Java 调用天气Webservice详解及实例代码

Java调用天气Webservice的小应用

废话不多说,直接贴代码：

 CityReq.java

package com.weather;

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name="getWeatherbyCityName",namespace="http://WebXml.com.cn/")
public class CityReq {

  private String theCityName;

  public String getTheCityName() {
    return theCityName;
  }

  @XmlElement(name="theCityName",namespace="http://WebXml.com.cn/")
  public void setTheCityName(String theCityName) {
    this.theCityName = theCityName;
  }

  
}

WeatherWebServiceTest.java

package com.weather;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPConstants;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPMessage;

import org.w3c.dom.Document;
public class WeatherWebServiceTest {

  public static void main(String[] args) {
    // TODO Auto-generated method stub
    weather();
  }
  static void weather(){
    System.out.println("开始登陆...");
    String wsdl="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl";
    System.out.println("wsdl:"+wsdl);
    HttpURLConnection urlconn=null;
    InputStream ins=null;
    OutputStream ous=null;
    try {
      URL u=new URL(wsdl);
      urlconn=(HttpURLConnection)u.openConnection();
      urlconn.setDoOutput(true);
      urlconn.setRequestMethod("POST");
      urlconn.setRequestProperty("Content-Type", "application/soap+xml; charset=utf-8");
      //urlconn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
      
      //发送数据
      ous=urlconn.getOutputStream();
      
      
      Document document=DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
      //编组
      Marshaller marsh=JAXBContext.newInstance(CityReq.class).createMarshaller();
      CityReq xmlf=new CityReq();
      xmlf.setTheCityName("北京");
      //JAXB.marshal(xmlf, new PrintWriter(System.out));
      marsh.marshal(xmlf, document);
      //创建soapmessage对象
      SOAPMessage soapMessage=MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL).createMessage();
      SOAPBody soapBody=soapMessage.getSOAPBody();
      soapBody.addDocument(document);
      SOAPEnvelope soapEnvelope = soapMessage.getSOAPPart().getEnvelope();
      soapEnvelope.removeNamespaceDeclaration("env");
      soapEnvelope.addNamespaceDeclaration("soap12", "http://www.w3.org/2003/05/soap-envelope");
      soapEnvelope.addNamespaceDeclaration("xsi", "http://www.w3.org/2001/XMLSchema-instance");
      soapEnvelope.addNamespaceDeclaration("xsd", "http://www.w3.org/2001/XMLSchema");
      soapEnvelope.setPrefix("soap12");
      soapEnvelope.removeChild(soapEnvelope.getHeader());
      soapBody.setPrefix("soap12");
      //发送数据
      soapMessage.writeTo(ous);
      // soapMessage.writeTo(System.out);
      System.out.println(urlconn.getResponseCode());
      System.out.println(urlconn.getResponseMessage());
      //接收数据
      ins=urlconn.getInputStream();
      //接收的数据需要解组?
      StringBuffer respMsg=new StringBuffer();
      byte[] bytes=new byte[1024*1024];
      int a=-1;
      while ((a=ins.read(bytes))!=-1) {
        respMsg.append(new String(bytes,0,a));
      }
      System.out.println(respMsg.length());
      System.out.println(respMsg);
      
      //解组的方式
     /* SOAPMessage responseMessage=MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL).createMessage(null, ins);
      Unmarshaller unmarsh=JAXBContext.newInstance(CityResp.class).createUnmarshaller();
      JAXBElement<CityResp> reponse= unmarsh.unmarshal(responseMessage.getSOAPBody().extractContentAsDocument(), CityResp.class);
      CityResp uresp= reponse.getValue();
      System.out.println(uresp.getResult());*/
      
      ous.close();
      ins.close();
      urlconn.disconnect();
    } catch (Exception e) {
      e.printStackTrace();
    }finally{
      
    }
  }
  
   
}

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