vue+Element实现搜索关键字高亮功能

<el-form :inline="true" :model="formQuery" >
  <el-row>
  <el-col :span="8">
   <el-form-item label="日志编码" >
   <el-input v-model="formQuery.queryMessage1" ></el-input>
   </el-form-item>
   </el-col>
   <el-col :span="8" >
   <el-form-item label="日志编码2">
   <el-input v-model="formQuery.queryMessage2" ></el-input>
   </el-form-item>
   </el-col>
   </el-row>
   <el-row>
   <el-col :span="20">
   <el-form-item label="日志编码3">
   <el-input v-model="formQuery.queryMessage3" ></el-input> </el-form-item>
   </el-col>
   <el-col :span="4">
   <el-form-item>
   <el-button @click="loadData()" >查询</el-button>
   </el-form-item>
   </el-col>
  </el-row>
</el-form>

<el-table :fit="true" ref="logInfosData" max-height="700" :data="logInfosData"
  element-loading-text="loading" :highlight-current-row="true"
   size="mini" >
  <el-table-column prop="_source.message" :label="$t('Loginformation')" sortable >
    <template slot-scope="scope">
    <span v-html="showData(message)"
      == <!--注意此处的写法,该函数showData返回的结果是一段HTML代码，在这里是直接进行填充，填充的内容是修改了关键字样式以后的内容。-->==
      ></span>
     </template>
    </el-table-column>
</el-table>

computed:{
  // 实时监听表格
  tables: function() {
   const search = this.listQuery.queryMessage||this.listQuery.queryMessage2||this.listQuery.queryMessage3
   if (search) {
    return this.logInfosData.filter(dataNews => {
     return Object.keys(dataNews).some(key => {
      return String(dataNews[key]).toLowerCase().indexOf(search) > -1
     })
    })
   }
   return this.tableData
  }
 }

// 筛选变色
  showData(val) {
   val = val + '';
   if (this.checkPara(val,this.listQuery.queryMessage)||this.checkPara(val,this.listQuery.queryMessage2)
    ||this.checkPara(val,this.listQuery.queryMessage3)) {
    //如果搜索结果记录包含关键字中的任何一个，那么修改样式
    return val.replace(this.listQuery.queryMessage'<font color="#409EFF">' + this.listQuery.prodcd + '</font>')
     .replace(this.listQuery.queryMessage2, '<font color="#409EFF">' + this.listQuery.queryMessage3 + '</font>')
     
   } else {
    return val //不做任何修改
   }
  },
  //判断搜索记录是否包含某个关键字
  checkPara(val,para){
    if (val.indexOf(para) !== -1 && para !== ''){
     return true;
    }else {
     return false
    }
  }