调用失败ResponseCode: 404

[awei12121]

代码：
ObsClient obsClient = new ObsClient(ak, sk,endPoint);
String bucketname = "gadad";
String objectkey = "4.png";
PutObjectResult res = obsClient.putObject(bucketname, objectkey, new File("F:/bug/4.png"));
String objectUrl = res.getObjectUrl();
System.out.println("url:"+objectUrl);
报错：
Exception in thread "main" com.obs.services.exception.ObsException: Error message:Request Error.OBS service Error Message. -- ResponseCode: 404, ResponseStatus: Not Found, RequestId: 0000018B37BA186B47CE0A3CC6268D32, HostId: 32AAAQAAEAABAAAQAAEAABAAAQAAEAABCSBprWHCBsvTUqaWM2xubIYCYVkWSgAz
at com.obs.services.internal.utils.ServiceUtils.changeFromServiceException(ServiceUtils.java:544)
at com.obs.services.AbstractClient.doActionWithResult(AbstractClient.java:403)
at com.obs.services.AbstractObjectClient.putObject(AbstractObjectClient.java:284)
at com.obs.services.AbstractObjectClient.putObject(AbstractObjectClient.java:321)
at com.obs.services.AbstractObjectClient.putObject(AbstractObjectClient.java:304)
at com.tpri.ne.sync.controller.TestObs.main(TestObs.java:29)

[noaccident]

404文件找不到；“F:\bug\4.png” 或者再看下路径是否正确