使用Axis2开发Web服务 --- 客户端调用

最新推荐文章于 2019-07-22 16:09:56 发布

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最新推荐文章于 2019-07-22 16:09:56 发布

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分类专栏： Java相关文章标签： web服务 string object exception interface stream

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本文介绍如何利用Axis2创建客户端以调用Web服务，包括所需的Jar包及关键代码示例，展示了如何更新和获取服务端数据。

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关于服务端的开发请参照上例：http://blog.youkuaiyun.com/kunshan_shenbin/archive/2009/01/20/3839417.aspx

这里只讲述如何使用Axis2建立客户端来调用Web服务。

如下图所示建立工程：

所需Jar包如上图所示。

代码：

Axis2Client.java

package client; import java.util.Iterator; import javax.xml.namespace.QName; import org.apache.axiom.om.OMElement; import org.apache.axis2.AxisFault; import org.apache.axis2.addressing.EndpointReference; import org.apache.axis2.client.Options; import org.apache.axis2.rpc.client.RPCServiceClient; public class Axis2Client { public static void main(String[] args) { String srvcUrl = "http://localhost:8080/Axis2Web/services/StockQuoteService"; Axis2Client client = new Axis2Client(); client.update(srvcUrl, "Key1", 111); client.update(srvcUrl, "Key2", 222); client.update(srvcUrl, "Key3", 333); System.out.println(client.getPrice(srvcUrl, "Key2"));; } public void update(String srvcUrl, String symbol, double price){ QName qname = new QName("http://quickstart.samples/xsd", "update"); Object param[] = new Object[] { symbol, price }; try { RPCServiceClient client = new RPCServiceClient(); Options options = new Options(); options.setTo(new EndpointReference(srvcUrl)); options.setAction("urn:update"); client.setOptions(options); OMElement element = client.invokeBlocking(qname, param); System.out.println(element); } catch (AxisFault e) { //e.printStackTrace();//打开会抛异常 } } public double getPrice(String srvcUrl,String symbol) { QName qname = new QName("http://quickstart.samples/xsd", "getPrice"); Object param[] = new Object[] { symbol }; try { RPCServiceClient client = new RPCServiceClient(); Options options = new Options(); options.setTo(new EndpointReference(srvcUrl)); options.setAction("urn:getPrice"); client.setOptions(options); OMElement element = client.invokeBlocking(qname, param); Iterator<?> values = element.getChildrenWithName(new QName("http://quickstart.samples/xsd", "return")); while (values.hasNext()) { OMElement omElement = (OMElement) values.next(); return new Double(omElement.getText()); } } catch (AxisFault e) { e.printStackTrace(); } return 0; } }

StockQuoteService.java

package samples.quickstart.service.pojo; public interface StockQuoteService { public double getPrice(String symbol); public void update(String symbol, double price); }

Axis2Client.java中注释的那句话放开的话会抛错：

org.apache.axis2.AxisFault: The input stream for an incoming message is null.
at org.apache.axis2.transport.TransportUtils.createSOAPMessage(TransportUtils.java:71)
at org.apache.axis2.description.OutInAxisOperationClient.handleResponse(OutInAxisOperation.java:326)
at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:389)
at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
at Scenario6Client.main(Scenario6Client.java:29)
Exception in thread "main"

怀疑是Bug：http://jira.codehaus.org/browse/MAXISTOOLS-32

其他资料：

http://hi.baidu.com/hivemind/blog/item/8571abcb898380f953664f6c.html

http://topic.youkuaiyun.com/u/20081221/18/6b9733dd-a0b0-4a76-8af4-ce6719c228c7.html