oss文件上传与下载
上传：如何使用流式上传和文件上传方式上传文件_对象存储 OSS-阿里云
package com.vazyme.kf.client.aliyun.oss.manager;
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.OSSObject;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.SimplifiedObjectMeta;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.stereotype.Component;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.OutputStream;
import javax.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
@Component
@Slf4j
@RefreshScope // 会监听变化实时变化值
public class OssManager {
@Value("${third.aliyun.oss.endpoint:''}")
private String endpoint;
// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。
@Value("${third.aliyun.oss.accessKeyId:''}")
private String accessKeyId;
@Value("${third.aliyun.oss.accessKeySecret:''}")
private String accessKeySecret;
// 填写Bucket名称，例如examplebucket。
@Value("${third.aliyun.oss.bucketName:''}")
private String bucketName;
@Value("${file.baseUrl:''}")
private String prePath;
/**
* 写入文件到oss
* @author pengbin
* @date 2022/4/12 14:48
* @param objectName 文件名
* @param sb 文件流
* @return
*/
public void writeOss(String objectName,StringBuffer sb){
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
// 创建PutObjectRequest对象。
// File file = new File("D:\\opt\\upload\\vazyme-qr\\01\\012022040511242313812.txt");
// String objectName = prePath + "/test" + file.getName();
try {
// 创建PutObjectRequest对象。
// 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);
// 填写字符串。
// 上传文件。
// PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, file);
// 上传文件。
// 创建PutObjectRequest对象。
PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, new ByteArrayInputStream(sb.toString().getBytes()));
ossClient.putObject(putObjectRequest);
} finally {
if (ossClient != null) {
ossClient.shutdown();
}
}
}
/**
* 写入文件到oss
* @author pengbin
* @date 2022/4/12 17:45
* @param
* @return
*/
public void writeFileOss(String objectName,String filePath){
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
// 创建PutObjectRequest对象。
// File file = new File("D:\\opt\\upload\\vazyme-qr\\01\\012022040511242313812.txt");
// String objectName = prePath + "/test" + file.getName();
try {
// 创建PutObjectRequest对象。
// 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);
// 填写字符串。
// 上传文件。
// PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, file);
// 上传文件。
// 创建PutObjectRequest对象。
PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, new File(filePath));
ossClient.putObject(putObjectRequest);
} catch (Exception e){
throw e;
}finally {
if (ossClient != null) {
ossClient.shutdown();
}
}
}
/**
* 获取文件信息
* @author pengbin
* @date 2022/4/12 15:00
* @param
* @return
*/
public String getSimplifiedObjectMeta(String filePath){
String fileSize = "";
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
try {
SimplifiedObjectMeta objectMeta = ossClient.getSimplifiedObjectMeta(bucketName, filePath);
fileSize = String.valueOf(objectMeta.getSize());
} catch (OSSException oe) {
log.error("Caught an OSSException, which means your request made it to OSS, "
+ "but was rejected with an error response for some reason.");
log.error("Error Message:" + oe.getErrorMessage());
log.error("Error Code:" + oe.getErrorCode());
log.error("Request ID:" + oe.getRequestId());
log.error("Host ID:" + oe.getHostId());
} catch (ClientException ce) {
log.error("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.");
log.error("Error Message:" + ce.getMessage());
}finally {
if (ossClient != null) {
ossClient.shutdown();
}
}
return fileSize;
}
/**
* 文件下载,获取文件信息
* @author pengbin
* @date 2022/4/12 15:06
* @param
* @return
*/
public void download(String fileName, String filePath, HttpServletResponse response){
/* InputStream in = new FileInputStream(new File(batchDO.getFileUrl()));//将该文件加入到输入流之中
byte[] body = null;
body = new byte[in.available()];// 返回下一次对此输入流调用的方法可以不受阻塞地从此输入流读取（或跳过）的估计剩余字节数
in.read(body);//读入到输入流里面*/
// response.reset();
response.setCharacterEncoding("utf-8");
response.setContentType("application/x-msdownload");
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
// 创建OSSClient实例。
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
try {
// ossObject包含文件所在的存储空间名称、文件名称、文件元信息以及一个输入流。
OSSObject ossObject = ossClient.getObject(bucketName, filePath);
BufferedInputStream input = new BufferedInputStream(ossObject.getObjectContent());
byte[] buffBytes = new byte[1024];
OutputStream outputStream = response.getOutputStream();
int read = 0;
while ((read = input.read(buffBytes)) != -1) {
outputStream.write(buffBytes, 0, read);
}
outputStream.flush();
// ossObject对象使用完毕后必须关闭，否则会造成连接泄漏，导致请求无连接可用，程序无法正常工作。
ossObject.close();
} 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 (Throwable 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();
}
}
}
}
下载：流式下载 - 对象存储 OSS - 阿里云
@GetMapping("/file/downLoad")
@ResponseBody
public void downLoad(@NotBlank(message = "批次id不能为空") String batchNo, HttpServletResponse response) {
batchBizManager.downloadFile(batchNo,response);
}