harmony 鸿蒙@ohos.file.fileuri (File URI)
@ohos.file.fileuri (File URI)
The fileUri module allows the uniform resource identifier (URI) of a file to be obtained based on the file path. With the file URI, you can use the APIs provided by @ohos.file.fs to operate the file.
NOTE
The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
Modules to Import
import fileuri from "@ohos.file.fileuri";
Before using this module, you need to obtain the path of the file in the application sandbox. The following is an example:
Stage Model
import UIAbility from '@ohos.app.ability.UIAbility';
import window from '@ohos.window';
export default class EntryAbility extends UIAbility {
onWindowStageCreate(windowStage: window.WindowStage) {
let context = this.context;
let pathDir = context.filesDir;
}
}
FA Model
import featureAbility from '@ohos.ability.featureAbility';
let context = featureAbility.getContext();
context.getFilesDir().then((data) => {
let pathDir = data;
})
For details about how to obtain the FA model context, see Context.
FileUri10+
Attributes
System capability: SystemCapability.FileManagement.AppFileService
| Name | Type | Readable | Writable | Description |
|---|---|---|---|---|
| path10+ | string | Yes | No | Path of the file corresponding to the URI. |
| name10+ | string | Yes | No | Name of the file. |
constructor10+
constructor(uriOrPath: string)
A constructor used to create a FileUri instance.
System capability: SystemCapability.FileManagement.AppFileService
Parameters
| Name | Type | Mandatory | Description |
|---|---|---|---|
| uriOrPath | string | Yes | URI or path. The following types of URIs are available: - Application sandbox URI: file://<bundleName>/<sandboxPath> - URI of the user’s document: file://docs/storage/Users/currentUser/<publicPath> - URI of the user’s media asset: file://media/<mediaType>/IMG_DATATIME_ID/<displayName> |
Error codes
For details about the error codes, see File Management Error Codes. |ID |Error Message | |—————————-|———-| |13900005|I/O error| |13900042|Unknown error|
Example
let path = pathDir + '/test';
let uri = fileuri.getUriFromPath(filePath); // file://<packageName>/data/storage/el2/base/haps/entry/files/test
let fileUriObject = new fileuri.FileUri(uri);
console.info("The name of FileUri is " + fileUriObject.name);
toString10+
toString(): string
System capability: SystemCapability.FileManagement.AppFileService
Obtains the URI of the string type.
Return value
| Type | Description |
|---|---|
| string | URI of the string type obtained. |
Example
let path = pathDir + '/test';
let fileUriObject = new fileuri.FileUri(path);
console.info("The uri of FileUri is " + fileUriObject.toString());
fileuri.getUriFromPath
getUriFromPath(path: string): string
Obtains the URI of a file in synchronous mode.
System capability: SystemCapability.FileManagement.AppFileService
Parameters
| Name | Type | Mandatory | Description |
|---|---|---|---|
| path | string | Yes | Path of the file in the application sandbox. |
Return value
| Type | Description |
|---|---|
| string | File URI obtained. |
Error codes
For details about the error codes, see File Management Error Codes. |ID |Error Message | |—————————-|———-| |401|The input parameter is invalid|
Example
let filePath = pathDir + "/test";
let uri = fileuri.getUriFromPath(filePath);
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