oss文件上传demo (精简版通用)

项目代码链接

https://gitee.com/PanGuanQing/oss-file-upload-demo.git

依赖

<!-- 阿里云oss依赖 -->
<dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>3.8.1</version>
</dependency>

UploadController

import com.example.ossuploaddemo.utils.OSSUtil;
import org.springframework.beans.factory.annotation.Autowired;
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.security.SecureRandom;
import java.text.SimpleDateFormat;
import java.util.Date;@RestController
public class UploadController {@Autowiredprivate OSSUtil ossUtil;@RequestMapping("/upload")public String upload(MultipartFile file) throws IOException {String imgUrl = "";SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");// 最后上传生成的文件名String finalFileName = System.currentTimeMillis() + "" + new SecureRandom().nextInt(0x0400) + ".jpg";// oss中的文件夹名String objectName = sdf.format(new Date()) + "/" + finalFileName;// 上传ossossUtil.uploadFile2OSS(file.getInputStream(), objectName);//获取文件的URl地址imgUrl = ossUtil.getImgUrl(objectName);return imgUrl;}
}

OSSUtil

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.ObjectMetadata;
import com.aliyun.oss.model.PutObjectResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.Date;@Slf4j
@Component
public class OSSUtil {private static final String endpoint = "oss-cn-beijing.aliyuncs.com";private static final String accessKeyId = "xxxxxx";private static final String accessKeySecret = "xxxxxx";private static final String bucketName = "pan-guan-qing";private static final String FOLDER = "image/";public static OSS getOSSClient() {return new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);}/*** 获得图片路径** @param fileUrl* @return*/public String getImgUrl(String fileUrl) {System.out.println(fileUrl);if (!StringUtils.isEmpty(fileUrl)) {return this.getUrl(this.FOLDER + fileUrl);}return "";}/*** 上传到OSS服务器 如果同名文件会覆盖服务器上的** @param instream 文件流* @param fileName 文件名称 包括后缀名* @return 出错返回"" ,唯一MD5数字签名*/public String uploadFile2OSS(InputStream instream, String fileName) {String ret = "";try {OSS ossClient = getOSSClient();// 创建上传Object的MetadataObjectMetadata objectMetadata = new ObjectMetadata();objectMetadata.setContentLength(instream.available());objectMetadata.setCacheControl("no-cache");objectMetadata.setContentType(getContentType(fileName.substring(fileName.lastIndexOf("."))));objectMetadata.setHeader("Pragma", "no-cache");// 上传文件PutObjectResult putResult = ossClient.putObject(bucketName, FOLDER + fileName, instream, objectMetadata);ret = putResult.getETag();} catch (IOException e) {log.error(e.getMessage(), e);} finally {try {if (instream != null) {instream.close();}} catch (IOException e) {e.printStackTrace();}}return ret;}/*** 通过文件名判断并获取OSS服务文件上传时文件的contentType** @param filenameExtension 文件名* @return 文件的contentType*/public static final String getContentType(String filenameExtension) {if (filenameExtension.equalsIgnoreCase(".bmp")) {return "application/x-bmp";}if (filenameExtension.equalsIgnoreCase(".gif")) {return "image/gif";}if (filenameExtension.equalsIgnoreCase(".jpeg") ||filenameExtension.equalsIgnoreCase(".jpg") ||filenameExtension.equalsIgnoreCase(".png")) {return "image/jpg";}if (filenameExtension.equalsIgnoreCase(".html")) {return "text/html";}if (filenameExtension.equalsIgnoreCase(".txt")) {return "text/plain";}if (filenameExtension.equalsIgnoreCase(".vsd")) {return "application/vnd.visio";}if (filenameExtension.equalsIgnoreCase(".pptx") ||filenameExtension.equalsIgnoreCase(".ppt")) {return "application/vnd.ms-powerpoint";}if (filenameExtension.equalsIgnoreCase(".docx") ||filenameExtension.equalsIgnoreCase(".doc")) {return "application/msword";}if (filenameExtension.equalsIgnoreCase(".xla") ||filenameExtension.equalsIgnoreCase(".xlc") ||filenameExtension.equalsIgnoreCase(".xlm") ||filenameExtension.equalsIgnoreCase(".xls") ||filenameExtension.equalsIgnoreCase(".xlt") ||filenameExtension.equalsIgnoreCase(".xlw")) {return "application/vnd.ms-excel";}if (filenameExtension.equalsIgnoreCase(".xlsx")) {return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";}if (filenameExtension.equalsIgnoreCase(".xml")) {return "text/xml";}if (filenameExtension.equalsIgnoreCase(".pdf")) {return "application/pdf";}if (filenameExtension.equalsIgnoreCase(".zip")) {return "application/zip";}if (filenameExtension.equalsIgnoreCase(".tar")) {return "application/x-tar";}if (filenameExtension.equalsIgnoreCase(".avi")) {return "video/avi";}if (filenameExtension.equalsIgnoreCase(".mp4")) {return "video/mpeg4";}if (filenameExtension.equalsIgnoreCase(".mp3")) {return "audio/mp3";}if (filenameExtension.equalsIgnoreCase(".mp2")) {return "audio/mp2";}// 默认下载
//        return "application/octet-stream";return "image/jpg";}/*** 获得url链接** @param key* @return*/public String getUrl(String key) {OSS ossClient = getOSSClient();// 图片有效期10年Date expiration = new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 10);// 生成URLURL url = ossClient.generatePresignedUrl(bucketName, key, expiration);System.out.println("url: "+url);if (url != null) {String host = "https://" + url.getHost() + url.getPath();//System.out.println("host: "+host);return url.toString();}return "";}
}

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