vue-element-admin 快速上手

目录

• 简介
• 前序准备
• 前后端分离
• Spring Boot
  • Maven
  • 使用 MyBatis Generator 快速生成 model、mapper、xml
  • application.yml
  • Spring 启动程序
  • web
  • service
  • mapper
• vue-element-admin
  • 新增 api
  • 新增 view

简介

vue-element-admin 是一个后台前端解决方案，它基于 vue 和 element-ui实现。它使用了最新的前端技术栈，内置了 i18n 国际化解决方案，动态路由，权限验证，提炼了典型的业务模型，提供了丰富的功能组件，它可以帮助你快速搭建企业级中后台产品原型。相信不管你的需求是什么，本项目都能帮助到你。

前序准备

你需要在本地安装 node 和 git。本项目技术栈基于 ES2015+、vue、vuex、vue-router 、vue-cli 、axios 和 element-ui，所有的请求数据都使用Mock.js进行模拟，提前了解和学习这些知识会对使用本项目有很大的帮助。

前后端分离

前端 vue-element-admin，后端 Spring Boot、Maven

参考 vue-element-admin complex-table 示例，写一个简单的 Java 后端 增删查改应用

Spring Boot

Maven

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.3.5.RELEASE</version>
    <relativePath/> <!-- lookup parent from repository -->
  </parent>
  <groupId>com.example</groupId>
  <artifactId>vue-element-admin</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>vue-element-admin</name>
  <description>Demo project for Spring Boot</description>

  <properties>
    <java.version>1.8</java.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.mybatis.spring.boot</groupId>
      <artifactId>mybatis-spring-boot-starter</artifactId>
      <version>2.1.3</version>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <scope>runtime</scope>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <scope>runtime</scope>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
      <exclusions>
        <exclusion>
          <groupId>org.junit.vintage</groupId>
          <artifactId>junit-vintage-engine</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper-spring-boot-starter -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper-spring-boot-starter</artifactId>
      <version>1.3.0</version>
    </dependency>

  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>1.4.0</version>
        <configuration>
          <configurationFile>${basedir}/src/main/resources/generatorConfig.xml</configurationFile>
          <overwrite>true</overwrite>
          <verbose>true</verbose>
        </configuration>
        <dependencies>
          <!-- https://mvnrepository.com/artifact/org.mybatis.generator/mybatis-generator-core -->
          <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.4.0</version>
          </dependency>
          <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
          <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.20</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>

</project>

使用 MyBatis Generator 快速生成 model、mapper、xml

generatorConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration PUBLIC
  "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
  "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

<generatorConfiguration>

  <context id="Table2Model" targetRuntime="MyBatis3" defaultModelType="flat">
    <property name="javaFileEncoding" value="UTF-8"/>

    <commentGenerator>
      <!-- <property name="suppressDate" value="true" /> -->
      <property name="addRemarkComments" value="true"/>
    </commentGenerator>

    <jdbcConnection
      connectionURL="jdbc:mysql://localhost:3306/vue_element_admin?serverTimezone=Asia/Shanghai"
      driverClass="com.mysql.cj.jdbc.Driver" password="snapshot" userId="wuyong"/>

    <javaTypeResolver>
      <property name="forceBigDecimals" value="false"/>
    </javaTypeResolver>

    <javaModelGenerator targetPackage="com.example.model" targetProject="src/main/java"/>

    <sqlMapGenerator targetPackage="mapper" targetProject="src/main/resources"/>

    <javaClientGenerator targetPackage="com.example.mapper" targetProject="src/main/java"
      type="XMLMAPPER"/>

    <table schema="vue_element_admin" tableName="article" domainObjectName="Article"
      enableSelectByExample="false" enableDeleteByExample="false"
      enableCountByExample="enableCountByExample" enableUpdateByExample="false"
      selectByExampleQueryId="false">
      <!-- <domainObjectRenamingRule searchString="^Sys" replaceString="" /> -->
      <!-- <columnRenamingRule searchString="^CUST_" replaceString="" /> -->
    </table>
  </context>
</generatorConfiguration>

application.yml

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/vue_element_admin?characterEncoding=UTF-8&serverTimezone=Asia/Shanghai&useSSL=false&useUnicode=true
    username: wuyong
    password: snapshot

  jackson:
    serialization:
      write-dates-as-timestamps: true

server:
  port: 8080
  servlet:
    context-path: /dev-api/vue-element-admin

mybatis:
  mapper-locations: classpath:mapper/*.xml
  type-aliases-package: com.example.model
  configuration:
    map-underscore-to-camel-case: true
    use-generated-keys: true

pagehelper:
  helperDialect: mysql
  reasonable: true
  supportMethodsArguments: true
  params: count=countSql

Spring 启动程序

package com.example;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author wuyong
 */
@MapperScan("com.example.mapper")
@SpringBootApplication
public class VueElementAdminApplication {

  public static void main(String[] args) {
    SpringApplication.run(VueElementAdminApplication.class, args);
  }
}

web

UserController

package com.example.web;

import com.example.model.LoginForm;
import java.util.HashMap;
import java.util.Map;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author wuyong
 */
@Slf4j
@CrossOrigin
@RestController
@RequestMapping("/user")
public class UserController {

  @PostMapping("/login")
  public Map<String, Object> login(@RequestBody LoginForm loginForm) {
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    if ("admin".equals(loginForm.getUsername()) && "111111".equals(loginForm.getPassword())) {
      data.put("token", "admin-token");
      res.put("code", 20000);
      res.put("data", data);
    } else {
      res.put("code", 60204);
      res.put("message", "Account and password are incorrect.");
    }

    return res;
  }

  @GetMapping("/info")
  public Map<String, Object> info(String token) {
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    String[] roles = {"admin"};
    String introduction = "I am a super administrator";
    String avatar = "https://wpimg.wallstcn.com/f778738c-e4f8-4870-b634-56703b4acafe.gif";
    String name = "Super Admin";

    if ("admin-token".equals(token)) {
      data.put("roles", roles);
      data.put("introduction", introduction);
      data.put("avatar", avatar);
      data.put("name", name);
      res.put("code", 20000);
      res.put("data", data);
    } else {
      res.put("code", 50008);
      res.put("message", "Login failed, unable to get user details.");
    }

    return res;
  }

  @PostMapping("/logout")
  public Map<String, Object> logout() {
    Map<String, Object> res = new HashMap<>();

    res.put("code", 20000);
    res.put("data", "success");

    return res;
  }
}

ArticleController

package com.example.web;

import com.example.mapper.ArticleMapper;
import com.example.model.Article;
import com.example.service.ArticleService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author wuyong
 */
@Slf4j
@CrossOrigin
@RestController
@RequestMapping("/article")
public class ArticleController {

  @Autowired private ArticleService articleService;
  @Autowired private ArticleMapper articleMapper;

  @GetMapping("/list")
  public Map<String, Object> fetchList(Integer page, Integer limit, String title, String sort) {
    log.info("page:{}, limit:{}, title:{}, sort:{}", page, limit, title, sort);
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    PageHelper.startPage(page, limit);
    if ("-id".equals(sort)) {
      PageHelper.orderBy("id desc");
    }

    List<Article> articleList;
    if (title == null) {
      articleList = articleMapper.selectAll();
    } else {
      articleList = articleMapper.searchKeyword(title);
    }
    PageInfo pageInfo = new PageInfo(articleList);
    long total = pageInfo.getTotal();

    data.put("total", total);
    data.put("items", articleList);
    res.put("code", 20000);
    res.put("data", data);

    return res;
  }

  @GetMapping("/detail")
  public Map<String, Object> fetchArticle(Integer id) {
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    Article article = articleMapper.selectByPrimaryKey(id);
    data.put("article", article);
    res.put("code", 20000);
    res.put("data", article);

    return res;
  }

  @PostMapping("/create")
  public Map<String, Object> createArticle(@RequestBody Article article) {
    log.info("{}", article);
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    int result = articleMapper.insertSelective(article);
    if (result > 0) {
      res.put("code", 20000);
      res.put("data", "success");
    }

    return res;
  }

  @PostMapping("/update")
  public Map<String, Object> updateArticle(@RequestBody Article article) {
    log.info("{}", article);
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    int result = articleMapper.updateByPrimaryKey(article);
    if (result > 0) {
      res.put("code", 20000);
      res.put("data", "success");
    }

    return res;
  }

  @PostMapping("/delete")
  public Map<String, Object> deleteArticle(@RequestBody Article article) {
    log.info("{}", article);
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    int result = articleMapper.updateByPrimaryKey(article);
    if (result > 0) {
      res.put("code", 20000);
      res.put("data", "success");
    }

    return res;
  }

  @PostMapping("/modifystatus")
  public Map<String, Object> modifyStatus(@RequestBody Article article) {
    log.info("{}", article);
    Map<String, Object> res = new HashMap<>();
    Map<String, Object> data = new HashMap<>();

    int result = articleMapper.updateByPrimaryKey(article);
    if (result > 0) {
      res.put("code", 20000);
      res.put("data", "success");
    }

    return res;
  }
}

service

ArticleService

package com.example.service;

import org.springframework.stereotype.Service;

/**
 * @author wuyong
 */
@Service
public class ArticleService {}

mapper

ArticleMapper.java

List<Article> selectAll();

List<Article> searchKeyword(String title);

ArticleMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.example.mapper.ArticleMapper">

  ...

  <select id="selectAll" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List"/>
    from article
  </select>

  <select id="searchKeyword" resultMap="BaseResultMap">
    select
    <include refid="Base_Column_List"/>
    from article
    where title like concat('%',#{title},'%')
  </select>
</mapper>

vue-element-admin

新增 api

article.js

import request from '@/utils/request'

export function fetchList(query) {
  return request({
    url: '/vue-element-admin/article/list',
    method: 'get',
    params: query
  })
}

export function fetchArticle(id) {
  return request({
    url: '/vue-element-admin/article/detail',
    method: 'get',
    params: { id }
  })
}

export function createArticle(data) {
  return request({
    url: '/vue-element-admin/article/create',
    method: 'post',
    data
  })
}

export function updateArticle(data) {
  return request({
    url: '/vue-element-admin/article/update',
    method: 'post',
    data
  })
}

export function deleteArticle(data) {
  return request({
    url: '/vue-element-admin/article/delete',
    method: 'post',
    data
  })
}

export function modifyStatus(data) {
  return request({
    url: '/vue-element-admin/article/modifystatus',
    method: 'post',
    data
  })
}

新增 view

<template>
  <div class="app-container">
    <div class="filter-container">
      <el-input v-model="listQuery.title" placeholder="Title" style="width: 200px;" class="filter-item" @keyup.enter.native="handleFilter" />
      <!-- <el-select v-model="listQuery.importance" placeholder="Imp" clearable style="width: 90px" class="filter-item">
        <el-option v-for="item in importanceOptions" :key="item" :label="item" :value="item" />
      </el-select> -->
      <!-- <el-select v-model="listQuery.type" placeholder="Type" clearable class="filter-item" style="width: 130px">
        <el-option v-for="item in calendarTypeOptions" :key="item.key" :label="item.display_name+'('+item.key+')'" :value="item.key" />
      </el-select> -->
      <el-select v-model="listQuery.sort" style="width: 140px" class="filter-item" @change="handleFilter">
        <el-option v-for="item in sortOptions" :key="item.key" :label="item.label" :value="item.key" />
      </el-select>
      <el-button v-waves class="filter-item" type="primary" icon="el-icon-search" @click="handleFilter">
        Search
      </el-button>
      <el-button class="filter-item" style="margin-left: 10px;" type="primary" icon="el-icon-edit" @click="handleCreate">
        Add
      </el-button>
      <el-button v-waves :loading="downloadLoading" class="filter-item" type="primary" icon="el-icon-download" @click="handleDownload">
        Export
      </el-button>
      <el-checkbox v-model="showReviewer" class="filter-item" style="margin-left:15px;" @change="tableKey=tableKey+1">
        reviewer
      </el-checkbox>
    </div>

    <el-table
      :key="tableKey"
      v-loading="listLoading"
      :data="list"
      border
      fit
      highlight-current-row
      style="width: 100%;"
      @sort-change="sortChange"
    >
      <el-table-column label="ID" prop="id" sortable="custom" align="center" width="80" :class-name="getSortClass('id')">
        <template slot-scope="{row}">
          <span>{{ row.id }}</span>
        </template>
      </el-table-column>
      <el-table-column label="Date" width="150px" align="center">
        <template slot-scope="{row}">
          <span>{{ row.timestamp | parseTime('{y}-{m}-{d} {h}:{i}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="Title" min-width="150px">
        <template slot-scope="{row}">
          <span class="link-type" @click="handleUpdate(row)">{{ row.title }}</span>
          <!-- <el-tag>{{ row.type | typeFilter }}</el-tag> -->
        </template>
      </el-table-column>
      <el-table-column label="Author" width="110px" align="center">
        <template slot-scope="{row}">
          <span>{{ row.author }}</span>
        </template>
      </el-table-column>
      <el-table-column v-if="showReviewer" label="Reviewer" width="110px" align="center">
        <template slot-scope="{row}">
          <span style="color:red;">{{ row.reviewer }}</span>
        </template>
      </el-table-column>
      <!-- <el-table-column label="Imp" width="80px">
        <template slot-scope="{row}">
          <svg-icon v-for="n in + row.importance" :key="n" icon-class="star" class="meta-item__icon" />
        </template>
      </el-table-column> -->
      <!-- <el-table-column label="Readings" align="center" width="95">
        <template slot-scope="{row}">
          <span v-if="row.pageviews" class="link-type" @click="handleFetchPv(row.pageviews)">{{ row.pageviews }}</span>
          <span v-else>0</span>
        </template>
      </el-table-column> -->
      <el-table-column label="Status" class-name="status-col" width="100">
        <template slot-scope="{row}">
          <el-tag :type="row.status | statusFilter">
            {{ row.status }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column label="Actions" align="center" width="230" class-name="small-padding fixed-width">
        <template slot-scope="{row,$index}">
          <el-button type="primary" size="mini" @click="handleUpdate(row)">
            Edit
          </el-button>
          <el-button v-if="row.status!='published'" size="mini" type="success" @click="handleModifyStatus(row,'published')">
            Publish
          </el-button>
          <el-button v-if="row.status!='draft'" size="mini" @click="handleModifyStatus(row,'draft')">
            Draft
          </el-button>
          <el-button v-if="row.status!='deleted'" size="mini" type="danger" @click="handleDelete(row,$index)">
            Delete
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" :page.sync="listQuery.page" :limit.sync="listQuery.limit" @pagination="getList" />

    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form ref="dataForm" :rules="rules" :model="temp" label-position="left" label-width="70px" style="width: 400px; margin-left:50px;">
        <!-- <el-form-item label="Type" prop="type">
          <el-select v-model="temp.type" class="filter-item" placeholder="Please select">
            <el-option v-for="item in calendarTypeOptions" :key="item.key" :label="item.display_name" :value="item.key" />
          </el-select>
        </el-form-item> -->
        <el-form-item label="Date" prop="timestamp">
          <el-date-picker v-model="temp.timestamp" type="datetime" placeholder="Please pick a date" />
        </el-form-item>
        <el-form-item label="Title" prop="title">
          <el-input v-model="temp.title" />
        </el-form-item>
        <el-form-item label="Status">
          <el-select v-model="temp.status" class="filter-item" placeholder="Please select">
            <el-option v-for="item in statusOptions" :key="item" :label="item" :value="item" />
          </el-select>
        </el-form-item>
        <!-- <el-form-item label="Imp">
          <el-rate v-model="temp.importance" :colors="['#99A9BF', '#F7BA2A', '#FF9900']" :max="3" style="margin-top:8px;" />
        </el-form-item> -->
        <!-- <el-form-item label="Remark">
          <el-input v-model="temp.remark" :autosize="{ minRows: 2, maxRows: 4}" type="textarea" placeholder="Please input" />
        </el-form-item> -->
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">
          Cancel
        </el-button>
        <el-button type="primary" @click="dialogStatus==='create'?createData():updateData()">
          Confirm
        </el-button>
      </div>
    </el-dialog>

    <!-- <el-dialog :visible.sync="dialogPvVisible" title="Reading statistics">
      <el-table :data="pvData" border fit highlight-current-row style="width: 100%">
        <el-table-column prop="key" label="Channel" />
        <el-table-column prop="pv" label="Pv" />
      </el-table>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogPvVisible = false">Confirm</el-button>
      </span>
    </el-dialog> -->
  </div>
</template>

<script>
import { fetchList, createArticle, updateArticle, deleteArticle, modifyStatus } from '@/api/article'
import waves from '@/directive/waves' // waves directive
import { parseTime } from '@/utils'
import Pagination from '@/components/Pagination' // secondary package based on el-pagination

// const calendarTypeOptions = [
//   { key: 'CN', display_name: 'China' },
//   { key: 'US', display_name: 'USA' },
//   { key: 'JP', display_name: 'Japan' },
//   { key: 'EU', display_name: 'Eurozone' }
// ]

// arr to obj, such as { CN : "China", US : "USA" }
// const calendarTypeKeyValue = calendarTypeOptions.reduce((acc, cur) => {
//   acc[cur.key] = cur.display_name
//   return acc
// }, {})

export default {
  name: 'ComplexTable',
  components: { Pagination },
  directives: { waves },
  filters: {
    statusFilter(status) {
      const statusMap = {
        published: 'success',
        draft: 'info',
        deleted: 'danger'
      }
      return statusMap[status]
    }
    // typeFilter(type) {
    //   return calendarTypeKeyValue[type]
    // }
  },
  data() {
    return {
      tableKey: 0,
      list: null,
      total: 0,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 10,
        // importance: undefined,
        title: undefined,
        // type: undefined,
        sort: '+id'
      },
      // importanceOptions: [1, 2, 3],
      // calendarTypeOptions,
      sortOptions: [{ label: 'ID Ascending', key: '+id' }, { label: 'ID Descending', key: '-id' }],
      statusOptions: ['published', 'draft', 'deleted'],
      showReviewer: false,
      temp: {
        id: undefined,
        // importance: 1,
        // remark: '',
        timestamp: new Date(),
        title: '',
        // type: '',
        status: 'published'
      },
      dialogFormVisible: false,
      dialogStatus: '',
      textMap: {
        update: 'Edit',
        create: 'Create'
      },
      dialogPvVisible: false,
      pvData: [],
      rules: {
        // type: [{ required: true, message: 'type is required', trigger: 'change' }],
        timestamp: [{ type: 'date', required: true, message: 'timestamp is required', trigger: 'change' }],
        title: [{ required: true, message: 'title is required', trigger: 'blur' }]
      },
      downloadLoading: false
    }
  },
  created() {
    this.getList()
  },
  methods: {
    getList() {
      console.clear()
      this.listLoading = true
      console.log('fetchList-------------------->')
      console.log('request\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(this.listQuery, null, 2))
      fetchList(this.listQuery).then(response => {
        this.list = response.data.items
        console.log('this.list\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(this.list, null, 2))
        this.total = response.data.total
        console.log('this.total\n%c%d', 'color: red; font-style: italic; font-size: 13px', this.total)

        // Just to simulate the time of the request
        setTimeout(() => {
          this.listLoading = false
        }, 1.5 * 1000)
      })
    },
    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    handleModifyStatus(row, status) {
      console.clear()
      console.log('点击 状态切换 按钮')
      this.temp = Object.assign({}, row)
      this.temp.status = status
      console.log('modifyStatus-------------------->')
      console.log('request\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(this.temp, null, 2))
      modifyStatus(this.temp).then(() => {
        this.$message({
          message: '操作Success',
          type: 'success'
        })
      })
      row.status = status
    },
    sortChange(data) {
      const { prop, order } = data
      if (prop === 'id') {
        this.sortByID(order)
      }
    },
    sortByID(order) {
      if (order === 'ascending') {
        this.listQuery.sort = '+id'
      } else {
        this.listQuery.sort = '-id'
      }
      this.handleFilter()
    },
    resetTemp() {
      this.temp = {
        id: undefined,
        // importance: 1,
        // remark: '',
        timestamp: new Date(),
        title: '',
        status: 'published'
        // type: ''
      }
    },
    handleCreate() {
      console.clear()
      console.log('点击 添加 按钮')
      this.resetTemp()
      this.dialogStatus = 'create'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    createData() {
      console.log('点击 对话框 确认 按钮')
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          this.temp.author = 'vue-element-admin'
          const tempData = Object.assign({}, this.temp)
          this.temp.id = ++this.total
          console.log('createArticle-------------------->')
          console.log('request\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(tempData, null, 2))
          createArticle(tempData).then(() => {
            this.list.unshift(this.temp)
            this.dialogFormVisible = false
            this.$notify({
              title: 'Success',
              message: 'Created Successfully',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleUpdate(row) {
      console.clear()
      console.log('点击 编辑 按钮')
      this.temp = Object.assign({}, row) // copy obj
      this.temp.timestamp = new Date(this.temp.timestamp)
      this.dialogStatus = 'update'
      this.dialogFormVisible = true
      this.$nextTick(() => {
        this.$refs['dataForm'].clearValidate()
      })
    },
    updateData() {
      console.log('点击 对话框 确认 按钮')
      this.$refs['dataForm'].validate((valid) => {
        if (valid) {
          const tempData = Object.assign({}, this.temp)
          tempData.timestamp = +new Date(tempData.timestamp) // change Thu Nov 30 2017 16:41:05 GMT+0800 (CST) to 1512031311464
          console.log('updateArticle-------------------->')
          console.log('request\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(tempData, null, 2))
          updateArticle(tempData).then(() => {
            const index = this.list.findIndex(v => v.id === this.temp.id)
            this.list.splice(index, 1, this.temp)
            this.dialogFormVisible = false
            this.$notify({
              title: 'Success',
              message: 'Update Successfully',
              type: 'success',
              duration: 2000
            })
          })
        }
      })
    },
    handleDelete(row, index) {
      console.clear()
      console.log('点击 删除 按钮')
      this.temp = Object.assign({}, row)
      this.temp.status = 'deleted'
      console.log('deleteArticle-------------------->')
      console.log('request\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(this.temp, null, 2))
      deleteArticle(this.temp).then(() => {
        this.$notify({
          title: 'Success',
          message: 'Delete Successfully',
          type: 'success',
          duration: 2000
        })
        this.list.splice(index, 1)
      })
      row.status = 'deleted'
    },
    // handleFetchPv(pv) {
    //   fetchPv(pv).then(response => {
    //     this.pvData = response.data.pvData
    //     this.dialogPvVisible = true
    //   })
    // },
    handleDownload() {
      console.clear()
      console.log('点击 导出 按钮')
      this.downloadLoading = true
      import('@/vendor/Export2Excel').then(excel => {
        // const tHeader = ['timestamp', 'title', 'type', 'importance', 'status']
        const tHeader = ['timestamp', 'title', 'status']
        // const filterVal = ['timestamp', 'title', 'type', 'importance', 'status']
        const filterVal = ['timestamp', 'title', 'status']
        const data = this.formatJson(filterVal)
        console.log('data\n%c%s', 'color: red; font-style: italic; font-size: 13px', JSON.stringify(data, null, 2))
        excel.export_json_to_excel({
          header: tHeader,
          data,
          filename: 'table-list'
        })
        this.downloadLoading = false
      })
    },
    formatJson(filterVal) {
      return this.list.map(v => filterVal.map(j => {
        if (j === 'timestamp') {
          return parseTime(v[j])
        } else {
          return v[j]
        }
      }))
    },
    getSortClass: function(key) {
      const sort = this.listQuery.sort
      return sort === `+${key}` ? 'ascending' : 'descending'
    }
  }
}
</script>