前置条件 AccessKey
引入依赖
都是官网上的：https://help.aliyun.com/zh/oss/developer-reference/java-installation?spm=a2c4g.11186623.0.i16
<!--若是创建项目的时候这个依赖勾选了就不用了-->
<!--不加启动会报错No active profile set, falling back to 1 default profile: "default"-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!--引入OSS-->
<dependency>
<groupId>com.aliyun.oss</groupId>
<artifactId>aliyun-sdk-oss</artifactId>
<version>3.15.1</version>
</dependency>
<!--如果使用的是Java 9及以上的版本，则需要添加JAXB相关依赖。添加JAXB相关依赖示例代码如下：-->
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
<!-- no more than 2.3.3-->
<dependency>
<groupId>org.glassfish.jaxb</groupId>
<artifactId>jaxb-runtime</artifactId>
<version>2.3.3</version>
</dependency>
创建 Bucket
官网手动创建
代码创建–下面的 AliOssUtils 有这块内容
public static String buckName(String bucketName) throws Exception {
// 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
//EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
//这里不使用上述方法 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
// 填写Bucket名称，例如 upload-bucket-test-cao。Bucket名称在OSS范围内必须全局唯一。
//String bucketName = "upload-bucket-test-cao";
try {
// 创建存储空间。
ossClient.createBucket(bucketName);
//删除存储空间。
//ossClient.deleteBucket(bucketName);
} catch (OSSException oe) {
System.out.println("Host ID:" + oe.getHostId());
} catch (ClientException ce) {
System.out.println("Error Message:" + ce.getMessage());
} finally {
if (ossClient != null) {
ossClient.shutdown();
}
}
return bucketName+"成功";
}
封装工具类 AliOssUtils
package com.dudu.upload;
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.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import java.io.InputStream;
/**
* @Author dudu
* @Description AliyunUtils
* @Date 2024-05-07 12:30
* @Version 1.0
*/
public class AliOssUtils {
// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。
private static final String ENDPOINT = "https://oss-cn-hangzhou.aliyuncs.com";
private static final String ACCESS_KEY_ID = "xxxxxxxxxxxxxx";
private static final String ACCESS_KEY_SECRET = "xxxxxxxxxxxxxxxxxxxx";
private static final String BUCKETNAME = "5-2-upload-bucket";
public static String upLoadFile(String objectName, InputStream in) throws Exception {
String url = "";
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
try {
// 创建PutObjectRequest对象。
PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKETNAME, objectName, in);
// 如果需要上传时设置存储类型和访问权限，请参考以下示例代码。
// ObjectMetadata metadata = new ObjectMetadata();
// metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());
// metadata.setObjectAcl(CannedAccessControlList.Private);
// putObjectRequest.setMetadata(metadata);
// 上传字符串。
PutObjectResult result = ossClient.putObject(putObjectRequest);
url="https://"+BUCKETNAME+"."+ENDPOINT.substring(ENDPOINT.lastIndexOf("/")+1)+"/"+objectName;
} 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 url;
}
/**
* @param bucketName
* @return
* @throws Exception
*/
public static String buckName(String bucketName) throws Exception {
// 从环境变量中获取访问凭证。运行本代码示例之前，请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
//EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
//这里不使用上述方法 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
// 填写Bucket名称，例如 upload-bucket-test-cao。Bucket名称在OSS范围内必须全局唯一。
//String bucketName = "upload-bucket-test-cao";
try {
// 创建存储空间。
ossClient.createBucket(bucketName);
//删除存储空间。
//ossClient.deleteBucket(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 {
if (ossClient != null) {
ossClient.shutdown();
}
}
return bucketName+"成功";
}
}
调用
@PostMapping("upload")
public String upload(MultipartFile file) throws Exception {
//创建bucketName
//String buckName = AliOssUtils.buckName("5-2-upload-bucket");
//System.out.println("buckName = " + buckName);
//获取文件名
String originalFilename = file.getOriginalFilename();
//设置唯一的文件名
assert originalFilename != null;
String newFileName = System.currentTimeMillis() + originalFilename.substring(originalFilename.lastIndexOf("."));
return AliOssUtils.upLoadFile("upload/"+newFileName, file.getInputStream());
}
设置文件上传大小限制
spring:
servlet:
multipart:
# 设置上传文件的最大值
max-file-size: 10MB
其他操作查看官网
整体视图
