实战7 部门查询和新增

package com.cizhu.utils;

import com.cizhu.entity.Department;
import org.springframework.beans.BeanUtils;

import java.nio.file.OpenOption;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

/** * 生成部门树 */
public class DepartmentTree {
    public static List<Department> makeDepartmentTree(List<Department> departmentList,Long pid){
        List<Department> list = new ArrayList<>();
        Optional.ofNullable(departmentList).orElse(new ArrayList<Department>())
                .stream().filter(item->item!=null && item.getPid() == pid)
                .forEach(item->{
                    Department department = new Department();
                    BeanUtils.copyProperties(item,department);
                    List<Department> children = makeDepartmentTree(departmentList,item.getPid());
                    department.setChildren(children);
                    list.add(department);
                });
        return list;
    }
}

1.4 DepartmentService

public interface IDepartmentService extends IService<Department> {
    /**
     * 查询部门列表
     * @param departmentQueryVo
     * @return
     */
    List<Department> findDepartmentList(DepartmentQueryVo departmentQueryVo);
    /**
     * 查询上级部门列表
     *
     * * @return
     *
     */
    List<Department> findParentDepartment();
    /**
     * * 判断部门下是否有子部门
     * * @param id
     * * @return
     * */
    boolean hasChildrenOfDepartment(Long id);
    /**
     * * 判断部门下是否存在用户
     * * @param id
     * * @return
     * */
    boolean hasUserOfDepartment(Long id);

}

1.5 DepartmentServiceImp

?

    @Override
    public boolean hasChildrenOfDepartment(Long id) {
//创建条件构造器对象
        QueryWrapper<Department> queryWrapper = new QueryWrapper<Department>();
        queryWrapper.eq("pid",id);
//如果数量大于0，表示存在
        if(baseMapper.selectCount(queryWrapper)>0){
            return true;
        }
        return false;
    }
    /**
     * 判断部门下是否存在用户
     *
     * @param id
     * @return
     */
    @Override
    public boolean hasUserOfDepartment(Long id) {
//创建条件构造器对象
        QueryWrapper<User> queryWrapper = new QueryWrapper<User>();
        queryWrapper.eq("department_id", id);
//如果数量大于0，表示存在
        if (userMapper.selectCount(queryWrapper) > 0) {
            return true;
        }
        return false;
    }

1.6 DepartmentController

@RestController
@RequestMapping("/api/department")
public class DepartmentController {
    @Resource
    private IDepartmentService departmentService;
    /**
     * 查询部门列表
     * @param departmentQueryVo
     * @return
     */
    @GetMapping("/list")
    public Result list(DepartmentQueryVo departmentQueryVo){
//调用查询部门列表方法
        List<Department> departmentList =
                departmentService.findDepartmentList(departmentQueryVo);
//返回数据
        return Result.ok(departmentList);
    }
    /**
     * 查询上级部门列表
     * @return
     */
    @GetMapping("/parent/list")
    public Result getParentDepartment(){
//调用查询上级部门列表方法
        List<Department> departmentList =
                departmentService.findParentDepartment();
//返回数据
        return Result.ok(departmentList);
    }
    /**
     * 添加部门
     * @param department
     * @return
     */
    @PostMapping("/add")
    public Result add(@RequestBody Department department){
        if(departmentService.save(department)){
            return Result.ok().message("部门添加成功");
        }
        return Result.error().message("部门添加失败");
    }
    /**
     * 修改部门
     * @param department
     * @return
     */
    @PutMapping("/update")
    public Result update(@RequestBody Department department){
        if(departmentService.updateById(department)){
            return Result.ok().message("部门修改成功");
        }
        return Result.error().message("部门修改失败");
    }
    /**
     * 查询某个部门下是否存在子部门
     * @param id
     * @return
     */
    @GetMapping("/check/{id}")
    public Result check(@PathVariable Long id){
//调用查询部门下是否存在子部门的方法
        if(departmentService.hasChildrenOfDepartment(id)){
            return Result.exist().message("该部门下存在子部门，无法删除");
        }
//调用查询部门下是否存在用户的方法
        if(departmentService.hasUserOfDepartment(id)){
            return Result.exist().message("该部门下存在用户，无法删除");
        }
        return Result.ok();
    }
    /**
     * 删除部门
     * @param id
     * @return
     */
    @DeleteMapping("/delete/{id}")
    public Result delete(@PathVariable Long id){
        if(departmentService.removeById(id)){
            return Result.ok().message("部门删除成功");
        }
        return Result.error().message("部门删除失败");
    }
}

2、前端查询部门

2.1 效果图

2.2页面原型代码?

?使用中文语言包注释下面两行代码

// import enLang from 'element-ui/lib/locale/lang/en'// 如果使用中文语言包请默认支持，无需额外引入，请删除该依赖
Vue.use(Element, {
  size: Cookies.get('size') || 'medium', // set element-ui default size
  // locale: enLang // 如果使用中文，无需设置，请删除
})

dashboard显示为首页

?2.3编写前端api脚本

import http from '@/utils/request'

export default{

  /**
   * 查询部门列表
   * @param {*} params 
   * @returns 
   */
  async getDepartmentList(params){
    return await http.get("/api/department/list",params)
  }
}

2.4编写页面组件

<template>
  <el-main>
    <el-form ref="searchForm" label-width="80px" :inline="true" size="small">
      <el-form-item>
        <el-input v-model="searchModel.departmentName" placeholder="请输入部门名称" />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" @click=search>查询</el-button>
        <el-button @click="reset" icon="el-icon-refresh-right">重置</el-button>
        <el-button type="success" @click="add" icon="el-icon-plus">新增</el-button>
      </el-form-item>
    </el-form>
    <el-table :data="tableData" style="width: 100%;margin-bottom: 20px;" row-key="id" border stripe default-expand-all
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }">
      <el-table-column prop="departmentName" label="部门名称">
      </el-table-column>
      <el-table-column prop="parentName" label="所属部门">
      </el-table-column>
      <el-table-column prop="phone" label="部门电话">
      </el-table-column>
      <el-table-column prop="address" label="部门地址">
      </el-table-column>
      <el-table-column label="操作">
        <template slot-scope="scope">
          <el-button size="mini" icon="el-icon-edit-outline" type="primary" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button size="mini" icon="el-icon-delete-solid" type="danger" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
  </el-main>
</template>
<script>

import departmentApi from '@/api/department'
export default {
  name: "department",
  data() {
    return {
      searchModel: {
        departmentName: "",
      },
      tableData: []
    }
  },
  //初始化时调用
  created() {
    //调用查询部门列表
    this.search()
  },
  methods: {
    /**
     * 查询部门列表
     */
    async search() {
      let res = await departmentApi.getDepartmentList(this.searchModel)
      if (res.success) {
        this.tableData = res.data

      }
    }
  }
}
</script>
<style lang="scss" scoped></style>

3、前端新增部门

3.1页面效果

3.2 封装通用窗口组件

?

3.3编写新增部门弹窗代码?

 <!-- 选择所属部门窗口 -->
    <system-dialog :title="parentDialog.title" :visible="parentDialog.visible" :width="parentDialog.width"
      :height="parentDialog.height" @onClose="parentOnClose" @onConfirm="parentOnConfirm">
      <div slot="content">
        <el-tree ref="parentTree" :data="treeList" node-key="id" :props="defaultProps" empty-text="暂无数据"
          :default-expand-all="true" :highlight-current="true" :expand-on-click-node="false"
          @node-click="handleNodeClick">
          <div class="customer-tree-node" slot-scope="{node,data}">
            <!-- 判断当前节点是否有子节点 -->
            <span v-if="data.children.length === 0">
              <i class="el-icon-document"></i>
            </span>
            <span v-else @click="changeIcon(data)">
              <svg-icon v-if="data.open" icon-class="add-s"></svg-icon>
              <svg-icon v-else icon-class="sub-s"></svg-icon>
            </span>
            <span style="margin-left:3px">{{ node.label }}</span>
          </div>
        </el-tree>
      </div>
    </system-dialog>

 methods: {
    /**
    * 选择所属部门取消事件
    */
    parentOnClose() {
      this.parentDialog.visible = false;
    },

    /**
    * 选择所属部门确认事件
    */
    parentOnConfirm() {
      this.parentDialog.visible = false;
    },

    /**
    * 弹窗取消事件
    */
    onClose() {
      //关闭窗口
      this.deptDialog.visible = false;
    },

    /**
    * 弹窗确认事件
    */
    onConfirm() {
      //表单验证
      this.$refs.deptForm.validate(async (valid) => {
        //如果验证通过
        if (valid) {
          let res = null
          // 判断是新增还是修改操作(dept.id是否为空)
          if (this.dept.id === "") {
            // 发送新增部门请求
            res = await departmentApi.addDept(this.dept)
          } else {
            // 发送修改部门请求
            res = await departmentApi.updateDept(this.dept)
          }
          if (res.success) {
            // 提示成功
            this.$message.success(res.message)
            // 刷新数据
            this.search()
            //关闭窗口
            this.deptDialog.visible = false;
          } else {
            this.$message.error(res.message)
          }
        }
      });
    },

    /**
    * 打开添加部门窗口
    */
    openAddWindow() {
      // 清空表单数据
      this.$resetForm("deptForm", this.dept);
      //设置窗口标题
      this.deptDialog.title = "新增部门";
      //显示添加部门窗口
      this.deptDialog.visible = true;
    },

3.4 选择所属部门

 <!-- 添加和编辑部门窗口 -->
    <system-dialog :title="deptDialog.title" :visible="deptDialog.visible" :width="deptDialog.width"
      :height="deptDialog.height" @onClose="onClose" @onConfirm="onConfirm">
      <div slot="content">
        <el-form :model="dept" ref="deptForm" :rules="rules" label-width="80px" :inline="true" size="small">
          <el-form-item label="所属部门" prop="parentName">
            <el-input v-model="dept.parentName" :readonly="true" @click.native="openSelectDeptWindow()"></el-input>
          </el-form-item>
          <el-form-item label="部门名称" prop="departmentName">
            <el-input v-model="dept.departmentName"></el-input>
          </el-form-item>
          <el-form-item label="部门电话">
            <el-input v-model="dept.phone"></el-input>
          </el-form-item>
          <el-form-item label="部门地址">
            <el-input v-model="dept.address"></el-input>
          </el-form-item>
          <el-form-item label="序号">
            <el-input v-model="dept.orderNum"></el-input>
          </el-form-item>
        </el-form>
      </div>
    </system-dialog>
    <!-- 选择所属部门窗口 -->
    <system-dialog :title="parentDialog.title" :visible="parentDialog.visible" :width="parentDialog.width"
      :height="parentDialog.height" @onClose="parentOnClose" @onConfirm="parentOnConfirm">
      <div slot="content">
        <el-tree ref="parentTree" :data="treeList" node-key="id" :props="defaultProps" empty-text="暂无数据"
          :default-expand-all="true" :highlight-current="true" :expand-on-click-node="false"
          @node-click="handleNodeClick">
          <div class="customer-tree-node" slot-scope="{node,data}">
            <!-- 判断当前节点是否有子节点 -->
            <span v-if="data.children.length === 0">
              <i class="el-icon-document"></i>
            </span>
            <span v-else @click="changeIcon(data)">
              <svg-icon v-if="data.open" icon-class="add-s"></svg-icon>
              <svg-icon v-else icon-class="sub-s"></svg-icon>
            </span>
            <span style="margin-left:3px">{{ node.label }}</span>
          </div>
        </el-tree>
      </div>
    </system-dialog>

 // 获取所属部门列表
  async getParentTreeList(){
    return await http.get("/api/department/parent/list")
  },

3.5表单数据快速清空

3.6新增部门?

（1）前端新增部门API

 // 新增部门
  async addDept(params){
    return await http.post("/api/department/add",params)
  },

（2）新增部门表单验证

  /**
    * 弹窗确认事件
    */
    onConfirm() {
      //表单验证
      this.$refs.deptForm.validate(async (valid) => {
        //如果验证通过
        if (valid) {
          let res = null
          // 判断是新增还是修改操作(dept.id是否为空)
          if (this.dept.id === "") {
            // 发送新增部门请求
            res = await departmentApi.addDept(this.dept)
          } else {
            // 发送修改部门请求
            res = await departmentApi.updateDept(this.dept)
          }
          if (res.success) {
            // 提示成功
            this.$message.success(res.message)
            // 刷新数据
            this.search()
            //关闭窗口
            this.deptDialog.visible = false;
          } else {
            this.$message.error(res.message)
          }
        }
      });
    },

文章来源:https://blog.csdn.net/shieryue_2016/article/details/135123819
本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若内容造成侵权/违法违规/事实不符，请联系我的编程经验分享网邮箱：chenni525@qq.com进行投诉反馈，一经查实，立即删除！