调用API完成分配权限的功能

1. 点开对话框时拿到角色id

<el-button @click="showSetRightDialog(scope.row)">分配权限</el-button>
复制代码

// 当前即将分配权限的角色id
roleId: ''
复制代码

async showSetRightDialog(role) {
  this.roleId = role.id
}
复制代码

2. 调用API分配权限

<!-- 内容主体区域 树形控件-->
<el-tree ref="treeRef"></el-tree>
复制代码

<el-button type="primary" @click="allotRights">确 定</el-button>
复制代码

// 点击为角色分配权限
async allotRights() {
  const keys = [
    ...this.$refs.treeRef.getCheckedKeys(),
    ...this.$refs.treeRef.getHalfCheckedKeys()
  ]
  // console.log(keys)
  const idStr = keys.join(',')
  const {
    data: result
  } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: idStr })
  if (result.meta.status !== 200) return this.$message.error('分配权限失败！')
  this.$message.success('分配权限成功')
  this.getRolesList()
  this.setRightDialogVisible = false
}

Roles.vue完整代码

<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 添加角色按钮区域 -->
      <el-row>
        <el-col>
          <el-button type="primary" @click="addDialogVisible = true"
            >添加角色</el-button
          >
        </el-col>
      </el-row>
      <!-- 角色列表区域 -->
      <el-table :data="roleList" border stripe>
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', index1 === 0 ? 'bdtop' : '', 'vcenter']"
              v-for="(item1, index1) in scope.row.children"
              :key="item1.id"
            >
              <!-- 渲染一级权限 -->
              <el-col :span="5">
                <el-tag
                  closable
                  @close="removeRightById(scope.row, item1.id)"
                  >{{ item1.authName }}</el-tag
                >
                <i class="el-icon-caret-right"></i>
              </el-col>
              <!-- 渲染二级、三级权限 -->
              <el-col :span="19">
                <el-row
                  :class="[index2 === 0 ? '' : 'bdtop', 'vcenter']"
                  v-for="(item2, index2) in item1.children"
                  :key="item2.id"
                >
                  <!-- 渲染二级权限 -->
                  <el-col :span="6">
                    <el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row, item2.id)"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <!-- 渲染三级权限 -->
                  <el-col :span="18">
                    <el-tag
                      type="warning"
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row, item3.id)"
                      >{{ item3.authName }}</el-tag
                    >
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
            <!-- <pre>
              {{scope.row}}
            </pre> -->
          </template>
        </el-table-column>
        <!-- 索引列 -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="角色名称" prop="roleName"></el-table-column>
        <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
              >编辑</el-button
            >
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="removeRoleById(scope.row.id)"
              >删除</el-button
            >
            <el-button
              size="mini"
              type="warning"
              icon="el-icon-setting"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 添加角色的对话框 -->
    <el-dialog
      title="添加角色"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="80px"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="addForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="addForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addRole">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog title="修改角色" :visible.sync="editDialogVisible" width="50%">
      <!-- 内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="80px"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="editForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="editForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配权限的对话框 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <!-- 内容主体区域 树形控件-->
      <el-tree
        :data="rightslist"
        :props="treeProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defKeys"
        ref="treeRef"
      ></el-tree>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 所有角色列表数据
      roleList: [],
      addDialogVisible: false,
      addForm: {
        roleName: '',
        roleDesc: ''
      },
      addFormRules: {
        roleName: [
          { required: true, message: '请输入角色名称', trigger: 'blur' }
        ]
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的角色的信息对象
      editForm: {},
      // 控制分配权限对话框显示与隐藏
      setRightDialogVisible: false,
      // 所有权限数据
      rightslist: [],
      // 树形控件的属性绑定对象
      treeProps: {
        children: 'children',
        label: 'authName'
      },
      // 默认选中的节点id值数组
      defKeys: [],
      // 当前即将分配权限的角色id
      roleId: ''
    }
  },
  created() {
    this.getRolesList()
  },
  methods: {
    // 获取所有角色的列表
    async getRolesList() {
      const { data: result } = await this.$http.get('roles')
      if (result.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.roleList = result.data
      console.log(this.roleList)
    },

    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加角色操作
    addRole() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: result } = await this.$http.post('roles', this.addForm)
        if (result.meta.status !== 201) {
          return this.$message.error('添加角色失败！')
        }
        this.$message.success('添加角色成功！')
        this.addDialogVisible = false
        this.getRolesList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      this.editDialogVisible = true
      const { data: result } = await this.$http.get('roles/' + id)
      if (result.meta.status !== 200) {
        return this.$message('查询用户信息失败！')
      }
      this.editForm = result.data
    },
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return
        // 发起修改用户信息的数据请求
        const { data: result } = await this.$http.put(
          'roles/' + this.editForm.roleId,
          { roleName: this.editForm.roleName, roleDesc: this.editForm.roleDesc }
        )
        if (result.meta.status !== 200) {
          return this.$message.error('更新角色失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 重新获取用户列表
        this.getRolesList()
        // 提示修改成功
        this.$message.success('更新角色信息成功')
      })
    },
    // 根据id删除对应的用户信息
    async removeRoleById(id) {
      // 弹框提示用户是否删除数据
      const confirmResult = await this.$confirm(
        '此操作将永久删除该角色，是否继续？',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(error => error)
      // console.log(confirmResult) // 确定：'confirm' 取消：报错:cancel catch之后就是'canel'
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: result } = await this.$http.delete('roles/' + id)
      if (result.meta.status !== 200) {
        return this.$message.error('删除角色失败')
      }
      this.$message.success('删除角色成功')
      this.getRolesList()
    },
    // 根据Id删除对应的权限
    async removeRightById(role, rightId) {
      // 弹框提示用户是否删除数据
      const confirmResult = await this.$confirm(
        '此操作将永久删除该权限，是否继续？',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(error => error)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除')
      }
      // console.log('确认了删除')
      const { data: result } = await this.$http.delete(
        'roles/' + role.id + '/rights/' + rightId
      )
      if (result.meta.status !== 200) {
        return this.$message.error('删除权限失败')
      }
      this.$message.success('删除权限成功')
      // this.getRolesList() // 会重新加载页面，不推荐使用
      role.children = result.data
    },
    // 展示分配权限的对话框
    async showSetRightDialog(role) {
      this.roleId = role.id
      // 获取所有权限数据
      const { data: result } = await this.$http.get('rights/tree')
      if (result.meta.status !== 200) return this.$message.error('获取权限数据失败')
      // 获取到的权限数据保存到rightslist中
      this.rightslist = result.data
      console.log(this.rightslist)
      // 递归获取三级节点的id
      this.getLeafKeys(role, this.defKeys)
      this.setRightDialogVisible = true
    },
    // 通过递归的形式，获取角色下所有三级权限的id，并保存到defKeys数组中
    getLeafKeys(node, arr) {
      // 如果当前节点不包含children属性，则是三级权限节点
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(item => this.getLeafKeys(item, arr))
    },
    // 监听分配权限对话框的关闭事件
    setRightDialogClosed() {
      this.defKeys = []
    },
    // 点击为角色分配权限
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys()
      ]
      // console.log(keys)
      const idStr = keys.join(',')
      const {
        data: result
      } = await this.$http.post(`roles/${this.roleId}/rights`, { rids: idStr })
      if (result.meta.status !== 200) return this.$message.error('分配权限失败！')
      this.$message.success('分配权限成功')
      this.getRolesList()
      this.setRightDialogVisible = false
    }
  }
}
</script>

<style scoped>
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
</style>

渲染分配角色的对话框并请求角色列表数据

<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
>
  <!-- 内容主体区域 -->
  <div>
    <p>当前用户：{{userInfo.username}}</p>
    <p>当前角色：{{userInfo.role_name}}</p>
  </div>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="setRoleDialogVisible = false">确 定</el-button>
  </span>
</el-dialog>
复制代码

<!-- 分配角色按钮 添加消息提示 -->
<el-tooltip>
  <el-button @click="setRole(scope.row)"></el-button>
</el-tooltip>
复制代码

// 控制分配角色对话框显示与隐藏
setRoleDialogVisible: false,
// 需要被分配角色的用户信息
userInfo: {}
// 所有角色的数据列表
rolesList: []
复制代码

// 展示分配角色的对话框
setRole(userInfo) {
  this.userInfo = userInfo
  
  // 在展示对话框之前获取所有角色的列表
  const { data: result } = await this.$http.get('roles')
  if (result.meta.status !== 200) return this.$message.error('获取角色列表失败！')
  this.$message.success('获取角色列表成功！')
  this.rolesList = result.data

  this.setRoleDialogVisible = true
}