一 介绍：

主要用到SpringBoot、hibernate、swagger、mybatis、shiro、maven等技术。
项目使用idea、mysql数据库开发，idea要安装lombok插件否则会报错。

二 依赖：

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

        <!--    &lt;!&ndash; spring security 安全认证 &ndash;&gt;-->
        <!--    <dependency>-->
        <!--      <groupId>org.springframework.boot</groupId>-->
        <!--      <artifactId>spring-boot-starter-security</artifactId>-->
        <!--    </dependency>-->


        <!-- shiro依赖配置 -->
        <dependency>
            <groupId>org.apache.shiro</groupId>
            <artifactId>shiro-spring</artifactId>
            <version>1.4.0</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/log4j/log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger2</artifactId>
            <version>2.7.0</version>
        </dependency>

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-swagger-ui</artifactId>
            <version>2.7.0</version>
        </dependency>




        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!--    pagehelper分页-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.2.10</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
            <version>2.2.2.RELEASE</version>
        </dependency>

        <!-- jstl标签库-->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.1.2</version>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/redis.clients/jedis -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.9.0</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20160810</version>
        </dependency>
        <!--日志-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>


        <!--热部署-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.4</version>
            <classifier>jdk15</classifier>
        </dependency>
         <dependency>
     <groupId>com.auth0</groupId>
     <artifactId>java-jwt</artifactId>
     <version>3.7.0</version>
 </dependency>
 <dependency>
     <groupId>cn.hutool</groupId>
     <artifactId>hutool-all</artifactId>
     <version>5.1.3</version>
 </dependency>
 <dependency>
     <groupId>io.springfox</groupId>
     <artifactId>springfox-swagger2</artifactId>
     <version>2.9.2</version>
 </dependency>
 <!--jsoup爬取-->
 <dependency>
     <groupId>org.jsoup</groupId>
     <artifactId>jsoup</artifactId>
     <version>1.12.1</version>
 </dependency>

三 SpringBoot yml配置文件编写：

server:
#  修改端口
  port: 8888

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/shiro?serverTimezone=UTC&characterEncoding=utf8
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: root
    password: .
#    hikari 数据源转专用配置
    hikari:
      maximum-pool-size: 20
      minimum-idle: 5
  redis:
    host: 127.0.0.1
    port: 6379
    timeout: 5000
    password:
    database: 0
  jpa:
#    切换存储引擎
    database-platform: org.hibernate.dialect.MySQL5InnoDBDialect
#    日志打印sql语句
    show-sql: true
#    检查表是否存在 是否与实体类匹配  !!!
    hibernate:
      ddl-auto: update #指定为update，每次启动项目检测表结构有变化的时候会新增字段，表不存在时会新建，如果指定create，则每次启动项目都会清空数据并删除表，再新建
      naming:
        implicit-strategy: org.hibernate.boot.model.naming.ImplicitNamingStrategyLegacyJpaImpl #指定jpa的自动表生成策略，驼峰自动映射为下划线格式
        #physical-strategy: org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
  thymeleaf:
    cache: false
#   mvc:
#    view:
#      prefix: /static/jsp/
#      suffix: .jsp
mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.inspur.pojo

#  配置pagehelper
pagehelper:
  helper-dialect: mysql  #配置方言 底层是什么数据库

# 日志配置
logging:
  level:
    com.ruoyi: debug
    org.springframework: warn

四 实体类编写：

package com.heyu.pojo;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;
import java.util.List;

/**
 * Author  heyu
 * Date： 2020/7/28 17:02
 * Description: 用户类
 */
@Getter
@Setter
@Entity
@ToString
@Table(name = "sys_user")
public class SysUser {
    @Id
    @Column(name = "ID", unique = true, nullable = false)
    @SequenceGenerator(name = "RBBTJ_SEQ", sequenceName = "RBBTJ_SEQ", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "RBBTJ_SEQ")
    private Integer id;
    @Column(unique = true,length = 32)
    private String name;
    @Column(length = 32)
    private String password;
    @OneToMany(cascade = CascadeType.ALL,mappedBy = "user")
    private List<SysRole> roles;
}

package com.heyu.pojo;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;
import java.util.List;

/**
 * Author  heyu
 * Date： 2020/7/28 17:26
 * Description: 角色类
 */
@Getter
@Setter
@Entity
@ToString
@Table(name = "sys_role")
public class SysRole {
    @Id
    @Column(name = "ID", unique = true, nullable = false)
    @SequenceGenerator(name = "RBBTJ_SEQ", sequenceName = "RBBTJ_SEQ", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "RBBTJ_SEQ")
    private Integer id;
    @Column(length = 32)
    private String roleName;
    @ManyToOne(fetch = FetchType.EAGER)
    private SysUser user;
    @OneToMany(cascade = CascadeType.ALL,mappedBy = "role")
    private List<SysPermission> permissions;
}

package com.heyu.pojo;

import lombok.Getter;
import lombok.Setter;
import lombok.ToString;

import javax.persistence.*;

/**
 * Author  heyu
 * Date： 2020/7/28 17:26
 * Description: 权限类
 */
@Getter
@Setter
@Entity
@ToString
@Table(name = "sys_permission")
public class SysPermission{
    @Id
    @Column(name = "ID", unique = true, nullable = false)
    @SequenceGenerator(name = "RBBTJ_SEQ", sequenceName = "RBBTJ_SEQ", allocationSize = 1)
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "RBBTJ_SEQ")
    private Integer id;
    private String permission;
    @ManyToOne(fetch = FetchType.EAGER)
    private SysRole role;
}

五 API文档展示配置

package com.heyu.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

/**
 * Author  heyu
 * Date： 2020/7/28 19:45
 * Description: 系统接口  在控制层添加注释 起名  @Api(tags = "系统登陆")
 */
@Slf4j
@Configuration
@EnableSwagger2
public class SwaggerConfig {

    @Bean
    public Docket createRestApi(){
        return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.any())
                .paths(PathSelectors.any()).build();
    }

    private ApiInfo apiInfo(){
        return new ApiInfoBuilder()
                .title("HeYu API Doc")
                .description("何其所幸，得以相遇！")
                .version("1.0")
                .build();
    }


}

六 Dao层代码编写：

package com.heyu.dao;

import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.repository.NoRepositoryBean;
import org.springframework.data.repository.PagingAndSortingRepository;

import java.io.Serializable;

/**
 * Author  heyu
 * Date： 2020/7/28 19:53
 * Description:  作为父类  被其他dao层继承
 */
@NoRepositoryBean
public interface BaseDao<T, I extends Serializable>
        extends PagingAndSortingRepository<T, I>, JpaSpecificationExecutor<T> {

}

package com.heyu.dao;

import com.heyu.pojo.SysUser;

/**
 * Author: heyu
 * <p>
 * Date: 2020/5/1 21:42
 * <p>
 * Description:
 */
public interface UserDao  extends BaseDao<SysUser, Integer> {
        SysUser findByName(String name);
}

package com.heyu.dao;

import com.heyu.pojo.SysRole;

/**
 * Author  heyu
 * Date： 2020/7/28 19:58
 * Description:
 */
public interface RoleDao extends BaseDao<SysRole,Integer> {
}

七 业务逻辑层编写

package com.heyu.service;

import com.heyu.pojo.SysRole;
import com.heyu.pojo.SysUser;

/**
 * Author  程鹏
 * Date： 2020/7/28 19:59
 * Description:
 */
public interface  LoginService {
    SysUser addUser(SysUser user);

    SysRole addRole(SysRole role);

    SysUser findByName(String name);

}

package com.heyu.service.serviceImpl;

import com.heyu.dao.RoleDao;
import com.heyu.dao.UserDao;
import com.heyu.pojo.SysPermission;
import com.heyu.pojo.SysRole;
import com.heyu.pojo.SysUser;
import javax.transaction.Transactional;
import com.heyu.service.LoginService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * Author  heyu
 * Date： 2020/7/28 20:01
 * Description:
 */

@Service
@Transactional
public class LoginServiceImpl implements LoginService {

    @Autowired
    private UserDao userDao;
    @Autowired
    private RoleDao roleDao;


    @Override
    public SysUser addUser(SysUser sysUser) {
        userDao.save(sysUser);
        return sysUser;
    }


    @Override
    public SysRole addRole(SysRole sysRole) {
        SysUser sysUser = userDao.findByName(sysRole.getUser().getName());
        sysRole.setUser(sysUser);
        SysPermission permission1 = new SysPermission();
        permission1.setPermission("create");
        permission1.setRole(sysRole);
        SysPermission permission2 = new SysPermission();
        permission2.setPermission("update");
        permission2.setRole(sysRole);
        List<SysPermission> permissions = new ArrayList<SysPermission>();
        permissions.add(permission1);
        permissions.add(permission2);
        sysRole.setPermissions(permissions);
        roleDao.save(sysRole);
        return sysRole;
    }


    @Override
    public SysUser findByName(String name) {
        return userDao.findByName(name);
    }
}

八 控制层编写

package com.heyu.controller;

import com.heyu.pojo.SysRole;
import com.heyu.pojo.SysUser;
import com.heyu.service.LoginService;
import io.swagger.annotations.Api;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.authz.annotation.RequiresPermissions;
import org.apache.shiro.authz.annotation.RequiresRoles;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;


@RequestMapping("/system")
@RestController
@Api(tags = "系统登陆")
public class LoginController {

    @Autowired
    private LoginService loginService;

    /**
     * POST登录
     * @param sysUser
     * @return
     */
    @PostMapping(value = "/login")
    public String login(@RequestBody SysUser sysUser) {
        UsernamePasswordToken usernamePasswordToken = new UsernamePasswordToken(sysUser.getName(), sysUser.getPassword());
        SecurityUtils.getSubject().login(usernamePasswordToken);
        return "login ok!";
    }

    /**
     * 添加用户
     * @param sysUser
     * @return
     */
    @PostMapping(value = "/addUser")
    public String addUser(@RequestBody SysUser sysUser) {
        sysUser = loginService.addUser(sysUser);
        return "addUser is ok! \n" + sysUser;
    }

    /**
     * 添加角色
     * @param sysRole
     * @return
     */
    @PostMapping(value = "/addRole")
    public String addRole(@RequestBody SysRole sysRole) {
        sysRole = loginService.addRole(sysRole);
        return "addRole is ok! \n" + sysRole;
    }

    /**
     * 注解的使用
     * @return
     */
    @RequiresRoles("admin")
    @RequiresPermissions("create")
    @GetMapping(value = "/create")
    public String create() {
        return "Create success!";
    }

    @GetMapping(value = "/index")
    public String index() {
        return "index page!";
    }

    @GetMapping(value = "/error")
    public String error() {
        return "error page!";
    }

    /**
     * 退出的时候是get请求，主要是用于退出
     * @return
     */
    @GetMapping(value = "/login")
    public String login() {
        return "login";
    }

    @GetMapping(value = "/logout")
    public String logout() {
        return "logout";
    }
}