【学生管理系统】权限管理之角色管理
目录
6.3 角色管理
6.3.1 查询所有角色
1）后端【已有】
2）前端
- 要求：左右分屏
<template>
<div>
<el-row>
<el-col :span="16">
<el-card class="role-list-card">
<div slot="header" class="clearfix">
<span>角色列表</span>
</div>
<!-- 角色列表 start -->
<el-table
:data="roleList"
stripe
style="width: 100%">
<el-table-column
prop="id"
label="角色ID"
fixed
width="80">
</el-table-column>
<el-table-column
prop="roleName"
label="角色名称"
fixed
width="180">
</el-table-column>
<el-table-column
prop="roleDesc"
label="角色描述"
width="200">
</el-table-column>
<el-table-column
label="操作"
fixed="right">
<template slot-scope="scope">
<el-button size="mini">编辑</el-button>
<el-button size="mini" type="danger">删除</el-button>
</template>
</el-table-column>
</el-table>
<!-- 角色列表 end -->
</el-card>
</el-col>
<el-col :span="8" style="padding-left: 10px;">
<el-card class="perm-list-card">
<div slot="header" class="clearfix">
<span>权限展示</span>
<el-button type="primary" style="float: right; padding: 3px 0">授权</el-button>
</div>
<!-- 权限展示 start -->
<!-- 权限展示 end -->
</el-card>
</el-col>
</el-row>
</div>
</template>
<script>
export default {
data() {
return {
roleList: []
}
},
methods: {
async findAllRole() {
// ajax
let { data: baseResult } = await this.$axios.get('/user-service/role')
// 处理
if(baseResult.code == 20000) {
this.roleList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
}
},
mounted() {
// 查询所有的角色
this.findAllRole()
},
}
</script>
<style>
.role-list-card {
height: 100%;
}
.perm-list-card {
height: 100%;
}
</style>6.3.2 核心2：给角色授予权限(菜单)
1）后端：查询所有的权限（含孩子）
- 方式1：在controller中排序查询所有，然后使用Map进行缓存处理，将所有权限拼凑成父子关系。
- 方式2：使用mapper注解版
- 编写PermMapper：查询指定父id的所有权限，需配置关联项（当前权限的所有的孩子）
- 编写service：查询所有
- 编写controller：查询所有
- 编写PermMapper：查询指定父id的所有权限，需配置关联项（当前权限的所有的孩子） package com.czxy.classes.mapper; import com.baomidou.mybatisplus.core.mapper.BaseMapper; import com.czxy.sys.SysPermission; import org.apache.ibatis.annotations.*; import java.util.List; /** * @author 桐叔 * @email liangtong@itcast.cn * @description */ @Mapper public interface SysPermissionMapper extends BaseMapper<SysPermission> { /** * 通过父id查询所有的权限 * @author 桐叔 * @email liangtong@itcast.cn * @return */ @Select("SELECT * FROM sys_permission WHERE parent_id = #{parentId}") @Results({ @Result(property = "id", column = "id"), @Result(property = "permName", column = "permName"), @Result(property = "parentId", column = "parent_id"), @Result(property = "path", column = "path"), @Result(property = "children", many = @Many(select = "com.czxy.classes.mapper.SysPermissionMapper.findAllByParentId"), column = "id") }) public List<SysPermission> findAllByParentId(@Param("parentId") Integer parentId) ; }
- 编写service：查询所有
- 接口 @Service @Transactional public interface SysPermissionService extends IService<SysPermission> { public List<SysPermission> findAllByParentId(Integer parentId) ; }
- 实现类 package com.czxy.classes.service.impl; import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import com.czxy.classes.mapper.SysPermissionMapper; import com.czxy.classes.service.SysPermissionService; import com.czxy.sys.SysPermission; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import java.util.List; /** * @author 桐叔 * @email liangtong@itcast.cn * @description */ @Service @Transactional public class SysPermissionServiceImpl extends ServiceImpl<SysPermissionMapper, SysPermission> implements SysPermissionService { @Override public List<SysPermission> findAllByParentId(Integer parentId) { return baseMapper.findAllByParentId(parentId); } }
- 编写controller：查询所有 package com.czxy.classes.controller; import com.czxy.classes.service.SysPermissionService; import com.czxy.sys.SysPermission; import com.czxy.vo.BaseResult; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import javax.annotation.Resource; import java.util.List; /** * @author 桐叔 * @email liangtong@itcast.cn * @description */ @RestController @RequestMapping("/perm") public class SysPermissionController { @Resource private SysPermissionService sysPermissionService; /** * 查询所有，含孩子 * @author 桐叔 * @email liangtong@itcast.cn * @return */ @GetMapping("/parent/{parentId}") public BaseResult findAllByParentId(@PathVariable("parentId") Integer parentId) { // 查询 List<SysPermission> list = sysPermissionService.findAllByParentId(parentId); return BaseResult.ok("查询成功", list); } }
2）后端：查询指定角色的所有的权限
- 提交数据：roleId = 1
- 获得数据：[ {roleId: 1, permId: 1}, {roleId: 1, permId: 2}, ...] --> [1,2,3,4]
package com.czxy.classes.controller;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.czxy.classes.service.SysRolePermissionService;
import com.czxy.sys.SysRolePermission;
import com.czxy.vo.BaseResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
import java.util.List;
import java.util.stream.Collectors;
/**
* @author 桐叔
* @email liangtong@itcast.cn
* @description
*/
@RestController
@RequestMapping("/rolePerm")
public class SysRolePermissionController {
@Resource
private SysRolePermissionService sysRolePermissionService;
@GetMapping("/role/{roleId}")
public BaseResult findAllByRoleId(@PathVariable("roleId") Integer roleId) {
//1 条件 roleId = 1
QueryWrapper<SysRolePermission> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("role_id", roleId);
//2 查询所有- 角色权限对象
List<SysRolePermission> list = sysRolePermissionService.list(queryWrapper);
//3 处理数据，只需要权限id
List<Integer> roleIdList = list.stream().map(sysRolePermission -> sysRolePermission.getPermId()).collect(Collectors.toList());
//4 返回
return BaseResult.ok("查询成功", roleIdList);
}
}
3）前端：展示所有的权限
- 编写变量、发送ajax查询、页面加载成功时调用
- 使用tree进行展示
<template>
<div>
<el-row>
<el-col :span="16">
<el-card class="role-list-card">
<div slot="header" class="clearfix">
<span>角色列表</span>
</div>
<!-- 角色列表 start -->
<el-table
:data="roleList"
stripe
style="width: 100%">
<el-table-column
prop="id"
label="角色ID"
fixed
width="80">
</el-table-column>
<el-table-column
prop="roleName"
label="角色名称"
fixed
width="180">
</el-table-column>
<el-table-column
prop="roleDesc"
label="角色描述"
width="200">
</el-table-column>
<el-table-column
label="操作"
fixed="right">
<template slot-scope="scope">
<el-button size="mini">编辑</el-button>
<el-button size="mini" type="danger">删除</el-button>
</template>
</el-table-column>
</el-table>
<!-- 角色列表 end -->
</el-card>
</el-col>
<el-col :span="8" style="padding-left: 10px;">
<el-card class="perm-list-card">
<div slot="header" class="clearfix">
<span>权限展示</span>
<el-button type="primary" style="float: right; padding: 3px 0">授权</el-button>
</div>
<!-- 权限展示 start -->
<el-tree
:data="permList"
show-checkbox
default-expand-all
node-key="id"
ref="permTree"
highlight-current
:props="defaultProps">
</el-tree>
<!-- 权限展示 end -->
</el-card>
</el-col>
</el-row>
</div>
</template>
<script>
export default {
data() {
return {
roleList: [], //角色列表
permList: [], //权限列表
defaultProps: { //tree提供的数据 与 所需数据 对应关系
children: 'children',
label: 'permName'
}
}
},
methods: {
async findAllRole() {
// ajax
let { data: baseResult } = await this.$axios.get('/user-service/role')
// 处理
if(baseResult.code == 20000) {
this.roleList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
},
async findAllPerm(parentId) {
// ajax
let { data: baseResult } = await this.$axios.get(`/user-service/perm/parent/${parentId}`)
// 处理
if(baseResult.code == 20000) {
this.permList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
}
},
mounted() {
// 查询所有的角色
this.findAllRole()
// 查询所有的一级权限
this.findAllPerm(0)
},
}
</script>
<style>
.role-list-card {
height: 100%;
}
.perm-list-card {
height: 100%;
}
</style>4）前端：回显指定角色的权限
- 表格行的点击，并获得当前行的数据
- 查询当前角色对应的所有选线，并回显到tree中
async findAllPermByRoleId(row, column, event) {
// ajax 查询 /user-service/rolePerm/role/1
let { data: baseResult } = await this.$axios.get(`/user-service/rolePerm/role/${row.id}`)
// 处理
if(baseResult.code == 20000) {
// 查询成功，将查询的结果填充到右侧tree中
this.$refs.permTree.setCheckedKeys(baseResult.data);
} else {
this.$message.error(baseResult.message)
}
}<template>
<div>
<el-row>
<el-col :span="16">
<el-card class="role-list-card">
<div slot="header" class="clearfix">
<span>角色列表</span>
</div>
<!-- 角色列表 start -->
<el-table
:data="roleList"
stripe
@row-click="findAllPermByRoleId"
style="width: 100%">
<el-table-column
prop="id"
label="角色ID"
fixed
width="80">
</el-table-column>
<el-table-column
prop="roleName"
label="角色名称"
fixed
width="180">
</el-table-column>
<el-table-column
prop="roleDesc"
label="角色描述"
width="200">
</el-table-column>
<el-table-column
label="操作"
fixed="right">
<template slot-scope="scope">
<el-button size="mini">编辑</el-button>
<el-button size="mini" type="danger">删除</el-button>
</template>
</el-table-column>
</el-table>
<!-- 角色列表 end -->
</el-card>
</el-col>
<el-col :span="8" style="padding-left: 10px;">
<el-card class="perm-list-card">
<div slot="header" class="clearfix">
<span>权限展示</span>
<el-button type="primary" style="float: right; padding: 3px 0">授权</el-button>
</div>
<!-- 权限展示 start -->
<el-tree
:data="permList"
show-checkbox
default-expand-all
node-key="id"
ref="permTree"
highlight-current
:props="defaultProps">
</el-tree>
<!-- 权限展示 end -->
</el-card>
</el-col>
</el-row>
</div>
</template>
<script>
export default {
data() {
return {
roleList: [], //角色列表
permList: [], //权限列表
defaultProps: { //tree提供的数据 与 所需数据 对应关系
children: 'children',
label: 'permName'
}
}
},
methods: {
async findAllRole() {
// ajax
let { data: baseResult } = await this.$axios.get('/user-service/role')
// 处理
if(baseResult.code == 20000) {
this.roleList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
},
async findAllPerm(parentId) {
// ajax
let { data: baseResult } = await this.$axios.get(`/user-service/perm/parent/${parentId}`)
// 处理
if(baseResult.code == 20000) {
this.permList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
},
async findAllPermByRoleId(row, column, event) {
// ajax 查询 /user-service/rolePerm/role/1
let { data: baseResult } = await this.$axios.get(`/user-service/rolePerm/role/${row.id}`)
// 处理
if(baseResult.code == 20000) {
// 查询成功，将查询的结果填充到右侧tree中
this.$refs.permTree.setCheckedKeys(baseResult.data);
} else {
this.$message.error(baseResult.message)
}
}
},
mounted() {
// 查询所有的角色
this.findAllRole()
// 查询所有的一级权限
this.findAllPerm(0)
},
}
</script>
<style>
.role-list-card {
height: 100%;
}
.perm-list-card {
height: 100%;
}
</style>5）前端：提交授权表单
<template>
<div>
<el-row>
<el-col :span="16">
<el-card class="role-list-card">
<div slot="header" class="clearfix">
<span>角色列表</span>
</div>
<!-- 角色列表 start -->
<el-table
:data="roleList"
stripe
@row-click="findAllPermByRoleId"
style="width: 100%">
<el-table-column
prop="id"
label="角色ID"
fixed
width="80">
</el-table-column>
<el-table-column
prop="roleName"
label="角色名称"
fixed
width="180">
</el-table-column>
<el-table-column
prop="roleDesc"
label="角色描述"
width="200">
</el-table-column>
<el-table-column
label="操作"
fixed="right">
<template slot-scope="scope">
<el-button size="mini">编辑</el-button>
<el-button size="mini" type="danger">删除</el-button>
</template>
</el-table-column>
</el-table>
<!-- 角色列表 end -->
</el-card>
</el-col>
<el-col :span="8" style="padding-left: 10px;">
<el-card class="perm-list-card">
<div slot="header" class="clearfix">
<span>权限展示</span>
<el-button type="primary" @click="addPermWithRoleId" style="float: right; padding: 3px 0">授权</el-button>
</div>
<!-- 权限展示 start -->
<el-tree
:data="permList"
show-checkbox
default-expand-all
node-key="id"
ref="permTree"
highlight-current
:props="defaultProps">
</el-tree>
<!-- 权限展示 end -->
</el-card>
</el-col>
</el-row>
</div>
</template>
<script>
export default {
data() {
return {
roleList: [], //角色列表
permList: [], //权限列表
defaultProps: { //tree提供的数据 与 所需数据 对应关系
children: 'children',
label: 'permName'
},
role: {
id: '', //角色id
permIds: [] //所选权限的id
}
}
},
methods: {
async findAllRole() {
// ajax
let { data: baseResult } = await this.$axios.get('/user-service/role')
// 处理
if(baseResult.code == 20000) {
this.roleList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
},
async findAllPerm(parentId) {
// ajax
let { data: baseResult } = await this.$axios.get(`/user-service/perm/parent/${parentId}`)
// 处理
if(baseResult.code == 20000) {
this.permList = baseResult.data
} else {
this.$message.error(baseResult.message)
}
},
async findAllPermByRoleId(row, column, event) {
// ajax 查询 /user-service/rolePerm/role/1
let { data: baseResult } = await this.$axios.get(`/user-service/rolePerm/role/${row.id}`)
// 处理
if(baseResult.code == 20000) {
// 查询成功，将查询的结果填充到右侧tree中
this.$refs.permTree.setCheckedKeys(baseResult.data);
// 记录已有数据
this.role.id = row.id
this.role.permIds = baseResult.data
console.info(this.role)
} else {
this.$message.error(baseResult.message)
}
},
async addPermWithRoleId() {
// 判断是否选择角色
if(! this.role.id) {
this.$message.warning('请先选择角色')
return;
}
// 更新所选权限
this.role.permIds = this.$refs.permTree.getCheckedKeys()
// ajax 提交
let { data: baseResult } = await this.$axios.post('/user-service/rolePerm/addPerm', this.role)
// 提示
if(baseResult.code == 20000) {
this.$message.success(baseResult.message)
} else {
this.$message.error(baseResult.message)
}
}
},
mounted() {
// 查询所有的角色
this.findAllRole()
// 查询所有的一级权限
this.findAllPerm(0)
},
}
</script>
<style>
.role-list-card {
height: 100%;
}
.perm-list-card {
height: 100%;
}
</style>6）后端：授权
- 编写controller
- 编写service
- 编写controller
@PostMapping("/addPerm") public BaseResult addPermWithRoleId(@RequestBody SysRole sysRole) { try { // 添加权限 sysRolePermissionService.addPermWithRoleId(sysRole); // 提示 return BaseResult.ok("授权成功"); } catch (Exception e) { return BaseResult.error("授权失败"); } }
- 编写service
- 接口 @Service @Transactional public interface SysRolePermissionService extends IService<SysRolePermission> { void addPermWithRoleId(SysRole sysRole); }
- 实现类 package com.czxy.classes.service.impl; import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; import com.czxy.classes.mapper.SysRolePermissionMapper; import com.czxy.classes.service.SysRolePermissionService; import com.czxy.sys.SysRole; import com.czxy.sys.SysRolePermission; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; /** * @author 桐叔 * @email liangtong@itcast.cn * @description */ @Service @Transactional public class SysRolePermissionServiceImpl extends ServiceImpl<SysRolePermissionMapper, SysRolePermission> implements SysRolePermissionService { @Override public void addPermWithRoleId(SysRole sysRole) { // 1 删除 QueryWrapper<SysRolePermission> queryWrapper = new QueryWrapper<>(); queryWrapper.eq("role_id", sysRole.getId()); baseMapper.delete(queryWrapper); // 2 添加 for (Integer permId : sysRole.getPermIds()) { SysRolePermission sysRolePermission = new SysRolePermission(sysRole.getId(), permId); baseMapper.insert(sysRolePermission); } } }
6.3.3 添加角色
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原始发表：2022-10-21，如有侵权请联系 cloudcommunity@tencent.com 删除
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