阿里云对象存储OSS上传照片(附源码)

Posted 2022-10-11 谷哥的小弟

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版权声明

本文原创作者：谷哥的小弟
作者博客地址：http://blog.csdn.net/lfdfhl

参考教程

OSS官方文档：https://help.aliyun.com/document_detail/32007.html
RAM访问控制：https://blog.csdn.net/lfdfhl/article/details/127156419

概述

在本教程中详细介绍阿里云对象存储OSS上传照片的详细步骤及其注意事项。

创建Maven项目

请在IDEA中创建Maven项目；图示如下：

添加依赖

请在项目中添加依赖；图示如下：

<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-sdk-oss</artifactId>
    <version>3.15.0</version>
</dependency>

创建存储空间

存储空间是OSS的全局命名空间，相当于数据的容器，可以存储若干文件。

所以，可以使用原有的Bucket；也可以通过代码新建Bucket；代码如下：

package com.cn;

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
/**
 * 本文作者：谷哥的小弟
 * 博客地址：http://blog.csdn.net/lfdfhl
 */
public class Demo1 

    public static void main(String[] args) throws Exception 
        // 请按实际情况填写endpoint
        String endpoint = "https://oss-cn-chengdu.aliyuncs.com";
        // 建议创建并使用RAM用户并填写其accessKeyId和accessKeySecret
        String accessKeyId = Config.AccessKeyID;
        String accessKeySecret = Config.AccessKeySecret;
        // 填写Bucket名称
        String bucketName = "lfdfhl01";
        // 创建OSSClient实例
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        try 
            // 创建存储空间
            ossClient.createBucket(bucketName);
         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 
            // 关闭OSSClient实例
            if (ossClient != null) 
                ossClient.shutdown();

图示如下：

程序运行完毕；图示如下：

在阿里云OSS管理控制台查看新增的Bucket；图示如下：

上传照片

在此，实现向Bucket上传照片的功能；代码如下：

package com.cn;

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.PutObjectResult;
import java.io.File;
import java.io.FileInputStream;

/**
 * 本文作者：谷哥的小弟
 * 博客地址：http://blog.csdn.net/lfdfhl
 */
public class Demo2 

    public static void main(String[] args) throws Exception 
        // 请按实际情况填写endpoint
        String endpoint = "https://oss-cn-chengdu.aliyuncs.com";
        // 建议创建并使用RAM用户并填写其accessKeyId和accessKeySecret
        String accessKeyId = Config.AccessKeyID;
        String accessKeySecret = Config.AccessKeySecret;
        // 填写Bucket名称
        String bucketName = "lfdfhl01";
        // 待上传文件
        File file = new File("D:\\\\测试资源\\\\beauty.jpg");
        // 获取文件输入流
        FileInputStream fileInputStream = new FileInputStream(file);
        // 填写Object完整路径(即上传后保存的路径及文件名)
        String objectName = file.getName();
        // 创建OSSClient实例
        OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
        // 判断上传是否成功
        boolean isSuc = true;
        // 图片上传后服务器返回的ETag
        String eTag = null;
        try 
            // 上传文件
            PutObjectResult putObjectResult = ossClient.putObject(bucketName, objectName, fileInputStream);
            // 获取ETag
            eTag = putObjectResult.getETag();
            System.out.println("eTag="+eTag);
         catch (OSSException oe) 
            // 上传失败
            isSuc = false;
            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) 
            // 上传失败
            isSuc = false;
            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 
            // 关闭OSSClient实例
            if (ossClient != null) 
                ossClient.shutdown();
            
            // 上传成功
            if(eTag!=null&&isSuc)
                // 上传成功后拼接文件在服务器上的地址
                String url = "https://" + bucketName + "."+"oss-cn-chengdu.aliyuncs.com" +"/"+objectName;
                System.out.println("文件上传成功，url="+url);