上传图片到阿里云OSS和获取上传图片的外网url的步骤
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<form action= "/bcis/api/headImgUpload.json" method= "post" enctype= "multipart/form-data" > <input type= "file" name= "file" > <input type= "submit" value= "提交" > </form> |
2.controller:
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@RequestMapping (value = "/headImgUpload.json" , method = RequestMethod.POST) @ResponseBody public Map<String, Object> headImgUpload(HttpServletRequest request,MultipartFile file) { Map<String, Object> value = new HashMap<String, Object>(); value.put( "success" , true ); value.put( "errorCode" , 0 ); value.put( "errorMsg" , "" ); try { String head = userService.updateHead(file, 4 ); //此处是调用上传服务接口,4是需要更新的userId 测试数据。 value.put( "data" , head); } catch (IOException e) { e.printStackTrace(); value.put( "success" , false ); value.put( "errorCode" , 200 ); value.put( "errorMsg" , "图片上传失败" ); } return value; } |
3.service 此处要把
@Autowired
private OSSClientUtil ossClient;注进来
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@Override public String updateHead(MultipartFile file, long userId) throws IOException{ if (file == null || file.getSize() <= 0 ) { throw new ImgException( "头像不能为空" ); } String name = ossClient.uploadImg2Oss(file); String imgUrl = ossClient.getImgUrl(name); userDao.updateHead(userId, imgUrl); //只是本地上传使用的 return imgUrl; } |
4.上传的阿里云的帮助类OSSClientUtil
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import java.io.*; import java.net.URL; import java.util.Date; import java.util.Random; import com.fndsoft.bcis.exception.ImgException; 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 * * @author YuanDuDu */ public class OSSClientUtil { Log log = LogFactory.getLog(OSSClientUtil. class ); // endpoint以杭州为例,其它region请按实际情况填写 private String endpoint = "您的endpoint" ; // accessKey private String accessKeyId = "您的accessKeyId" ; private String accessKeySecret = "您的accessKeySecret" ; //空间 private String bucketName = "bcis" ; //文件存储目录 private String filedir = "data/" ; private OSSClient ossClient; public OSSClientUtil() { ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret); } /** * 初始化 */ public void init() { ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret); } /** * 销毁 */ public void destory() { ossClient.shutdown(); } /** * 上传图片 * * @param url */ public void uploadImg2Oss(String url) { 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 ImgException( "图片上传失败" ); } } public String uploadImg2Oss(MultipartFile file) { if (file.getSize() > 1024 * 1024 ) { throw new ImgException( "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 ImgException( "图片上传失败" ); } } /** * 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 .filedir + split[split.length - 1 ]); } return null ; } /** * 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, filedir + 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; } /** * 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" ; } 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 ; } } |
6.需要引入的jar包:gradle配置为:
compile ‘com.aliyun.oss:aliyun-sdk-oss:2.2.3‘
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