本文介绍了React Native 上传图片失败的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着跟版网的小编来一起学习吧！
问题描述
过去两天我一直在努力破解使用 React Native 上传到 MongoDB 的文件/图像.我从字面上阅读了所有相关的论坛，但没有运气.我阅读了几个论坛，他们给出了一个示例，但我没有成功.这是我编写的示例代码.
I am struggling from the past 2 days to crack the file/image upload with React Native to MongoDB. I literally read all the related forums but there is no luck. I read couple of forums and they gave a sample example but I wasn't succeeded. Here are the sample codes that I wrote.
const { uri } = await this.camera.takePictureAsync(options);
let formData = new FormData();
formData.append('file', {
uri: uri.replace("file:///", ""),
type:'image/jpg', name:'userProfile.jpg',
});
const rawResponse = await fetch('http://192.168.1.5:9000/api/contrats/upload', {
method: 'POST',
body: formData,
headers: {
Accept: 'application/json',
'Content-Type': 'multipart/form-data; charset=utf-8',
},
});
const content = await rawResponse.json();
console.log(content);var storage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, __basedir + '/resources/static/assets/uploads');
},
filename: (req, file1, cb) => {
console.log("file : ", file);
let name = file.originalname || file.name;
let extension = name.substr((~-name.lastIndexOf(".") >>> 0) + 2);
let filename = generateId() +"."+ extension; nsion;
cb(null, filename)
},
});
var upload = multer({
storage: storage,
limits: {
fileSize: 1024 * 1024 * 5
}
});推荐答案
试试下面的
let body = new FormData();
let filename = uri.split('/').pop();
body.append('file', {uri:uri, name:filename, type:'image/jpg', });
const header = {
'Accept': 'application/json',
'content-type': 'multipart/form-data',
}
fetch("http://192.168.1.5:9000/api/contrats/upload", {
method: 'POST',
headers: header,
body:body,
}).then(response => response.json())
.then(res => console.log(res))
.catch(err => console.log("err", err)
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