vue项目多列导入

用axios.post传一个数组参数使用：JSON.stringify(this.params)

 <form>
                 <span class="upimg"><img :src="img"><input type="file" class="file" name="file" @change="getFile($event)"></span>
                 <button @click="submitForm($event)">submit</button>
             </form>

 import XLSX from 'xlsx';
     export default{
         name: 'cqadd',
         data(){
             return {
                 file: '',
                 img: '../src/assets/images/Upload-picture.png',
                 jsondata: []
             }
         },
         methods: {
             //导入excel获取到内容
             getFile(event){
                 //wb 存储读取完成的数据
                 //jsondata 存储获取excel json数据
                 var wb,jsondata,that=this;
                 var f = event.target.files[];
                 var reader = new FileReader();
                 reader.onload = function(e){
                     var data = e.target.result;
                     wb = XLSX.read(data, {type: "binary"});
                     that.jsondata = XLSX.utils.sheet_to_json(wb.Sheets[wb.SheetNames[]]);
                 }
                 reader.readAsBinaryString(f);
             },
             submitForm(event){
                 event.preventDefault();

                 let params = new URLSearchParams();

                 params.append('jsondata', JSON.stringify(this.jsondata));

                 this.axios.post('url', params).then((ret)=>{
                     if(ret.status === ){
                         this.$router.push(ret.data.requireUrl);
                     }
                 })
             }
         },
         mounted(){

         }
     }

后端接收

$jsondata = $_POST["jsondata"];

$arr = json_decode($jsondata);//需要json_decode()下再使用

 <?php
     require '../config/config.php';
     $conn = Connect();

     $patterns = array('\'', '"');
     $replacements = array('&apos', '&quot');

     $jsondata = $_POST["jsondata"];
     $arr = json_decode($jsondata);

     $sql = "INSERT INTO cquestion (question, answer, optionone, optiontwo, optionthree, tips) VALUES (?,?,?,?,?,?)";

     $stmt = mysqli_stmt_init($conn);

     if(mysqli_stmt_prepare($stmt, $sql)){
         mysqli_stmt_bind_param($stmt, 'ssssss', $question, $answer, $optionone, $optiontwo, $optionthree, $tips);
         // 注 此处's'如只给一个字段插入就只写一个s，插入几个字段的数据就写几个

         for($i=;$i<count($arr);$i++){
             $question = str_replace($patterns, $replacements, $arr[$i]->question);
             $answer = str_replace($patterns, $replacements, $arr[$i]->answer);
             $optionone = str_replace($patterns, $replacements, $arr[$i]->optionone);
             $optiontwo = str_replace($patterns, $replacements, $arr[$i]->optiontwo);
             $optionthree = str_replace($patterns, $replacements, $arr[$i]->optionthree);
             if(empty($arr[$i]->tips)){
                 $tips = "";
             }else{
                 $tips = str_replace($patterns, $replacements, $arr[$i]->tips);
             }
             mysqli_stmt_execute($stmt);
         }

         $arr=[
                 "status"=>,
                 "message"=>"add data success",
                 "requireUrl"=>"/cqlist"
             ];
         echo json_encode($arr);
     }else{
         echo "创建数据表错误：" . $conn->error;
     }

     $conn->close();
  ?>