1. 基本使用
<form action="/upload" method="post" enctype="multipart/form-data">
头像：<input type="file" name="image">
<input type="submit" value="提交">
</form>
package com.heo.utils;
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.FileInputStream;
import java.io.InputStream;
public class AliOssUtil {
// 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-beijing.aliyuncs.com";
// 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();
private static final String ACCESS_KEY_ID = "xxxxx"; // 替换成自己的ACCESS_KEY_ID
private static final String ACCESS_KEY_SECRET = "xxxxx"; // 替换成自己的ACCESS_KEY_SECRET
// 填写Bucket名称，例如examplebucket。
private static final String BUCKET_NAME = "heoleadnews";
public static String uploadFile(String objectName, InputStream in) throws Exception {
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(ENDPOINT, ACCESS_KEY_ID, ACCESS_KEY_SECRET);
String url = "";
try {
// 填写字符串。
String content = "Hello OSS，你好世界";
// 创建PutObjectRequest对象。
PutObjectRequest putObjectRequest = new PutObjectRequest(BUCKET_NAME, 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);
// 例： https://heoleadnews.oss-cn-beijing.aliyuncs.com/001.png
url = "https://" + BUCKET_NAME + "." + 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;
}
}
package com.heo.controller;
import com.heo.pojo.Result;
import com.heo.utils.AliOssUtil;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import java.util.UUID;
@RestController
public class FileUploadController {
@PostMapping("/upload")
public Result<String> upload(MultipartFile file) throws Exception {
String originalFilename = file.getOriginalFilename();
String filename = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));
// file.transferTo(new File("C:\\Users\\86139\\Desktop\\Java\\springboot3+vue3（黑马）\\FileUpload\\"+filename));
String url = AliOssUtil.uploadFile(filename, file.getInputStream());
return Result.success(url);
}
}
2. 封装优化
实例：苍穹外卖
oss 相关配置：
application.yml
sky:
jwt:
# 设置jwt签名加密时使用的秘钥
admin-secret-key: itcast
# 设置jwt过期时间
admin-ttl: 7200000
# 设置前端传递过来的令牌名称
admin-token-name: token
alioss:
endpoint: ${
sky.alioss.endpoint}
access-key-id: ${
sky.alioss.access-key-id}
access-key-secret: ${
sky.alioss.access-key-secret}
bucket-name: ${
sky.alioss.bucket-name}
application-dev.yml(这里不用横杠分隔，用驼峰命名也是可以的，SpringBoot会自动转换)
alioss:
endpoint: oss-cn-beijing.aliyuncs.com
access-key-id: xxxxx
access-key-secret: xxxxx
bucket-name: heoleadnews
配置属性类AliOssProperties ：
package com.sky.properties;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
@Component
@ConfigurationProperties(prefix = "sky.alioss")
@Data
public class AliOssProperties {
private String endpoint;
private String accessKeyId;
private String accessKeySecret;
private String bucketName;
}
AliOssUtil :
package com.sky.utils;
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
import java.io.ByteArrayInputStream;
@Data
@AllArgsConstructor
@Slf4j
public class AliOssUtil {
private String endpoint;
private String accessKeyId;
private String accessKeySecret;
private String bucketName;
/**
* 文件上传
*
* @param bytes
* @param objectName
* @return
*/
public String upload(byte[] bytes, String objectName) {
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
try {
// 创建PutObject请求。
ossClient.putObject(bucketName, objectName, new ByteArrayInputStream(bytes));
} 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();
}
}
//文件访问路径规则 https://BucketName.Endpoint/ObjectName
StringBuilder stringBuilder = new StringBuilder("https://");
stringBuilder
.append(bucketName)
.append(".")
.append(endpoint)
.append("/")
.append(objectName);
log.info("文件上传到:{}", stringBuilder.toString());
return stringBuilder.toString();
}
}
OssConfiguration :
package com.sky.config;
import com.sky.properties.AliOssProperties;
import com.sky.utils.AliOssUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* 配置类，用于创建AliOSSUtil对象 将AliOssProperties属性值传递给AliOssUtil
*/
@Configuration
@Slf4j
public class OssConfiguration {
@Bean // 项目启动即调用该类创建AliOssUtil对象，并交给Spring容器
@ConditionalOnMissingBean // 当没有AliOssUtil时才创建，确保只创建一个AliOssUtil
public AliOssUtil aliOssUtil(AliOssProperties aliOssProperties) {
log.info("开始创建阿里云文件上传工具类对象：{}", aliOssProperties);
return new AliOssUtil(aliOssProperties.getEndpoint(),
aliOssProperties.getAccessKeyId(),
aliOssProperties.getAccessKeySecret(),
aliOssProperties.getBucketName());
}
}
文件上传Controller
package com.sky.controller.admin;
import com.sky.constant.MessageConstant;
import com.sky.result.Result;
import com.sky.utils.AliOssUtil;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import java.io.IOException;
import java.util.UUID;
@RestController
@RequestMapping("/admin/common")
@Api(tags = "通用接口")
@Slf4j
public class CommonController {
@Autowired
AliOssUtil aliOssUtil;
@PostMapping("/upload")
@ApiOperation("文件上传")
public Result<String> upload(MultipartFile file) {
log.info("文件上传：{}", file);
try {
String originalFilename = file.getOriginalFilename();
String extension = originalFilename.substring(originalFilename.lastIndexOf("."));
String objectName = UUID.randomUUID().toString() + extension;
String filePath = aliOssUtil.upload(file.getBytes(), objectName);
return Result.success(filePath);
} catch (IOException e) {
log.info("文件上传失败：{}",e);
}
return Result.error(MessageConstant.UPLOAD_FAILED);
}
}