前两天有个同事说他们项目组有个用.net实现的WebService，需要用java客户端访问，让我帮着看看怎么做，正好最近在用axis2，就试了试，虽然最后解决了，但还是稍微碰到了些障碍，特别记录下来以供参考。
.net的WebService是接收两个整数，返回它们的和，描述是这样的，对于.net开发人员来说应该很熟悉：
POST /TestWebService1/Service1.asmx HTTP/1.1
Host: XXXX
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://tempuri.org/test"
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<test xmlns="http://tempuri.org/">
<a>int</a>
<b>int</b>
</test>
</soap:Body>
</soap:Envelope>
HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<testResponse xmlns="http://tempuri.org/">
<testResult>int</testResult>
</testResponse>
</soap:Body>
</soap:Envelope>
最后的客户端java代码是这样的，需要注意的是红色部分：
package sample;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.axiom.om.OMNamespace;
import org.apache.axis2.Constants;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
public class AXIOMClient {
private static EndpointReference targetEPR =
new EndpointReference("http://XXXX/TestWebService1/Service1.asmx");
public static OMElement getTopTree() {
OMFactory fac = OMAbstractFactory.getOMFactory();
OMNamespace omNs = fac.createOMNamespace("http://tempuri.org/", "ns");
OMElement method = fac.createOMElement("test", omNs);
OMElement value1 = fac.createOMElement("a", omNs);
value1.addChild(fac.createOMText(value1, "12"));
method.addChild(value1);
OMElement value2 = fac.createOMElement("b", omNs);
value2.addChild(fac.createOMText(value2, "33"));
method.addChild(value2);
return method;
}
public static void main(String[] args) {
try {
OMElement getTopTree = getTopTree();
Options options = new Options();
options.setTo(targetEPR);
options.setAction("http://tempuri.org/test");
options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
ServiceClient sender = new ServiceClient();
sender.setOptions(options);
OMElement result = sender.sendReceive(getTopTree);
String response = result.getFirstElement().getText();
System.err.println("RET: " + response);
} catch (Exception e) {
e.printStackTrace();
}
}
}
