关于腾讯云COS文件上传

在网上看了很多cos的上传，到处都是坑还很麻烦，而且cos给出的api也很坑，不会看源码真的是会走很多弯路，废话不多说直接上代码。。
import com.qcloud.cos.COSClient;
import com.qcloud.cos.ClientConfig;
import com.qcloud.cos.auth.BasicCOSCredentials;
import com.qcloud.cos.auth.COSCredentials;
import com.qcloud.cos.exception.CosClientException;
import com.qcloud.cos.exception.CosServiceException;
import com.qcloud.cos.model.*;
import com.qcloud.cos.region.Region;
import com.qcloud.cos.transfer.*;

import java.io.File;
import java.io.InputStream;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

// TransferManager提供异步的上传文件, 下载文件，copy文件的高级API接口
// 可以根据文件大小自动的选择上传接口或者copy接口,方便用户使用, 无需自行封装较复杂的分块上传或者分块copy
public class TransferManagerDemo {
	public static final int APP_ID = 你的APPID;
	public static final String SECRET_ID = "你的SECRET_ID";
	public static final String SECRET_KEY = "你的SECRET_KEY";
	public static final String BUCKETNAME = "你的BUCKETNAME";
	public static final String URL = "你的返回前缀，不懂得去那你上传成功文件详情里面能看到 URL";

	// Prints progress while waiting for the transfer to finish.


	private static void showTransferProgress(Transfer transfer) {
		System.out.println(transfer.getDescription());
		do {
			try {
				Thread.sleep(2000);
			} catch (InterruptedException e) {
				return;
			}
			TransferProgress progress = transfer.getProgress();
			long so_far = progress.getBytesTransferred();
			long total = progress.getTotalBytesToTransfer();
			double pct = progress.getPercentTransferred();
			System.out.printf("[%d / %d]\n", so_far, total);
		} while (transfer.isDone() == false);
		System.out.println(transfer.getState());
	}

	// 上传文件, 根据文件大小自动选择简单上传或者分块上传。
	public static void uploadFile() {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-shanghai"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		// bucket名需包含appid
		String bucketName = BUCKETNAME;

		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		String key = "";
		File localFile = new File("");
		PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile);
		try {
			// 返回一个异步结果Upload, 可同步的调用waitForUploadResult等待upload结束, 成功返回UploadResult, 失败抛出异常.
			long startTime = System.currentTimeMillis();
			Upload upload = transferManager.upload(putObjectRequest);
			showTransferProgress(upload);
			UploadResult uploadResult = upload.waitForUploadResult();
			long endTime = System.currentTimeMillis();
			System.out.println("used time: " + (endTime - startTime) / 1000);
			System.out.println(uploadResult.getETag());

			System.out.println(uploadResult.getKey());


		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		cosclient.shutdown();
	}

	// 上传文件, 根据文件大小自动选择简单上传或者分块上传。
	public static String uploadFile(String fileName) {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-shanghai"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		// bucket名需包含appid
		String bucketName = BUCKETNAME;

		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);
//		String name=fileName.replace(".MP4","");
		String key = "taozugong/" + fileName;
//		String fileUrl="/tmp/"+;
		File localFile = new File(fileName);
		PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile);
		UploadResult uploadResult = null;
		try {
			// 返回一个异步结果Upload, 可同步的调用waitForUploadResult等待upload结束, 成功返回UploadResult, 失败抛出异常.
			long startTime = System.currentTimeMillis();
			Upload upload = transferManager.upload(putObjectRequest);
			showTransferProgress(upload);
			uploadResult = upload.waitForUploadResult();
			long endTime = System.currentTimeMillis();
			System.out.println("used time: " + (endTime - startTime) / 1000);
			System.out.println(uploadResult.getETag());

			System.out.println(uploadResult.getKey());

			String url = URL + uploadResult.getKey();

		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		cosclient.shutdown();
		String url = URL + uploadResult.getKey();
		System.out.println(url);
		return url;
	}

	// 上传文件（上传过程中暂停, 并继续上传)
	public static void pauseUploadFileAndResume() {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		// bucket名需包含appid
		String bucketName = "mybucket-1251668577";

		ExecutorService threadPool = Executors.newFixedThreadPool(4);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		String key = "/aaa/bbb.txt";
		File localFile = new File("src/test/resources/len30M.txt");
		PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile);
		try {
			// 返回一个异步结果Upload, 可同步的调用waitForUploadResult等待upload结束, 成功返回UploadResult, 失败抛出异常.
			Upload upload = transferManager.upload(putObjectRequest);
			try {
				Thread.sleep(10000);
			}catch (Exception e){
				e.printStackTrace();
			}

			PersistableUpload persistableUpload = upload.pause();
			upload = transferManager.resumeUpload(persistableUpload);
			showTransferProgress(upload);
			UploadResult uploadResult = upload.waitForUploadResult();
			System.out.println(uploadResult.getETag());
		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		cosclient.shutdown();
	}


	// 将文件下载到本地
	public static void downLoadFile() {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		// bucket名需包含appid
		String bucketName = "mybucket-1251668577";

		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		String key = "/aaa/bbb.txt";
		File downloadFile = new File("src/test/resources/download.txt");
		GetObjectRequest getObjectRequest = new GetObjectRequest(bucketName, key);
		try {
			// 返回一个异步结果copy, 可同步的调用waitForCompletion等待download结束, 成功返回void, 失败抛出异常.
			Download download = transferManager.download(getObjectRequest, downloadFile);
			download.waitForCompletion();
		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		cosclient.shutdown();
	}

	// 将文件下载到本地(中途暂停并继续开始)
	public static void pauseDownloadFileAndResume() {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		// bucket名需包含appid
		String bucketName = "mybucket-1251668577";

		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		String key = "/aaa/bbb.txt";
		File downloadFile = new File("src/test/resources/download.txt");
		GetObjectRequest getObjectRequest = new GetObjectRequest(bucketName, key);
		try {
			// 返回一个异步结果copy, 可同步的调用waitForCompletion等待download结束, 成功返回void, 失败抛出异常.
			Download download = transferManager.download(getObjectRequest, downloadFile);
			Thread.sleep(5000L);
			PersistableDownload persistableDownload = download.pause();
			download = transferManager.resumeDownload(persistableDownload);
			showTransferProgress(download);
			download.waitForCompletion();
		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}


		transferManager.shutdownNow();
		cosclient.shutdown();
	}


	// copy接口支持根据文件大小自动选择copy或者分块copy
	// 以下代码展示跨园区拷贝, 即将一个园区的文件拷贝到另一个园区
	public static void copyFileForDiffRegion() {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);


		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		// 要拷贝的bucket region, 支持跨园区拷贝
		Region srcBucketRegion = new Region("ap-shanghai");
		// 源bucket, bucket名需包含appid
		String srcBucketName = "srcBucket-1251668577";
		// 要拷贝的源文件
		String srcKey = "aaa/bbb.txt";
		// 目的bucket, bucket名需包含appid
		String destBucketName = "destBucket-1251668577";
		// 要拷贝的目的文件
		String destKey = "ccc/ddd.txt";

		COSClient srcCOSClient = new COSClient(cred, new ClientConfig(srcBucketRegion));
		CopyObjectRequest copyObjectRequest = new CopyObjectRequest(srcBucketRegion, srcBucketName,
				srcKey, destBucketName, destKey);
		try {
			Copy copy = transferManager.copy(copyObjectRequest, srcCOSClient, null);
			// 返回一个异步结果copy, 可同步的调用waitForCopyResult等待copy结束, 成功返回CopyResult, 失败抛出异常.
			CopyResult copyResult = copy.waitForCopyResult();
		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		srcCOSClient.shutdown();
		cosclient.shutdown();
	}

	// copy接口支持根据文件大小自动选择copy或者分块copy
	// 以下代码展示同园区拷贝, 即将同园区的文件拷贝到另一个园区
	public static void copyFileForSameRegion() {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);


		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		// 要拷贝的bucket region, 支持跨园区拷贝
		Region srcBucketRegion = new Region("ap-beijing-1");
		// 源bucket, bucket名需包含appid
		String srcBucketName = "srcBucket-1251668577";
		// 要拷贝的源文件
		String srcKey = "aaa/bbb.txt";
		// 目的bucket, bucket名需包含appid
		String destBucketName = "destBucket-1251668577";
		// 要拷贝的目的文件
		String destKey = "ccc/ddd.txt";

		CopyObjectRequest copyObjectRequest = new CopyObjectRequest(srcBucketRegion, srcBucketName,
				srcKey, destBucketName, destKey);
		try {
			Copy copy = transferManager.copy(copyObjectRequest);
			// 返回一个异步结果copy, 可同步的调用waitForCopyResult等待copy结束, 成功返回CopyResult, 失败抛出异常.
			CopyResult copyResult = copy.waitForCopyResult();
		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		cosclient.shutdown();
	}

//这里是源码里面的实现  直接使用就好 
	public String putObject(String bucketName, String key, InputStream input,
							ObjectMetadata metadata,String filename) throws CosClientException, CosServiceException {
		// bucket的命名规则为{name}-{appid} ，此处填写的存储桶名称必须为此格式
		bucketName = BUCKETNAME;
		key = "taozugong/"+System.currentTimeMillis()+".MP4";
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
// 2 设置bucket的区域, COS地域的简称请参照 https://cloud.tencent.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-shanghai"));
// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		PutObjectResult putObjectResult = cosclient.putObject(bucketName, key, input, metadata);
		String resulturl=URL+key;
		return  resulturl;
	}
	public String putObjectImage(String bucketName, String key, InputStream input,
							ObjectMetadata metadata,String filename) throws CosClientException, CosServiceException {
		// bucket的命名规则为{name}-{appid} ，此处填写的存储桶名称必须为此格式
		bucketName = BUCKETNAME;
		key = "taozugong/"+System.currentTimeMillis()+filename;
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
// 2 设置bucket的区域, COS地域的简称请参照 https://cloud.tencent.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-shanghai"));
// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
	
		PutObjectResult putObjectResult = cosclient.putObject(bucketName, key, input, metadata);
		String resulturl=URL+key;
		return  resulturl;
	}
	public static void main(String[] args) {

		//uploadFile("F://美人鱼.MP4");
	}
	public static String uploadFiles(InputStream input,
								   ObjectMetadata metadata,String filename) {
		// 1 初始化用户身份信息(secretId, secretKey)
		COSCredentials cred = new BasicCOSCredentials(SECRET_ID, SECRET_KEY);
		// 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
		ClientConfig clientConfig = new ClientConfig(new Region("ap-shanghai"));
		// 3 生成cos客户端
		COSClient cosclient = new COSClient(cred, clientConfig);
		// bucket名需包含appid
		String bucketName = BUCKETNAME;

		ExecutorService threadPool = Executors.newFixedThreadPool(32);
		// 传入一个threadpool, 若不传入线程池, 默认TransferManager中会生成一个单线程的线程池。
		TransferManager transferManager = new TransferManager(cosclient, threadPool);

		String key = "taozugong/"+System.currentTimeMillis()+".MP4";

		PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, input,metadata);
		String resulturl=URL+key;
		try {
			// 返回一个异步结果Upload, 可同步的调用waitForUploadResult等待upload结束, 成功返回UploadResult, 失败抛出异常.
			long startTime = System.currentTimeMillis();
			Upload upload = transferManager.upload(putObjectRequest);
			showTransferProgress(upload);
			UploadResult uploadResult = upload.waitForUploadResult();
			long endTime = System.currentTimeMillis();
			System.out.println("used time: " + (endTime - startTime) / 1000);
			System.out.println(uploadResult.getETag());

			System.out.println(uploadResult.getKey());


		} catch (CosServiceException e) {
			e.printStackTrace();
		} catch (CosClientException e) {
			e.printStackTrace();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}

		transferManager.shutdownNow();
		cosclient.shutdown();
		return  resulturl;
	}

}
这是cos提供得demo和自己修改后得方法，因为里面用到得是File 获取路径，看看源码其实里面也支持inputstream
具体得实现demo在文件里面有兴趣得可以去下载试试，我的博客资料文件
关于腾讯云COS文件上传

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