StreamUtil

本文介绍了一个简单的Java工具类StreamUtils,该类提供了一个静态方法用于从输入流中读取字符串。通过创建一个字节数组输出流,逐块读取输入流中的数据,并将其转换为字符串返回。

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public class StreamUtils {
	public static String stringFromStream(InputStream in) throws IOException{
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		int len = 0 ;
		byte[] buf = new byte[1024];
		while((len=in.read(buf))!=-1){
			os.write(buf,0,len);
		}
		os.flush();
		String string = new String(os.toString());
		in.close();
		os.close();
		return string;		
	}
}

2025-08-04 15:58:53.163 DEBUG [tech-base-common]-[dev] --- [http-nio-30002-exec-3]-[,] [c.s.t.m.DFSResourceMapper.selectList ,debug,135] : ==> Preparing: SELECT id,resource_id,app_name,endpoint,bucket_name,file_path,file_name,expire_hour,version_id,upload_time,status,error_message,network_type,create_time,update_time,create_by,update_by,is_deleted FROM t_tbc_resource WHERE (resource_id = ? AND is_deleted = ?) 2025-08-04 15:58:53.163 DEBUG [tech-base-common]-[dev] --- [http-nio-30002-exec-3]-[,] [c.s.t.m.DFSResourceMapper.selectList ,debug,135] : ==> Parameters: 7cuOnqUsUzZffxBaYD5EKi(String), 0(Integer) 2025-08-04 15:58:53.167 DEBUG [tech-base-common]-[dev] --- [http-nio-30002-exec-3]-[,] [c.s.t.m.DFSResourceMapper.selectList ,debug,135] : <== Total: 1 2025-08-04 15:58:53.172 ERROR [tech-base-common]-[dev] --- [http-nio-30002-exec-3]-[,] [c.s.t.c.advice.GlobalExceptionHandler ,handleErrorResponse,61] : GlobalExceptionHandler ErrorResponseException, io.minio.errors.ErrorResponseException: The specified key does not exist. at io.minio.S3Base$1.$sw$original$onResponse$vg3qou3(S3Base.java:747) at io.minio.S3Base$1.$sw$original$onResponse$vg3qou3$accessor$$sw$sb7edj2(S3Base.java) at io.minio.S3Base$1$$sw$auxiliary$pnhov63.call(Unknown Source) at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86) at io.minio.S3Base$1.onResponse(S3Base.java) at okhttp3.internal.connection.RealCall$AsyncCall.$sw$original$run$3opc2g1(RealCall.kt:519) at okhttp3.internal.connection.RealCall$AsyncCall.$sw$original$run$3opc2g1$accessor$$sw$gcmnir0(RealCall.kt) at okhttp3.internal.connection.RealCall$AsyncCall$$sw$auxiliary$4jo1t90.call(Unknown Source) at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:86) at okhttp3.internal.connection.RealCall$AsyncCall.run(RealCall.kt) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) at java.base/java.lang.Thread.run(Thread.java:840) 这是报错信息 @GetMapping({"/tbc/dfs/rid/{resourceId}"}) public ResponseEntity<InputStreamResource> getResource(@PathVariable String resourceId) throws Exception { DFSResource dfsResource = this.dfsAppInfoService.getResourceById(resourceId); if (null == dfsResource) { log.error("请求resource接口:resourceId:[{}] 不存在", resourceId); throw new TBCBaseException(ResultCode.RESOURCE_ID_NOT_EXIST.getCode(), resourceId + "不存在"); } else { DateTime uploadTime = DateUtil.date(dfsResource.getUploadTime()); DateTime now = DateUtil.date(); DateTime expireTime = DateUtil.offsetHour(uploadTime, dfsResource.getExpireHour()); if (now.isAfter(expireTime)) { log.info("请求resource接口:resourceId:[{}] 已过期", resourceId); throw new TBCBaseException(ResultCode.RESOURCE_EXPIRED); } else { DFSAppInfo dfsAppInfo = this.dfsAppInfoService.getDFSAppInfo(dfsResource.getAppName(), dfsResource.getBucketName()); if (null == dfsAppInfo) { log.error("请求resource接口:app信息不存在:appName: [{}] bucketName:[{}] 已过期", dfsResource.getAppName(), dfsResource.getBucketName()); throw new AppRegisterException(ResultCode.MINIO_APP_NOT_REGISTER); } else { MinioClient minioClient = this.minioContainer.getMinioClient(dfsResource.getEndpoint(), dfsAppInfo); String objectName = String.format("%s/%s", dfsResource.getFilePath(), dfsResource.getFileName()); GetObjectArgs getObjectArgs = (GetObjectArgs)((GetObjectArgs.Builder)((GetObjectArgs.Builder)((GetObjectArgs.Builder)GetObjectArgs.builder().bucket(dfsResource.getBucketName())).object(objectName)).versionId(dfsResource.getVersionId())).build(); GetObjectResponse response = minioClient.getObject(getObjectArgs); return StreamUtil.processResponse(dfsResource.getFileName(), response); } } } }这是代码 分析下原因
最新发布
08-05
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