Question

我正在尝试使用J2ME代码通过Amazon REST API（POST对象）将文件上传到Amazon S3。这是我的代码：

String url = "http://xxxxxxxxx.s3.amazonaws.com";
       //open connection
       hc = (HttpConnection) Connector.open(url,Connector.READ_WRITE);
       //set Post data
       hc.setRequestMethod(HttpConnection.POST);
       //set postvalues
       hc.setRequestProperty("Content-Type", "multipart/form-data; boundary=-----1234567890");
       hc.setRequestProperty("User-Agent", "Profile/MIDP-1.0 Confirguration/CLDC-1.0");
       hc.setRequestProperty("Content-Language", "en-US");
       //hc.setRequestProperty("acl", "public-read");
       //hc.setRequestProperty("Accept", "text/plain");
       hc.setRequestProperty("Keep-Alive", "300");
       hc.setRequestProperty("Connection", "keep-alive");
       hc.setRequestProperty("AWSAccessKeyId", "XXXXXXXXXXXXXXX");
       hc.setRequestProperty("key", "XXXXXXXXXXXXXXX");
       //hc.setRequestProperty("file", "contactss.vcf");
       //hc.setRequestProperty("submit", "asdasdasdasd");
       hc.setRequestProperty("Content-Length", data.length() + ("-----1234567890".getBytes().length * 2) + "");
       hc.setRequestProperty("Content-length", data.length() + ("-----1234567890".getBytes().length * 2) + "");

       DataOutputStream dos = hc.openDataOutputStream();
       //dos.write("-----1234567890".getBytes());
       dos.write(data.getBytes());

执行后。我收到以下回复：

<Error><Code>InvalidArgument</Code><Message>POST requires exactly one file upload per request.</Message><ArgumentValue>0</ArgumentValue><ArgumentName>file</ArgumentName><RequestId>686AB7E3C10779B9</RequestId><HostId>75OKRHQ59yfJLZ8nThsNE8G7PukbBdnoL7lonZX6EprPpqik5pAcKOK/TG9tGBdA</HostId></Error>

但该文件未上传到Amazon S3。请帮我解决。

Answer 1

看起来你的文件行被注释掉了，你甚至没有发送文件。

...
hc.setRequestProperty("key", "XXXXXXXXXXXXXXX");
//hc.setRequestProperty("file", "contactss.vcf");
//hc.setRequestProperty("submit", "asdasdasdasd");
hc.setRequestProperty("Content-Length", data.length() + ("------1234567890".getBytes().length * 2) + "");
...

话虽如此，我强烈建议您使用AWS Java SDK：

http://aws.amazon.com/sdkforjava/

J2ME通过REST API上传的Amazon不能通过POST对象工作

1 个答案: