• Java实现SOAP协议 之 HelloWorld

    Java实现SOAP协议 之 HelloWorld

    SOAP是把基于HTTP的WEB技术与XML的灵活性和可扩展性组合在了一起。

    准备：

    1. 准备一个web server。Tomcat 下载地址 http://tomcat.apache.org/

    本例使用版本 apache-tomcat-7.0.54-windows-x64.zip

    2. 写一个servlet send用来发送一个SOAP的message并添加一个附件。

    3. 写一个servlet receive用来做SOAP message的解析并返回一个response。

    4. 写一个简单的html页面触发 servlet A。

    开发工具：

    eclipse 版本 eclipse-jee-juno-SR2-win32-x86_64

    下载地址：

    http://www.eclipse.org/downloads/

    下载J2EE版本的eclipse里面包含了SOAP常用的一些jar，但这个版本的没有jaxm-api.jar，这个需要额外下载

    然后倒入。

    代码结构：



     

    web.xml代码如下：

    Xml代码  收藏代码
    1. <?xml version="1.0" encoding="ISO-8859-1"?>  
    2.   
    3. <!DOCTYPE web-app  
    4.     PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"  
    5.     "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">  
    6.   
    7. <web-app>  
    8.     <servlet>  
    9.         <servlet-name>DemoSend</servlet-name>  
    10.         <servlet-class>cody.soap.demo.DemoSend</servlet-class>  
    11.     </servlet>  
    12.   
    13.     <servlet>  
    14.         <servlet-name>DemoReceiver</servlet-name>  
    15.         <servlet-class>cody.soap.demo.DemoReceiver</servlet-class>  
    16.     </servlet>  
    17.   
    18.     <servlet-mapping>  
    19.         <servlet-name>DemoSend</servlet-name>  
    20.         <url-pattern>/DemoSend</url-pattern>  
    21.     </servlet-mapping>  
    22.   
    23.     <servlet-mapping>  
    24.         <servlet-name>DemoReceiver</servlet-name>  
    25.         <url-pattern>/DemoReceiver</url-pattern>  
    26.     </servlet-mapping>  
    27. </web-app>  

     DemoSend.java

    Java代码  收藏代码
    1. package cody.soap.demo;  
    2.   
    3. import java.io.FileOutputStream;  
    4. import java.io.IOException;  
    5. import java.io.OutputStream;  
    6. import java.net.URL;  
    7.   
    8. import javax.activation.DataHandler;  
    9. import javax.servlet.ServletException;  
    10. import javax.servlet.http.HttpServlet;  
    11. import javax.servlet.http.HttpServletRequest;  
    12. import javax.servlet.http.HttpServletResponse;  
    13. import javax.xml.soap.AttachmentPart;  
    14. import javax.xml.soap.MessageFactory;  
    15. import javax.xml.soap.SOAPBody;  
    16. import javax.xml.soap.SOAPConnection;  
    17. import javax.xml.soap.SOAPConnectionFactory;  
    18. import javax.xml.soap.SOAPEnvelope;  
    19. import javax.xml.soap.SOAPException;  
    20. import javax.xml.soap.SOAPHeader;  
    21. import javax.xml.soap.SOAPMessage;  
    22. import javax.xml.soap.SOAPPart;  
    23.   
    24. public class DemoSend extends HttpServlet {  
    25.   
    26.     /** 
    27.      *  
    28.      */  
    29.     private static final long serialVersionUID = 1L;  
    30.   
    31.     private SOAPConnection connection;  
    32.     @Override  
    33.     public void init() throws ServletException {  
    34.         super.init();  
    35.         try {  
    36.             SOAPConnectionFactory connectionFactory = SOAPConnectionFactory.newInstance();  
    37.             connection = connectionFactory.createConnection();  
    38.         } catch (UnsupportedOperationException e) {  
    39.             e.printStackTrace();  
    40.         } catch (SOAPException e) {  
    41.             e.printStackTrace();  
    42.         }  
    43.     }  
    44.   
    45.     @Override  
    46.     protected void doGet(HttpServletRequest request, HttpServletResponse response)  
    47.             throws ServletException, IOException {  
    48.         String outString ="<HTML><H1>Sending and reading the SOAP Message</H1><P>";  
    49.         try {  
    50.             MessageFactory messageFactory = MessageFactory.newInstance();  
    51.             SOAPMessage outgoingMessage = messageFactory.createMessage();  
    52.             SOAPPart soappart = outgoingMessage.getSOAPPart();  
    53.             SOAPEnvelope envelope = soappart.getEnvelope();  
    54.             SOAPHeader header = envelope.getHeader();  
    55.             SOAPBody body = envelope.getBody();  
    56.               
    57.             body.addBodyElement(envelope.createName("numberAvailable", "laptops", "http://ecodl.taobao.com/")).addTextNode("216");  
    58.               
    59.             StringBuffer serverUrl = new StringBuffer();  
    60.             serverUrl.append(request.getScheme()).append("://").append(request.getServerName());  
    61.             serverUrl.append(":").append(request.getServerPort()).append(request.getContextPath());  
    62.             String baseUrl = serverUrl.toString();  
    63.             URL url = new URL(baseUrl + "/test.html");  
    64.               
    65.             AttachmentPart attachmentpart = outgoingMessage.createAttachmentPart(new DataHandler(url));  
    66.             attachmentpart.setContentType("text/html");  
    67.             outgoingMessage.addAttachmentPart(attachmentpart);  
    68.               
    69.             URL client = new URL(baseUrl + "/DemoReceiver");  
    70.               
    71.             FileOutputStream outgoingFile = new FileOutputStream("out.msg");  
    72.             outgoingMessage.writeTo(outgoingFile);  
    73.             outgoingFile.close();  
    74.               
    75.             outString += "SOAP outgoingMessage sent (see out.msg). <BR>"+baseUrl+"<BR>";  
    76.               
    77.             SOAPMessage incomingMessage = connection.call(outgoingMessage, client);  
    78.               
    79.             if (incomingMessage != null) {  
    80.                 FileOutputStream incomingFile = new FileOutputStream("in.msg");  
    81.                 incomingMessage.writeTo(incomingFile);  
    82.                 incomingFile.close();  
    83.                 outString += "SOAP outgoingMessage received (see in.msg).</HTML>";  
    84.             }  
    85.         } catch (SOAPException e) {  
    86.             e.printStackTrace();  
    87.         }  
    88.           
    89.         try {  
    90.             OutputStream outputStream = response.getOutputStream();  
    91.             outputStream.write(outString.getBytes());  
    92.             outputStream.flush();  
    93.             outputStream.close();  
    94.         } catch (IOException e) {}  
    95.     }  
    96.   
    97.     @Override  
    98.     protected void doPost(HttpServletRequest req, HttpServletResponse resp)  
    99.             throws ServletException, IOException {  
    100.         doGet(req, resp);  
    101.     }  
    102.   
    103.       
    104. }  

     DemoReceiver.java

    Java代码  收藏代码
    1. package cody.soap.demo;  
    2.   
    3. import java.util.Iterator;  
    4.   
    5. import javax.servlet.ServletConfig;  
    6. import javax.servlet.ServletException;  
    7. import javax.xml.messaging.JAXMServlet;   
    8. import javax.xml.messaging.ReqRespListener;  
    9. import javax.xml.soap.MessageFactory;  
    10. import javax.xml.soap.SOAPBody;  
    11. import javax.xml.soap.SOAPElement;  
    12. import javax.xml.soap.SOAPEnvelope;  
    13. import javax.xml.soap.SOAPException;  
    14. import javax.xml.soap.SOAPMessage;  
    15. import javax.xml.soap.SOAPPart;  
    16.   
    17. public class DemoReceiver extends JAXMServlet implements ReqRespListener{  
    18.   
    19.     /** 
    20.      * Generated automatically 
    21.      */  
    22.     private static final long serialVersionUID = 1L;  
    23.     private static MessageFactory messageFactory = null;  
    24.     @Override  
    25.     public void init(ServletConfig servletConfig) throws ServletException {  
    26.         super.init(servletConfig);  
    27.         try {  
    28.             messageFactory = MessageFactory.newInstance();  
    29.         } catch (SOAPException e) {  
    30.             e.printStackTrace();  
    31.         }  
    32.     }  
    33.   
    34.     @Override  
    35.     public SOAPMessage onMessage(SOAPMessage msg) {  
    36.         SOAPPart soappart = msg.getSOAPPart();  
    37.         try {  
    38.             SOAPEnvelope incomingEnvelope;        
    39.             incomingEnvelope = soappart.getEnvelope();        
    40.             SOAPBody body = incomingEnvelope.getBody();  
    41.       
    42.             Iterator<?> iterator = body.getChildElements(incomingEnvelope.createName("numberAvailable", "laptops", "http://ecodl.taobao.com/"));  
    43.       
    44.             SOAPElement element;  
    45.             element = (SOAPElement) iterator.next();  
    46.       
    47.             SOAPMessage message = messageFactory.createMessage();  
    48.             SOAPEnvelope envelope = message.getSOAPPart().getEnvelope();  
    49.       
    50.             SOAPBody responsebody = envelope.getBody();  
    51.             String responseText = "Got the SOAP message indicating there are " + element.getValue() + " laptops available.";  
    52.             responsebody.addChildElement(envelope.createName("Response")).addTextNode(responseText);  
    53.       
    54.             return message;  
    55.         } catch (SOAPException e) {  
    56.             e.printStackTrace();  
    57.             return null;  
    58.         }  
    59.     }  
    60.   
    61. }  

     test.xml

    Html代码  收藏代码
    1. <?xml version="1.0" encoding="UTF-8" ?>  
    2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
    3. <HTML>  
    4.     <HEAD>  
    5.         <TITLE>SOAP and Java</TITLE>  
    6.     </HEAD>  
    7.   
    8.     <BODY>  
    9.         <H1>SOAP and Java</H1>  
    10.            Click <A HREF="DemoSend">here</a> to send the SOAP message.  
    11.     </BODY>  
    12. </HTML>  

    out.msg

    Xml代码  收藏代码
    1. ------=_Part_0_1985246804.1403343570084  
    2. Content-Type: text/xml; charset=utf-8  
    3.   
    4. <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">  
    5. <SOAP-ENV:Header/>  
    6. <SOAP-ENV:Body>  
    7. <laptops:numberAvailable xmlns:laptops="http://ecodl.taobao.com/">216</laptops:numberAvailable>  
    8. </SOAP-ENV:Body>  
    9. </SOAP-ENV:Envelope>  
    10. ------=_Part_0_1985246804.1403343570084  
    11. Content-Type: text/html  
    12.   
    13. <?xml version="1.0" encoding="UTF-8" ?>  
    14. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
    15. <HTML>  
    16.     <HEAD>  
    17.         <TITLE>SOAP and Java</TITLE>  
    18.     </HEAD>  
    19.   
    20.     <BODY>  
    21.         <H1>SOAP and Java</H1>  
    22.            Click <A HREF="DemoSend">here</a> to send the SOAP message.  
    23.     </BODY>  
    24. </HTML>  
    25.   
    26. ------=_Part_0_1985246804.1403343570084--  

     

    in.msg

    Xml代码  收藏代码
    1. <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">  
    2. <SOAP-ENV:Header/>  
    3. <SOAP-ENV:Body>  
    4. <Response>Got the SOAP message indicating there are 216 laptops available.  
    5. </Response>  
    6. </SOAP-ENV:Body>  
    7. </SOAP-ENV:Envelope>  

    原文：http://www.informit.com/library/content.aspx?b=STY_XML_21days&seqNum=228

    在Tomcat上部署的目录结构：

    webapps [This is a directory]
|____soapdemoserver [This is a directory]
     |____test.html [Our starting Web page]
     |____WEB-INF [This is a directory]
          |____web.xml [Configures Tomcat]
          |____classes [This is a directory]
               |____cody/soap/demo [This is a directory]
                    |____DemoReceiver.class [The server servlet]
                    |____DemoSend.class [The client servlet]
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  • 原文地址：https://www.cnblogs.com/timssd/p/4753737.html
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