이 글에서는 주로 Java로 간단한 웹 서비스를 구현하는 방법을 자세히 소개하고 있는데, 관심 있는 친구들은 참고해 보세요.
이 글의 예시는 Java에서 웹 서비스를 구현하는 방법을 공유합니다. 구체적인 코드는 참고용입니다.
테스트 후 버그는 jdk1.6.10 이하 버전을 사용하는 것이 좋습니다. 위
1. 정의인터페이스
package org.enson.chan; import javax.jws.WebService; import javax.jws.soap.SOAPBinding; @WebService @SOAPBinding(style=SOAPBinding.Style.RPC) public interface IMyService { public int add(int a , int b); public int max(int a , int b); }
2. 인터페이스 구현
package org.enson.chan; import javax.jws.WebService; @WebService(endpointInterface="org.enson.chan.IMyService") public class MyServiceImpl implements IMyService { public int add(int a, int b) { System.out.println(a+"+"+b+"="+(a+b)); return a+b; } public int max(int a, int b) { System.out.println("a与b比较大小,取大值"+((a>b)?a:b)); return (a>b)?a:b; } }
3. 서비스 정의
package org.enson.chan; import javax.xml.ws.Endpoint; public class MyServer { public static void main(String[] args) { String address = "http://localhost:8090/ns"; Endpoint.publish(address, new MyServiceImpl()); } }
4.
package org.enson.chan; import java.net.MalformedURLException; import java.net.URL; import javax.xml.namespace.QName; import javax.xml.ws.Service; public class TestClient { public static void main(String[] args) { try { URL url = new URL("http://localhost:8090/ns?wsdl"); QName sname = new QName("http://chan.enson.org/", "MyServiceImplService"); //创建服务 Service service = Service.create(url,sname); //实现接口 IMyService ms = service.getPort(IMyService.class); System.out.println(ms.add(12,33)); //以上服务有问题,依然依赖于IMyServie接口 } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }
5. TestSoap
import java.io.IOException; import java.io.StringReader; import java.io.StringWriter; import java.net.URL; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; import javax.xml.bind.Marshaller; import javax.xml.namespace.QName; import javax.xml.soap.MessageFactory; import javax.xml.soap.SOAPBody; import javax.xml.soap.SOAPBodyElement; import javax.xml.soap.SOAPEnvelope; import javax.xml.soap.SOAPException; import javax.xml.soap.SOAPHeader; import javax.xml.soap.SOAPMessage; import javax.xml.soap.SOAPPart; import javax.xml.transform.Source; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerConfigurationException; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.TransformerFactoryConfigurationError; import javax.xml.transform.dom.DOMResult; import javax.xml.transform.stream.StreamSource; import javax.xml.ws.Dispatch; import javax.xml.ws.Service; import javax.xml.ws.soap.SOAPFaultException; import javax.xml.xpath.XPath; import javax.xml.xpath.XPathConstants; import javax.xml.xpath.XPathExpressionException; import javax.xml.xpath.XPathFactory; import org.junit.Test; import org.soap.service.User; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class TestSoap { private String ns = "http://service.soap.org/"; private String wsdlUrl = "http://localhost:8989/ms?wsdl"; @Test public void test01() { try { MessageFactory factory = MessageFactory.newInstance(); SOAPMessage message = factory.createMessage(); SOAPPart part = message.getSOAPPart(); SOAPEnvelope envelope = part.getEnvelope(); SOAPBody body = envelope.getBody(); QName qname = new QName("http://java.zttc.edu.cn/webservice", "add","ns");//<ns:add xmlns="http://java.zttc.edu.cn/webservice"/> //body.addBodyElement(qname).setValue("<a>1</a><b>2</b>"); SOAPBodyElement ele = body.addBodyElement(qname); ele.addChildElement("a").setValue("22"); ele.addChildElement("b").setValue("33"); message.writeTo(System.out); } catch (SOAPException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } @Test public void test02() { try { URL url = new URL(wsdlUrl); QName sname = new QName(ns,"MyServiceImplService"); Service service = Service.create(url,sname); Dispatch<SOAPMessage> dispatch = service.createDispatch(new QName(ns,"MyServiceImplPort"), SOAPMessage.class, Service.Mode.MESSAGE); SOAPMessage msg = MessageFactory.newInstance().createMessage(); SOAPEnvelope envelope = msg.getSOAPPart().getEnvelope(); SOAPBody body = envelope.getBody(); QName ename = new QName(ns,"add","nn");//<nn:add xmlns="xx"/> SOAPBodyElement ele = body.addBodyElement(ename); ele.addChildElement("a").setValue("22"); ele.addChildElement("b").setValue("33"); msg.writeTo(System.out); System.out.println("\n invoking....."); SOAPMessage response = dispatch.invoke(msg); response.writeTo(System.out); System.out.println(); Document doc = response.getSOAPPart().getEnvelope().getBody().extractContentAsDocument(); String str = doc.getElementsByTagName("addResult").item(0).getTextContent(); System.out.println(str); } catch (SOAPException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } @Test public void test03() { try { URL url = new URL(wsdlUrl); QName sname = new QName(ns,"MyServiceImplService"); Service service = Service.create(url,sname); Dispatch<Source> dispatch = service.createDispatch(new QName(ns,"MyServiceImplPort"), Source.class, Service.Mode.PAYLOAD); User user = new User(3,"zs","张三","11111"); JAXBContext ctx = JAXBContext.newInstance(User.class); Marshaller mar = ctx.createMarshaller(); mar.setProperty(Marshaller.JAXB_FRAGMENT, true); StringWriter writer= new StringWriter(); mar.marshal(user, writer); String payload = "<nn:addUser xmlns:nn=\""+ns+"\">"+writer.toString()+"</nn:addUser>"; System.out.println(payload); StreamSource rs = new StreamSource(new StringReader(payload)); Source response = (Source)dispatch.invoke(rs); Transformer tran = TransformerFactory.newInstance().newTransformer(); DOMResult result = new DOMResult(); tran.transform(response, result); XPath xpath = XPathFactory.newInstance().newXPath(); NodeList nl = (NodeList)xpath.evaluate("//user", result.getNode(),XPathConstants.NODESET); User ru = (User)ctx.createUnmarshaller().unmarshal(nl.item(0)); System.out.println(ru.getNickname()); } catch (IOException e) { e.printStackTrace(); } catch (JAXBException e) { e.printStackTrace(); } catch (TransformerConfigurationException e) { e.printStackTrace(); } catch (TransformerFactoryConfigurationError e) { e.printStackTrace(); } catch (TransformerException e) { e.printStackTrace(); } catch (XPathExpressionException e) { e.printStackTrace(); } } @Test public void test04() { try { URL url = new URL(wsdlUrl); QName sname = new QName(ns,"MyServiceImplService"); Service service = Service.create(url,sname); Dispatch<SOAPMessage> dispatch = service.createDispatch(new QName(ns,"MyServiceImplPort"), SOAPMessage.class, Service.Mode.MESSAGE); SOAPMessage msg = MessageFactory.newInstance().createMessage(); SOAPEnvelope envelope = msg.getSOAPPart().getEnvelope(); SOAPBody body = envelope.getBody(); SOAPHeader header = envelope.getHeader(); if(header==null) header = envelope.addHeader(); QName hname = new QName(ns,"authInfo","nn"); header.addHeaderElement(hname).setValue("aabbccdd"); QName ename = new QName(ns,"list","nn");//<nn:add xmlns="xx"/> body.addBodyElement(ename); msg.writeTo(System.out); System.out.println("\n invoking....."); SOAPMessage response = dispatch.invoke(msg); response.writeTo(System.out); System.out.println(); Document doc = response.getSOAPBody().extractContentAsDocument(); NodeList nl = doc.getElementsByTagName("user"); JAXBContext ctx = JAXBContext.newInstance(User.class); for(int i=0;i<nl.getLength();i++) { Node n = nl.item(i); User u = (User)ctx.createUnmarshaller().unmarshal(n); System.out.println(u.getNickname()); } } catch (SOAPException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (JAXBException e) { e.printStackTrace(); } } @Test public void test05() { try { URL url = new URL(wsdlUrl); QName sname = new QName(ns,"MyServiceImplService"); Service service = Service.create(url,sname); Dispatch<SOAPMessage> dispatch = service.createDispatch(new QName(ns,"MyServiceImplPort"), SOAPMessage.class, Service.Mode.MESSAGE); SOAPMessage msg = MessageFactory.newInstance().createMessage(); SOAPEnvelope envelope = msg.getSOAPPart().getEnvelope(); SOAPBody body = envelope.getBody(); QName ename = new QName(ns,"login","nn");//<nn:add xmlns="xx"/> SOAPBodyElement ele = body.addBodyElement(ename); ele.addChildElement("username").setValue("ss"); ele.addChildElement("password").setValue("dd"); msg.writeTo(System.out); System.out.println("\n invoking....."); SOAPMessage response = dispatch.invoke(msg); response.writeTo(System.out); System.out.println(); } catch(SOAPFaultException e){ System.out.println(e.getMessage()); } catch (SOAPException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }
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