小程序上传文件

这里用的是uniapp上传图片

<template>
<view class="upload" @click="selectType()">上传附件</view>
</template>
methods: {
selectType() {
    uni.chooseImage({
        count: 1, //默认9
        sizeType: ['compressed'], //可以指定是原图还是压缩图，默认二者都有
        sourceType: ['album'], //从相册选择
        success: function(res) {
            that.uploadImages(res.tempFilePaths);
          }
    });
},
uploadImages(tempFilePaths) {
        let that = this;
        let tmpLen = tempFilePaths.length;
            let k = 0;
            let succ = 0;
            let fa = 0;
            function uploadDo() {
                uni.uploadFile({
                    url: "上传地址",
                    filePath: tempFilePaths[k],
                    name: 'files',
            formData:{
                file:tempFilePaths[k],
            },
                    success: function(res) {
            //成功处理
            }
                    },
                    fail: function() {
                        fa++;
                    },
                    complete: function() {
                        k++;
                        if (k < tmpLen) {
                            uploadDo();
                        } else {
                            showToast("上传成功")
                        }
                    }
                })
            }
            if (tmpLen > 0) {
                uploadDo();
            }
        },

}

注意：需要在微信后台设置上传域名，否则上线后会出现上传失败

image.png