使用阿里云服务器（OOS）实现图片上传

package com.szy.project.utils; import java.io.*; import java.net.URL; import java.util.Date; import java.util.Random; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.aliyun.oss.OSSClient; import com.aliyun.oss.model.objectmetadata; import com.aliyun.oss.model.PutObjectResult; import org.springframework.util.stringUtils; import org.springframework.web.multipart.MultipartFile; /** * 阿里云 OSS文件类 参考文档 https://help.aliyun.com/product/31815.html?spm=5176.750001.2.8.SZvzsM * * @author sunzhenyang */ public class OssClienUtils { Log log = LogFactory.getLog(OssClienUtils.class); // endpoint以北京为例，其它region请按实际情况填写 private String endpoint = "http://oss-cn-beijing.aliyuncs.com"; // accessKey和accessKeySecret 为购买阿里云服务时官方提供 private String accessKeyId = "LTAIuB5R5******"; private String accessKeySecret = "56DOZQ2yRPE8n*****"; //空间 private String bucketName = "image"; //文件存储目录 (上传时在key前面加上目录 默认创建) private String date = "img/"; private OSSClient ossClient; public OssClienUtils() { ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret); } /** * 销毁 */ public void destory() { ossClient.shutdown(); } /** * 上传图片 直接获取本地资源路径 * * @param url * @throws Exception */ public void uploadImg2Oss(String url) throws Exception { File fileOnServer = new File(url); FileInputStream fin; try { fin = new FileInputStream(fileOnServer); String[] split = url.split("/"); this.uploadFile2OSS(fin, split[split.length - 1]); } catch (FileNotFoundException e) { throw new Exception("图片上传失败"); } } /** * 上传图片 * @param file * @return key 可根据key获取上到到服务器的志愿和删除等操作 * @throws Exception */ public String uploadImg2Oss(MultipartFile file,String typeDate) throws Exception { this.date=typeDate; // if (file.getSize() > 1024 * 1024) { // throw new Exception("上传图片大小不能超过1M！"); // } String originalFilename = file.getOriginalFilename(); String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase(); Random random = new Random(); String name = random.nextInt(10000) + System.currentTimeMillis() + substring; try { InputStream inputStream = file.getInputStream(); this.uploadFile2OSS(inputStream, name); return name; } catch (Exception e) { throw new Exception("图片上传失败"); } } /** * 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 { //创建上传Object的Metadata  ObjectMetadata objectMetadata = new ObjectMetadata(); objectMetadata.setContentLength(instream.available()); objectMetadata.setCacheControl("no-cache"); objectMetadata.setHeader("Pragma", "no-cache"); objectMetadata.setContentType(getcontentType(fileName.substring(fileName.lastIndexOf(".")))); objectMetadata.setContentDisposition("inline;filename=" + fileName); //上传文件 PutObjectResult putResult = ossClient.putObject(bucketName, date + 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; } /** * 获得图片路径 * * @param fileUrl * @return */ public String getImgUrl(String fileUrl) { if (!StringUtils.isEmpty(fileUrl)) { String[] split = fileUrl.split("/"); return this.getUrl(this.date + split[split.length - 1]); } return null; } /** * Description: 判断OSS服务文件上传时文件的contentType * * @param FilenameExtension 文件后缀 * @return String */ public 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/jpeg"; } 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("xml")) { return "text/xml"; } return "image/jpeg"; } /** * 获得url链接 * * @param key * @return */ public String getUrl(String key) { // 设置URL过期时间为10年 3600l* 1000*24*365*10 Date expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 10); // 生成URL URL url = ossClient.generatePresignedUrl(bucketName, key, expiration); if (url != null) { return url.toString(); } return null; } /** * 删除单个文件 */ public void delFile(String key){ ossClient.deleteObject(bucketName, key); } }