SpringBoot -登陆注册html
在前面的学习中咱们学会简单建立一个springboot项目,那么如今就开始学习如何作注册登陆了java
工具springboot +maven +hibernate+mysql
一、项目结构mysql
html 分为主页面index、注册register、登陆login 和 登陆成功success页面。
web
二、pom文件spring
<?xml version="1.0" encoding="UTF-8"?>
4.0.0sql
<groupId>com.online.shixun</groupId> <artifactId>HelloSpringboot</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>HelloSpringboot</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.0.RELEASE</version> <relativePath /> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> <scope>true</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <!-- 数据库包 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build>
三、编写实体User类数据库
package com.online.shixun.entity;springboot
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;app
@Entity(name = “t_user”)
public class User {
maven
@Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; private String username; private String password; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }
}
四、DAO层
package com.online.shixun.dao;
import java.util.List;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import com.online.shixun.entity.User;
@Repository
public interface UserDao extends JpaRepository<User, Long> {
public User findByUsernameAndPassword(String username, String password); public List<User> findByUsername(String username);
}
五、Service层
package com.online.shixun.service;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.online.shixun.dao.UserDao;
import com.online.shixun.entity.User;
@Service
public class UserService {
@Autowired UserDao userDao; public User FindNameAndPsw(String username, String password) { return userDao.findByUsernameAndPassword(username, password); } public void save(User user1) { userDao.save(user1); } public List<User> findByName(String username) { return userDao.findByUsername(username); }
}
六、Controller类
package com.online.shixun.controller;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.online.shixun.entity.User;
import com.online.shixun.service.UserService;
@Controller
@RequestMapping("/front/*")
public class UserController {
@Autowired UserService userService; @RequestMapping("/") public String index() { return "index"; } /** * 去注册页面 * * @return */ @RequestMapping("/register") public String register() { return "register"; } /** * 执行注册 成功后登陆页面 不然调回注册页面 * * @param request * @param user * @return */ @RequestMapping("/doregister") public String register(HttpServletRequest request, User user) { String username = request.getParameter("username"); String password = request.getParameter("password"); String password2 = request.getParameter("password2"); if (password.equals(password2)) { if (registerUser(username) == true) { User user1 = new User(); user1.setUsername(username); user1.setPassword(password); userService.save(user1); return "login"; } else { return "register"; } } else { return "register"; } } public Boolean registerUser(String username) { Boolean a = true; if (userService.findByName(username).isEmpty()) { return a; } else { return false; } } /** * 去登陆页面 * * @return */ @RequestMapping("/login") public String login() { return "login"; } /** * 执行登陆 * * @param request * @return */ @RequestMapping("/dologin") public String login(HttpServletRequest request) { String username = request.getParameter("username"); String password = request.getParameter("password"); User user = userService.FindNameAndPsw(username, password); String str = ""; if (user != null) { str = "success"; } else { str = "login"; } return str; }
}
七、application.properties配置文件
server.port=8084
spring.datasource.url = jdbc:mysql://localhost:3306/test
spring.datasource.username = root
spring.datasource.password = root
spring.datasource.driverClassName = com.mysql.jdbc.Driver
spring.jpa.database = MYSQL
spring.jpa.show-sql = true
spring.jpa.hibernate.ddl-auto = update
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect
spring.thymeleaf.cache=false
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=utf-8
spring.thymeleaf.servlet.content-type=text/html
八、静态页面
index.html
登陆成功!