我正在开发一个向第三方Web服务发送soap请求的项目,而且我是java开发的新手。到目前为止,我有一个基本代码,用于创建soap消息,发送它然后接收响应;该消息包含一个xml文件作为base64字符串文件。
我正在使用的代码正在运行,但我需要确保soap请求能够在更短的时间内成功传递消息,(我有48小时保证交付)所以如果有某种如果网络故障或Web服务不可用,我的代码会产生错误并停止程序的其余部分。
// Create SOAP Connection
SOAPConnectionFactory soapConnectionFactory = SOAPConnectionFactory.newInstance();
SOAPConnection soapConnection = soapConnectionFactory.createConnection();
// Send SOAP Message to SOAP Server
String url = "https://facturaelectronica.dian.gov.co/habilitacion/B2BIntegrationEngine/FacturaElectronica";
SOAPMessage soapResponse = soapConnection.call(createSOAPRequest(), url);
// print SOAP Response
System.out.print("Response SOAP Message:");
soapResponse.writeTo(System.out);
soapConnection.close();
我已经读过可以将肥皂请求发送到jms qeue,这样我会确保整个程序在网络出现故障时能够正确执行,但是,据我所知,我需要转换肥皂消息给jms消息,我还没有能够解决这个问题。我发现,你可以使用它来实现转换:
//Convert SOAP to JMS message.
Message m = MessageTransformer.SOAPMessageIntoJMSMessage (soapMessage,session);
基于此文档: https://docs.oracle.com/cd/E19340-01/820-6767/aeqgk/index.html
所以我创建了一个类来调用ToJms来进行转换:
import javax.xml.soap.SOAPMessage;
import javax.xml.soap.SOAPPart;
import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.ActiveMQConnectionFactory;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPElement;
import javax.xml.soap.MessageFactory;
import javax.xml.soap.AttachmentPart;
import javax.xml.soap.Name;
import java.net.URL;
import javax.activation.DataHandler;
import com.sun.messaging.Queue;
import com.sun.messaging.xml.MessageTransformer;
import javax.jms.ConnectionFactory;
import javax.jms.Connection;
import javax.jms.JMSException;
import javax.jms.Session;
import javax.jms.Message;
import javax.jms.Session;
import javax.jms.Topic;
import javax.jms.MessageProducer;
/**
* This example shows how to use the MessageTransformer utility to send SOAP
* messages with JMS.
* <p>
* SOAP messages are constructed with javax.xml.soap API. The messages
* are converted with MessageTransformer utility to convert SOAP to JMS
* message types. The JMS messages are then published to the JMS topics.
*/
public class ToJms {
ConnectionFactory connectionFactory = null;
Connection connection = null;
Session session = null;
Topic topic = null;
Queue queue = null;
MessageProducer msgProducer = null;
private static String url = ActiveMQConnection.DEFAULT_BROKER_URL;
/**
* default constructor.
*/
public ToJms(String QueueName) {
init(QueueName);
}
/**
* Initialize JMS Connection/Session/Topic and Producer.
*/
public void init(String topicName) {
try {
// connectionFactory = new com.sun.messaging.ConnectionFactory();
// connection = connectionFactory.createConnection(localhost:6161);
ConnectionFactory connectionFactory = new ActiveMQConnectionFactory(url);
Connection connection = connectionFactory.createConnection();
session = connection.createSession(true, Session.AUTO_ACKNOWLEDGE);
topic = session.createTopic(topicName);
msgProducer = session.createProducer(topic);
} catch (JMSException jmse) {
jmse.printStackTrace();
}
}
/**
* Send SOAP message with JMS API.
*/
public void send (SOAPMessage soapMessage) throws Exception {
/**
* Convert SOAP to JMS message.
*/
Message message = MessageTransformer.SOAPMessageIntoJMSMessage( soapMessage, session );
/**
* publish JMS message.
*/
msgProducer.send( message );
}
/**
* close JMS connection.
*/
public void close() throws JMSException {
connection.close();
}
/**
* The main program to send SOAP messages with JMS.
*/
public static void main (String[] args) {
String topicName = "TestTopic";
if (args.length > 0) {
topicName = args[0];
}
try {
ToJms ssm = new ToJms(topicName);
// ssm.send();
ssm.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
然后在我的主要课程上实现它:
ToJms ssm=new ToJms("SoapDian");
ssm.send(createSOAPRequest());
ssm.close();
我收到了下一个错误:
线程中的异常&#34; main&#34; java.lang.ClassFormatError:缺席代码 方法中的属性在类文件中不是本机的或抽象的 javax / xml / messaging / JAXMException at java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(ClassLoader.java:763)at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 在java.net.URLClassLoader.defineClass(URLClassLoader.java:467)at java.net.URLClassLoader.access $ 100(URLClassLoader.java:73)at java.net.URLClassLoader $ 1.run(URLClassLoader.java:368)at java.net.URLClassLoader $ 1.run(URLClassLoader.java:362)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:361)at java.lang.ClassLoader.loadClass(ClassLoader.java:424)at sun.misc.Launcher $ AppClassLoader.loadClass(Launcher.java:338)at at java.lang.ClassLoader.loadClass(ClassLoader.java:357)at 在xml.SoapTest.main的xml.ToJms.send(ToJms.java:111)(SoapTest.java:42) 在xml.xml.main(xml.java:317)at com.summan.datavarprinter.Main.main(Main.java:181)
我确实有很多麻烦试图找到oracle指定的库,因为在goolge上有很多不同的结果,我必须尝试很多,直到导入工作。
所以我想知道这里是否有人知道如何使这项工作或有更好的解决方案将soap消息发送到activemq队列。
感谢。
答案 0 :(得分:0)
我无法找到一种方法来完成这项工作,所以我最终做的是将soap消息转换为字符串,将其发送到activemq然后在消耗时执行逆过程。