基于Vue+ELement搭建動(dòng)態(tài)樹(shù)與數(shù)據(jù)表格實(shí)現(xiàn)分頁(yè)模糊查詢實(shí)戰(zhàn)全過(guò)程

更新時(shí)間：2023年10月10日 10:18:18 作者：Java方文山

這篇文章主要給大家介紹了關(guān)于如何基于Vue+ELement搭建動(dòng)態(tài)樹(shù)與數(shù)據(jù)表格實(shí)現(xiàn)分頁(yè)模糊查詢的相關(guān)資料,Vue Element UI提供了el-pagination組件來(lái)實(shí)現(xiàn)表格數(shù)據(jù)的分頁(yè)功能,需要的朋友可以參考下

一、前言

在上一篇博文我們搭建了首頁(yè)導(dǎo)航和左側(cè)菜單，但是我們的左側(cè)菜單是死數(shù)據(jù)今天我們就來(lái)把死的變成活的，并且完成右側(cè)內(nèi)容的書(shū)籍?dāng)?shù)據(jù)表格的展示與分頁(yè)效果，話不多說(shuō)上代碼??！

二、左側(cè)動(dòng)態(tài)樹(shù)實(shí)現(xiàn)

2.1.后臺(tái)數(shù)據(jù)接口定義

首先我們將后端的代碼寫(xiě)好Controller層代碼

package com.zking.ssm.controller;
import com.zking.ssm.model.Module;
import com.zking.ssm.model.RoleModule;
import com.zking.ssm.model.TreeNode;
import com.zking.ssm.service.IModuleService;
import com.zking.ssm.util.JsonResponseBody;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
@Controller
@RequestMapping("/module")
public class ModuleController {
    @Autowired
    private IModuleService moduleService;
    @RequestMapping("/queryRootNode")
    @ResponseBody
    public JsonResponseBody<List<Module>> queryRootNode(){
        try {
            List<Module> modules = moduleService.queryRootNode(-1);
            return new JsonResponseBody<>("OK",true,0,modules);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("初始化首頁(yè)菜單錯(cuò)誤",false,0,null);
        }
    }
    @RequestMapping("/queryElementTree")
    @ResponseBody
    public JsonResponseBody<List<TreeNode>> queryElementTree(){
        try {
            List<TreeNode> modules = moduleService.queryTreeNode(-1);
            return new JsonResponseBody<>("OK",true,0,modules);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("初始化ElementUI的Tree組件錯(cuò)誤",false,0,null);
        }
    }
    @RequestMapping("/addRoleModule")
    @ResponseBody
    public JsonResponseBody<?> addRoleModule(RoleModule roleModule){
        try {
            moduleService.addRoleModule(roleModule);
            return new JsonResponseBody<>("新增角色權(quán)限成功",true,0,null);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("新增角色權(quán)限失敗",false,0,null);
        }
    }
    @RequestMapping("/queryModuleByRoleId")
    @ResponseBody
    public JsonResponseBody<List<String>> queryModuleByRoleId(RoleModule roleModule){
        try {
            List<String> modules = moduleService.queryModuleByRoleId(roleModule);
            return new JsonResponseBody<>("OK",true,0,modules);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("獲取角色權(quán)限失敗",false,0,null);
        }
    }
}

由此我們可知后端查詢的樹(shù)形菜單的接口為：http://localhost:8080/ssm/module/queryRootNode

2.2.前端導(dǎo)航菜單綁定

數(shù)據(jù)有了我們只用考慮怎么通過(guò)Vue拿到數(shù)據(jù)以及展示數(shù)據(jù)就可以了。

找到src下面的api目錄下的action.js文件添加下列接口

  'SYSTEM_USER_MODULE': '/module/queryRootNode', //左側(cè)菜單

在LeftNav.vue中的鉤子函數(shù)內(nèi)編寫(xiě)方法去到后端拿取數(shù)據(jù)賦予變量

created() {
      this.$root.Bus.$on('aaa', r => {
        this.collapsed = r;
      });
      //加載頁(yè)面先去后端拿數(shù)據(jù)
      let url = this.axios.urls.SYSTEM_USER_MODULE;
      this.axios.get(url, {}).then(r => {
        this.menus=r.data.rows
      }).catch(e => {
      })
    }

并在data中定義變量 menus:[]

 menus:[]

2.3.根據(jù)數(shù)據(jù)渲染頁(yè)面

去到我們ELement查找相應(yīng)的代碼進(jìn)行cv，下面是我找好的你們直接用，我們現(xiàn)在只需要將后端獲取到的數(shù)據(jù)在上面的代碼中進(jìn)行遍歷即可。

        <!-- 左側(cè)菜單內(nèi)容-->
      <el-submenu v-for="m in menus" :index="'ind_'+m.id" :key="'key_'+m.id">
        <template slot="title">
          <i :class="m.icon"></i>
          <span>{{m.text}}</span>
        </template>
        <el-menu-item  v-for="ms in m.modules" :index="ms.url" :key="'key_'+ms.id">
          <i :class="ms.icon"></i>
          <span>{{ms.text}}</span>
        </el-menu-item>
      </el-submenu>

效果展示：

2.4.動(dòng)態(tài)路由實(shí)現(xiàn)

我們點(diǎn)擊下方的子菜單肯定會(huì)顯示右側(cè)白框里面的內(nèi)容，所以我們需要實(shí)現(xiàn)動(dòng)態(tài)路由

①實(shí)現(xiàn)路由跳轉(zhuǎn)及當(dāng)前項(xiàng)的設(shè)置

<el-menu router :default-active="$route.path">
	<el-menu-item index="/company/userManager">用戶管理</el-menu-item>
</el-menu>

注意事項(xiàng)：

①要實(shí)現(xiàn)路由跳轉(zhuǎn)，先要在 el-menu 標(biāo)簽上添加router屬性，然后只要在每個(gè) el-menu-item 標(biāo)簽內(nèi)的index屬性設(shè)置一下url即可實(shí)現(xiàn)點(diǎn)擊 el-menu-item 實(shí)現(xiàn)路由跳轉(zhuǎn)。

②導(dǎo)航當(dāng)前項(xiàng)，在 el-menu 標(biāo)簽中綁定 :default-active="$route.path"，注意是綁定屬性，不要忘了加“:”，當(dāng)$route.path等于 el-menu-item 標(biāo)簽中的index屬性值時(shí)則該item為當(dāng)前項(xiàng)。

③el-submenu標(biāo)簽中的url屬性不能為空，且不能相同，否則會(huì)導(dǎo)致多個(gè)節(jié)點(diǎn)收縮/折疊效果相同的問(wèn)題。

②生成相對(duì)應(yīng)的Vue文件

根據(jù)我們點(diǎn)擊子菜單所顯示的層級(jí)關(guān)系進(jìn)行Vue組件的編寫(xiě)，下面以書(shū)本管理下面的新增書(shū)本為例

AddBook.Vue

<template>
  <h1>新增書(shū)本</h1>
</template>
<script>
</script>
<style>
</style>

③配置路由與路由路徑的關(guān)系

index.js

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 Registered from '@/views/Registered'
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: '/Registered',
    name: 'Registered',
    component: Registered
  }, {
    path: '/AppMain',
    name: 'AppMain',
    component: AppMain,
    children: [{
      path: '/LeftNav',
      name: 'LeftNav',
      component: LeftNav
    }, {
      path: '/TopNav',
      name: 'TopNav',
      component: TopNav
    }, {
      path: '/book/AddBook',
      name: 'AddBook',
      component: AddBook
    }, {
      path: '/book/BookList',
      name: 'BookList',
      component: BookList
    }]
  }]
})

④將組件渲染到頁(yè)面上

在AppMain.js中顯示組件就需要加上<router-view></router-view>

<template>
  <el-container class="main-container">
    <el-aside v-bind:class="asideClass">
      <LeftNav></LeftNav>
    </el-aside>
    <el-container>
      <el-header class="main-header">
        <TopNav></TopNav>
      </el-header>
      <el-main class="main-center">
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
  // 導(dǎo)入組件
  import TopNav from '@/components/TopNav.vue'
  import LeftNav from '@/components/LeftNav.vue'
  // 導(dǎo)出模塊
  export default {
    components: {
      TopNav,LeftNav
    },data() {
      return {
        asideClass: "main-aside"
      }
    },
    created(){
      this.$root.Bus.$on('aaa',r=>{
        this.asideClass=r ? 'main-aside-collapsed':'main-aside';
      });
    }
  };
</script>
<style scoped>
  .main-container {
    height: 100%;
    width: 100%;
    box-sizing: border-box;
  }
  .main-aside-collapsed {
    /* 在CSS中，通過(guò)對(duì)某一樣式聲明! important ，可以更改默認(rèn)的CSS樣式優(yōu)先級(jí)規(guī)則，使該條樣式屬性聲明具有最高優(yōu)先級(jí) */
    width: 64px !important;
    height: 100%;
    background-color: #334157;
    margin: 0px;
  }
  .main-aside {
    width: 240px !important;
    height: 100%;
    background-color: #334157;
    margin: 0px;
  }
  .main-header,
  .main-center {
    padding: 0px;
    border-left: 2px solid #333;
  }
</style>

效果演示：

三、右側(cè)內(nèi)容數(shù)據(jù)表格

3.1.根據(jù)文檔搭建頁(yè)面

首先我們分析一下，我們右側(cè)有那些內(nèi)容？然后去到我們ELementUI官網(wǎng)查找相對(duì)應(yīng)的案例代碼，我們首先需要一個(gè)form表單提供我們輸入書(shū)籍名稱進(jìn)行模糊查詢，還需要數(shù)據(jù)表格展示數(shù)據(jù)，其次就是底部的分頁(yè)條來(lái)完成分頁(yè)效果，知道了需求我們直接去找案例代碼即可。

AddBook.js

<template>
  <div>
    <!--搜索欄-->
    <el-form :inline="true" class="form-search" style="padding: 30px;">
      <el-form-item label="書(shū)本名稱">
        <el-input v-model="bookname" placeholder="請(qǐng)輸入書(shū)本名稱"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" @click="query(1)">查詢</el-button>
      </el-form-item>
    </el-form>
    <!-- 數(shù)據(jù)表格-->
    <el-table :data="tableData" style="width: 100%" :row-class-name="tableRowClassName">
      <el-table-column prop="id" label="編號(hào)" width="180">
      </el-table-column>
      <el-table-column prop="bookname" label="書(shū)籍名稱" width="180">
      </el-table-column>
      <el-table-column prop="price" label="書(shū)籍價(jià)格" width="180">
      </el-table-column>
      <el-table-column prop="booktype" label="書(shū)籍類別" width="180">
      </el-table-column>
    </el-table>
    <!-- 分頁(yè)欄-->
    <div class="block">
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="currentPage4"
        :page-sizes="[100, 200, 300, 400]" :page-size="100" layout="total, sizes, prev, pager, next, jumper"
        :total="400">
      </el-pagination>
    </div>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        bookname: "",
        tableData: []
      }
    },
    methods: {
    }
  }
</script>
<style>
  .el-table .warning-row {
    background: oldlace;
  }
  .el-table .success-row {
    background: #f0f9eb;
  }
</style>

這樣我們的基本內(nèi)容就搭建完成了

3.2.實(shí)現(xiàn)模糊查詢

和前面一樣我們先去后端將接口定義好

package com.zking.ssm.controller;
import com.zking.ssm.model.Book;
import com.zking.ssm.service.IBookService;
import com.zking.ssm.util.JsonResponseBody;
import com.zking.ssm.util.PageBean;
import com.zking.ssm.vo.BookFileVo;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.util.List;
import java.util.Map;
@Controller
@RequestMapping("/book")
public class BookController {
    @Autowired
    private IBookService bookService;
    @RequestMapping("/addBook")
    @ResponseBody
    public JsonResponseBody<?> addBook(Book book){
        try {
            bookService.insert(book);
            return new JsonResponseBody<>("新增書(shū)本成功",true,0,null);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("新增書(shū)本失敗",false,0,null);
        }
    }
    @RequestMapping("/editBook")
    @ResponseBody
    public JsonResponseBody<?> editBook(Book book){
        try {
            bookService.updateByPrimaryKey(book);
            return new JsonResponseBody<>("編輯書(shū)本成功",true,0,null);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("編輯書(shū)本失敗",false,0,null);
        }
    }
    @RequestMapping("/delBook")
    @ResponseBody
    public JsonResponseBody<?> delBook(Book book){
        try {
            bookService.deleteByPrimaryKey(book.getId());
            return new JsonResponseBody<>("刪除書(shū)本成功",true,0,null);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("刪除書(shū)本失敗",false,0,null);
        }
    }
    @RequestMapping("/queryBookPager")
    @ResponseBody
    public JsonResponseBody<List<Book>> queryBookPager(Book book, HttpServletRequest req){
        try {
            PageBean pageBean=new PageBean();
            pageBean.setRequest(req);
            List<Book> books = bookService.queryBookPager(book, pageBean);
            return new JsonResponseBody<>("OK",true,pageBean.getTotal(),books);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("分頁(yè)查詢書(shū)本失敗",false,0,null);
        }
    }
    @RequestMapping("/queryBookCharts")
    @ResponseBody
    public JsonResponseBody<?> queryBookCharts(){
        try{
            Map<String, Object> charts = bookService.queryBookCharts();
            return new JsonResponseBody<>("OK",true,0,charts);
        }catch (Exception e){
            e.printStackTrace();
            return new JsonResponseBody<>("查詢統(tǒng)計(jì)分析數(shù)據(jù)失敗",false,0,null);
        }
    }
    @RequestMapping("/upload")
    @ResponseBody
    public JsonResponseBody<?> upload(BookFileVo bookFileVo){
        try {
            MultipartFile bookFile = bookFileVo.getBookFile();
            System.out.println(bookFileVo);
            System.out.println(bookFile.getContentType());
            System.out.println(bookFile.getOriginalFilename());
            return new JsonResponseBody<>("上傳成功",true,0,null);
        } catch (Exception e) {
            e.printStackTrace();
            return new JsonResponseBody<>("上傳失敗",false,0,null);
        }
    }
    @RequestMapping("/download")
    public void download(HttpServletRequest request, HttpServletResponse response){
        try {
            String relativePath = "uploads/1.jpg";
            String absolutePath = request.getRealPath(relativePath);
            InputStream is = new FileInputStream(new File(absolutePath));
            OutputStream out = response.getOutputStream();
            response.setContentType("application/octet-stream");
            response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("1.jpg", "UTF-8"));
            byte[] by = new byte[1024];
            int len = -1;
            while (-1 != (len = is.read(by))) {
                out.write(by);
            }
            is.close();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    @RequestMapping("/downloadUrl")
    public void downloadUrl(HttpServletRequest request, HttpServletResponse response){
        String relativePath = "uploads/1.jpg";
        String absolutePath = request.getRealPath(relativePath);
        InputStream is = null;
        OutputStream out = null;
        try {
            is = new FileInputStream(new File(absolutePath));
            // 設(shè)置Content-Disposition
            response.setHeader("Content-Disposition",
                    "attachment;filename=" + URLEncoder.encode("1.jpg", "UTF-8"));
            out = response.getOutputStream();
            IOUtils.copy(is, out);
            response.flushBuffer();
            System.out.println("完成");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            IOUtils.closeQuietly(is);
            IOUtils.closeQuietly(out);
        }
    }
}

由此我們可知后端查詢書(shū)籍的接口為：http://localhost:8080/ssm/book/queryBookPager

action.js文件添加下列接口

'BOOK_LIST': '/book/queryBookPager', //書(shū)籍查詢

在AddBook.vue中的鉤子函數(shù)內(nèi)編寫(xiě)方法去到后端拿取數(shù)據(jù)賦予變量

 created() {
      //加載頁(yè)面先去后端拿數(shù)據(jù)
      let params={
        bookname:this.bookname
      }
      let url = this.axios.urls.BOOK_LIST;
      this.axios.get(url, {params:params}).then(r => {
        console.log(r)
        this.tableData = r.data.rows
      }).catch(e => {
      })
    }

由于不止我們初始頁(yè)面需要用到這個(gè)方法模糊查詢也要所以我們將該代碼進(jìn)行封裝讓它有復(fù)用性

    methods: {
      //封裝查詢方法
      list(params) {
        let url = this.axios.urls.BOOK_LIST;
        this.axios.get(url, {
          params: params
        }).then(r => {
          console.log(r)
          this.tableData = r.data.rows
        }).catch(e => {
        })
      },
      //模糊查詢方法
      query() {
        let params = {
          bookname: this.bookname
        }
        this.list(params)
      }
    },
    created() {
      //加載頁(yè)面先去后端拿數(shù)據(jù)
      let params = {
        bookname: this.bookname
      }
      this.list()
    }

效果展示：

四、分頁(yè)實(shí)現(xiàn)

更改我們的分頁(yè)欄代碼并定義變量，編寫(xiě)分頁(yè)欄中自帶的兩個(gè)方法，一個(gè)是頁(yè)碼發(fā)生變化會(huì)觸發(fā)一個(gè)是頁(yè)數(shù)發(fā)生改變會(huì)觸發(fā)。

<!-- 分頁(yè)欄-->
    <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>

<script>
  export default {
    data() {
      return {
        bookname: "",
        tableData: [],
        rows: 10,
        page: 1,
        total: 0,
      }
    },
    methods: {
      //封裝查詢方法
      list(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 => {
        })
      },
      //模糊查詢方法
      query() {
        let params = {
          bookname: this.bookname
        }
        this.list(params)
      },
      //當(dāng)頁(yè)發(fā)生變化會(huì)觸發(fā)
      handleSizeChange(r) {
        let params = {
          bookname: this.bookname,
          rows: this.rows,
          rows: r
        }
        this.list(params)
      },
      //當(dāng)前頁(yè)數(shù)發(fā)生變化會(huì)觸發(fā)
      handleCurrentChange(p) {
        let params = {
          bookname: this.bookname,
          rows: this.rows,
          page: p
        }
        this.list(params)
      }
    },
    created() {
      //加載頁(yè)面先去后端拿數(shù)據(jù)
      let params = {
        bookname: this.bookname
      }
      this.list()
    }
  }
</script>

效果展示：

總結(jié)

到此這篇關(guān)于基于Vue+ELement搭建動(dòng)態(tài)樹(shù)與數(shù)據(jù)表格實(shí)現(xiàn)分頁(yè)模糊查詢的文章就介紹到這了,更多相關(guān)Vue+ELement分頁(yè)模糊查詢內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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