阿里云oss采用后台调用java上传的方式什么意思

前段时间正好做个项目，就是用的oss，普通上传和断点续传，代码贴出来，看是不是你需要的

public class OssManage {    public static  String ACCESS_KEY_ID  = null;    public static  String  ACCESS_KEY_SECRET = null;    public static  String  ENDPOINT = null;    public static  String  BUCKETNAME = null;    public static  String  BUCKETNAME_VIDEO = null;    public static String OUT_OF_DATE = null;    private  OSSClient client  = null;    private  ObjectMetadata meta = null;    static{        try {            ACCESS_KEY_ID  = SysConst.getProperty("OSS_ACCESS_KEY_ID");            ACCESS_KEY_SECRET = SysConst.getProperty("OSS_ACCESS_KEY_SECRET");            ENDPOINT = SysConst.getProperty("OSS_ENDPOINT");             BUCKETNAME = SysConst.getProperty("OSS_BUCKETNAME");             BUCKETNAME_VIDEO = SysConst.getProperty("OSS_BUCKETNAME_VIDEO");             OUT_OF_DATE = SysConst.getProperty("OSS_OUT_OF_DATE");        } catch (java.lang.Exception e) {            e.printStackTrace();        }    }         public void init(){         // <a href="https://www.baidu.com/s?wd=%E5%88%9D%E5%A7%8B%E5%8C%96&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">初始化</a>一个OSSClient            client = new OSSClient(ENDPOINT,ACCESS_KEY_ID, ACCESS_KEY_SECRET);            meta = new ObjectMetadata();    }         /**     * @Description: 上传文件到OSS<a href="https://www.baidu.com/s?wd=%E6%96%87%E4%BB%B6%E6%9C%8D%E5%8A%A1%E5%99%A8&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">文件服务器</a>     * @param content  文件流     * @param key    上传为OSS<a href="https://www.baidu.com/s?wd=%E6%96%87%E4%BB%B6%E6%9C%8D%E5%8A%A1%E5%99%A8&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">文件服务器</a>的唯一标识     * @param mimeType  文档类型     * @throws Exception      * @ReturnType:String   OSSObject的ETag值。    */    public String  uploadFile(InputStream content,String key,String mimeType) throws Exception{        //进行<a href="https://www.baidu.com/s?wd=%E5%88%9D%E5%A7%8B%E5%8C%96&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">初始化</a>        init();            // 必须设置ContentLength            meta.setContentType(mimeType);            // 上传Object.            LogUtil.printConsoleLog("*****************上传图片到oss服务器开始*****************" + key);            PutObjectResult result = client.putObject(BUCKETNAME, key, content, meta);            LogUtil.printConsoleLog("*****************上传图片到oss服务器结束*****************" + key);            return result.getETag();    }           /**     * @Description: 根据key获取oss服务器上的图片地址     * @param key     * @return      * @ReturnType:String    */    public String getImgURl(String key){        init();        Date expires = new Date (new Date().getTime() + Integer.parseInt(OUT_OF_DATE)); // 30 minute to expire        GeneratePresignedUrlRequest generatePresignedUrlRequest ;        if(key.startsWith("msplatform")){            generatePresignedUrlRequest =new GeneratePresignedUrlRequest(BUCKETNAME, key);        }else {            generatePresignedUrlRequest =new GeneratePresignedUrlRequest(BUCKETNAME_VIDEO, key);        }        generatePresignedUrlRequest.setExpiration(expires);        URL url = client.generatePresignedUrl(generatePresignedUrlRequest);        return url.toString();    }    /**     * @Description:根据key获取oss服务器上的ipa文件地址     * @param key     * @return      * @ReturnType:String     */    public String getIpaURl(String key){        init();        Date expires = new Date(new Date().getTime()+ 10*365*24*3600*1000);        GeneratePresignedUrlRequest generatePresignedUrlRequest ;        if(key.startsWith("msplatform")){            generatePresignedUrlRequest =new GeneratePresignedUrlRequest(BUCKETNAME, key);        }else {            generatePresignedUrlRequest =new GeneratePresignedUrlRequest(BUCKETNAME_VIDEO, key);        }        generatePresignedUrlRequest.setExpiration(expires);        URL url = client.generatePresignedUrl(generatePresignedUrlRequest);        return url.toString();    }         /**     * @Description: 根据key获取oss服务器上的图片地址     * @param key     * @return      * @ReturnType:String    */    public InputStream  getObject(String key){        init();        OSSObject object = null;        if(key.startsWith("msplatform")){            object= client.getObject(BUCKETNAME, key);        }else{            object= client.getObject(BUCKETNAME_VIDEO, key);        }        object.getObjectMetadata().getContentType();        // 获取Object的<a href="https://www.baidu.com/s?wd=%E8%BE%93%E5%85%A5%E6%B5%81&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">输入流</a>        InputStream objectContent = object.getObjectContent();                      return objectContent;    }              /**     * @Description:删除文件     * @param key  OSS<a href="https://www.baidu.com/s?wd=%E6%96%87%E4%BB%B6%E6%9C%8D%E5%8A%A1%E5%99%A8&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">文件服务器</a>上文件的唯一标识     * @ReturnType:void    */    public void deleteFile(String key){        init();        client.deleteObject(BUCKETNAME, key);    }              /**     * @Description: 断点上传文件到OSS文件服务器     * @param content  文件流     * @param key    上传为OSS文件服务器的唯一标识     * @param position 位置    */    public String  appendObjectFile(InputStream content,String key,int position,String mimeType) throws Exception{           //进行<a href="https://www.baidu.com/s?wd=%E5%88%9D%E5%A7%8B%E5%8C%96&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y4P1R1myc4rH9bmHFBPjDz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3ErHcsPWD3nW0sP1TdPWm4PWD4" target="_blank" class="baidu-highlight">初始化</a>            init();            // 必须设置ContentLength            meta.setContentLength(position);            meta.setContentType(mimeType);            meta.setCacheControl("no-cache");            meta.setContentEncoding("utf-8");            // 上传            LogUtil.printConsoleLog("*****************断点上传图片到oss服务器开始*****************" + key);            AppendObjectRequest appendObjectRequest = new AppendObjectRequest(BUCKETNAME, key, content, meta);            appendObjectRequest.setPosition(Long.valueOf(position));            AppendObjectResult appendObjectResult =client.appendObject(appendObjectRequest);            LogUtil.printConsoleLog("*****************断点上传图片到oss服务器结束*****************" + key);            return appendObjectResult.getNextPosition().toString();    }         public static void main(String[] args) {        OssManage ossManage = new OssManage();    }}

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