Android 在gradle构建期间检索AWS数据
我试图从AWS(例如从cognito或s3)获取一些值。我认为合适的做法是在build.gradle中定义一个任务,该任务在gradle运行时在构建时执行。我遵循了文档()中的说明,但在尝试使用已导入的AWS依赖项中的方法时,出现了“无法解析符号”错误 这些导入的依赖项遵循教程中给出的示例:Android 在gradle构建期间检索AWS数据,android,amazon-web-services,gradle,dependencies,Android,Amazon Web Services,Gradle,Dependencies,我试图从AWS(例如从cognito或s3)获取一些值。我认为合适的做法是在build.gradle中定义一个任务,该任务在gradle运行时在构建时执行。我遵循了文档()中的说明,但在尝试使用已导入的AWS依赖项中的方法时,出现了“无法解析符号”错误 这些导入的依赖项遵循教程中给出的示例: ... dependencies { implementation platform('software.amazon.awssdk:bom:2.X.X') implementation 'sof
...
dependencies {
implementation platform('software.amazon.awssdk:bom:2.X.X')
implementation 'software.amazon.awssdk:kinesis'
...
}
代码中的gradle中出现错误(例如,无法识别KinesClient):
如何在构建期间从gradle访问AWS值?这是最根本的问题。如果我提供的信息不清楚,请告诉我。这里有一个完整的示例(V1和V2),说明如何使用JavaS3API和一个运行正常的build.gradle文件 JAVA V1 下面是S3Java代码:
package com.amazon.s3;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.SdkClientException;
import com.amazonaws.auth.profile.ProfileCredentialsProvider;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.CreateBucketRequest;
import com.amazonaws.services.s3.model.GetBucketLocationRequest;
import java.io.IOException;
public class CreateBucket {
public static void main(String[] args) throws IOException {
Regions clientRegion = Regions.DEFAULT_REGION;
String bucketName = "My Bucket";
try {
AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
.withCredentials(new ProfileCredentialsProvider())
.withRegion(clientRegion)
.build();
if (!s3Client.doesBucketExistV2(bucketName)) {
// Because the CreateBucketRequest object doesn't specify a region, the
// bucket is created in the region specified in the client.
s3Client.createBucket(new CreateBucketRequest(bucketName));
// Verify that the bucket was created by retrieving it and checking its location.
String bucketLocation = s3Client.getBucketLocation(new GetBucketLocationRequest(bucketName));
System.out.println("Bucket location: " + bucketLocation);
}
} catch (AmazonServiceException e) {
// The call was transmitted successfully, but Amazon S3 couldn't process
// it and returned an error response.
e.printStackTrace();
} catch (SdkClientException e) {
// Amazon S3 couldn't be contacted for a response, or the client
// couldn't parse the response from Amazon S3.
e.printStackTrace();
}
}
}
这是build.gradle文件:
plugins {
id 'java'
}
group 'AWSS3_Gra'
version '1.0-SNAPSHOT'
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
implementation platform('com.amazonaws:aws-java-sdk-bom:1.11.228')
implementation 'com.amazonaws:aws-java-sdk-s3'
testCompile group: 'junit', name: 'junit', version: '4.11'
}
JAVA V2
下面是S3Java代码:
package com.example.s3;
import software.amazon.awssdk.core.SdkField;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.ListObjectsRequest;
import software.amazon.awssdk.services.s3.model.ListObjectsResponse;
import software.amazon.awssdk.services.s3.model.S3Exception;
import software.amazon.awssdk.services.s3.model.S3Object;
import java.util.List;
import java.util.ListIterator;
public class ListObjects {
public static void main(String[] args) {
String bucketName = "BucketName";
Region region = Region.US_WEST_2;
S3Client s3 = S3Client.builder()
.region(region)
.build();
ListBucketObjects(s3, bucketName);
}
public static void ListBucketObjects( S3Client s3, String bucketName ) {
try {
ListObjectsRequest listObjects = ListObjectsRequest
.builder()
.bucket(bucketName)
.build();
ListObjectsResponse res = s3.listObjects(listObjects);
List<S3Object> objects = res.contents();
for (ListIterator iterVals = objects.listIterator(); iterVals.hasNext(); ) {
S3Object myValue = (S3Object) iterVals.next();
System.out.print("\n The name of the key is " + myValue.key());
System.out.print("\n The object is " + calKb(myValue.size()) + " KBs");
System.out.print("\n The owner is " + myValue.owner());
}
} catch (S3Exception e) {
System.err.println(e.awsErrorDetails().errorMessage());
System.exit(1);
}
}
//convert bytes to kbs
private static long calKb(Long val) {
return val/1024;
}
}
希望这有助于
PS-以下是有关此信息的AWS开发指南链接:事实证明,定义依赖项应该在构建脚本中完成,以便在构建期间从gradle访问它们:
buildscript {
repositories {
...
}
dependencies {
...
classpath 'software.amazon.awssdk:kinesis:VERSION'
}
}
然后,您必须在任务开始之前导入您将要使用的类,就像在java类中所做的那样,这样就可以了
group 'aws.test'
version '1.0'
apply plugin: 'java'
sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
implementation platform('software.amazon.awssdk:bom:2.10.30')
implementation 'software.amazon.awssdk:s3'
testImplementation group: 'junit', name: 'junit', version: '4.11'
}
buildscript {
repositories {
...
}
dependencies {
...
classpath 'software.amazon.awssdk:kinesis:VERSION'
}
}