无法将字节数组发送到Axis上的JAX-WS Web服务 [英] Failed sending bytes array to JAX-WS web service on Axis

问题描述

我举了一个小例子来说明我的问题.这是我的网络服务:

Hi I have made a small example to show my problem. Here is my web-service:

package service;

import javax.jws.WebMethod;
import javax.jws.WebService;

@WebService
public class BytesService {

 @WebMethod
 public String redirectString(String string){
  return string+" - is what you sended";
 }

 @WebMethod
 public byte[] redirectBytes(byte[] bytes) {
  System.out.println("### redirectBytes");
  System.out.println("### bytes lenght:" + bytes.length);
  System.out.println("### message" + new String(bytes));
  return bytes;
 }

 @WebMethod
 public byte[] genBytes() {
  byte[] bytes = "Hello".getBytes();
  return bytes;
 }

}

我将其打包在jar文件中，并存储在"axis2-1.5.1/repository/servicejars"文件夹中.然后，我使用Eclipse for EE默认工具生成客户端代理.并通过以下方式在我的代码中使用它:

I pack it in jar file and store in "axis2-1.5.1/repository/servicejars" folder. Then I generate client Proxy using Eclipse for EE default utils. And use it in my code in the following way:

  BytesService service = new BytesServiceProxy();
  System.out.println("Redirect string");
  System.out.println(service.redirectString("Hello"));
  System.out.println("Redirect bytes");
  byte[] param = { (byte)21, (byte)22, (byte)23 };
  System.out.println(param.length);
  param = service.redirectBytes(param);
  System.out.println(param.length);
  System.out.println("Gen bytes");
  param = service.genBytes();
  System.out.println(param.length);

这是我的客户打印的内容:

And here is what my client prints:

Redirect string
Hello - is what you sended
Redirect bytes
3
0
Gen bytes
5

在服务器上，我有:

### redirectBytes
### bytes lenght:0
### message

因此字节数组通常可以从服务中传输，但不能从客户端接受.并且它可以很好地与字符串一起使用.现在，我使用Base64Encoder，但是我不喜欢这种解决方案.

So byte array can normally be transfered from service, but is not accepted from the client. And it works fine with strings. Now I use Base64Encoder, but I dislike this solution.

推荐答案

我怀疑问题在于将字节数组序列化为XML SOAP消息.原始SOAP消息中的XML标签可能为零字节.我建议使用SOAP监视器来窥视发送到Web服务的消息.

I suspect the problem is in serializing the byte-array into an XML SOAP message. The XML tag in the originating SOAP message is possibly zero bytes. I'd recommend using the SOAP monitor to take a peek at the message being sent to your web service.

您可能不喜欢对传输中的字节填充进行编码的想法，但是，您需要将其视为二进制数据.例如，如果有人向您发送了以UTF-8以外的其他方式编码的SOAP消息，该怎么办?您将希望避免解析SOAP消息时字节数组数据发生更改(字符集之间的转换)的可能性.

You may dislike the idea of encoding the byte-arry in transit, however, you need to consider it binary data. For example what if someone sent you a SOAP message encoded in something other than UTF-8? You'll want to avoid the possibility of the byte-array data changing (conversion between character sets) when the SOAP message is parsed.

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