從Java SE程序調用Web服務方法

Question

如何從Java桌面客戶端調用Web服務方法。 基本上我的Java程序在啟用Internet的桌面上運行。 我的網絡服務網址是例如。 localhost:8090/Service.svc ，此Web服務基本上是將數據存儲在數據庫中，我們只需要調用Web服務方法並傳遞xml字符串作為參數即可。

我的示例代碼如下所示：

public static void main(String [] args)
    {
        String accessURL,method, parameters[];
        try {

            String xml = "<DocumentElement>"
                        + "<Table1>"
                        + "<ConsumptionID>0</ConsumptionID>"
                        + "<ConsumptionDate>2012/01/01 00:00:00</ConsumptionDate>"
                        + "<MeterNumber>99999901</MeterNumber>"
                        + "<Voltage>200</Voltage>"
                        + "<Ampere>50</Ampere>"
                        + "<PowerFactor>0.91</PowerFactor>"
                        + "<KiloWatt>8525</KiloWatt>"
                        + "<HourValue>3</HourValue>"
                        + "<EndKiloWattHour>5841</EndKiloWattHour>"
                        + "<KVA>1000</KVA>"
                        + "<ClientID>1011</ClientID>"
                        + "<CreatedBy>1</CreatedBy>"
                        + "</Table1>"
                        + "</DocumentElement>";

            accessURL = "http://localhost:8090/Service.svc";
            method = "Save_Consumption";
            parameters = new String[1];

            parameters[0] = xml;
            Service service = new Service();
            Call call = (Call)service.createCall();
            call.setTargetEndpointAddress(new java.net.URL(accessURL));
            call.setOperationName(method);
            Object[] params = new Object[parameters.length];
            params[0]=(Object)(parameters[0]);
            String retval = (String)call.invoke(params);
            System.out.println("Operation Result: " + retval);
        } catch(Exception e) {
            System.err.println(e.toString());
            e.printStackTrace();
        }
    }

但是它顯示了異常，這是堆棧跟蹤。

run:
- Unable to find required classes (javax.activation.DataHandler and javax.mail.internet.MimeMultipart). Attachment support is disabled.
The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver.  Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
AxisFault
 faultCode: {http://schemas.microsoft.com/ws/2005/05/addressing/none}ActionNotSupported
 faultSubcode: 
 faultString: The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver.  Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
 faultActor: 
 faultNode: 
 faultDetail: 
    {http://xml.apache.org/axis/}stackTrace:The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver.  Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
    at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
    at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
    at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1741)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2898)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:607)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:488)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:835)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1210)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:568)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:302)
    at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
    at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
    at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
    at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
    at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
    at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
    at org.apache.axis.client.Call.invoke(Call.java:2767)
    at org.apache.axis.client.Call.invoke(Call.java:2443)
    at org.apache.axis.client.Call.invoke(Call.java:2366)
    at org.apache.axis.client.Call.invoke(Call.java:1812)
    at com.lmeasure.utils.HelloClient.main(HelloClient.java:54)

    {http://xml.apache.org/axis/}hostname:eeipldt0132

The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver.  Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
    at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
    at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
    at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:606)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1741)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2898)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:607)
    at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:116)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:488)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:835)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1210)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:568)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:302)
    at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
    at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
    at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
    at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
    at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
    at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
    at org.apache.axis.client.Call.invoke(Call.java:2767)
    at org.apache.axis.client.Call.invoke(Call.java:2443)
    at org.apache.axis.client.Call.invoke(Call.java:2366)
    at org.apache.axis.client.Call.invoke(Call.java:1812)
    at com.lmeasure.utils.HelloClient.main(HelloClient.java:54)

誰能知道這有什么問題，或者提供任何好的教程/工作示例來解決我的問題？

Answer 1

問題似乎是您沒有發布適當的XML。 對於SOAP服務，手工處理SOAP消息非常困難。 您應該讓Axis為您執行此操作。

對於初學者，您將使用服務WSDL。 這是XML模式中的服務定義。

一旦有了WSDL，就可以生成客戶端存根。 存根允許您使用Java對象而不是XML來構建客戶端請求。

您可以使用wsdltojava工具在Axis中執行此操作 。 以下是文檔： http : //axis.apache.org/axis/java/user-guide.html#WSDL2JavaBuildingStubsSkeletonsAndDataTypesFromWSDL 。

這是一個示例： http : //www.digizol.com/2008/07/web-service-axis-tutorial-client-server.html

Answer 2

您可以嘗試使用JDK 6中的wsimport工具來獲取WebService的客戶端。 該工具生成可在proyect中使用的Java代碼。 為此，您需要WSDL文件。

您可以嘗試下一個命令：

 wsimport http://localhost:8090/Service.svc?wsdl -s C:\sources -Xnocompile

您可以將generate類用於調用WebService之類的東西：

ExampleService exampleService = new ExampleService();
Example example = exampleService.getExamplePort();
ReturnValue rv = example.doSomething(param);

通過這種方式，您不需要其他庫。

您可以在使用Java 6和JAX-WS使用Web服務中找到一個很好的例子。

Answer 3

看起來應該在名稱為“ SOAPAction”的HTTP標頭中設置方法名稱“ Save_Consumption”。

我不熟悉Service和Call方法，但是使用普通的舊HttpURLConnection API，它將是：

    URL httpUrl = new URL(accessUrl);
    HttpURLConnection connection = (HttpURLConnection) httpUrl.openConnection();
    connection.addRequestProperty("SOAPAction", soapAction);

就像其他張貼者所說的那樣，您可以使用wsimport命令，但是根據我的經驗，這是心臟病發作的創可貼。 很好，您可以嘗試並嘗試！