如何将base64从ionic或angular发送到nodejs服务器？
提问于 2020-05-23 07:02:40
Backend save file on file system pickImage(sourceType) { const选项: CameraOptions ={ quality: 100，sourceType: sourceType，destinationType: this.camera.DestinationType.DATA_URL，encodingType: this.camera.EncodingType.JPEG，mediaType: this.camera.MediaType.PICTURE，correctOrientation: true，}；// quality => {
this.camera.getPicture(options).then(
(imageData) => {
const formData = new FormData();
formData.append('file', imageData);
let newName = this.randomString(6) + new Date().getTime() + "." + file.type;
alert(JSON.stringify(formData));
this.http.post("//localhost:3000/api/v1/Admin/saveAllImages", formData)
.pipe(
finalize(() => {
// loading.dismiss();
})
)
.subscribe(res => {
if (res['success']) {
this.presentToast('File upload complete.')
} else {
this.presentToast('File upload failed.')
}
});
};
}
回答 1
Stack Overflow用户
回答已采纳
发布于 2020-05-23 09:12:59
let formData = new FormData();
let blob = this.DataURIToBlob(this.imageData);
formData.append('file', blob)
DataURIToBlob(dataURI: string) {
const splitDataURI = dataURI.split(',')
const byteString = splitDataURI[0].indexOf('base64') >= 0 ? atob(splitDataURI[1]) : decodeURI(splitDataURI[1])
const mimeString = splitDataURI[0].split(':')[1].split(';')[0]
const ia = new Uint8Array(byteString.length)
for (let i = 0; i < byteString.length; i++)
ia[i] = byteString.charCodeAt(i)
return new Blob([ia], { type: mimeString })
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/61968578
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