如何在JAVA中发送SOAP请求

import javax.xml.soap.*;

public class SOAPClient {
    public static void main(String[] args) {
        try {
            // 创建SOAP连接
            SOAPConnectionFactory soapConnectionFactory = SOAPConnectionFactory.newInstance();
            SOAPConnection soapConnection = soapConnectionFactory.createConnection();

            // 创建SOAP消息
            MessageFactory messageFactory = MessageFactory.newInstance();
            SOAPMessage soapMessage = messageFactory.createMessage();

            // 设置SOAP消息的内容
            SOAPPart soapPart = soapMessage.getSOAPPart();
            SOAPEnvelope envelope = soapPart.getEnvelope();
            SOAPBody body = envelope.getBody();
            body.addBodyElement(envelope.createName("HelloWorld"));

            // 设置SOAP消息的目标地址
            String endpointUrl = "http://example.com/soap-endpoint";
            SOAPMessage soapResponse = soapConnection.call(soapMessage, endpointUrl);

            // 获取响应
            SOAPBody responseBody = soapResponse.getSOAPBody();
            System.out.println(responseBody.getTextContent());

            // 关闭连接
            soapConnection.close();
        } catch (Exception e) {
            System.err.println("Error occurred while sending SOAP request: " + e.getMessage());
        }
    }
}