vue阿里上传图片报400错误

首先我用vue上传阿里图片用的是分片上传,分片上传由于一片是以100kb为起始的,所以当图片大小小于100kb的时候不分片,可以正常上传,当大于100kb的时候,会报400错误如下

One or more of the specified parts could not be found or the specified entit

当报这个错误时你要去登录阿里后台设置一下

文档地址:https://help.aliyun.com/document_detail/32069.htm
exopose header 要设置为 ETag

设置如下图

当你设置好了之后发现大于100kb也可以上传了,只不过阿里返回的图片链接格式有所不同

大于100kb的图片链接?后面带了一些参数你要截取

 下面是我的代码,运用了element组件库,包含了图片上传阿里,图片压缩

<template>
    <div class="fabu">
        <div class="d1">
            <div class="dd1">
                <textarea placeholder="想要说的..." v-model="form.comment"></textarea>
                <el-upload
                    action=""
                    :http-request="zidingyi_upload" 
                    list-type="picture-card"
                    ref="upload"
                    :limit="3"
                    :auto-upload="false"
                    :on-preview="handlePictureCardPreview"
                    :on-remove="handleRemove"
                    :on-exceed="handleExceed"
                    :before-remove="beforeRemove"
                    :file-list="fileList"><!--auto-upload是否在选取文件后立即进行上传   exceed超出限制--><!--http-request点击发布--><!--:on-progress上传进度-->
                    <i class="el-icon-plus"></i>
                </el-upload>
            </div>
            <!--图片查看-->
            <el-dialog :visible.sync="dialogVisible">
                  <img width="100%" :src="dialogImageUrl" alt="">
            </el-dialog>
            
            <div class="dd2"><p>红包个数</p><p><input type="number" v-model="form.packet_count" placeholder="填写个数"/></p></div>
            <div class="dd3"><p>单个金额</p><p><input type="number" v-model="form.single_Amount" placeholder="填写金额"/></p></div>
            
            <el-button class="fa" @click="submitUpload">发布</el-button>
        </div>
        
    </div>
</template>

<script>
//    var OSS = require('ali-oss')
    export default{
        name:'fabu',
        data(){
            return{
                dialogImageUrl: '',
                dialogVisible: false,
                fileList:[],
                
                img_url_num:[],//用户发布时的图片
                
                user_token:'',
                form:{//发布时的参数
                    comment:'',
                    imagea:'',
                    imageb:'',
                    imagec:'',
                    lat:'',
                    lng:'',
                    single_Amount:'',//红包单价
                    packet_count:'',//红包个数
                },
                
            }
        },
        mounted(){
            this.user_token=localStorage.getItem('user_token')
            this.form.lat=localStorage.getItem('lat')
            this.form.lng=localStorage.getItem('lng')
        },
        methods:{
            //自定义点击上传
            submitUpload(){
                if(this.$refs.upload.submit()!=undefined){//如果用户点击发布时有上传图片
                    if(this.form.comment==''){
                        this.$alert('你还没有填写发布内容','提示',{
                            confirmButtonText: '确定',
                              callback:action => {
                              }
                        })
                        return
                    }
                    this.$refs.upload.submit()
                }else{//如果用户点击发布时没有有上传图片
                    if(this.form.comment==''){
                        this.$alert('你还没有填写发布内容','提示',{
                            confirmButtonText: '确定',
                              callback:action => {
                              }
                        })
                        return
                    }
                    this.userLaunchEvent2()
                }
                
            },
            //移除图片
            handleRemove(file, fileList) {
                console.log(file, fileList);
            },
            //点击文件列表中已上传的文件时的钩子,可修改放大图片及删除
            handlePictureCardPreview(file){
                this.dialogImageUrl = file.url;
                this.dialogVisible = true;
            },
            //超出限制
            handleExceed(files, fileList) {
                this.$message.warning(`当前限制选择 3 个文件,本次选择了 ${files.length} 个文件,共选择了 ${files.length + fileList.length} 个文件`);
              },
              //删除图片
            beforeRemove(file, fileList) {
                return this.$confirm(`确定移除 ${ file.name }?`);
            },
            //自定义图片上传
            zidingyi_upload(event){
                console.log(event)
                //先压缩在上传
                //利用H5的FileReader对象将上传的图片转成base64格式
                this.h5_reader(event.file)
            },
            //阿里图片上传
            doUpload(file){
                let that =this
                const client = new OSS.Wrapper({
                      secure: false,//http
                    region: 'oss-cn-hangzhou',
                    accessKeyId: '9eEB2RAzLHaW5Asu',
                    accessKeySecret: 'YdbWni4mRxDy0ndN6g4xH9ErpkV5ZT',
                    bucket: 'xiangcaoshequ'/*装图片的桶名*/
                })
                //获取图片的的格式
                let type = file.type.split('/')[1];
                //自定义上传的名字
                let name = 'xcb'+file.lastModified+'.'+type;
//                let name = 'lz'+this.user_phone+'.'+type;
                
//                console.log(type)
                
                if(file.size>this.fileSize){
                    this.$alert('亲,你上传的头像太大了,不能大于1M哦', '提示', {
                      confirmButtonText: '确定',
                      callback: action => {
                      }
                    });
                    return
                }
                client.multipartUpload(name, file,{
                    progress:function*(percentage, cpt){
                      // 上传进度
                      that.percentage = percentage
                      console.log(percentage)
                    }
                  }).then((result)=> {
                    console.log(result)//至此就拿到了返回的路径
                    //得到上传后的地址
                    let user_img = result.res.requestUrls[0];
                    //因为图片压缩之后大于100kb的情况下返回的图片路径有?而小于100kb没有,所以我做以下处理
                    let img_url=user_img.split('?')[0]
                    //上传是的图片路径放到数组里
                       this.img_url_num.push(img_url)
                    //调用后台接口
                    this.userLaunchEvent()
                }).catch(function (err) {
                    console.log(err);
                });
            },
            // 压缩图片
            compress(img) {
              let canvas = document.createElement("canvas");
              let ctx = canvas.getContext("2d");
              let initSize = img.src.length;
              let width = img.width;
              let height = img.height;
              canvas.width = width;
              canvas.height = height;
              // 铺底色
              ctx.fillStyle = "#fff";
              ctx.fillRect(0, 0, canvas.width, canvas.height);
              ctx.drawImage(img, 0, 0, width, height);
        
              //0.1进行最小压缩
              let ndata = canvas.toDataURL("image/jpeg", 0.5);
              // console.log("*******压缩后的图片大小*******");
              // console.log(ndata)
              // console.log(ndata.length);
              return ndata;
            },
            //利用H5的FileReader对象将上传的图片转成base64格式
            h5_reader(file){
                var that=this
                //创建一个reader
                let reader = new FileReader();
                //将图片转成base64格式
                reader.readAsDataURL(file);
                //读取成功后的回调
                reader.onloadend = function() {
                      let result = this.result;
                      let img = new Image();
                      img.src = result;
                      console.log("********未压缩前的图片大小********");
                      console.log(result.length);
                      img.onload = function() {
                        let data = that.compress(img);
                        that.imgUrl = result;
        
                        let blob = that.dataURItoBlob(data);
        
                        console.log("*******base64转blob对象******");
                        console.log(blob);
        
                        var formData = new FormData();
                        formData.append("file", blob);
                        console.log("********将blob对象转成formData对象********");
                            console.log(formData.get("file"));
                            
                            //压缩之后再阿里上传
                            let event =formData.get("file")
                            that.doUpload(event)
                      };
                };
                
            },
            // base64转成bolb对象
            dataURItoBlob(base64Data) {
                var byteString;
                if (base64Data.split(",")[0].indexOf("base64") >= 0)
                    byteString = atob(base64Data.split(",")[1]);
                else byteString = unescape(base64Data.split(",")[1]);
                var mimeString = base64Data
                    .split(",")[0]
                    .split(":")[1]
                    .split(";")[0];
                var ia = new Uint8Array(byteString.length);
                for (var i = 0; i < byteString.length; i++) {
                    ia[i] = byteString.charCodeAt(i);
                }
                return new Blob([ia], { type: mimeString });
            },
            //得到上传后的三个图片路径,调用接口
            //阿里图片上传之后的请求的发布内容
            userLaunchEvent(){
                this.form.imagea=this.img_url_num[0]
                this.form.imageb=this.img_url_num[1]
                this.form.imagec=this.img_url_num[2]
                if(this.form.imageb==undefined){
                    this.form.imageb=''
                }
                if(this.form.imagec==undefined){
                    this.form.imagec=''
                }
                console.log(this.form)
                this.$http.post('https://www.52herb.com/yuandi/campaign/userLaunchEvent?token='+this.user_token,this.form).then((res)=>{
                    console.log(res)
                })
            },
            //如果用户没有上传图片只是发了内容
            userLaunchEvent2(){
                console.log(this.form)
                this.$http.post('https://www.52herb.com/yuandi/campaign/userLaunchEvent?token='+this.user_token,this.form).then((res)=>{
                    console.log(res)
                })
            },
            //微信支付
            zhifu_money(){
                let url = window.location.href.split('#')[0];
                url = encodeURIComponent(url)
                this.$http.get('https://www.52herb.com/yuandi/app/weixinSign?url='+url).then((res)=>{
                    wx.config({
                        debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来,若要查看传入的参数,可以在pc端打开,参数信息会通过log打出,仅在pc端时才会打印。
                        appId: 'wx0e8a3c02faa5d089',
                        timestamp: res.body.data.timestamp,
                        nonceStr:res.body.data.nonceStr,
                        signature: res.body.data.signature,
                        jsApiList: [
                            'chooseWXPay'
                        ] // 必填,需要使用的JS接口列表
                    });
                })
                
                let user_money = 0;
                   let money = input_value*100;//产品价格
                   let pay_type =    'reachW'//微信支付
                this.$http.get("https://www.52herb.com/yuandi/pay/reach/weixin/preorderh5?money="+money+"&user_money="+user_money+"&pay_type="+pay_type+"&openId="+this.openid+"&shop_guid="+this.shop_guid+"&token="+this.user_token+"&notify_url=http://www.xiangcaobang.com/webapp/saoma.html&status=1").then((res)=>{
//                       alert(JSON.stringify(res))
                       var orderId =res.body.orderId;
                       wx.chooseWXPay({
                        timestamp: res.body.timeStamp, // 支付签名时间戳,注意微信jssdk中的所有使用timestamp字段均为小写。但最新版的支付后台生成签名使用的timeStamp字段名需大写其中的S字符
                        nonceStr: res.body.nonceStr, // 支付签名随机串,不长于 32 位
                        package: res.body.package, // 统一支付接口返回的prepay_id参数值,提交格式如:prepay_id=\*\*\*)
                        signType: 'MD5', // 签名方式,默认为'SHA1',使用新版支付需传入'MD5'
                        paySign: res.body.paySign, // 支付签名
                        success: function (res) {
                            // 支付成功后的回调函数
                            that.$http.post("https://www.52herb.com/yuandi/pay/weixin/updateUserOrder?orderId="+orderId+"&token="+that.user_token+"&method=2").then((res)=>{
//                                            alert(JSON.stringify(res))
                                if(res.body.code==0){
                                     that.$confirm('支付成功', '提示', {
                                      confirmButtonText: '继续支付',
                                      cancelButtonText: '返回首页',
                                      type: 'warning'
                                       }).then(() => {
                                           //获取用户当天余额抵扣多少钱
                                           that.huoqucishu()
                                    }).catch(() => { 
                                        that.$router.push({name:'Index'})
                                    });
                                }
                            })
                              
                        }
                    })
                   })
                
            }
            
        }
    }
</script>

<style scoped="scoped">
    /*.fa{font-size: 0.3rem;width: 50%;height: 0.8rem;line-height: 0.8rem;background: green;margin: auto;text-align: center;}*/
    .up .el-upload{width: 0.5rem;height: 0.5rem;}
    
    .fabu{background: #f0f0f0;position: absolute;width: 100%;height: 100%;}
    .d1 .dd1{height: 4rem;background: white;padding: 0.2rem 0.2rem 0 0.2rem;}
    .d1    textarea{height: 2rem;width: 100%;padding: 0.1rem;box-sizing: border-box;line-height: 0.35rem;color: orange;}
    
    .d1 .dd2,.d1 .dd3{padding: 0 0.2rem;box-sizing: border-box; background: white;height: 0.8rem;line-height: 0.8rem;display: flex;font-size: 0.3rem;margin-top: 0.2rem;justify-content: space-between;}
    .d1 .dd2 input,.d1 .dd3 input{width: 1.5rem;}
</style>

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转载自www.cnblogs.com/lizhao123/p/9355387.html
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