail</artifactId></dependency><!--mybatis--><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.3.2</version></dependency><!--jdbc--><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.19</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jdbc</artifactId></dependency></dependencies>2.3、application.properties配置文件application.properties配置文件
#郵箱配置#平臺地址,這里用的是qq郵箱,使用其他郵箱請更換spring.mail.host = smtp.qq.com#改成自己的郵箱spring.mail.username = [email protected]#發送短信后它給你的授權碼 填寫到這里spring.mail.password = xxxxxx#這東西不用改spring.mail.properties.mail.smtp.ssl.enable=true##編碼格式spring.mail.default-encoding=UTF-8#數據庫相關配置spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driverspring.datasource.url=jdbc:mysql://localhost:3306/email?useSSL=true&characterEncoding=utf-8&serverTimezone=UTCspring.datasource.username=rootspring.datasource.password=root#配置mappermybatis.mapper-locations=classpath:mapper/*.xml2.4、創建數據庫數據庫結構如下圖
CREATEDATABASEemail;在email數據庫創建user表CREATE TABLE `user` (`id` int(20) NOT NULL AUTO_INCREMENT,`username` varchar(255) NOT NULL,`password` varchar(255) NOT NULL,`email` varchar(255) NOT NULL,PRIMARY KEY (`id`))ENGINE=InnoDBAUTO_INCREMENT=6DEFAULTCHARSET=utf8;3、全部代碼類如最上邊的項目結構圖 。controller包是和前端對接的,mapper包中是接口,pojo是實體類,service層是邏輯代碼,vo包是前端發送數據暫時保存 。
執行流程: 使用postman發送請求,controller中會接受,然后調用service中的邏輯代碼,service會調用的mapper中接口,mapper的對應的xml實現對數據庫的各種操作 。
3.1、UserController.java
package com.lu.youxiang.controller;import com.lu.youxiang.service.MailService;import com.lu.youxiang.vo.UserVo;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.ResponseBody;import javax.servlet.http.HttpSession;@Controllerpublic class UserController {@Autowiredprivate MailService mailService;@PostMapping("/sendEmail")@ResponseBodypublic String sendEmail(String email, HttpSession httpSession){mailService.sendMimeMail(email, httpSession);return "sucess";}@PostMapping("/regist")@ResponseBodypublic String regist(UserVo userVo, HttpSession session){mailService.registered(userVo,session);return "sucess";}@PostMapping("/login")@ResponseBodypublic String login(String email, String password){mailService.loginIn(email,password);return "sucess";}}3.2、UserMapper.javapackage com.lu.youxiang.mapper;import com.lu.youxiang.pojo.User;import org.apache.ibatis.annotations.Mapper;import org.springframework.stereotype.Repository;@[email protected] interface UserMapper {/*** 注冊,插入數據* @param user*/void insertUser(User user);/*** 根據郵箱查詢* @param email* @return*/User queryByEmail(String email);}【qq郵箱格式怎么寫才是正確的 qq郵箱的格式怎樣寫】3.3、User.javapackage com.lu.youxiang.pojo;public class User {private String username;private String password;private String email;//get和set方法省略了,自己生成一下}3.4、MailService.java ,重要 。package com.lu.youxiang.service;import com.lu.youxiang.mapper.UserMapper;import com.lu.youxiang.pojo.User;import com.lu.youxiang.vo.UserVo;import com.lu.youxiang.vo.UserVoToUser;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.beans.factory.annotation.Value;import org.springframework.mail.SimpleMailMessage;import org.springframework.mail.javamail.JavaMailSender;import org.springframework.stereotype.Service;import javax.servlet.http.HttpSession;import java.util.Random;@Servicepublic class MailService {@Autowiredprivate JavaMailSender mailSender;[email protected]@Autowiredprivate UserMapper userMapper;//注入UserMapper,交給bena//application.properties中已配置的值@Value("${spring.mail.username}")private String from;/*** 給前端輸入的郵箱,發送驗證碼* @param email* @param session* @return*/public boolean sendMimeMail( String email, HttpSession session) {try {SimpleMailMessage mailMessage = new SimpleMailMessage();mailMessage.setSubject("驗證碼郵件");//主題//生成隨機數String code = randomCode();//將隨機數放置到session中session.setAttribute("email",email);session.setAttribute("code",code);mailMessage.setText("您收到的驗證碼是:"+code);//內容mailMessage.setTo(email);//發給誰mailMessage.setFrom(from);//你自己的郵箱mailSender.send(mailMessage);//發送returntrue;}catch (Exception e){e.printStackTrace();return false;}}/*** 隨機生成6位數的驗證碼* @return String code*/public String randomCode(){StringBuilder str = new StringBuilder();Random random = new Random();for (int i = 0; i < 6; i++) {str.append(random.nextInt(10));}return str.toString();}/*** 檢驗驗證碼是否一致* @param userVo* @param session* @return*/public boolean registered(UserVo userVo, HttpSession session){//獲取session中的驗證信息String email = (String) session.getAttribute("email");String code = (String) session.getAttribute("code");//獲取表單中的提交的驗證信息String voCode = userVo.getCode();//如果email數據為空,或者不一致,注冊失敗if (email == null || email.isEmpty()){//return "error,請重新注冊";return false;}else if (!code.equals(voCode)){//return "error,請重新注冊";return false;}//保存數據User user = UserVoToUser.toUser(userVo);//將數據寫入數據庫userMapper.insertUser(user);//跳轉成功頁面return true;}/*** 通過輸入email查詢password,然后比較兩個password,如果一樣,登錄成功* @param email* @param password* @return*/public boolean loginIn(String email, String password){User user = userMapper.queryByEmail(email);if(!user.getPassword().equals(password)){return false;}System.out.println("登錄成功:數據庫密碼是:"+user.getPassword());return true;}}3.5、UserVo.javapackage com.lu.youxiang.vo;public class UserVo {private String username;private String password;private String email;//驗證碼private String code;//省略了get和set方法,自己生成一下}3.6、UserVoToUser.javapackage com.lu.youxiang.vo;import com.lu.youxiang.pojo.User;public class UserVoToUser {/*** 將表單中的對象轉化為數據庫中存儲的用戶對象(剔除表單中的code)* @param userVo* @return*/public static User toUser(UserVo userVo) {//創建一個數據庫中存儲的對象User user = new User();//傳值user.setUsername(userVo.getUsername());user.setPassword(userVo.getPassword());user.setEmail(userVo.getEmail());// 返回包裝后的對象return user;}}主配置類不復制了,創建springboot項目后,就有 。3.7、UserMapper.xml在resources包下創建mapper包,用來放xml,然后再這個包中創建UserMapper.xml,內容如下 。
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.lu.youxiang.mapper.UserMapper"><insert id="insertUser" parameterType="com.lu.youxiang.pojo.User">insert into user (username,password,email)values (#{username},#{password},#{email})</insert><select id="queryByEmail" resultType="com.lu.youxiang.pojo.User">select *from userwhere email = #{email}</select></mapper>4、使用postman測試如果沒有這個軟件,安裝一下,使用很簡單 。打開后,點擊左上角的file,再點擊New Tab,就會出來一個頁面 。(或者使用Ctrl+T快捷鍵)
4.1、測試發送郵件
請求url:
http://localhost:[email protected]
把請求url復制到如下如的url中, 郵箱換成自己的,請求方式換成POST 。點擊send 。如下圖
請求url:
http://localhost:8080/regist
把請求url復制到如下如的url中, 郵箱換成自己的,code的值寫郵箱收到的,請求方式換成POST 。點擊send,如下圖
請求url:
http://localhost:[email protected]&password=12345
復制url,改成POST請求,點擊Send 。
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