微信小程序：上传图片到别的域名文件下

效果

wxml

<!-- 上传照片 -->
<view class="addbtn"><view class='pic' name="fault_photo" wx:for="{{imgs}}" wx:for-item="item" wx:key="*this"><image class='weui-uploader_img ' src="{{item}}" data-index="{{index}}" mode="aspectFill" bindtap="previewImg"><image src='{{clear}}' class="delete-btn" data-index="{{index}}" catchtap="deleteImg"></image></image></view><view class="addphoto" bindtap="add_photo"><image src="{{add}}" class="addtext">+</image></view>
</view>
<button bindtap="sumbit">提交</button>

wxss

/* 上传照片样式 */
.line3 {padding-top: 8%;background-color: white;width: 100%;padding-bottom: 4%;/* border: 1px solid black; */
}.addbtn {padding-top: 5%;margin-left: 2%;padding-bottom: 5%;/* border: 1px solid black; */
}.pic {float: left;position: relative;margin-right: 9px;margin-bottom: 9px;/* border: 1px solid black;  */
}.weui-uploader_img {/* border: 1px solid black; */width: 150rpx;height: 150rpx;
}.delete-btn {position: absolute;top: -14rpx;right: -14rpx;width: 20px;height: 20px;z-index: 9999;
}.addphoto {width: 150rpx;height: 150rpx;display: flex;flex-direction: column;align-items: center;justify-content: center;/* background-color: #F6F6F6; */border: 1px dashed #C6C6C6;
}.addtext {/* border: 1px solid black; *//* font-size: 50px; */width: 80rpx;height: 80rpx;color: #BFC1C2;
}

js

const app = getApp()
Page({data: {//上传照片图片clear: app.globalData.icon + 'photo/clear.png',add: app.globalData.icon + 'photo/photo.png',imgs: [],allphoto: [],},//上传图片add_photo(e) {var that = this;var imgs = this.data.imgs;if (imgs.length >= 9) {this.setData({lenMore: 1});setTimeout(function () {that.setData({lenMore: 0});}, 2500);return false;}wx.chooseImage({ //图片相机的选择chooseMedia// count: 1, // 默认9sizeType: ['original', 'compressed'], // 可以指定是原图还是压缩图，默认二者都有sourceType: ['album', 'camera'], // 可以指定来源是相册还是相机，默认二者都有success: function (res) {// 返回选定照片的本地文件路径列表，tempFilePath可以作为img标签的src属性显示图片var tempFilePaths = res.tempFilePaths;// console.log('返回图片路径信息', res.tempFilePaths)var imgs = that.data.imgs;for (var i = 0; i < tempFilePaths.length; i++) {if (imgs.length >= 9) {that.setData({imgs: imgs});return false;} else {imgs.push(tempFilePaths[i]);}}that.setData({imgs: imgs});console.log('图片合集', that.data.imgs);}});},// 删除图片deleteImg: function (e) {var imgs = this.data.imgs;var index = e.currentTarget.dataset.index;imgs.splice(index, 1);this.setData({imgs: imgs});// console.log('上传图片合集', this.data.imgs);},// 预览图片previewImg: function (e) {//获取当前图片的下标var index = e.currentTarget.dataset.index;//所有图片var imgs = this.data.imgs;wx.previewImage({//当前显示图片current: imgs[index],//所有图片urls: imgs})},sumbit(){console.log(this.data.imgs)//先执行图片上传let imgs = this.data.imgs// console.log(this.data.imgs)for (var i = 0; i < this.data.imgs.length; i++) {var that = thiswx.uploadFile({//别的域名文件url: 'https://域名/api/api_wxmini.php',filePath: imgs[i],name: "file",header: {"content-type": "multipart/form-data"},success: function (res) {if (res.statusCode == 200) {wx.showToast({title: "上传成功",icon: "none",duration: 1500})console.log(res.data)that.data.allphoto.push(res.data) //向数组末端插入数据}},fail: function (err) {wx.showToast({title: "上传失败",icon: "none",duration: 2000})},})}}
})

php

别的文件路径

图片路径 

代码

<?php$file = $_FILES['file']; //获取小程序传来的图片$imgdirs = "../update_img/";//文件夹名称(/upload/update_img/)mkdirs($imgdirs);//创建$imgdirs文件夹//获取图片文件的名字$fileName = $_FILES["file"]["name"];// //获取图片类型$file_type = $_FILES["file"]["type"];$type = '';//判断是否是图片switch ($file_type) {case 'image/png':$type = '.png';break;case 'image/gif':$type = '.gif';break;case 'image/jpeg':$type = '.jpg';break;}//图片保存的路径$savepath = $imgdirs.$fileName; //upload/update_img/文件名// 临时文件移动到指定文件夹$rs = move_uploaded_file($_FILES["file"]["tmp_name"],$savepath);//成功上传文件if($rs) {$url = 'SO/'.$fileName;echo json_encode($url, JSON_UNESCAPED_SLASHES);} else {$result=array('errno'=>1,'message'=>'失败信息');echo json_encode($result);}//创建文件夹 权限问题function mkdirs($dir, $mode = 0777){if (is_dir($dir) || @mkdir($dir, $mode)) return TRUE;if (!mkdirs(dirname($dir), $mode)) return FALSE;return @mkdir($dir, $mode);}
?>

微信公众平台

上添加需要访问的域名