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在使用wx.uploadFileAPI的时候，成功之后返回的data为null？这个是什么，求解
正常来讲他这个data中是应该有值的啊
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我这边公众号前端页面上传的图片没有生成预览 同时没有保存到服务器 在后台也不显示，请问大家知道怎样解决吗？
你好，麻烦通过点击下方“反馈信息”按钮，提供出现问题的。
你好，怎么做上传图片到七牛
已经知道什么问题了
是因为什么呀？
代码贴出来 分析分析
我这个是想把图片传到七牛，这个是起因。下面的是sdk
// created by gpake
(
function
() {
var
config = {
qiniuRegion:
''
,
qiniuImageURLPrefix:
qiniuUploadToken:
qiniuUploadTokenURL:
qiniuUploadTokenFunction:
null
qiniuShouldUseQiniuFileName:
false
}
module.exports = {
init: init,
upload: upload,
// 在整个程序生命周期中，只需要 init 一次即可
// 如果需要变更参数，再调用 init 即可
init(options) {
};
updateConfigWithOptions(options);
updateConfigWithOptions(options) {
if
(options.region) {
config.qiniuRegion = options.region;
else
{
console.error(
'qiniu uploader need your bucket region'
);
(options.uptoken) {
config.qiniuUploadToken = options.uptoken;
(options.uptokenURL) {
config.qiniuUploadTokenURL = options.uptokenURL;
(options.uptokenFunc) {
config.qiniuUploadTokenFunction = options.uptokenFunc;
(options.domain) {
config.qiniuImageURLPrefix = options.domain;
config.qiniuShouldUseQiniuFileName = options.shouldUseQiniuFileName
upload(filePath, success, fail, options, progress, cancelTask) {
== filePath) {
'qiniu uploader need filePath to upload'
return
;
(options) {
(config.qiniuUploadToken) {
doUpload(filePath, success, fail, options, progress, cancelTask);
(config.qiniuUploadTokenURL) {
getQiniuToken(
});
(config.qiniuUploadTokenFunction) {
config.qiniuUploadToken = config.qiniuUploadTokenFunction();
== config.qiniuUploadToken && config.qiniuUploadToken.length > 0) {
'qiniu UploadTokenFunction result is null, please check the return value'
'qiniu uploader need one of [uptoken, uptokenURL, uptokenFunc]'
doUpload(filePath, success, fail, options, progress, cancelTask) {
'qiniu UploadToken is null, please check the init config or networking'
url = uploadURLFromRegionCode(config.qiniuRegion);
fileName = filePath.split(
'//'
)[1];
(options && options.key) {
fileName = options.key;
formData = {
'token'
: config.qiniuUploadToken
(!config.qiniuShouldUseQiniuFileName) {
formData[
'key'
] = fileName
uploadTask = wx.uploadFile({
url: url,
filePath: filePath,
name:
'file'
formData: formData,
success:
(res) {
dataString = res.data
(res.data.hasOwnProperty(
'type'
) && res.data.type ===
'Buffer'
){
dataString = String.fromCharCode.apply(
, res.data.data)
try
dataObject = JSON.parse(dataString);
//do something
imageUrl = config.qiniuImageURLPrefix +
'/'
+ dataObject.key;
dataObject.imageURL = imageUrl;
console.log(dataObject);
(success) {
success(dataObject);
catch
(e) {
console.log(
'parse JSON failed, origin String is: '
+ dataString)
(fail) {
fail(e);
},
fail:
(error) {
console.error(error);
fail(error);
complete:
(res){
console.log(res)
})
uploadTask.onProgressUpdate((res) => {
progress && progress(res)
cancelTask && cancelTask(() => {
uploadTask.abort()
getQiniuToken(callback) {
wx.request({
url: config.qiniuUploadTokenURL,
token = res.data.uptoken;
(token && token.length > 0) {
config.qiniuUploadToken = token;
(callback) {
callback();
'qiniuUploader cannot get your token, please check the uptokenURL or server'
)
'qiniu UploadToken is null, please check the init config or networking: '
+ error);
uploadURLFromRegionCode(code) {
uploadURL =
switch
(code) {
case
'ECN'
: uploadURL =
'https://up.qbox.me'
break
'NCN'
'https://up-z1.qbox.me'
'SCN'
'https://up-z2.qbox.me'
'NA'
'https://up-na0.qbox.me'
'ASG'
'https://up-as0.qbox.me'
default
: console.error(
'please make the region is with one of [ECN, SCN, NCN, NA, ASG]'
uploadURL;
})();
const qiniuUploader = require(
"../../utils/qiniuUploader"
//index.js
// 初始化七牛相关参数
initQiniu() {
options = {
region:
// 华北区
uptokenURL:
shouldUseQiniuFileName:
true
qiniuUploader.init(options);
//获取应用实例
app = getApp()
Page({
data: {
imageObject: {}
//事件处理函数
onLoad:
'onLoad'
that =
this
didPressChooesImage:
didPressChooesImage(that);
didCancelTask:
.data.cancelTask()
didPressChooesImage(that) {
initQiniu();
// 微信 API 选文件
wx.chooseImage({
count: 1,
filePath = res.tempFilePaths[0];
// 交给七牛上传
qiniuUploader.upload(filePath, (res) => {
that.setData({
'imageObject'
: res
}, (error) => {
'error: '
+ JSON.stringify(error));
// , {
// region: 'NCN', // 华北区
// uptokenURL: 'https://[yourserver.com]/api/uptoken',
// domain: 'http://[yourBucketId].bkt.clouddn.com',
// shouldUseQiniuFileName: false
// key: 'testKeyNameLSAKDKASJDHKAS'
// uptokenURL: 'myServer.com/api/uptoken'
// }
// 可以使用上述参数，或者使用 null 作为参数占位符
(progress) => {
'上传进度'
, progress.progress)
'已经上传的数据长度'
, progress.totalBytesSent)
'预期需要上传的数据总长度'
, progress.totalBytesExpectedToSend)
}, cancelTask => that.setData({cancelTask})
这个是测试页面的js，图片能够传到七牛，但是这个API的data没有返回来
写了 有点庞大的 没看懂
自己还是很菜的 不好意思
我好像知道是什么问题了
恭喜 ^_^
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我这边公众号前端页面上传的图片没有生成预览 同时没有保存到服务器 在后台也不显示，请问大家知道怎样解决吗？
你好，怎么做上传图片到七牛
已经知道什么问题了
是因为什么呀？
代码贴出来 分析分析
我这个是想把图片传到七牛，这个是起因。下面的是sdk
// created by gpake(function() {varconfig = {qiniuRegion:'',qiniuImageURLPrefix:'',qiniuUploadToken:'',qiniuUploadTokenURL:'',qiniuUploadTokenFunction:null,qiniuShouldUseQiniuFileName:false}module.exports = {init: init,upload: upload,}// 在整个程序生命周期中，只需要 init 一次即可// 如果需要变更参数，再调用 init 即可functioninit(options) {config = {qiniuRegion:'',qiniuImageURLPrefix:'',qiniuUploadToken:'',qiniuUploadTokenURL:'',qiniuUploadTokenFunction:null,qiniuShouldUseQiniuFileName:false};updateConfigWithOptions(options);}functionupdateConfigWithOptions(options) {if(options.region) {config.qiniuRegion = options.region;}else{console.error('qiniu uploader need your bucket region');}if(options.uptoken) {config.qiniuUploadToken = options.uptoken;}elseif(options.uptokenURL) {config.qiniuUploadTokenURL = options.uptokenURL;}elseif(options.uptokenFunc) {config.qiniuUploadTokenFunction = options.uptokenFunc;}if(options.domain) {config.qiniuImageURLPrefix = options.domain;}config.qiniuShouldUseQiniuFileName = options.shouldUseQiniuFileName}functionupload(filePath, success, fail, options, progress, cancelTask) {if(null== filePath) {console.error('qiniu uploader need filePath to upload');return;}if(options) {updateConfigWithOptions(options);}if(config.qiniuUploadToken) {doUpload(filePath, success, fail, options, progress, cancelTask);}elseif(config.qiniuUploadTokenURL) {getQiniuToken(function() {doUpload(filePath, success, fail, options, progress, cancelTask);});}elseif(config.qiniuUploadTokenFunction) {config.qiniuUploadToken = config.qiniuUploadTokenFunction();if(null== config.qiniuUploadToken && config.qiniuUploadToken.length > 0) {console.error('qiniu UploadTokenFunction result is null, please check the return value');return}doUpload(filePath, success, fail, options, progress, cancelTask);}else{console.error('qiniu uploader need one of [uptoken, uptokenURL, uptokenFunc]');return;}}functiondoUpload(filePath, success, fail, options, progress, cancelTask) {if(null== config.qiniuUploadToken && config.qiniuUploadToken.length > 0) {console.error('qiniu UploadToken is null, please check the init config or networking');return}varurl = uploadURLFromRegionCode(config.qiniuRegion);varfileName = filePath.split('//')[1];if(options && options.key) {fileName = options.key;}varformData = {'token': config.qiniuUploadToken};if(!config.qiniuShouldUseQiniuFileName) {formData['key'] = fileName}varuploadTask = wx.uploadFile({url: url,filePath: filePath,name:'file',formData: formData,success:function(res) {vardataString = res.dataif(res.data.hasOwnProperty('type') && res.data.type ==='Buffer'){dataString = String.fromCharCode.apply(null, res.data.data)}try{vardataObject = JSON.parse(dataString);//do somethingvarimageUrl = config.qiniuImageURLPrefix +'/'+ dataObject.key;dataObject.imageURL = imageUrl;console.log(dataObject);if(success) {success(dataObject);}}catch(e) {console.log('parse JSON failed, origin String is: '+ dataString)if(fail) {fail(e);}}},fail:function(error) {console.error(error);if(fail) {fail(error);}},complete:function(res){console.log(res)}})uploadTask.onProgressUpdate((res) => {progress && progress(res)})cancelTask && cancelTask(() => {uploadTask.abort()})}functiongetQiniuToken(callback) {wx.request({url: config.qiniuUploadTokenURL,success:function(res) {vartoken = res.data.uptoken;if(token && token.length > 0) {config.qiniuUploadToken = token;if(callback) {callback();}}else{console.error('qiniuUploader cannot get your token, please check the uptokenURL or server')}},fail:function(error) {console.error('qiniu UploadToken is null, please check the init config or networking: '+ error);}})}functionuploadURLFromRegionCode(code) {varuploadURL =null;switch(code) {case'ECN': uploadURL ='https://up.qbox.me';break;case'NCN': uploadURL ='https://up-z1.qbox.me';break;case'SCN': uploadURL ='https://up-z2.qbox.me';break;case'NA': uploadURL ='https://up-na0.qbox.me';break;case'ASG': uploadURL ='https://up-as0.qbox.me';break;default: console.error('please make the region is with one of [ECN, SCN, NCN, NA, ASG]');}returnuploadURL;}})();const qiniuUploader = require("../../utils/qiniuUploader");//index.js// 初始化七牛相关参数functioninitQiniu() {varoptions = {region:'SCN',// 华北区uptokenURL:'',shouldUseQiniuFileName:true};qiniuUploader.init(options);}//获取应用实例varapp = getApp()Page({data: {imageObject: {}},//事件处理函数onLoad:function() {console.log('onLoad')varthat =this;},didPressChooesImage:function() {varthat =this;didPressChooesImage(that);},didCancelTask:function() {this.data.cancelTask()}});functiondidPressChooesImage(that) {initQiniu();// 微信 API 选文件wx.chooseImage({count: 1,success:function(res) {varfilePath = res.tempFilePaths[0];// 交给七牛上传qiniuUploader.upload(filePath, (res) => {that.setData({'imageObject': res});}, (error) => {console.error('error: '+ JSON.stringify(error));},// , {// region: 'NCN', // 华北区// uptokenURL: 'https://[yourserver.com]/api/uptoken',// domain: 'http://[yourBucketId].bkt.clouddn.com',// shouldUseQiniuFileName: false// key: 'testKeyNameLSAKDKASJDHKAS'// uptokenURL: 'myServer.com/api/uptoken'// }null,// 可以使用上述参数，或者使用 null 作为参数占位符(progress) => {console.log('上传进度', progress.progress)console.log('已经上传的数据长度', progress.totalBytesSent)console.log('预期需要上传的数据总长度', progress.totalBytesExpectedToSend)}, cancelTask => that.setData({cancelTask}));}})}这个是测试页面的js，图片能够传到七牛，但是这个API的data没有返回来
写了 有点庞大的 没看懂
自己还是很菜的 不好意思
我好像知道是什么问题了
恭喜 ^_^