WebService的简单实例
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通常情况下，我们创建的WebService服务是以aar包的形式发布到服务器上的，为了简化我们的发布过程，写一个ant脚本是理所当然的了，当然你也可以连WebService的客户端测试脚本一起写好，下面就是我做的
xml 代码
- <project basedir="." default="generate.service">
- <property environment="env"/>
- <property name="AXIS2_HOME" value="${env.AXIS2_HOME}"/>
- <property name="build.dir" value="build"/>
- <path id="axis2.classpath">
- <fileset dir="${AXIS2_HOME}/lib">
- <include name="*.jar"/>
- fileset>
- path>
- <path id="client.class.path">
- <fileset dir="${AXIS2_HOME}/lib">
- <include name="*.jar" />
- fileset>
- <pathelement location="${build.dir}/classes" />
- path>
- <target name="compile">
- <mkdir dir="${build.dir}"/>
- <mkdir dir="${build.dir}/classes"/>
- <!---->
- <javac debug="on"
- fork="true"
- destdir="${build.dir}/classes"
- srcdir="${basedir}/src"
- classpathref="axis2.classpath">
- javac>
- target>
- <target name="generate.service" depends="compile">
- <!---->
- <copy toDir="${build.dir}/classes" failonerror="false">
- <fileset dir="${basedir}/resources">
- <include name="**/*.xml"/>
- <include name="**/*.wsdl"/>
- fileset>
- copy>
- <jar destfile="${build.dir}/HelloWorldService.aar">
- <fileset excludes="**/Test.class" dir="${build.dir}/classes"/>
- jar>
- target>
- <target name="run.client" depends="compile">
- <java classname="samples.helloworld.client.HelloWorldClient">
- <classpath refid="client.class.path" />
- java>
- target>
- <target name="clean">
- <delete dir="${build.dir}"/>
- target>
- project>
WebService的服务提供类如下：
java 代码 - package samples.helloworld.service.axiom;
- import java.util.ArrayList;
- import java.util.HashMap;
- import java.util.Iterator;
- import org.apache.axiom.om.OMElement;
- import org.apache.axiom.om.OMAbstractFactory;
- import org.apache.axiom.om.OMNamespace;
- import org.apache.axiom.om.OMFactory;
- import javax.xml.stream.XMLStreamException;
- /**
- *
- *
- Description:
-
-
- * @author Danlley Wei
- * @version 1.0
- * @date 2007-4-5
- */
- public class HelloWorldService{
- private HashMapmessages=new HashMap();//存放用户信息
- public static final String URL="http://axiom.service.helloworld.samples/xsd";
- public static final String NS="ns";
- OMFactory fac=OMAbstractFactory.getOMFactory();//初始化工厂
- OMNamespace omNs=fac.createOMNamespace(URL,NS);//生成命名空间
- /**
- * 说明：客户端请求授权信息时调用的接口
- * @param element 用来接收客户端的XML信息
- * @return
- * @throws XMLStreamException
- */
- public OMElement getHelloWorldMs(OMElement element)throws XMLStreamException{
- try{
- element.build();
- element.detach();
- ArrayList dataLi=new ArrayList();
- String symbol=null;
- String userPWD=null;
- String transactionKey=null;
- for(Iterator it=element.getChildElements();it.hasNext();){
- OMElement temp=(OMElement)it.next();
- if(temp.getLocalName().equalsIgnoreCase("symbol")){
- symbol=temp.getText();
- }
- if(temp.getLocalName().equalsIgnoreCase("userPWD")){
- userPWD=temp.getText();
- }
- if(temp.getLocalName().equalsIgnoreCase("transactionKey")){
- transactionKey=temp.getText();
- }
- if(null!=userPWD)dataLi.add(userPWD);
- if(null!=transactionKey)dataLi.add(transactionKey);
- if(null!=symbol)dataLi.add(symbol);
- }
- // System.out.println("********"+symbol+" | "+userPWD+" | "+transactionKey+" | "+"********");
- element=responseMessage("getHelloWorldMsResponse",symbol,userPWD,transactionKey);//产生应答信息
- return element;
- }catch(Exception e){
- e.printStackTrace();
- throw new XMLStreamException();
- }
- }
-
- /**
- * 说明：此方法无返回值，用于初始化用户帐号信息
- *
- * @param element
- * @throws XMLStreamException
- */
- public void setHelloWorldMs(OMElement element)throws XMLStreamException{
- try{
- element.build();
- element.detach();
- String symbol=null;
- String userPWD=null;
- String transactionKey=null;
- ArrayList dataLi=new ArrayList();
- for(Iterator iter=element.getChildElements();iter.hasNext();){
- OMElement tmp=(OMElement)iter.next();
- if(tmp.getLocalName().equalsIgnoreCase("symbol")){
- symbol=tmp.getText();
- }
- if(tmp.getLocalName().equalsIgnoreCase("userPWD")){
- userPWD=tmp.getText();
- }
- if(tmp.getLocalName().equalsIgnoreCase("transactionKey")){
- transactionKey=tmp.getText();
- }
- if(null!=userPWD)dataLi.add(userPWD);
- if(null!=transactionKey)dataLi.add(transactionKey);
- if(null!=symbol)dataLi.add(symbol);
- }
- if(!messages.containsKey(symbol)){
- messages.put(symbol,dataLi);
- System.out.println("******** add user "+symbol+" ********");
- }else{
- System.out.println(" The userInfo already exist here ------->"+symbol);
- }
- }catch(Exception e){
- e.printStackTrace();
- throw new XMLStreamException(e);
- }
- }
-
- /**
- * 说明：用于判断是否下载成功，消息产生方式与方法：
- * getHelloWorldMs(OMElement element)throws XMLStreamException相同。
- * @param element
- * @return
- * @throws XMLStreamException
- */
- public OMElement getDownloadConfirm(OMElement element)throws XMLStreamException{
- try{
- element.build();
- element.detach();
- String symbol=null;
- String userPWD=null;
- String transactionKey=null;
- OMElement myel=element.getFirstElement();
- symbol=myel.getText();
- OMElement myel1=(OMElement)myel.getNextOMSibling();
- userPWD=myel1.getText();
- OMElement myel2=(OMElement)myel1.getNextOMSibling();
- transactionKey=myel2.getText();
- element=responseMessage("getDownloadConfirmResponse",symbol,userPWD,transactionKey);//产生应答信息
- System.out.println("**********************************************************");
- System.out.println(" DOWNLOAD INFORMATION ");
- System.out.println(" the message have been sended to the Client !");
- System.out.println("**********************************************************");
- return element;
- }catch(Exception e){
- e.printStackTrace();
- throw new XMLStreamException(e);
- }
- }
-
- /**
- * 说明：产生客户端请求后的应答信息，其信息为一个OMElement对象OMElement element ，其结果送给上层调用者
- * getHelloWorldMs(OMElement element)throws XMLStreamException;
-
- * getDownloadConfirm(OMElement element)throws XMLStreamException
- * @param eleName
- * @param userName
- * @param userPWD
- * @param transactionKey
- * @return
- */
- private OMElement responseMessage(String eleName,String userName,String userPWD,String transactionKey){
- OMElement element=fac.createOMElement(eleName,omNs);
- if(cheAuthrized(userName,userPWD)){
- element=createRespElement(element,"0","Success");//产生授权成功的应答信息
- }else{
- //生成一个1~11以内的随机数，如果随机数为 0 ，则强制指定为 10 ，防止与正确的应答 code重复
- int rand=(int)(Math.random()*10);
- if(rand+Math.random()>9)rand=11;
- if(rand==0)rand=10;
- System.out.println("There are some errors occured here with the random number : "+rand);
- element=getErrorElement(rand,element);
- }
- return element;
- }
-
- /**
- * 说明：根据不同的错误码，获取错误信息结点，并把结点信息送到上层调用者
- * responseMessage(String eleName,String userName,String userPWD,String transactionKey);
- * @param errorCode
- * @param element
- * @return
- */
- private OMElement getErrorElement(int errorCode,OMElement element){
- switch(errorCode){
- case 1:
- element=createRespElement(element,"REQUEST_ERROR","Error on the request (parameter format)");
- break;
- case 2:
- element=createRespElement(element,"CONTEXT_ERROR","Context errors (in this case, can be user disabled)");
- break;
- case 3:
- element=createRespElement(element,"SECURITY_ERROR","Wrong Credentials or Permission Denied on this API");
- break;
- case 4:
- element=createRespElement(element,"SECURITY_ERROR","Invalid credentials");
- break;
- case 5:
- element=createRespElement(element,"REQUEST_ERROR","transactionKey is required");
- break;
- case 6:
- element=createRespElement(element,"REQUEST_ERROR","Invalid transactionKey format");
- break;
- case 7:
- element=createRespElement(element,"REQUEST_ERROR","Invalid transactionKey");
- break;
- case 8:
- element=createRespElement(element,"CONTEXT_ERROR","transactionKey already confirmed");
- break;
- case 9:
- element=createRespElement(element,"CONTEXT_ERROR","transactionKey not found");
- break;
- case 10:
- element=createRespElement(element,"CONTEXT_ERROR","Not enough credits ");
- break;
- default:
- element=createRespElement(element,"APPLICATION_ERROR","Undetected error on Web Service");
- break;
- }
- return element;
- }
-
- /**
- * 说明：当服务器收到请求后做出应答响应，并将应答信息返回给客户端，该应答信息是一个xml结点，如下：
- *
- * the response code
- * detail information
- *
- * 此方法仅仅用于生成如上结构的结点，并将处理后的结果转交给上层调用者
- * responseMessage(String eleName,String userName,String userPWD,String transactionKey);
- * 来处理
- * @param eleName
- * @param arg0
- * @param arg1
- * @return
- */
- private OMElement createRespElement(OMElement element,String arg0,String arg1){
- OMElement value1 = fac.createOMElement("Code", omNs);
- value1.addChild(fac.createOMText(value1, arg0));
- element.addChild(value1);
-
- OMElement value2 = fac.createOMElement("Description", omNs);
- value2.addChild(fac.createOMText(value2, arg1));
- element.addChild(value2);
-
- return element;
- }
-
- /**
- * 说明：判断当前用户的账户信息是否正确，只有在用户名和密码都正确的情况下才返回true,并把结点信息送到上层调用者
- * responseMessage(String eleName,String userName,String userPWD,String transactionKey);
- * @param userName 用户名
- * @param userPWD 密码
- * @return
- */
- private boolean cheAuthrized(String userName,String userPWD){
- // System.out.println("********"+userName+" | "+userPWD+"********");
- if(messages.containsKey(userName)&&null!=userPWD){
- ArrayList myLi=(ArrayList)messages.get(userName);
- String userPWD_chk=(String)myLi.get(1);
- if(userPWD.equals(userPWD_chk))return true;
- }
- return false;
- }
- }
-
执行如下命令：java2wsdl -cp . -cn samples.helloworld.service.axiom.HelloWorldService -of HelloWorldService.wsdl
打开生成的wsdl文件进行修改，删除文件中的下面代码：
<xs:element name="getHelloWorldMsFault"><soap:body use="literal" namespace="&lt;a href=" axiom.service.helloworld.samples=" _fcksavedurl="><soap:body use="literal" namespace="&lt;a href=" axiom.service.helloworld.samples=" _fcksavedurl="><soap12:body use="literal" namespace="&lt;a href=" axiom.service.helloworld.samples=" _fcksavedurl="><soap12:body use="literal" namespace="&lt;a href=" axiom.service.helloworld.samples=" _fcksavedurl="><soap12:body use="literal" namespace="&lt;a href=" axiom.service.helloworld.samples=" _fcksavedurl=">xml 代码
- <xs:element name="getDownloadConfirmFault">
- <xs:complexType>
- <xs:sequence>
- <xs:element name="getDownloadConfirmFault" type="xs:anyType" />
- xs:sequence>
- xs:complexType>
- xs:element>
- <xs:element
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