vue+element的表格分页和前端搜索

1.前端后台管理会存在很多表格,表格数据过多就需要分页;
2.前端交互每次搜索如果都请求服务器会加大服务器的压力,所以在数据量不是很大的情况下可以一次性将数据返回,前端做检索
3.下面贴上一个demo

---

<template>
<div>
  <el-input v-model="tableDataName" placeholder="请输入姓名" style="width:240px"></el-input>
  <el-button type="primary" @click="doFilter">搜索</el-button>
  <el-button type="primary" @click="openData">展示数据</el-button>
  <el-table
    :data="tableDataEnd"
    border
    style="width: 100%">
    <el-table-column
      prop="date"
      label="日期"
      width="180">
    </el-table-column>
    <el-table-column
      prop="name"
      label="姓名"
      width="180">
    </el-table-column>
    <el-table-column
      prop="address"
      label="地址">
    </el-table-column>
  </el-table>
  <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="currentPage"
      :page-sizes="[1, 2, 3, 4]"
      :page-size="pageSize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="totalItems">
    </el-pagination>
</div>
</template>
<script>
export default {
  data() {
    return {
      tableDataBegin: [
        {
          date: "2016-05-01",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1518 弄"
        },
        {
          date: "2016-05-02",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1517 弄"
        },
        {
          date: "2016-05-03",
          name: "王二虎",
          address: "上海市普陀区金沙江路 1519 弄"
        },
        {
          date: "2016-05-04",
          name: "王二虎",
          address: "上海市普陀区金沙江路 1516 弄"
        },
        {
          date: "2016-05-05",
          name: "王三虎",
          address: "上海市普陀区金沙江路 1518 弄"
        },
        {
          date: "2016-05-06",
          name: "王三虎",
          address: "上海市普陀区金沙江路 1517 弄"
        },
        {
          date: "2016-05-07",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1519 弄"
        },
        {
          date: "2016-05-08",
          name: "王小虎",
          address: "上海市普陀区金沙江路 1516 弄"
        }
      ],
      tableDataName: "",
      tableDataEnd: [],
      currentPage: 4,
      pageSize: 2,
      totalItems: 0,
      filterTableDataEnd:[],
      flag:false
    };
  },
  created() {
    this.totalItems = this.tableDataBegin.length;
    if (this.totalItems > this.pageSize) {
      for (let index = 0; index < this.pageSize; index++) {
        this.tableDataEnd.push(this.tableDataBegin[index]);
      }
    } else {
      this.tableDataEnd = this.tableDataBegin;
    }
  },
  methods: {
    //前端搜索功能需要区分是否检索,因为对应的字段的索引不同
    //用两个变量接收currentChangePage函数的参数
    doFilter() {
      if (this.tableDataName == "") {
        this.$message.warning("查询条件不能为空！");
        return;
      }
      this.tableDataEnd = []
      //每次手动将数据置空,因为会出现多次点击搜索情况
      this.filterTableDataEnd=[]
      this.tableDataBegin.forEach((value, index) => {
        if(value.name){
          if(value.name.indexOf(this.tableDataName)>=0){
            this.filterTableDataEnd.push(value)
          }
        }
      });
      //页面数据改变重新统计数据数量和当前页
      this.currentPage=1
      this.totalItems=this.filterTableDataEnd.length
      //渲染表格,根据值
      this.currentChangePage(this.filterTableDataEnd)
      //页面初始化数据需要判断是否检索过
      this.flag=true
    },
    openData() {},
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`);
      this.pageSize = val;
      this.handleCurrentChange(this.currentPage);
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`);
      this.currentPage = val;
      //需要判断是否检索
      if(!this.flag){
      this.currentChangePage(this.tableDataEnd)
      }else{
      this.currentChangePage(this.filterTableDataEnd)
      }
    }, //组件自带监控当前页码
    currentChangePage(list) {
      let from = (this.currentPage - 1) * this.pageSize;
      let to = this.currentPage * this.pageSize;
      this.tableDataEnd = [];
      for (; from < to; from++) {
        if (list[from]) {
          this.tableDataEnd.push(list[from]);
        }
      }
    }
  }
};
</script>

原文地址：https://segmentfault.com/a/1190000012510886