话不多说，直接上干货
官方文档：/product/31815.html?spm=a2c4g.11186623.6.540.539d28bca7ZyUR
1.首先引入pom依赖
<dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>3.8.0</version></dependency>
2.文件上传代码
Controller层：
public String upload(MultipartFile file){return fileUploadService.upload(file);}
Service层：
String upload(MultipartFile multipartFile);
ServiceImpl层：
@Overridepublic String upload(MultipartFile multipartFile){// 定义你的BucketNameString bucketName = "<yourBucketName>";String fileAllName = multipartFile.getOriginalFilename();String fileType = fileAllName.substring(fileAllName.lastIndexOf(".") + 1);String uuid = UUID.randomUUID().toString().replaceAll("-","");filePath = filePath + "/" +uuid +"."+fileType;String url=endpoint.replaceFirst("http://","http://"+bucketName +".")+"/"+filePath; String contentType = OssUtils.getContentType(fileAllName);//保存本地File file = XmlUtil.ossUpload(multipartFile);try {//上传ossOssUtils.ossUpload(filePath, file,contentType);}catch (Exception e){e.printStackTrace();System.out.println("上传失败");}//删除本地文件XmlUtil.deleteFile(file);return url;}
3.工具类
3.1 OssUtils：
public class OssUtils {// 创建存储空间，Endpoint以杭州为例，其它Region请按实际情况填写。private String endpoint = "https://oss-cn-";private String accessId = "<yourAccessKeyId>";private String accessKey = "<yourAccessKeySecret>";private String privateDomain = "<yourPrivateDomain >";private String privateBucket = "<yourBucketName>";public void ossUpload(String fileName, File file, String contentType) {try {OSS ossClient = new OSSClientBuilder().build(endpoint, accessId, accessKey);ObjectMetadata meta = new ObjectMetadata();meta.setContentType(contentType);UploadFileRequest uploadFileRequest = new UploadFileRequest(privateBucket, fileName);// 指定上传的本地文件。uploadFileRequest.setUploadFile(file.toString());// 指定上传并发线程数，默认为1。uploadFileRequest.setTaskNum(5);// 指定上传的分片大小，范围为100KB~5GB，默认为文件大小/10000。uploadFileRequest.setPartSize(1 * 1024 * 1024);// 开启断点续传，默认关闭。uploadFileRequest.setEnableCheckpoint(true);uploadFileRequest.setCheckpointFile("uploadFile.ucp");// 文件的元数据。uploadFileRequest.setObjectMetadata(meta);// 设置上传成功回调，参数为Callback类型。//uploadFileRequest.setCallback("<yourCallbackEvent>");// 断点续传上传。ossClient.uploadFile(uploadFileRequest);// 关闭OSSClient。ossClient.shutdown();} catch (FileNotFoundException e) {e.printStackTrace();} catch (Throwable throwable) {throwable.printStackTrace();}}/*** 通过文件名判断并获取OSS服务文件上传时文件的contentType*/public String getContentType(String fileName) {String fileExtension = fileName.substring(fileName.lastIndexOf("."));if (".bmp".equalsIgnoreCase(fileExtension)) {return "image/bmp";}if (".gif".equalsIgnoreCase(fileExtension)) {return "image/gif";}if (".jpeg".equalsIgnoreCase(fileExtension)) {return "image/jpeg";}if (".jpg".equalsIgnoreCase(fileExtension)) {return "image/jpg";}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";}if (".mp4".equalsIgnoreCase(fileExtension)) {return "video/mp4";}if (".mp3".equalsIgnoreCase(fileExtension)) {return "audio/mp3";}return "text/html";}}
3.2 XmlUtil：
public class XmlUtil {public static void deleteFile(File... files) {for (File file : files) {//logger.info("File:[{}]",file.getAbsolutePath());if (file.exists()) {file.delete();}}}public static File ossUpload(MultipartFile file) throws IOException {// 获取文件名String fileName = file.getOriginalFilename();// 获取文件后缀String prefix = fileName.substring(fileName.lastIndexOf("."));// 用uuid作为文件名，防止生成的临时文件重复File excelFile = File.createTempFile(UUID.randomUUID().toString(), prefix);// MultipartFile to Filefile.transferTo(excelFile);//程序结束时，删除临时文件return excelFile;}}
PS: 没有写概念类的东西，建议看之前先看看官网文档哦，然后就能看懂代码啦，小伙伴们加油哦
