90 lines
3.6 KiB
JavaScript
90 lines
3.6 KiB
JavaScript
var config = require('./config');
|
|
|
|
var uploadFile = function () {
|
|
// 请求用到的参数
|
|
// var prefix = 'https://cos.' + config.Region + '.myqcloud.com/' + config.Bucket + '/'; // 这个是后缀式，签名也要指定 Pathname: '/' + config.Bucket + '/'
|
|
var prefix = 'https://' + config.Bucket + '.cos.' + config.Region + '.myqcloud.com/';
|
|
|
|
// 对更多字符编码的 url encode 格式
|
|
var camSafeUrlEncode = function (str) {
|
|
return encodeURIComponent(str)
|
|
.replace(/!/g, '%21')
|
|
.replace(/'/g, '%27')
|
|
.replace(/\(/g, '%28')
|
|
.replace(/\)/g, '%29')
|
|
.replace(/\*/g, '%2A');
|
|
};
|
|
|
|
// 获取临时密钥
|
|
var getCredentials = function (options, callback) {
|
|
wx.request({
|
|
method: 'GET',
|
|
url: 'http://127.0.0.1:3000/post-policy?key=' + encodeURIComponent(options.Key), // 服务端签名，参考 server 目录下的两个签名例子
|
|
dataType: 'json',
|
|
success: function (result) {
|
|
var data = result.data;
|
|
if (data) {
|
|
callback(data);
|
|
} else {
|
|
wx.showModal({title: '临时密钥获取失败', content: JSON.stringify(data), showCancel: false});
|
|
}
|
|
},
|
|
error: function (err) {
|
|
wx.showModal({title: '临时密钥获取失败', content: JSON.stringify(err), showCancel: false});
|
|
}
|
|
});
|
|
};
|
|
|
|
// 上传文件
|
|
var uploadFile = function (filePath) {
|
|
var Key = filePath.substr(filePath.lastIndexOf('/') + 1); // 这里指定上传的文件名
|
|
getCredentials({Key: Key}, function (credentials) {
|
|
var formData = {
|
|
'key': Key,
|
|
'success_action_status': 200,
|
|
'Content-Type': '',
|
|
'q-sign-algorithm': credentials.qSignAlgorithm,
|
|
'q-ak': credentials.qAk,
|
|
'q-key-time': credentials.qKeyTime,
|
|
'q-signature': credentials.qSignature,
|
|
'policy': credentials.policy,
|
|
};
|
|
if (credentials.securityToken) formData['x-cos-security-token'] = credentials.securityToken;
|
|
var requestTask = wx.uploadFile({
|
|
url: prefix,
|
|
name: 'file',
|
|
filePath: filePath,
|
|
formData: formData,
|
|
success: function (res) {
|
|
var url = prefix + camSafeUrlEncode(Key).replace(/%2F/g, '/');
|
|
if (res.statusCode === 200) {
|
|
wx.showModal({title: '上传成功', content: url, showCancel: false});
|
|
} else {
|
|
wx.showModal({title: '上传失败', content: JSON.stringify(res), showCancel: false});
|
|
}
|
|
console.log(res.statusCode);
|
|
console.log(url);
|
|
},
|
|
fail: function (res) {
|
|
wx.showModal({title: '上传失败', content: JSON.stringify(res), showCancel: false});
|
|
}
|
|
});
|
|
requestTask.onProgressUpdate(function (res) {
|
|
console.log('正在进度:', res);
|
|
});
|
|
});
|
|
};
|
|
|
|
// 选择文件
|
|
wx.chooseImage({
|
|
count: 1, // 默认9
|
|
sizeType: ['original'], // 可以指定是原图还是压缩图，这里默认用原图
|
|
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) {
|
|
uploadFile(res.tempFiles[0].path);
|
|
}
|
|
})
|
|
};
|
|
|
|
module.exports = uploadFile;
|