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I'm very new to Uploadcare. I am trying to retrieve a file UUID from Uploadcare, then use that UUID to copy the image to my S3 storage bucket. I am using the Uploadcare API available on git-hub:here.

The code is super easy to implement. Here's what I have:

package javaapplication2;

import com.uploadcare.api.Client;
import com.uploadcare.data.CopyFileData;
public class UploadAPITest {

public static void main(String[] args) {

    Client client = new Client("mypublicKey", "myprivateKey");
    CopyFileData copyFile = client.copyFile("d5e97aca-f6d9-47ea-8c76-1fe36d093b2d", "messagePicUploadCenter");
    System.out.println("result: " + copyFile.result);
}

This code compiles with no problem. Yet when I run it, this is the error I see:

enterException in thread "main" 
com.uploadcare.exceptions.UploadcareNetworkException: Network failure!
at com.uploadcare.api.RequestHelper.executeQuery(RequestHelper.java:108)
at com.uploadcare.api.Client.copyFile(Client.java:221)
at javaapplication2.UploadAPITest.main(UploadAPITest.java:25)

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Can not instantiate value of type [simple type, class com.uploadcare.data.FileData] from String value; no single-String constructor/factory method (through reference chain: com.uploadcare.data.CopyFileData["result"])
at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator._createFromStringFallbacks(StdValueInstantiator.java:422)
at com.fasterxml.jackson.databind.deser.std.StdValueInstantiator.createFromString(StdValueInstantiator.java:298)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromString(BeanDeserializer.java:424)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:129)
at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:375)
at com.fasterxml.jackson.databind.deser.impl.FieldProperty.deserializeAndSet(FieldProperty.java:107)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:308)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:121)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:2796)
at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:1942)
at com.uploadcare.api.RequestHelper.executeQuery(RequestHelper.java:106)
... 2 more

Java Result: 1

Before the error, however, I do get a response from Uploadcare: {"type":"url","result":"s3://photopatch-upload/messageImgs/d5e97aca-f6d9-47ea-8c76-1fe36d093b2d/uniqueness.jpg"}

So I know I've connected with Uploadcare correctly because the image is in fact copied. But after the copy, the JSON that comes back may be malformed or something (I'm guessing here).

Has anyone else had this issue, or have some advice for me? I would really appreciate it. I love this service, and I think the issue has more to do with the com.faster.jackson.databind library. Here's a picture of the libraries I'm using in this simple project: http://s3.postimg.org/n37i2ts5f/image.png

4

1 回答 1

1

尝试使用

System.out.println("result: " + copyFile);

iecopyFile而不是copyFile.resultwhich 是一个FileData没有toString()方法的实例。

于 2015-02-28T20:09:13.070 回答