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基于SpringBoot框架的RBAC权限模型代码实现（demo）（纯接口无后台）_rbac demo

作者：我家小花儿 | 2024-04-16 23:40:52

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rbac demo

RBAC权限模型，基于角色的权限控制 ，本质即用户与角色，角色与权限多对多的关系，通过这样的模型方便权限管理，避免多次重复赋予用户权限，减小了时间的浪费。
请添加图片描述

UserService

/**
 * @className: UserService
 * @description: service类描述
 * @author: whz
 * @date: 2021/9/19
 **/
public interface UserService {

    //通过id删除单个用户
    int deleteById(Integer id);
    //查全部
    List<User> selectAll();
    //批量删除
    int deletedisp(int[] ids);
    //通过id查询用户详细信息（包括角色集合）
    UserVo selectUrById(Integer id);
    //添加用户
    int insert(User user,List<Integer> roleids);
    //更新用户信息
    int update(User user, List<Integer> uproleids);
    //登录验证并回显菜单树
     UserVo login(User user, HttpServletRequest request, HttpServletResponse response);
}

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UserServiceImpl

/**
 * @className: UserServiceImpl
 * @description: TODO 类描述
 * @author: whz
 * @date: 2021/9/19
 **/
@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;

    @Override
    public int deleteById(Integer id) {
        int i=userMapper.deleteById(id);
        userMapper.deleteur(id);
        return i;
    }

    @Override
    public List<User> selectAll() {
        List<User> li=userMapper.selectAll();
        return li;
    }

    @Override
    public int deletedisp(int[] ids) {
        int flag=1;
        int j;
        for (int i = 0; i <ids.length ; i++) {
            j=deleteById(ids[i]);
            if(j==0){
                flag=0;
            }
        }
        return flag;
    }

    @Override
    public UserVo selectUrById(Integer id) {
        UserVo userVo = userMapper.selectUrById(id);
        return userVo;
    }

    @Override
    public int insert(User user, List<Integer> roleids) {
        int i=userMapper.insert(user);
        int userid=user.getId();
        for (int j = 0; j <roleids.size() ; j++) {
            User_Role user_role = new User_Role();
            user_role.setUserid(userid);
            user_role.setRoleid(roleids.get(j));
            userMapper.insertur(user_role);
        }
        return i;
    }

    @Override
    public int update(User user, List<Integer> uproleids) {
        int i=userMapper.update(user);
        userMapper.deleteur(user.getId());
        for (int j = 0; j <uproleids.size() ; j++) {
            User_Role user_role = new User_Role();
            user_role.setUserid(user.getId());
            user_role.setRoleid(uproleids.get(j));
            userMapper.insertur(user_role);
        }
        return i;
    }
    public UserVo login(User user, HttpServletRequest request, HttpServletResponse response){
        UserVo uv=userMapper.login(user);
        if(uv!=null){//登陆成功
            request.getSession().setAttribute("username",uv.getUsername() );
            return uv;
        }else {//登陆失败
            return null;
        }
    }
}


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登录验证做的比较简单，还可以添加拦截器对未登录用户强制转回登录页面，这里主要写了一些主要的增删改查逻辑，需要在删除用户的同时维护好用户——角色关联表，更新同理，这里先删除了待更新对象旧的关系行，然后重新添加。

UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.qcby.shujia.demo.mapper.UserMapper">
    <select id="selectUrById" resultMap="uservo">
        SELECT user.id,user.username,user.password,role.rolename,role.id rid FROM user,user_role,role where user.id=user_role.userid and user_role.roleid=role.id and user.id=#{id}
    </select>
    <resultMap id="uservo" type="com.qcby.shujia.demo.entity.vo.UserVo">
        <result property="id" column="id"></result>
        <result property="username" column="username"></result>
        <result property="password" column="password"></result>
        <collection property="urlist" ofType="com.qcby.shujia.demo.entity.Role">
           <result property="rolename"  column="rolename"></result>
            <result property="id"  column="rid"></result>
        </collection>
    </resultMap>
    <select id="selectAll" resultType="com.qcby.shujia.demo.entity.User">
        select * from user where flag=1
    </select>

    <insert id="insert">
        <selectKey keyProperty="id" resultType="int" order="AFTER">
            select last_insert_id();
        </selectKey>
        insert into user (username,password) values (#{username},#{password})
    </insert>

    <insert id="insertur">
        insert into user_role (userid,roleid) VALUES (#{userid},#{roleid})
    </insert>

    <update id="deleteById">
        UPDATE user set flag=0 where id=#{id}
    </update>
    <update id="update" parameterType="com.qcby.shujia.demo.entity.User">
        update user
        <set>
            <if test="username != null">
                username=#{username},
            </if>
            <if test="password != null">
                password=#{password},
            </if>
        </set>
        where id = #{id}
    </update>

    <delete id="deleteur">
        delete from user_role where userid=#{id}
    </delete>

    <select id="login" parameterType="com.qcby.shujia.demo.entity.User" resultMap="uservo">
        SELECT user.id,user.username,user.password,role.rolename,role.id rid FROM user,user_role,role where user.id=user_role.userid and user_role.roleid=role.id
         and username=#{username} and password=#{password}
    </select>
</mapper>

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涉及到多表联查，以及插入后获取当前id等零碎知识点

RoleServiceImpl

/**
 * @className: RoleServiceImpl
 * @description: TODO 类描述
 * @author: whz
 * @date: 2021/9/20
 **/
@Service
public class RoleServiceImpl implements RoleService {
    @Autowired
    private RoleMapper roleMapper;
    @Override
    public int deleteById(Integer id) {
        int i=roleMapper.deleteById(id);
        roleMapper.deleterr(id);
        roleMapper.deleteur(id);
        return i;
    }

    @Override
    public List<Role> selectAll() {
        List<Role> li=roleMapper.selectAll();
        return li;
    }

    @Override
    public int deletedisp(int[] ids) {
        int flag=1;
        int j;
        for (int i = 0; i <ids.length ; i++) {
            j=deleteById(ids[i]);
            if(j==0){
                flag=0;
            }
        }
        return flag;
    }

    @Override
    public RoleVo selectRrById(Integer id) {
        RoleVo roleVo = roleMapper.selectRrById(id);
        return roleVo;
    }

    @Override
    public int insert(Role role, List<Integer> rightids) {
        int i=roleMapper.insert(role);
        int roleid=role.getId();
        for (int j = 0; j <rightids.size() ; j++) {
            Role_Right role_right = new Role_Right();
            role_right.setRoleid(roleid);
            role_right.setRightid(rightids.get(j));
            roleMapper.insertrr(role_right);
        }
        return i;
    }

    @Override
    public int update(Role role, List<Integer> uprightids) {
        int i = roleMapper.update(role);
        roleMapper.deleterr(role.getId());
        for (int j = 0; j < uprightids.size(); j++) {
            Role_Right role_right = new Role_Right();
            role_right.setRoleid(role.getId());
            role_right.setRightid(uprightids.get(j));
            roleMapper.insertrr(role_right);
        }
        return i;
    }
}


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对角色权限表进行维护，同样是多对多的处理，通过包装类同时将角色的权限对象查出来

RoleMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.qcby.shujia.demo.mapper.RoleMapper">



    <select id="selectRrById" resultMap="rolevo">
      SELECT role.id,role.rolename,tright.path_value,tright.path_str,tright.id rid FROM role inner join role_right on role.id=role_right.roleid inner join tright on role_right.rightid=tright.id where role.id=#{id}
    </select>
    <resultMap id="rolevo" type="com.qcby.shujia.demo.entity.vo.RoleVo">
        <result property="id" column="id"></result>
        <result property="rolename" column="rolename"></result>
        <collection property="roRightli" ofType="com.qcby.shujia.demo.entity.Tright">
           <result property="path_value"  column="path_value"></result>
            <result property="id"  column="rid"></result>
            <result property="path_str"  column="path_str"></result>
        </collection>
    </resultMap>

    <select id="selectAll" resultType="com.qcby.shujia.demo.entity.Role">
        select * from role where flag=1
    </select>

    <insert id="insert">
        <selectKey keyProperty="id" resultType="int" order="AFTER">
            select last_insert_id();
        </selectKey>
        insert into role (rolename) values (#{rolename})
    </insert>



    <update id="deleteById">
        UPDATE role set flag=0 where id=#{id}
    </update>

    <update id="update" parameterType="com.qcby.shujia.demo.entity.Role">
        update role
        <set>
            <if test="rolename != null">
                rolename=#{rolename},
            </if>
        </set>
        where id = #{id}
    </update>

    <delete id="deleterr">
        delete from role_right where roleid=#{id}
    </delete>

    <delete id="deleteur">
        delete from user_role where roleid=#{id}
    </delete>

    <insert id="insertrr">
        insert into role_right (roleid,rightid) VALUES (#{roleid},#{rightid})
    </insert>

</mapper>

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TrightServiceImpl

/**
 * @className: TrightServiceImpl
 * @description: TODO 类描述
 * @author: whz
 * @date: 2021/9/20
 **/
@Service
public class TrightServiceImpl implements TrightService {
    @Autowired
    private TrightMapper trightMapper;
    @Override
    public int insert(Tright tright) {
        int i=trightMapper.insert(tright);
        return i;
    }

    @Override
    public int delete(Integer id) {
        int i=trightMapper.deleteById(id);
        trightMapper.deleterr(id);
        return i;
    }

    @Override
    public int deletedisp(int[] ids) {
        int flag=1;
        for (int i = 0; i <ids.length ; i++) {
            int i1 = delete(ids[i]);
            if(i1==0){
                flag=0;
            }
        }
        return flag;
    }

    @Override
    public List<Tright> selectAll() {
        List<Tright> li=trightMapper.selectAll();
        return li;
    }

    @Override
    public int update(Tright tright) {
        int i=trightMapper.update(tright);
        return i;
    }
}


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最简单的一环，因为是单表的增删改查，有一个点需要注意，删除权限后需要去维护权限——角色表里的信息，否则导致无效的权限仍然会被角色获取。

RightMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.qcby.shujia.demo.mapper.TrightMapper">
    <insert id="insert">
        insert into tright (path_value,path_str) values (#{path_value},#{path_str})
    </insert>
    <update id="deleteById">
        UPDATE tright set flag=0 where id=#{id}
    </update>
    <select id="selectAll" resultType="com.qcby.shujia.demo.entity.Tright">
        select * from tright where flag=1
    </select>
    <delete id="deleterr">
        delete from role_right where rightid=#{id}
    </delete>
    <update id="update" parameterType="com.qcby.shujia.demo.entity.Tright">
        update tright
        <set>
            <if test="path_value != null">
                path_value=#{path_value},
            </if>
            <if test="path_str != null">
                path_str=#{path_str},
            </if>
        </set>
        where id = #{id}
    </update>
</mapper>

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这一块博主犯了一个错误，在建表的时候将权限表名字设置为了right,这是个关键字！！！导致后期联表查询怎么查都报错才发现，大家千万要避免踩坑，因此我把right设置成了tright的名字，但是后面太多不好改，在不影响代码的前提下做了一些修正，建表需要以_为间隔，代码规范很重要！
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