HttpURLConnection 请求webservice出现错误

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出现错误：

服务器报错500

返回信息：no SOAPAction header!

<?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<soapenv:Fault>
<faultcode xmlns:ns1="http://xml.apache.org/axis/">ns1:Client.NoSOAPAction</faultcode>
<faultstring>no SOAPAction header!</faultstring>
<detail>
<ns2:hostname xmlns:ns2="http://xml.apache.org/axis/">test01</ns2:hostname>
</detail>
</soapenv:Fault>
</soapenv:Body>
</soapenv:Envelope>

解决方案：在请求端，加上一个请求头

openConnection.setRequestProperty("SOAPAction", "\"\"");或者

openConnection.setRequestProperty("SOAPAction", "");

参考另一篇博文：http://blog.csdn.net/wxyong3/article/details/38727503

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