Introduction à la méthode pour compléter le mode service Web en Java

Cet article présente principalement en détail la manière d'implémenter un service Web simple en Java, qui a une certaine valeur de référence. Les amis intéressés peuvent s'y référer

L'exemple de cet article partage avec vous la manière d'implémenter un service Web dans. Java. Le code spécifique est pour votre référence. Le contenu spécifique est le suivant

Après les tests, des bugs apparaîtront sous jdk1.6.10. ci-dessus

1. DéfinitionInterface

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. Implémenter l'interface

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. 🎜>4. Service de test

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());
 }
}

5. TestSoap

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();
 }
 }

}

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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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