Java上传图片到阿里云OSS并回显URL

关键代码

OSSClientHandler.java

import java.io.InputStream;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.OSSObject;
import com.aliyun.oss.model.ObjectMetadata;@Component
public class OSSClientHandler {@Value("${aliyun.endpoint}")private String endpoint;@Value("${aliyun.accessKeyId}")private String accessKeyId;@Value("${aliyun.accessKeySecret}")private String accessKeySecret;@Value("${aliyun.bucket}")private String bucket;private OSS ossClient;private static final SimpleDateFormat DF = new SimpleDateFormat("yyyy/MM/dd");private static final Long expirationTime = 3600 * 1000 * 24 * 7L;// 图片过期时长（7天）public static void main(String[] args) throws Exception {OSSClientHandler aa = new OSSClientHandler();System.out.println("hao");}// 上传图片+获取URLpublic ImageInfo uploadImgAndGetUrl(MultipartFile file) throws Exception {getOSS();String orgFileName = file.getOriginalFilename();// 获取原始文件名String suffix = orgFileName.substring(orgFileName.lastIndexOf("."));String newName = UUID.randomUUID().toString().replace("-","") + suffix;String filePath = DF.format(new Date()) + "/" + newName;ObjectMetadata objectMetadata = new ObjectMetadata();objectMetadata.setContentType(getcontentType(suffix));ossClient.putObject(bucket, filePath, file.getInputStream(), objectMetadata);ImageInfo imageInfo = new ImageInfo(filePath, System.currentTimeMillis(),System.currentTimeMillis() + expirationTime);Date expiration = new Date(imageInfo.getExpireTime());URL url = ossClient.generatePresignedUrl(bucket, filePath, expiration);imageInfo.setUrl(url.toString());return imageInfo;}// 获取URLpublic String getUrl(String filePath) {getOSS();Date expiration = new Date(new Date().getTime() + expirationTime);URL url = ossClient.generatePresignedUrl(bucket, filePath, expiration);return url.toString();}private static String getcontentType(String FilenameExtension) {if (FilenameExtension.equalsIgnoreCase(".bmp")) {return "image/bmp";}if (FilenameExtension.equalsIgnoreCase(".gif")) {return "image/gif";}if (FilenameExtension.equalsIgnoreCase(".jpeg") || FilenameExtension.equalsIgnoreCase(".jpg")|| FilenameExtension.equalsIgnoreCase(".png")) {return "image/jpg";}return "image/jpg";}private OSS getOSS() {if (null == ossClient) {ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);}return ossClient;}public void upload(String fileUrl, InputStream inputStream) {try {getOSS();ossClient.putObject(bucket, fileUrl, inputStream);} catch (Exception e) {e.printStackTrace();}}public InputStream download(String fileUrl) {try {getOSS();OSSObject ossObject = ossClient.getObject(bucket, fileUrl);return ossObject.getObjectContent();} catch (Exception e) {e.printStackTrace();}return null;}
}

ImageInfo.java

import java.io.Serializable;import lombok.Data;@Data
public class ImageInfo implements Serializable {private static final long serialVersionUID = 6448908249255948262L;String filePath;Long createTime;Long expireTime;String url;public ImageInfo() {}public ImageInfo(String filePath, Long createTime, Long expireTime) {this.filePath = filePath;this.createTime = createTime;this.expireTime = expireTime;}
}