SPA项目开发之动态树+数据表格+分页

1. 动态生成NavMenu导航菜单(只支持2级菜单)
　　1.1 结构

      <el-menu key="" index="">
        <el-submenu>
          <template slot="title">
            <i class="el-icon-location"></i>
            <span>导航一</span>
          </template>
          <template slot="title">分组一</template>
          <el-menu-item route="">

2.2 vue+element的el-menu组件实现路由跳转及当前项的设置

    <el-menu router :default-active="$route.path">

　　注1：要实现路由跳转，先要在el-menu标签上添加router属性，然后只要在每个el-menu-item标签内
　　　　  的index属性设置一下url即可实现点击el-menu-item实现路由跳转。
　　注2：导航当前项，在el-menu标签中绑定 :default-active="$route.path",注意是绑定属性，

　　　　  不要忘了加“:”,当$route.path等于el-menu-item标签中的index属性值时则该item为当前项。

　　注3：后台t_tree_node表有几个节点的url为空，则会导致几个节点样式会一致

左侧动态树 LeftNav.vue

<template>
  <el-menu router :default-active="$route.path" class="el-menu-vertical-demo" background-color="#334157" text-color="#fff"
    active-text-color="#ffd04b" :collapse="collapsed">
    <!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$route.path" unique-opened class="el-menu-vertical-demo" background-color="#334157" text-color="#fff" active-text-color="#ffd04b"> -->
    <div class="logobox">
      <img class="logoimg" src="../assets/img/logo.png" alt="">
    </div>
    <!-- 注意：index是必填的属性 1.index可以看成ID，也就是说它是惟一的 2.它代表着路由的跳转路径-->
    <el-submenu :key="'id_'+m.treeNodeId" :index="'id_'+m.treeNodeId" v-for="m in menus">
      <template slot="title">
        <i :class="m.icon"></i>
        <span>{{m.treeNodeName}}</span>
      </template>
      <el-menu-item :key="'id_'+m2.treeNodeId" :index="m2.url" v-for="m2 in m.children">
        <template slot="title">
          <i :class="m2.icon"></i>
          <span>{{m2.treeNodeName}}</span>
        </template>
      </el-menu-item>
    </el-submenu>

  </el-menu>
</template>
<script>
  export default {
    data() {
      return {
        collapsed: false,
        menus: []
      }
    },
    created() {
      this.$root.Bus.$on("collapsed-side", (v) => {
        this.collapsed = v
      });
      let url = this.axios.urls.SYSTEM_MENU_TREE;
      this.axios.post(url, {}).then((response) => {
        console.log(response);
        this.menus=response.data.result;
      }).catch(function(error) {
        console.log(error);
      });
    }
  }
</script>
<style>
  .el-menu-vertical-demo:not(.el-menu--collapse) {
     240px;
    min-height: 400px;
  }

  .el-menu-vertical-demo:not(.el-menu--collapse) {
    border: none;
    text-align: left;
  }

  .el-menu-item-group__title {
    padding: 0px;
  }

  .el-menu-bg {
    background-color: #1f2d3d !important;
  }

  .el-menu {
    border: none;
  }

  .logobox {
    height: 40px;
    line-height: 40px;
    color: #9d9d9d;
    font-size: 20px;
    text-align: center;
    padding: 20px 0px;
  }

  .logoimg {
    height: 40px;
  }
</style>

效果：

2.3 数据表格

    <el-table size="small" :data="listData" style=" 100%;" border max-height="550" element-loading-text="拼命加载中">
      <el-table-column sortable prop="id" label="ID" width="300"></el-table-column>
      <el-table-column sortable prop="title" label="文章标题" width="300"></el-table-column>
      <el-table-column sortable prop="body" label="文章内容" width="300"></el-table-column>
    </el-table>

2.4分页条

 <el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
　　 :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="formInline.rows" layout="total, sizes, prev, pager, next, jumper"
　　 :total="pageBean.total">
 </el-pagination>

数据表格+分页 Articles.vue

<template>
  <div>
    <!-- 搜索筛选-->
    <el-form :inline="true" :model="formInline" class="user-search">
      <el-form-item label="搜索:">
        <el-input size="small" v-model="formInline.title" placeholder="输入文章标题"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button size="small" type="primary" icon="el-icon-search" @click="search">搜索</el-button>
      </el-form-item>
    </el-form>
    <!-- 列表-->
    <el-table size="small" :data="listData" style=" 100%;" border max-height="550" element-loading-text="拼命加载中">
      <el-table-column sortable prop="id" label="ID" width="300"></el-table-column>
      <el-table-column sortable prop="title" label="文章标题" width="300"></el-table-column>
      <el-table-column sortable prop="body" label="文章内容" width="300"></el-table-column>
    </el-table>
    <!-- 分页条 -->
    <el-pagination style="margin-top: 20px;" @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page="formInline.page" :page-sizes="[10, 20, 30, 50]" :page-size="formInline.rows" layout="total, sizes, prev, pager, next, jumper"
      :total="pageBean.total">
    </el-pagination>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        listData: [],
        pageBean: {
          total: 0
        },
        formInline: {
          title: '',
          page: 1,
          rows: 10,
          total: 0
        }
      }
    },
    methods: {
      search() {
        this.doSearch(this.formInline);
      },
      doSearch(params) {
        let url = this.axios.urls.SYSTEM_ARTICLE_LIST;
        this.axios.post(url, params).then((response) => {
          console.log(response);
          this.listData = response.data.result;
          this.pageBean = response.data.pageBean;
        }).catch(function(error) {
          console.log(error);
        });
      },
      handleSizeChange(rows) {
        console.log('页码大小发生改变的时候触发！！！' + rows)
        this.formInline.page = 1;
        this.formInline.rows = rows;
        this.search();
      },
      handleCurrentChange(page) {
        console.log('当前页页码发生改变的时候触发！！！' + page)
        this.formInline.page = page;
        this.search();
      }
    },
    created() {
      this.doSearch({});
    }
  }
</script>

<style>

</style>

效果：