vue实现条件叠加搜索的解决方法

<template>
 <el-pagination
  background
  :page-size="params.pageSize"
  @current-change="handlePaginationChange"
  layout="prev, pager, next"
  :total="total">
 </el-pagination>
</template>

 <template>
//下拉选择框
<el-select v-model="params.categoryId" placeholder="请选择栏目" size='mini'
 v-loading="loadingCategory">
 <el-option :key='c.id' v-for='c in categories' :label="c.name" :value="c.id"></el-option>
</el-select>
 
//搜索框
<el-input placeholder="请输入关键字"
 prefix-icon="el-icon-search"
 v-model="params.keywords"
  clearable>
</el-input>
</template>

export default{
 data(){
  return{
   ... //其它的数据省略
 
   params:{ //存储分页、搜索数据
   page:0,
   pageSize:3,
   categoryId:undefined,
   keywords:undefined
   }
  }
 },
 watch:{
 params:{
  handler(val){
   this.findArticle(); //查找文章
  },
  deep:true //深度监听
 },
 methods:{
  //处理分页
  handlePaginationChange(page){
   this.params.page=page-1;
  }, 
  //查询文章
  findArticle(){
   axios.get('',{params:this.params})
   .then(()=>{})
   .catch(()=>{})
  }
 }
 
}

<template>
 <el-pagination
  background
  :page-size="params.pageSize"
  :total="total"
  layout="prev, pager, next"
  :current-page="(params.page+1)" //将页数进行动态绑定这样利于我们操作页数的改变
  @current-change="handlePaginationChange"
  >
 </el-pagination>
 
</template>

<template> 
 //下拉选择框
 <el-select v-model="params.categoryId" placeholder="请选择栏目" size='mini'
   @change="selectChange"
  >
  <el-option :key='c.id' v-for='c in categories' :label="c.name" :value="c.id">
  </el-option>
 </el-select>
</template>
 
export default{
 //重置page为0
 selectChange(){
  this.params.page=0;
 },
}