For the basic use of OSS, please refer to the previous article. Click to enter . Here we mainly introduce how SpringBoot operates Alibaba Cloud OSS to achieve file upload.
1 ServiceImpl.java code, please refer to the official documentation to enter
This is the code in the official document, you can see that here is the implementation of uploading a piece of text: "Hello OSS"
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import java.io.ByteArrayInputStream;
public class Demo {
public static void main(String[] args) throws Exception {
// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。
String accessKeyId = "yourAccessKeyId";
String accessKeySecret = "yourAccessKeySecret";
// 填写Bucket名称，例如examplebucket。
String bucketName = "examplebucket";
// 填写Object完整路径，例如exampledir/exampleobject.txt。Object完整路径中不能包含Bucket名称。
String objectName = "exampledir/exampleobject.txt";
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
try {
String content = "Hello OSS";
ossClient.putObject(bucketName, objectName, 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 {
if (ossClient != null) {
ossClient.shutdown();
}
}
}
}
Add a unified authentication method in ServiceImpl
When we read the official documentation, we will find that each method of operating OSS will have the following identity authentication prefixes. If the following content is added to each method, the code will be redundant.
// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。
String accessKeyId = "yourAccessKeyId";
String accessKeySecret = "yourAccessKeySecret";
// 填写Bucket名称，例如examplebucket。
String bucketName = "examplebucket";
So we configure the following code segment. For the specific code, please refer to the previous article . This method can be loaded after the bean is initialized. Of course, it can also be implemented using a simple non-static code block.
//首先定义相关的类全局属性
//存放endpoint地址
private String endpoint;
private String accessKeyId;
private String accessKeySecret;
private String bucketName;
//初始化Bean之后需要进行的操作
@Override
public void afterPropertiesSet() throws Exception {
Endpoint以杭州为例，其它Region请按实际情况填写。
endpoint = ossEntity.getEndpoint();
阿里云主账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维，请登录RAM控制台创建RAM账号。
accessKeyId = ossEntity.getAccessKeyId();
accessKeySecret = ossEntity.getAccessKeySecret();
bucketName = ossEntity.getBucketName();
}
With the above definition, you can actually write the upload method as
public String upload(MultipartFile file){
// 填写Object完整路径，例如"avater/test.jpg"。Object完整路径中不能包含Bucket名称。这个路径会在 OSS 后台生成相应的目录和文件
String objectName = "avater/test.jpg";
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
try {
//String content = "Hello OSS";
try{
ossClient.putObject(bucketName, objectName, file.getInputStream());
}catch (IOException iOException){
System.out.println("Error Message:" + iOException.getMessage());
}
//ossClient.putObject(bucketName, objectName, 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 {
if (ossClient != null) {
ossClient.shutdown();
}
}
return "成功";
}
Write Controller layer test code
@Autowired
private AliOssService aliOssService;
@ApiOperation("Oss上传文件")
@PostMapping("/upload")
public Result upload(MultipartFile file){
String upload= aliOssService.upload(file);
return Result.ok().message(upload);
}
Release Engineering, Access Testing
OSS console
background test succeeded