编写CSOAPClient类，并定义成员变量_url和_httpConn，在构造函数中对其进行实例化。
_url=new URL(url); //这里url变量是SOAP服务的网址，如http://10.5.3.134/Webservices/methods1?wsdl _httpConn = (HttpURLConnection) _url.openConnection(); //这里就是获得一个SOAP服务的HttpURLConnection实例 String send_soap=createSendSOAPPackage(); //createSendSOAPPackage函数就是用来构造如上所示SOAP请求的数据包的XML字符串 _httpConn.setReadTimeout(TIME_OUT); //为HttpURLConnection对象指定一个读超时 _httpConn.setRequestProperty("User-Agent","Mozilla/4.0 (compatible; MSIE 5.0; Windows XP; DigExt)"); _httpConn.setRequestProperty( "Content-Length",String.valueOf( send_soap.length() ) ); _httpConn.setRequestProperty("Content-Type","text/xml; charset=UTF-8"); _httpConn.setRequestProperty("SOAPAction",_soap_action_str); //以上都是为HTTP请求设定请求属性，其中SOAPAction中用来指定SOAP Action的字符串。 _httpConn.setRequestMethod( "POST" ); //为请求指定提交数据模式，对于调用Web Service来说请求模式要被设置成POST模式。 _httpConn.setDoInput(true); _httpConn.setDoOutput(true); _httpConn.setUseCaches(false); _httpConn.connect(); //连接远程Url OutputStream out = _httpConn.getOutputStream(); //获取输出流对象 out.write( send_soap.getBytes() ); //将要提交服务器的SOAP请求字符流写入输出流 out.flush(); out.close(); int code=0; code = _httpConn.getResponseCode(); //用来获取服务器响应状态 if (code == HttpURLConnection.HTTP_OK) { //服务器响应状态表示成功，这此处可以来获取服务器反馈的数据信息 InputStream is=_httpConn.getInputStream(); //获取输入流对象，通过此对象可以获取服务器传回的数据信息 InputStreamReader isr = new InputStreamReader(is,"utf-8"); Document _doc=_sax.build(isr); //此处Document是jdom中的类，因为要解析服务器传回的xml数据 Element _root = _doc.getRootElement(); //此处Element是jdom中的类 ......（略） } else{ //如果服务器返回的HTTP状态不是HTTP_OK，则表示发生了错误，此时可以通过如下方法了解错误原因。 InputStream is=_httpConn.getErrorStream(); //通过getErrorStream了解错误的详情，因为错误详情也以XML格式返回，因此也可以用JDOM来获取。 InputStreamReader isr = new InputStreamReader(is,"utf-8"); Document _doc=_sax.build(isr); //此处Document是jdom中的类，因为要解析服务器传回的xml数据 Element _root = _doc.getRootElement(); //此处Element是jdom中的类 ......（略） } 以上就是通过HttpURLConnection调用SOAP的简介。 下面附上实现类的代码，供参考（未优化，大家使用时要优化一下）
CSOAPClient.java
package util;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.URL;import java.util.Hashtable;import java.util.LinkedList;import java.util.Set;import org.jdom.Attribute;import org.jdom.Document;import org.jdom.Element;import org.jdom.Namespace;import org.jdom.output.Format;import org.jdom.output.XMLOutputter;/** * * @author zhaob */public class CSOAPClient { private static int TIME_OUT=15000; private URL _url = null; private String _service_id=null; private String _method=null; private String _soap_action_str=null; private LinkedList _params = new LinkedList (); private HttpURLConnection _httpConn=null; private String _root_master_namespace_name=null; private Hashtable _root_namespace=new Hashtable (); private boolean _setted_root_master_namespace_flag=false; private boolean _hasHead=true; private boolean _hasParamType=true; private Hashtable _method_attrib=new Hashtable (); private Hashtable _method_attrib_namespace=new Hashtable (); private Hashtable _methodattrib_namespace=new Hashtable (); private Hashtable _methods_namespace=new Hashtable (); public CSOAPClient(String url,String service_id,String method,String soap_action) throws Exception { _url=new URL(url); //SOAP服务的网址 if((service_id==null)||(service_id.trim().equals(""))){ _service_id=null; } else{ _service_id=service_id; } _method=method; _soap_action_str=soap_action; createSocket(); } public void setHasParamType(boolean v){ _hasParamType=v; } public void setHasHead(boolean v){ _hasHead=v; } protected void createSocket() throws Exception { if(_httpConn==null){// Properties systemProperties = System.getProperties();// systemProperties.setProperty("http.proxyHost","192.168.1.1");// systemProperties.setProperty("http.proxyPort","8080"); _httpConn = (HttpURLConnection) _url.openConnection();; } } public void addParams(String params_name,Object v,EParamType type){ NParam np=new NParam(params_name,v,type); _params.add(np); } public void addMethodNamespace(String namespace_name,String namespace_v){ _methods_namespace.put(namespace_name,namespace_v); } public void addMethodAttrib(String attrib_name,String v,String namespace_name,String namespace_v){ _method_attrib.put(attrib_name, v); _method_attrib_namespace.put(attrib_name, namespace_name); _methodattrib_namespace.put(namespace_name,namespace_v); } public void addMethodAttrib(String attrib_name,String v){ _method_attrib.put(attrib_name, v); } public void setRootMasterNamespace(){ if(!_setted_root_master_namespace_flag){ _root_master_namespace_name="soapenv"; _root_namespace.put(_root_master_namespace_name, "http://schemas.xmlsoap.org/soap/envelope/"); _setted_root_master_namespace_flag=true; } } public void setRootMasterNamespace(String name){ if(!_setted_root_master_namespace_flag){ _root_master_namespace_name=name; _root_namespace.put(_root_master_namespace_name, "http://schemas.xmlsoap.org/soap/envelope/"); _setted_root_master_namespace_flag=true; } } public void addRootNamespace(String name,String v){ _root_namespace.put(name, v); } public String createSendSOAPPackage(){ Hashtable namespace_set=new Hashtable (); // 创建根节点 root; Element root = new Element("Envelope"); Set sets=_root_namespace.keySet(); Namespace master_namespace=null; for(String s:sets){ String v=_root_namespace.get(s); Namespace sn=Namespace.getNamespace(s, v); namespace_set.put(s, sn); if(s.equals(_root_master_namespace_name)){ root.setNamespace(sn); master_namespace=sn; } else{ root.addNamespaceDeclaration(sn); } } // 根节点添加到文档中； Document doc = new Document(root); if(_hasHead){ //创建Header节点 Element head=new Element("Header"); head.setNamespace(master_namespace); //加入根节点 root.addContent(head); } //创建Body节点 Element body=new Element("Body"); body.setNamespace(master_namespace); //加入根节点 root.addContent(body); //创建调用的方法节点 Element method=new Element(_method); body.addContent(method); Set method_attrib_set=_method_attrib.keySet(); boolean flag=false; Namespace ns=null; for(String attrib_name:method_attrib_set){ String attrib_v=_method_attrib.get(attrib_name); flag=_method_attrib_namespace.containsKey(attrib_name); if(flag){ String namespace_name=_method_attrib_namespace.get(attrib_name); flag=namespace_set.containsKey(namespace_name); if(flag){ ns=namespace_set.get(namespace_name); } else{ String namespace_v=_methodattrib_namespace.get(namespace_name); ns=Namespace.getNamespace(namespace_name, namespace_v); method.setNamespace(ns); namespace_set.put(namespace_name, ns); } Attribute attrib=new Attribute(attrib_name, attrib_v,ns); method.setAttribute(attrib); } else{ Attribute attrib=new Attribute(attrib_name, attrib_v); method.setAttribute(attrib); } } Set methods_attrib=_methods_namespace.keySet(); for(String namespace_name:methods_attrib){ flag=namespace_set.containsKey(namespace_name); if(flag){ } else{ String namespace_v=_methods_namespace.get(namespace_name); ns=Namespace.getNamespace(namespace_name, namespace_v); method.setNamespace(ns); namespace_set.put(namespace_name, ns); } } if(_service_id!=null){ Namespace nsl=Namespace.getNamespace("tns", _service_id); method.setNamespace(nsl); } //创建调用方法的参数节点 int count=_params.size(); for(int i=0;i
CXML.java
package util;import java.io.InputStream;import java.io.InputStreamReader;import org.jdom.Document;import org.jdom.Element;import org.jdom.Namespace;import org.jdom.input.SAXBuilder;import org.jdom.output.Format;import org.jdom.output.XMLOutputter;import org.jdom.xpath.XPath;/** * * @author zhaob */public class CXML { private SAXBuilder _sax=new SAXBuilder(); private Document _doc=null; private Element _root = null; private Namespace _master_namespace=null; public CXML(InputStream is,String namespace_name,String namespace_v) throws Exception { InputStreamReader isr = new InputStreamReader(is,"utf-8"); _doc=_sax.build(isr); _root = _doc.getRootElement(); _master_namespace=Namespace.getNamespace(namespace_name, namespace_v); } public String getElementTextByXPath(String xpath) throws Exception { String rtn=null; XPath xpathobj=XPath.newInstance(xpath); xpathobj.addNamespace(_master_namespace); Element obj=(Element)xpathobj.selectSingleNode(_doc); rtn=obj.getTextTrim(); return rtn; } public String toString(){ XMLOutputter o=new XMLOutputter(); //设置格式 Format format = Format.getPrettyFormat(); format.setEncoding("UTF-8"); //设置 xml文件的字符为UTF-8 format.setIndent(" "); //设置xml文件的缩进为4个空格 o.setFormat(format); String xmlstr=o.outputString(_doc); return xmlstr; }}
3、CSOAPClinetTest 这是一个JUNIT的测试类，看其中RUN方法即可。
package util;import java.util.List;import org.junit.After;import org.junit.AfterClass;import org.junit.Before;import org.junit.BeforeClass;import org.junit.Test;import util.CSOAPClient.EParamType;/** * * @author zhaob */public class CSOAPClinetTest { public CSOAPClinetTest() { } @BeforeClass public static void setUpClass() throws Exception { } @AfterClass public static void tearDownClass() throws Exception { } @Before public void setUp() { } @After public void tearDown() { } // TODO add test methods here. // The methods must be annotated with annotation @Test. For example: // // @Test // public void hello() {} @Test public void run(){ CSOAPClient soap_client=null; try{ soap_client=new CSOAPClient("http://10.20.4.21:8080/Webservices/SmsInf","SmInf","SendInstantSms","http://w.rr.com/SmsInf/SendInstantSms"); } catch(Exception e){ System.out.println("Error:"+e.getMessage()); } if(soap_client!=null){ soap_client.setHasHead(true); soap_client.setRootMasterNamespace("soapenv"); soap_client.addRootNamespace("SmInf", "http://x.rr.com/SmInf"); soap_client.addMethodAttrib("encodingStyle", "http://schemas.xmlsoap.org/soap/encoding/","soapenv",""); soap_client.setHasParamType(true); soap_client.addParams("sequenceId", 2, EParamType.Long); soap_client.addParams("accountCode", "user_id", EParamType.String); soap_client.addParams("accountPasswd", "user_password", EParamType.String); soap_client.addParams("sendPhoneNo", "1234567890", EParamType.String); soap_client.addParams("msgContent", soap_client.toUTF8("紧急通知：特别紧急，十万火急."), EParamType.String); soap_client.addParams("recvPhoneNo", "07919999999", EParamType.String); soap_client.addParams("scheduleTime", "2000-10-10T09:35:12.123", EParamType.Datetime); try{ CXML xmlobj=soap_client.call(); System.out.println("返回的XML:"); System.out.println(xmlobj.toString()); } catch(Exception e){ System.out.println("Error:"+e.getMessage()); } } }}
4、注意：运行此代码需要加入JDOM的全部lib目录下的包，否则使用XPATH时将报告错误。 如果还有什么疑问，可直接联系我。