由于uniapp提供的API在app端只能上传图片和视频，不能上传其他文件，说以只能借助插件了。
ios端用的这个插件 获取到文件对象 免费的
ios-uniapp 文件选取word,pdf,xls等文件 - DCloud 插件市场 uniapp iOS文件选取 iOS选取text,pdf,word,doc,xls,ppthttps://ext.dcloud.net.cn/plugin?id=1311
这个是返回一个 filePath 可用直接用于 uni.uploadFile 上传的路径，后面自己又改的File对象。
安卓部分主要通过使用 Android 平台的相关类来实现选择文件和获取文件本地路径的功能，
使用这些原生 Android 的类和方法，代码能够处理不同类型的文件选择器返回的文件 URI，并获取
文件的本地路径。根据文件的 URI 类型和授权部分，代码执行相应的处理逻辑，从而实现选择文
件和获取文件本地路径、File对象的功能。
微信小程序和H5那就简单了uniapp提供的API就可以
示例代码：
methods: {
sendFile() {
// #ifdef H5
uni.chooseFile({
count: 1,
// extension:['.zip','.doc'],
success: (res) => {
console.log(res);
console.log('file:', res.tempFiles[0]); // File对象
}
});
// #endif
// #ifdef MP-WEIXIN
console.log('WEIXIN');
wx.chooseMessageFile({
count: 10,
type: 'file',
success: (res) => {
console.log('file:', res.tempFiles[0]); // File对象
}
})
// #endif
// #ifdef APP-PLUS
switch (uni.getSystemInfoSync().platform) {
case 'android':
this.chooseFile((path) => {
console.log('文件本地路径:', path);
plus.io.requestFileSystem(plus.io.PRIVATE_DOC, (fs) => {
fs.root.getFile(path, {
create: true
}, (fileEntry) => {
fileEntry.file((file) => {
let fileReader = new plus.io.FileReader();
console.log(file);
console.log(fileReader);
console.log("文件对象:" + JSON.stringify(file)); // File对象
}, (error) => {
console.log("读写出现异常", error);
});
});
});
})
break;
case 'ios':
this.filePathIos()
break;
}
// #endif
},
// ios 选择文件
filePathIos() {
// 示例代码:
const iOSFileSelect = uni.requireNativePlugin('YangChuan-YCiOSFileSelect');
// apple document-types 文件类型参数 https://developer.apple.com/library/archive/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html
// 文件类型参数
let params = {
"document-types": ["public.text", "public.zip", "public.data", "com.adobe.pdf",
"com.microsoft.word.doc", "com.adobe.postscript", "com.microsoft.excel.xls",
"com.adobe.encapsulated- postscript", "com.microsoft.powerpoint.ppt",
"com.adobe.photoshop- image", "com.microsoft.word.rtf", "com.microsoft.advanced- systems-format",
"com.microsoft.advanced- stream-redirector"
],
"isBase64": 0
}
iOSFileSelect.show(params, result => {
let status = parseInt(result.status);
// 状态200选取成功
if (status == 200) {
let url = result.url;
uni.downloadFile({
url: url,
success: (res) => {
if (res.statusCode == 200) {
// filePath 可用于 uni.uploadFile 上传的路径
let filePath = res.tempFilePath;
let name = filePath.split("/")[filePath.split("/").length - 1];
console.log(result);
const uploadTask = uni.uploadFile({
url: 'https://上传接口', //仅为示例，非真实的接口地址
filePath: filePath,
name: 'file',
formData: {
'user': 'test'
},
success: (uploadFileRes) => {
console.log(uploadFileRes.data);
}
});
uploadTask.onProgressUpdate((res) => {
console.log(res);
console.log('上传进度' + res.progress);
console.log('已经上传的数据长度' + res.totalBytesSent);
console.log('预期需要上传的数据总长度' + res.totalBytesExpectedToSend);
// 测试条件，取消上传任务。
if (res.progress > 1) {
uploadTask.abort();
let size = res.totalBytesExpectedToSend
let file = {
path: filePath,
name: name,
size: size,
type: 'file'
}
console.log(file); // File对象
}
});
}
}
});
}
});
},
// 安卓选择文件
chooseFile(callback) {
console.log('choodeFile')
var CODE_REQUEST = 1000;
var main = plus.android.runtimeMainActivity();
var Intent = plus.android.importClass('android.content.Intent');
var intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("*/*");
main.onActivityResult = (requestCode, resultCode, data) => {
if (requestCode == CODE_REQUEST) {
var uri = data.getData();
console.log('uri:', uri)
// uri是编码过的，需要转换为本地路径
plus.android.importClass(uri);
var Build = plus.android.importClass('android.os.Build');
var isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
var DocumentsContract = plus.android.importClass('android.provider.DocumentsContract');
if (isKitKat && DocumentsContract.isDocumentUri(main, uri)) {
console.log('getAuthority:', uri.getAuthority())
if (uri.getAuthority() == "com.android.externalstorage.documents") {
let docId = DocumentsContract.getDocumentId(uri);
let split = docId.split(":");
let type = split[0];
if (type === "primary") {
let Environment = plus.android.importClass('android.os.Environment');
callback(Environment.getExternalStorageDirectory() + "/" + split[1]);
} else {
let System = plus.android.importClass('java.lang.System');
let sdPath = System.getenv("SECONDARY_STORAGE");
if (sdPath) {
callback(sdPath + "/" + split[1]);
}
}
} else if (uri.getAuthority() == "com.android.providers.downloads.documents") {
var id = DocumentsContract.getDocumentId(uri);
var ContentUris = plus.android.importClass('android.content.ContentUris');
var contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), id);
callback(this.getDataColumn(main, contentUri, null, null));
} else if (uri.getAuthority() == "com.android.providers.media.documents") {
var docId = DocumentsContract.getDocumentId(uri);
console.log('docId:', docId)
var split = docId.split(":");
var type = split[0];
var MediaStore = plus.android.importClass('android.provider.MediaStore');
if ("image" == type) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video" == type) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio" == type) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
var selection = "_id=?";
var selectionArgs = new Array();
selectionArgs[0] = split[1];
callback(this.getDataColumn(main, contentUri, selection, selectionArgs))
}
} else if (uri.getScheme() == "content") {
if (uri.getAuthority() == "media") {
callback(this.getDataColumn(main, uri, null, null));
} else {
callback(uri.getPath());
}
} else if (uri.getScheme() == "file") {
// File
console.log("file");
callback(uri.getPath());
}
}
}
main.startActivityForResult(intent, CODE_REQUEST);
},
// main, uri, selection, selectionArgs
getDataColumn(main, uri, selection, selectionArgs) {
plus.android.importClass(main.getContentResolver());
var cursor = main.getContentResolver().query(uri, ['_data'], selection, selectionArgs, null);
plus.android.importClass(cursor);
if (cursor != null && cursor.moveToFirst()) {
var column_index = cursor.getColumnIndexOrThrow('_data');
var result = cursor.getString(column_index)
cursor.close();
return result;
}
return null;
}
}
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