Scala/Play：javax.xml.soap请求标题内容类型问题

Question

在我的Scala/Play应用程序中，我有一个对SOAP API的简单调用：

import javax.xml.soap._


object API {


    def call = {

        val soapConnectionFactory = SOAPConnectionFactory.newInstance
        val soapConnection = soapConnectionFactory.createConnection

        val url = "http://123.123.123.123"

        val soapResponse = soapConnection.call(createSOAPRequest, url)

        soapConnection.close

    }


    def createSOAPRequest = {

        val messageFactory = MessageFactory.newInstance
        val soapMessage = messageFactory.createMessage
        val soapPart = soapMessage.getSOAPPart

        val serverURI = "http://some.thing.xsd/"

        val envelope = soapPart.getEnvelope
        envelope.addNamespaceDeclaration("ecl", serverURI)

        val soapBody = envelope.getBody
        val soapBodyElem = soapBody.addChildElement("TestRequest", "ecl")
        soapBodyElem.addChildElement("MessageID", "ecl").addTextNode("Valid Pricing Test")
        soapBodyElem.addChildElement("MessageDateTime", "ecl").addTextNode("2012-04-13T10:50:55")
        soapBodyElem.addChildElement("BusinessUnit", "ecl").addTextNode("CP")
        soapBodyElem.addChildElement("AccountNumber", "ecl").addTextNode("91327067")

        val headers = soapMessage.getMimeHeaders
        headers.setHeader("Content-Type", "application/json; charset=utf-8")
        headers.addHeader("SOAPAction", serverURI + "TestRequest")      
        headers.addHeader("Authorization", "Basic wfewefwefwefrgergregerg")

        println(headers.getHeader("Content-Type").toList)

        soapMessage.saveChanges

        soapMessage

    }

println输出我设置的右侧内容类型标题：

List(application/soap+xml; charset=utf-8)

但是我调用的远程SOAP API以415响应：

Bad Response; Cannot process the message because the content type 'text/xml; charset=utf-8' was not the expected type 'application/soap+xml; charset=utf-8'.

我已经检查了用wireshark发送的请求，事实上，Content-Type标头是错误的：

Content-Type: text/xml; charset=utf-8

在这种情况下，为什么我设置的内容类型被忽略？我该如何修复它？

更新：我想我已经了解了一些事情：

SOAPPart对象是MIME部件，具有MIME头内容Id、内容位置和内容类型。因为内容类型的值必须是“text/xml”，所以SOAPPart对象自动具有内容类型的MIME头，其值设置为“text/xml”。该值必须为“text/xml”，因为消息的SOAP部分中的内容必须为xml格式。非“text/xml”类型的内容必须在AttachmentPart对象中，而不是在SOAPPart对象中。

来源

只需要找出如何更改我的代码来匹配它。

UPDATE2:SOLVED只需要更改1行以指示这是SOAP 1.2：

val messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL)

Answer 1

只需更改1行，以指示这是SOAP 1.2，并自动设置右标题：

val messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL)