上传图片到阿里云并生成url的工具类

桃扇骨 2022-06-12 13:26 212阅读 0赞

import java.io.IOException;
    import java.io.InputStream;
    import java.net.URL;
    import java.util.Date;
    import com.aliyun.oss.OSSClient;
    import com.aliyun.oss.model.ObjectMetadata;
    
    public class PictureUploadUtils {
    	private static String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
    	private static String accessKeyId = "<这里是公司的accessKeyId>";
    	private static String accessKeySecret = "<这里是公司的accessKeySecret>";
    	private static String bucketName = "<这里是公司的bucketName>";
    	private static OSSClient ossClient;
    
    	/** 上传文件到阿里云,并生成url
    	 * @param filedir (key)文件名(不包括后缀)
    	 * @param in 	文件字节流
    	 * @param suffix 文件后缀名
    	 * @return String 生成的文件url
    	 */
    	public static String UploadToAliyun(String filedir, InputStream in,String suffix) {
    		System.out.println("------------>文件名称为:  " + filedir + "." + suffix);
    		ossClient  = new OSSClient(endpoint, accessKeyId, accessKeySecret);
    		URL url = null;
    		try {
    			// 创建上传Object的Metadata
    			ObjectMetadata objectMetadata = new ObjectMetadata();
    			objectMetadata.setContentLength(in.available());
    			objectMetadata.setCacheControl("no-cache");//设置Cache-Control请求头，表示用户指定的HTTP请求/回复链的缓存行为:不经过本地缓存
    			objectMetadata.setHeader("Pragma", "no-cache");//设置页面不缓存
    			objectMetadata.setContentType(getcontentType(suffix));
    			objectMetadata.setContentDisposition("inline;filename=" + filedir + "." + suffix);
    			// 上传文件
    			ossClient.putObject(bucketName, filedir, in, objectMetadata);
    			
    			Date expiration = null;//过期时间
    			String[] split = filedir.split("/");
    			if(split[0].equals("circle")){// 朋友圈图片,设置URL过期时间为3个月 
    				expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 90);
    			}else{// 头像,设置URL过期时间为10年
    				expiration = new Date(new Date().getTime() + 3600l * 1000 * 24 * 365 * 10);
    			}
    			// 生成URL
    			url = ossClient.generatePresignedUrl(bucketName, filedir, expiration);
    			
    		} catch (IOException e) {
    			e.printStackTrace();
    		} finally {
    			ossClient.shutdown();
    			try {
    				if (in != null) {
    					in.close();
    				}
    			} catch (IOException e) {
    				e.printStackTrace();
    			}
    		}
    		return url.toString();
    	}
    
    	/**删除图片
    	 * @param key 
    	 */
    	public static void deletePicture(String key){
    		ossClient  = new OSSClient(endpoint, accessKeyId, accessKeySecret);
    		ossClient.deleteObject(bucketName, key);
    		ossClient.shutdown();
    	}
    
    	/**
    	* Description: 判断OSS服务文件上传时文件的contentType
    	* @param suffix 文件后缀
    	* @return String HTTP Content-type
    	*/
    	public static String getcontentType(String suffix) {
    		System.out.println("------------>文件格式为:  " + suffix);
    		if (suffix.equalsIgnoreCase("bmp")) {
    			return "image/bmp";
    		} else if (suffix.equalsIgnoreCase("gif")) {
    			return "image/gif";
    		} else if (suffix.equalsIgnoreCase("jpeg") || suffix.equalsIgnoreCase("jpg")) {
    			return "image/jpeg";
    		} else if (suffix.equalsIgnoreCase("png")) {
    			return "image/png";
    		} else if (suffix.equalsIgnoreCase("html")) {
    			return "text/html";
    		} else if (suffix.equalsIgnoreCase("txt")) {
    			return "text/plain";
    		} else if (suffix.equalsIgnoreCase("vsd")) {
    			return "application/vnd.visio";
    		} else if (suffix.equalsIgnoreCase("pptx") || suffix.equalsIgnoreCase("ppt")) {
    			return "application/vnd.ms-powerpoint";
    		} else if (suffix.equalsIgnoreCase("docx") || suffix.equalsIgnoreCase("doc")) {
    			return "application/msword";
    		} else if (suffix.equalsIgnoreCase("xml")) {
    			return "text/xml";
    		} else if (suffix.equalsIgnoreCase("mp3")) {
    			return "audio/mp3";
    		} else if (suffix.equalsIgnoreCase("amr")) {
    			return "audio/amr";
    		} else {
    			return "text/plain";
    		}
    	}
    }

### 参考:    ###

阿里云开放平台: https://help.aliyun.com/document\_detail/32012.html?spm=5176.doc32013.6.654.6y7YbO  
  
API手册: http://aliyun\_portal\_storage.oss.aliyuncs.com/oss\_api/oss\_javahtml/index.html