阿里云oss简单的上传下载删除（java）

阿里云oss上传和下载。

配置maven

 <!-- https://mvnrepository.com/artifact/com.aliyun.oss/aliyun-sdk-oss -->
		<dependency>
            <groupId>com.aliyun.oss</groupId>
            <artifactId>aliyun-sdk-oss</artifactId>
            <version>${aliyun-sdk-oss.version}</version>
        </dependency>

<aliyun-sdk-oss.version>3.11.1</aliyun-sdk-oss.version>

(1) AliyunOSSUtil.java

package com.game.common.tool.oss;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ResourceBundle;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.GetObjectRequest;
import com.aliyun.oss.model.OSSObject;

/**
 * 阿里云oss简单的上传下载和删除
 * 参考文档:https://help.aliyun.com/document_detail/84781.html?spm=a2c4g.11174283.6.
 * 947.23d47da2vBI9co
 * 
 * @author leng
 *
 */
public class AliyunOSSUtil {

	private static String endpoint;
	private static String accessKeyId;
	private static String accessKeySecret;
	private static String bucketName;

	static {
		ResourceBundle rb = ResourceBundle.getBundle("aliyunoss");
		endpoint = rb.getString("aliyun.oss.endpoint");
		accessKeyId = rb.getString("aliyun.oss.accessKeyId");
		accessKeySecret = rb.getString("aliyun.oss.accessKeySecret");
		bucketName = rb.getString("aliyun.oss.bucketName");
	}

	/**
	 * 上传字符串
	 * 
	 * @param key
	 * @param content
	 */
	public static void upload(String key, String content) {
		OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
		try {
			client.putObject(bucketName, key, new ByteArrayInputStream(content.getBytes()));
		} catch (OSSException oe) {
			System.out.println("Caught an OSSException, which means your request made it to OSS, "
					+ "but was rejected with an error response for some reason.");
			System.out.println("Error Message: " + oe.getErrorMessage());
			System.out.println("Error Code:       " + oe.getErrorCode());
			System.out.println("Request ID:      " + oe.getRequestId());
			System.out.println("Host ID:           " + oe.getHostId());
		} catch (ClientException ce) {
			System.out.println("Caught an ClientException, which means the client encountered "
					+ "a serious internal problem while trying to communicate with OSS, "
					+ "such as not being able to access the network.");
			System.out.println("Error Message: " + ce.getMessage());
		} finally {
			client.shutdown();
		}
	}

	/**
	 * 上传文件
	 * 
	 * @param key
	 * @param content
	 */
	public static void upload(String key, File file) {
		OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
		try {
			client.putObject(bucketName, key, file);
		} catch (OSSException oe) {
			System.out.println("Caught an OSSException, which means your request made it to OSS, "
					+ "but was rejected with an error response for some reason.");
			System.out.println("Error Message: " + oe.getErrorMessage());
			System.out.println("Error Code:       " + oe.getErrorCode());
			System.out.println("Request ID:      " + oe.getRequestId());
			System.out.println("Host ID:           " + oe.getHostId());
		} catch (ClientException ce) {
			System.out.println("Caught an ClientException, which means the client encountered "
					+ "a serious internal problem while trying to communicate with OSS, "
					+ "such as not being able to access the network.");
			System.out.println("Error Message: " + ce.getMessage());
		} finally {
			client.shutdown();
		}
	}

	/**
	 * 显示文本
	 * 
	 * @param key
	 * @throws IOException
	 */
	public static void displayTextInput(String key) throws IOException {
		OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
		try {
			OSSObject object = client.getObject(new GetObjectRequest(bucketName, key));
			// System.out.println("Content-Type: " +
			// object.getObjectMetadata().getContentType());
			BufferedReader reader = new BufferedReader(new InputStreamReader(object.getObjectContent()));
			while (true) {
				String line = reader.readLine();
				if (line == null)
					break;

				System.out.println("\t" + line);
			}
			System.out.println();
			reader.close();
		} finally {
			client.shutdown();
		}
	}

	/**
	 * 判断是否存在
	 * 
	 * @param key
	 * @return
	 */
	public static boolean exist(String key) {
		OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
		try {
			boolean found = client.doesObjectExist(bucketName, key);
			return found;
		} finally {
			client.shutdown();
		}
	}

	/**
	 * 删除
	 * 
	 * @param key
	 * @return
	 */
	public static void delete(String key) {
		OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
		try {
			client.deleteObject(bucketName, key);
		} finally {
			client.shutdown();
		}
	}

	public static void main(String[] args) {
		upload("3.txt", "aaaa");
		System.out.println("----");
	}

}

(2) aliyunoss.properties

aliyun.oss.endpoint=http://oss-cn-beijing.aliyuncs.com
aliyun.oss.accessKeyId=xxx
aliyun.oss.accessKeySecret=xxxx
aliyun.oss.bucketName=xxxx

執行結果：