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cn.gjing.AliOss Maven / Gradle / Ivy
package cn.gjing;
import cn.gjing.annotation.NotNull2;
import cn.gjing.enums.HttpStatus;
import com.aliyun.oss.OSSClient;
import com.aliyun.oss.model.DeleteObjectsRequest;
import com.aliyun.oss.model.GetObjectRequest;
import com.aliyun.oss.model.ObjectMetadata;
import org.apache.commons.io.FilenameUtils;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.InputStream;
import java.net.URL;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;
/**
* @author Gjing
**/
public class AliOss {
/**
* 实例
*/
private static OSSClient instance = null;
/**
* Oss 实例化
*
* @return 实例
*/
private static OSSClient getOssClient(OssModel ossModel) {
if (instance == null) {
synchronized (AliOss.class) {
if (instance == null) {
instance = new OSSClient(ossModel.getEndPoint(), ossModel.getAccessKeyId(), ossModel.getAccessKeySecret());
}
}
}
return instance;
}
/**
* 当Bucket 不存在时候创建Bucket
*/
private static void createBucket(OssModel ossModel) {
try {
if (!AliOss.getOssClient(ossModel).doesBucketExist(ossModel.getBucketName())) {
AliOss.getOssClient(ossModel).createBucket(ossModel.getBucketName());
}
} catch (Exception e) {
throw new OssException("创建Bucket失败,请核对Bucket名称(规则：只能包含小写字母、数字和短横线，必须以小写字母和数字开头和结尾，长度在3-63之间)");
}
}
/**
* 通过文件名判断并获取OSS服务文件上传时文件的contentType
*
* @param fileName 文件名
* @return 文件的contentType
*/
private static String getContentType(String fileName) {
String fileExtension = fileName.substring(fileName.lastIndexOf(".") + 1);
if ("bmp".equalsIgnoreCase(fileExtension)) {
return "image/bmp";
}
if ("gif".equalsIgnoreCase(fileExtension)) {
return "image/gif";
}
if ("jpeg".equalsIgnoreCase(fileExtension) || "jpg".equalsIgnoreCase(fileExtension)) {
return "image/jpeg";
}
if ("png".equalsIgnoreCase(fileExtension)) {
return "image/png";
}
if ("html".equalsIgnoreCase(fileExtension)) {
return "text/html";
}
if ("txt".equalsIgnoreCase(fileExtension)) {
return "text/plain";
}
if ("vsd".equalsIgnoreCase(fileExtension)) {
return "application/vnd.visio";
}
if ("ppt".equalsIgnoreCase(fileExtension) || "pptx".equalsIgnoreCase(fileExtension)) {
return "application/vnd.ms-powerpoint";
}
if ("doc".equalsIgnoreCase(fileExtension) || "docx".equalsIgnoreCase(fileExtension)) {
return "application/msword";
}
if ("xml".equalsIgnoreCase(fileExtension)) {
return "text/xml";
}
return "text/html";
}
/**
* 上传OSS服务器 如果同名文件会覆盖服务器上的
*
* @param file 文件
* @return 文件地址
*/
private static String uploadFile(MultipartFile file, OssModel ossModel) {
String fileName = String.format("%s.%s", UUID.randomUUID().toString(), FilenameUtils.getExtension(file.getOriginalFilename()));
try (InputStream inputStream = file.getInputStream()) {
ObjectMetadata objectMetadata = new ObjectMetadata();
objectMetadata.setContentLength(inputStream.available());
objectMetadata.setCacheControl("no-cache");
objectMetadata.setHeader("Pragma", "no-cache");
objectMetadata.setContentType(FilenameUtils.getExtension("." + file.getOriginalFilename()));
objectMetadata.setContentDisposition("inline;filename=" + fileName);
if (ParamUtil.paramIsNotEmpty(ossModel.getFileDir())) {
AliOss.getOssClient(ossModel).putObject(ossModel.getBucketName(), ossModel.getFileDir() + "/" + fileName, inputStream, objectMetadata);
return ossModel.getFileDir() + "/" + fileName;
} else {
AliOss.getOssClient(ossModel).putObject(ossModel.getBucketName(), fileName, inputStream, objectMetadata);
return fileName;
}
} catch (Exception oe) {
throw new OssException(oe.getMessage());
}
}
/**
* 获取文件路径
*
* @param fileUrl 文件地址
* @return 路径
*/
private static String getFileUrl(String fileUrl, OssModel ossModel) {
if (ParamUtil.paramIsEmpty(fileUrl)) {
throw new OssException("The parameter fileUrl cannot be null!");
}
String[] split = ParamUtil.split(fileUrl, "/");
if (ParamUtil.paramIsEmpty(split)) {
throw new OssException(HttpStatus.INVALID_PARAMETER.getMsg());
}
URL url;
if (ParamUtil.paramIsNotEmpty(ossModel.getFileDir())) {
url = AliOss.getOssClient(ossModel).generatePresignedUrl(ossModel.getBucketName(), ossModel.getFileDir() + "/" + split[split.length - 1], TimeUtil.addDay(new Date(), 365 * 10));
} else {
url = AliOss.getOssClient(ossModel).generatePresignedUrl(ossModel.getBucketName(), split[split.length - 1], TimeUtil.addDay(new Date(), 365 * 10));
}
if (url == null) {
throw new OssException("get oss file url error");
}
return url.toString();
}
/**
* 获取路径地址
*
* @param fileOssUrl oss对应文件地址
* @return 地址
*/
private static String getPathUrl(String fileOssUrl, OssModel ossModel) {
return fileOssUrl.substring(fileOssUrl.indexOf(ossModel.getEndPoint()) + ossModel.getEndPoint().length() + 1);
}
/**
* 文件删除
*
* @param fileOssUrls 文件地址集合
* @return 返回true为删除成功
*/
@NotNull2
public static boolean delete(List fileOssUrls, OssModel ossModel) {
List urlList = fileOssUrls.stream().map(e -> AliOss.getPathUrl(e, ossModel)).collect(Collectors.toList());
try {
AliOss.getOssClient(ossModel).deleteObjects(new DeleteObjectsRequest(ossModel.getBucketName()).withKeys(urlList));
return true;
} catch (RuntimeException e) {
throw new OssException(e.getMessage());
}
}
/**
* 文件简单上传（最大文件不能超过5G）
*
* @param file 文件
* @param ossModel oss模型
* @return string
*/
@NotNull2
public static String upload(MultipartFile file, OssModel ossModel) {
if (file.getSize() > 5 * 1024 * 1024 * 1024) {
throw new OssException("Upload failed. file size cannot more than 5 gb");
}
AliOss.createBucket(ossModel);
String fileName = AliOss.uploadFile(file, ossModel);
String fileOssUrl = AliOss.getFileUrl(fileName, ossModel);
//去掉URL中的?后的时间戳
int firstChar = fileOssUrl.indexOf("?");
if (firstChar > 0) {
fileOssUrl = fileOssUrl.substring(0, firstChar);
}
return fileOssUrl;
}
/**
* @param ossModel oss模型
* @param fileOssUrl 要下载oss服务器上的文件地址
* @param localFile 保存本地文件,不存在会创建一个本地文件;(完整路径)
*/
@NotNull2
public static boolean downloadFile(OssModel ossModel, String fileOssUrl, String localFile) {
try {
OSSClient ossClient = getOssClient(ossModel);
ossClient.getObject(new GetObjectRequest(ossModel.getBucketName(), getPathUrl(fileOssUrl,ossModel)), new File(localFile));
return true;
} catch (RuntimeException e) {
throw new OssException(e.getMessage());
}
}
}
