Java实现SOAP协议之 HelloWorld

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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

<?xml version="1.0" encoding="ISO-8859-1"?>



<!DOCTYPE web-app

    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"

    "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">



<web-app>

    <servlet>

        <servlet-name>DemoSend</servlet-name>

        <servlet-class>cody.soap.demo.DemoSend</servlet-class>

    </servlet>



    <servlet>

        <servlet-name>DemoReceiver</servlet-name>

        <servlet-class>cody.soap.demo.DemoReceiver</servlet-class>

    </servlet>



    <servlet-mapping>

        <servlet-name>DemoSend</servlet-name>

        <url-pattern>/DemoSend</url-pattern>

    </servlet-mapping>



    <servlet-mapping>

        <servlet-name>DemoReceiver</servlet-name>

        <url-pattern>/DemoReceiver</url-pattern>

    </servlet-mapping>

</web-app>

DemoSend.java

Java代码

package cody.soap.demo;



import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import java.net.URL;



import javax.activation.DataHandler;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.xml.soap.AttachmentPart;

import javax.xml.soap.MessageFactory;

import javax.xml.soap.SOAPBody;

import javax.xml.soap.SOAPConnection;

import javax.xml.soap.SOAPConnectionFactory;

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;



public class DemoSend extends HttpServlet {



    /**

     *

     */

    private static final long serialVersionUID = 1L;



    private SOAPConnection connection;

    @Override

    public void init() throws ServletException {

        super.init();

        try {

            SOAPConnectionFactory connectionFactory = SOAPConnectionFactory.newInstance();

            connection = connectionFactory.createConnection();

        } catch (UnsupportedOperationException e) {

            e.printStackTrace();

        } catch (SOAPException e) {

            e.printStackTrace();

        }

    }



    @Override

    protected void doGet(HttpServletRequest request, HttpServletResponse response)

            throws ServletException, IOException {

        String outString ="<HTML><H1>Sending and reading the SOAP Message</H1><P>";

        try {

            MessageFactory messageFactory = MessageFactory.newInstance();

            SOAPMessage outgoingMessage = messageFactory.createMessage();

            SOAPPart soappart = outgoingMessage.getSOAPPart();

            SOAPEnvelope envelope = soappart.getEnvelope();

            SOAPHeader header = envelope.getHeader();

            SOAPBody body = envelope.getBody();



            body.addBodyElement(envelope.createName("numberAvailable", "laptops", "http://ecodl.taobao.com/")).addTextNode("216");



            StringBuffer serverUrl = new StringBuffer();

            serverUrl.append(request.getScheme()).append("://").append(request.getServerName());

            serverUrl.append(":").append(request.getServerPort()).append(request.getContextPath());

            String baseUrl = serverUrl.toString();

            URL url = new URL(baseUrl + "/test.html");



            AttachmentPart attachmentpart = outgoingMessage.createAttachmentPart(new DataHandler(url));

            attachmentpart.setContentType("text/html");

            outgoingMessage.addAttachmentPart(attachmentpart);



            URL client = new URL(baseUrl + "/DemoReceiver");



            FileOutputStream outgoingFile = new FileOutputStream("out.msg");

            outgoingMessage.writeTo(outgoingFile);

            outgoingFile.close();



            outString += "SOAP outgoingMessage sent (see out.msg). <BR>"+baseUrl+"<BR>";



            SOAPMessage incomingMessage = connection.call(outgoingMessage, client);



            if (incomingMessage != null) {

                FileOutputStream incomingFile = new FileOutputStream("in.msg");

                incomingMessage.writeTo(incomingFile);

                incomingFile.close();

                outString += "SOAP outgoingMessage received (see in.msg).</HTML>";

            }

        } catch (SOAPException e) {

            e.printStackTrace();

        }



        try {

            OutputStream outputStream = response.getOutputStream();

            outputStream.write(outString.getBytes());

            outputStream.flush();

            outputStream.close();

        } catch (IOException e) {}

    }



    @Override

    protected void doPost(HttpServletRequest req, HttpServletResponse resp)

            throws ServletException, IOException {

        doGet(req, resp);

    }





}

DemoReceiver.java

Java代码

package cody.soap.demo;



import java.util.Iterator;



import javax.servlet.ServletConfig;

import javax.servlet.ServletException;

import javax.xml.messaging.JAXMServlet;

import javax.xml.messaging.ReqRespListener;

import javax.xml.soap.MessageFactory;

import javax.xml.soap.SOAPBody;

import javax.xml.soap.SOAPElement;

import javax.xml.soap.SOAPEnvelope;

import javax.xml.soap.SOAPException;

import javax.xml.soap.SOAPMessage;

import javax.xml.soap.SOAPPart;



public class DemoReceiver extends JAXMServlet implements ReqRespListener{



    /**

     * Generated automatically

     */

    private static final long serialVersionUID = 1L;

    private static MessageFactory messageFactory = null;

    @Override

    public void init(ServletConfig servletConfig) throws ServletException {

        super.init(servletConfig);

        try {

            messageFactory = MessageFactory.newInstance();

        } catch (SOAPException e) {

            e.printStackTrace();

        }

    }



    @Override

    public SOAPMessage onMessage(SOAPMessage msg) {

        SOAPPart soappart = msg.getSOAPPart();

        try {

            SOAPEnvelope incomingEnvelope;

            incomingEnvelope = soappart.getEnvelope();

            SOAPBody body = incomingEnvelope.getBody();



            Iterator<?> iterator = body.getChildElements(incomingEnvelope.createName("numberAvailable", "laptops", "http://ecodl.taobao.com/"));



            SOAPElement element;

            element = (SOAPElement) iterator.next();



            SOAPMessage message = messageFactory.createMessage();

            SOAPEnvelope envelope = message.getSOAPPart().getEnvelope();



            SOAPBody responsebody = envelope.getBody();

            String responseText = "Got the SOAP message indicating there are " + element.getValue() + " laptops available.";

            responsebody.addChildElement(envelope.createName("Response")).addTextNode(responseText);



            return message;

        } catch (SOAPException e) {

            e.printStackTrace();

            return null;

        }

    }



}

test.xml

Html代码

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<HTML>

    <HEAD>

        <TITLE>SOAP and Java</TITLE>

    </HEAD>



    <BODY>

        <H1>SOAP and Java</H1>

           Click <A HREF="DemoSend">here</a> to send the SOAP message.

    </BODY>

</HTML>

out.msg

Xml代码

------=_Part_0_1985246804.1403343570084

Content-Type: text/xml; charset=utf-8



<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">

<SOAP-ENV:Header/>

<SOAP-ENV:Body>

<laptops:numberAvailable xmlns:laptops="http://ecodl.taobao.com/">216</laptops:numberAvailable>

</SOAP-ENV:Body>

</SOAP-ENV:Envelope>

------=_Part_0_1985246804.1403343570084

Content-Type: text/html



<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<HTML>

    <HEAD>

        <TITLE>SOAP and Java</TITLE>

    </HEAD>



    <BODY>

        <H1>SOAP and Java</H1>

           Click <A HREF="DemoSend">here</a> to send the SOAP message.

    </BODY>

</HTML>



------=_Part_0_1985246804.1403343570084--

in.msg

Xml代码

<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">

<SOAP-ENV:Header/>

<SOAP-ENV:Body>

<Response>Got the SOAP message indicating there are 216 laptops available.

</Response>

</SOAP-ENV:Body>

</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

Java实现SOAP协议 之 HelloWorld

Java实现SOAP协议 之 HelloWorld

Java实现SOAP协议之 HelloWorld

Java实现SOAP协议之 HelloWorld