帮我编写一个rest转soap的程序

好的，我可以为您提供一些思路和参考代码，但是需要您提供更具体的需求和条件。

以下是一个示例程序，使用了Java语言和Apache CXF框架，将REST请求转换为SOAP请求：

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.xml.namespace.QName;
import javax.xml.soap.SOAPBody;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPException;
import javax.xml.soap.SOAPFactory;
import javax.xml.soap.SOAPHeader;
import javax.xml.soap.SOAPMessage;

import org.apache.cxf.binding.soap.Soap11;
import org.apache.cxf.binding.soap.SoapBinding;
import org.apache.cxf.binding.soap.SoapMessage;
import org.apache.cxf.jaxrs.JAXRSServiceFactoryBean;
import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;
import org.apache.cxf.jaxrs.lifecycle.SingletonResourceProvider;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import org.apache.cxf.service.Service;
import org.apache.cxf.service.model.BindingInfo;
import org.apache.cxf.service.model.BindingOperationInfo;
import org.apache.cxf.service.model.EndpointInfo;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.service.model.OperationInfo;
import org.apache.cxf.transport.http.HTTPTransportFactory;

@Path("/")
public class RestToSoapConverter {

    private static final String SOAP_NAMESPACE_URI = "http://schemas.xmlsoap.org/soap/envelope/";

    @GET
    @Path("{name}")
    @Produces("text/xml")
    public String convertRestToSoap(@PathParam("name") String name) throws SOAPException {
        // create a SOAP message
        SOAPFactory soapFactory = SOAPFactory.newInstance();
        SOAPMessage soapMessage = soapFactory.createMessage();
        SOAPEnvelope soapEnvelope = soapMessage.getSOAPPart().getEnvelope();
        SOAPHeader soapHeader = soapEnvelope.getHeader();
        SOAPBody soapBody = soapEnvelope.getBody();

        // set the SOAP action header
        soapHeader.setAction("urn:hello");

        // set the SOAP body content
        QName qname = new QName("http://example.com/", "hello", "ns");
        MessagePartInfo partInfo = new MessagePartInfo(qname);
        OperationInfo operationInfo = new OperationInfo();
        BindingOperationInfo bindingOperationInfo = new BindingOperationInfo(null, operationInfo);
        bindingOperationInfo.setOperationInfo(operationInfo);
        bindingOperationInfo.setBinding(new SoapBinding(null, Soap11.getInstance()));
        operationInfo.setName(qname);
        operationInfo.setInput("Hello", partInfo);
        EndpointInfo endpointInfo = new EndpointInfo(null, "http://localhost:8080/hello");
        BindingInfo bindingInfo = new BindingInfo(endpointInfo, "HelloBinding");
        bindingInfo.setTransportFactory(new HTTPTransportFactory());
        MessagePartInfo messagePartInfo = new MessagePartInfo(qname);
        operationInfo.setInput("hello", messagePartInfo);
        Service service = new Service();
        service.put(QName.class, qname);
        service.put(BindingInfo.class, bindingInfo);
        service.setInvoker(new HelloInvoker(soapBody));
        EndpointInfo ei = new EndpointInfo(service.getServiceInfos().get(0), "");
        ei.setAddress("http://localhost:8080/hello");
        bindingOperationInfo.setEndpoint(ei);
        SoapMessage soapMsg = new SoapMessage(bindingOperationInfo);
        soapMsg.setContent(Object.class, soapBody);
        soapMsg.setVersion(Soap11.getInstance());
        soapMsg.setExchange(new HelloExchange());

        // create a JAX-WS client
        JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
        factory.setServiceClass(Hello.class);
        factory.setAddress("http://localhost:8080/hello");
        Hello client = (Hello) factory.create();

        // invoke the JAX-WS client and get the SOAP response
        SOAPMessage soapResponse = client.sayHello(name);

        // convert the SOAP response to a string and return it
        return soapMessageToString(soapResponse);
    }

    private String soapMessageToString(SOAPMessage soapMessage) throws SOAPException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        soapMessage.writeTo(out);
        return new String(out.toByteArray());
    }

    public static void main(String[] args) {
        // create a JAX-RS server
        JAXRSServerFactoryBean factory = new JAXRSServerFactoryBean();
        factory.setResourceClasses(RestToSoapConverter.class);
        factory.setResourceProvider(RestToSoapConverter.class, new SingletonResourceProvider(new RestToSoapConverter()));
        factory.setAddress("http://localhost:8080/");
        factory.create();

        // create a JAX-WS server
        JAXRSServiceFactoryBean serviceFactory = new JAXRSServiceFactoryBean();
        serviceFactory.setResourceClasses(Hello.class);
        serviceFactory.setResourceProvider(Hello.class, new SingletonResourceProvider(new HelloImpl()));
        serviceFactory.setAddress("http://localhost:8080/hello");
        serviceFactory.create();

        // start the servers
        System.out.println("Server ready...");
        System.in.read();
        System.out.println("Server shutting down...");
        System.exit(0);
    }

    private static class HelloExchange extends org.apache.cxf.message.ExchangeImpl {
    }

    private static class HelloInvoker extends org.apache.cxf.service.invoker.AbstractInvoker {
        private final SOAPBody soapBody;

        public HelloInvoker(SOAPBody soapBody) {
            super(null);
            this.soapBody = soapBody;
        }

        @Override
        public Object invoke(org.apache.cxf.message.Message message, Object... params) throws Exception {
            SOAPMessage soapMessage = message.getContent(SOAPMessage.class);
            soapBody.addDocument(soapMessage.getSOAPBody().extractContentAsDocument());
            return null;
        }
    }

    public static interface Hello {
        public SOAPMessage sayHello(String name);
    }

    public static class HelloImpl implements Hello {
        @Override
        public SOAPMessage sayHello(String name) {
            try {
                SOAPFactory soapFactory = SOAPFactory.newInstance();
                SOAPMessage soapMessage = soapFactory.createMessage();
                SOAPEnvelope soapEnvelope = soapMessage.getSOAPPart().getEnvelope();
                SOAPBody soapBody = soapEnvelope.getBody();
                QName qname = new QName("http://example.com/", "helloResponse", "ns");
                soapBody.addBodyElement(qname).setTextContent("Hello, " + name + "!");
                return soapMessage;
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    }

}

以上程序将REST请求转换为SOAP请求，并将SOAP响应转换为字符串返回。您可以根据您的实际需求进行修改和扩展。