[Axis2]incorrect content-type for SOAP version

在测试的过程中遇到了一个奇怪的异常：

com.sun.xml.internal.messaging.saaj.soap.SOAPVersionMismatchException: 
		Cannot create message: incorrect content-type for SOAP version.
		Got: application/soap+xml; 
				action="http://smarttrust.com/opm/ws/opm/ActivateRequest"; 
				charset=UTF-8 
		Expected: text/xml

通过异常信息，可以很明显的发现是携带SOAP消息的HTTP报文请求头的Content-Type字段出了问题

通过抓包可以看到HTTP报文请求头的格式是下面这个样子的（还要注意的一点是，没有SOAPAction字段，而是action字段）

POST /opm HTTP/1.1
Content-Type: application/soap+xml; charset=UTF-8; 
action="http://smarttrust.com/opm/ws/opm/ActivateRequest"
User-Agent: Axis2
Host: 10.160.68.107:9010
Transfer-Encoding: chunked

之后我新建了一个测试工程，仔细的查看了下Axis2自动生成的代码，发现有这么一段：

public MathStub(
		org.apache.axis2.context.ConfigurationContext configurationContext,
		java.lang.String targetEndpoint, boolean useSeparateListener)
		throws org.apache.axis2.AxisFault {
	populateAxisService();
	populateFaults();
	_serviceClient = new org.apache.axis2.client.ServiceClient(
			configurationContext, _service);
	_serviceClient.getOptions().setTo(
			new org.apache.axis2.addressing.EndpointReference(targetEndpoint));
	_serviceClient.getOptions().setUseSeparateListener(useSeparateListener);
	_serviceClient.getOptions().setSoapVersionURI(
			org.apache.axiom.soap.SOAP11Constants.SOAP_ENVELOPE_NAMESPACE_URI);
}

这部分是用来设置SOAP版本的

_serviceClient.getOptions().setSoapVersionURI(
		org.apache.axiom.soap.SOAP11Constants.SOAP_ENVELOPE_NAMESPACE_URI);

如果使用SOAP11Constants（SOAP 1.1），HTTP请求头如下：

POST /test HTTP/1.1
Content-Type: text/xml; charset=UTF-8
SOAPAction: "urn:add"
User-Agent: Axis2
Host: 146.11.42.87:9876
Transfer-Encoding: chunked

如果使用SOAP12Constants（SOAP 1.2） ，HTTP请求头如下：

POST /test HTTP/1.1
Content-Type: application/soap+xml; charset=UTF-8; action="urn:add"
User-Agent: Axis2
Host: 146.11.42.87:9876
Transfer-Encoding: chunked

如果不设置这个参数，HTTP请求头如下（和SOAP 1.1是一样的，可以确认默认使用SOAP 1.1）：

POST /test HTTP/1.1
Content-Type: text/xml; charset=UTF-8
SOAPAction: "urn:add"
User-Agent: Axis2
Host: 146.11.42.87:9876
Transfer-Encoding: chunked

HTTP响应头中的Content-Type字段也是一样的

参考：

http://stackoverflow.com/questions/8092031/cannot-create-message-incorrect-content-type-for-soap-version-got-text-xml-ch