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<template>
  <el-menu  router :default-active="$route.path" default-active="2" class="el-menu-vertical-demo" background-color="#334157" text-color="#fff"
    active-text-color="#ffd04b" :collapse="collapsed">
    <!-- <el-menu default-active="2" :collapse="collapsed" collapse-transition router :default-active="$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>
    <el-submenu v-for="m in menus" :index="'idx'+m.id" :key="'key'+m.id">
      <template slot="title">
        <i class="m.icon"></i>
        <span>{{m.text}}</span>
      </template>
      <el-menu-item v-for="m2 in m.modules" :index="m2.url" :key="'key'+m2.id">
        <i class="m2.icon"></i>
        <span>{{m2.text}}</span>
      </el-menu-item>
    </el-submenu>
  </el-menu>
</template>
<script>
  // 从axios中导出数据☞
  export default {
    data() {
      return {
        // 展开
        collapsed: false,
        // 保存了左侧值
        menus: []
      }
    },
    created() {
      this.$root.bus.$on('shrink', t => {
        this.collapsed = t;
      });
      // 获取到左侧菜单的url
      let url = this.axios.urls.SYSTEM_MENUS;
      // 参数传递可以不传
      this.axios.get(url, {}).then(r => {
        this.menus = r.data.rows;
      }).catch(e => {
      });
    }
  }
</script>
<style>
  .el-menu-vertical-demo:not(.el-menu--collapse) {
    width: 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>

router :default-active="$route.path"

import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import AppMain from '@/components/AppMain'
import LeftNav from '@/components/LeftNav'
import TopNav from '@/components/TopNav'
import Login from '@/views/Login'
import Register from '@/views/Register'
import AddBook from '@/views/book/AddBook'
import BookList from '@/views/book/BookList'
Vue.use(Router)
export default new Router({
  routes: [{
      path: '/',
      name: 'Login',
      component: Login
    },
    {
      path: '/Register',
      name: 'Register',
      component: Register
    },
    {
      path: '/HelloWorld',
      name: 'HelloWorld',
      component: HelloWorld
    },
    {
      path: '/AppMain',
      name: 'AppMain',
      component: AppMain,
      children:[{
        path: '/TopNav',
        name: 'TopNav',
        component: TopNav
      }, {
        path: '/LeftNav',
        name: 'LeftNav',
        component: LeftNav
      },
      {
        path: '/book/AddBook',
        name: 'AddBook',
        component: AddBook
      }, {
        path: '/book/BookList',
        name: 'BookList',
        component: BookList
      }]
    }
  ]
})

/**
 * 对后台请求的地址的封装，URL格式如下：
 * 模块名_实体名_操作
 */
export default {
  'SERVER': 'http://localhost:8080', //服务器
  'SYSTEM_USER_DOLOGIN': '/user/userLogin', //登陆
  'SYSTEM_USER_DOREG': '/user/Register', //注册
  'SYSTEM_MENUS': '/module/queryRootNode', //左侧菜单树
  'BOOK_LIST': '/book/queryBookPager', //书籍列表
  'getFullPath': k => { //获得请求的完整地址，用于mockjs测试时使用
    return this.SERVER + this[k];
  }
}

<template>
  <div class="books" style="padding: 20px;">
    <!-- 搜索框 -->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item label="书籍名称">
        <el-input size="small" v-model="bookname" placeholder="书籍名称"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button size="small" type="primary" @click="onSubmit">查询</el-button>
      </el-form-item>
    </el-form>
    <!-- 数据表格 -->
    <template>
      <el-table :data="tableData" border style="width: 100%">
        <el-table-column align="center" type="selection" min-width="1">
        </el-table-column>
        <el-table-column sortable prop="id" label="编号ID" min-width="2">
        </el-table-column>
        <el-table-column sortable prop="bookname" label="书籍名称" min-width="2">
        </el-table-column>
        <el-table-column sortable prop="price" label="书籍价格" min-width="2">
        </el-table-column>
        <el-table-column sortable prop="booktype" label="书籍类别" min-width="2">
        </el-table-column>
      </el-table>
    </template>
    <!-- 分页 -->
    <div class="block">
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="page"
        :page-sizes="[10, 20, 30, 40]" :page-size="rows" layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </div>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        bookname: '',
        tableData: [],
        page: 1,
        rows: 10,
        total: 0
      }
    },
    methods: {
      // 当前页大小
      handleSizeChange(r) {
        let params = {
          bookname: this.bookname,
          rows: r,
          page: this.page
        }
        this.query(params);
        // 当前页码
      },
      handleCurrentChange(p) {
        let params = {
          bookname: this.bookname,
          rows: this.rows,
          page: p
        }
        this.query(params);
      },
      query(params) {
        let url = this.axios.urls.BOOK_LIST;
        this.axios.get(url, {
          params: params
        }).then(r => {
          console.log(r);
          this.tableData = r.data.rows;
          this.total = r.data.total;
        }).catch(e => {
        });
      },
      onSubmit() {
        let params = {
          bookname: this.bookname
        }
        this.query(params);
      }
    },
    created() {
      this.query({});
    }
  }
</script>
<style>
</style>