[英]How to upload an image to Amazon s3 bucket using Java in Android?
[英]Can't upload s3 bucket from android using cognito
大家好,所以我嘗試使用 android 和 cognito 從我的模擬器上傳一張圖片到 s3 存儲桶上:
package com.example.s3_aws;
import androidx.appcompat.app.AppCompatActivity;
import android.annotation.SuppressLint;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import com.amazonaws.auth.CognitoCachingCredentialsProvider;
import com.amazonaws.mobileconnectors.s3.transferutility.TransferListener;
import com.amazonaws.mobileconnectors.s3.transferutility.TransferObserver;
import com.amazonaws.mobileconnectors.s3.transferutility.TransferState;
import com.amazonaws.mobileconnectors.s3.transferutility.TransferUtility;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.CannedAccessControlList;
import java.io.File;
public class MainActivity extends AppCompatActivity {
AmazonS3 s3;
TransferUtility transferUtility;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
credentialsProvider();
setTransferUtility();
upload();
}
public void credentialsProvider(){
// Initialize the Amazon Cognito credentials provider
CognitoCachingCredentialsProvider credentialsProvider = new CognitoCachingCredentialsProvider(
getApplicationContext(),
"idafa", // I actually have here the correct identity pool id
Regions.US_EAST_1// Region
);
setAmazonS3Client(credentialsProvider);
}
public void setAmazonS3Client(CognitoCachingCredentialsProvider credentialsProvider){
s3 = new AmazonS3Client(credentialsProvider);
s3.setRegion(Region.getRegion(Regions.US_EAST_1));
}
public void setTransferUtility(){
transferUtility = new TransferUtility(s3, getApplicationContext());
}
public void upload(){
@SuppressLint("SdCardPath") final TransferObserver observer = transferUtility.upload(
"s3.android.test",
"test.png",
new File("/sdcard/DCIM/Camera/IMG_20200415_001815.jpg"),
CannedAccessControlList.PublicRead
);
observer.setTransferListener(new TransferListener() {
@Override
public void onStateChanged(int id, TransferState state) {
if (state.equals(TransferState.COMPLETED)) {
Log.i("state changed", state+"");
} else if (state.equals(TransferState.FAILED)) {
Log.e("state changed", state+"");
}
}
@Override
public void onProgressChanged(int id, long bytesCurrent, long bytesTotal) {
}
@Override
public void onError(int id, Exception ex) {
}
});
}
}
問題是它在我運行程序時給了我一些錯誤:
訪問 AndroidKeyStore 以檢索 keyAlias 的密鑰時出錯:com.amazonaws.android.auth.aesKeyStoreAlias
檢索用於從持久存儲中解密數據的解密密鑰時出錯。 為請求的 dataKey 返回 null
我還要離開這里給 unauth 角色的內聯策略,可能是這里的問題:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "Statement0",
"Effect": "Allow",
"Action": [
"s3:*"
],
"Resource": "arn:aws:s3:::s3.android.test/*"
}
]
}
這也發生在我身上,這是有效的
添加
-keep class com.amazonaws.mobileconnectors.s3.transferutility.TransferNetworkConnectionType {*;}
到解決我的問題的項目中的proguard-rules.pro
文件。
這是我的 s3 依賴項
//amazon s3 bucket
implementation 'com.amazonaws:aws-android-sdk-core:2.15.1'
implementation 'com.amazonaws:aws-android-sdk-cognito:2.6.23'
implementation 'com.amazonaws:aws-android-sdk-s3:2.15.1'
//implementation 'com.amazonaws:aws-java-sdk:1.11.404'
implementation 'com.amazonaws:aws-android-sdk-ddb:2.2.0'
implementation ('com.amazonaws:aws-android-sdk-mobile-client:2.16.8') { transitive = true; }
在這里看到
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