java 怎么发送soap

在 Java 中发送 SOAP 请求可以使用 Apache Axis2 框架。以下是一个简单的示例：

1. 首先，确保你已经安装了 Apache Axis2 框架。

2. 创建一个 Java 项目，并将以下代码添加到 pom.xml 文件中：

<dependencies>
    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2</artifactId>
        <version>1.7.9</version>
    </dependency>
</dependencies>

3. 创建一个 Java 类，并添加以下代码：

import org.apache.axis2.AxisFault;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.client.ServiceClient;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.impl.builder.StAXOMBuilder;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;

public class SoapClient {

    private static final String SOAP_ENDPOINT = "http://example.com/soap";
    private static final String SOAP_ACTION = "http://example.com/soap/Action";
    private static final String SOAP_REQUEST = "<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:ns=\"http://example.com/soap/\">"
            + "<soapenv:Header/>"
            + "<soapenv:Body>"
            + "<ns:Request>"
            + "<ns:Param1>value1</ns:Param1>"
            + "<ns:Param2>value2</ns:Param2>"
            + "</ns:Request>"
            + "</soapenv:Body>"
            + "</soapenv:Envelope>";

    public static void main(String[] args) throws AxisFault, XMLStreamException, IOException {
        ServiceClient serviceClient = new ServiceClient();
        Options options = new Options();
        options.setTo(new EndpointReference(SOAP_ENDPOINT));
        options.setAction(SOAP_ACTION);
        serviceClient.setOptions(options);
        OMElement requestOM = getOMElementFromString(SOAP_REQUEST);
        OMElement responseOM = serviceClient.sendReceive(requestOM);
        String response = responseOM.getFirstElement().getText();
        System.out.println(response);
    }

    private static OMElement getOMElementFromString(String xmlString) throws XMLStreamException, IOException {
        XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(new ByteArrayInputStream(xmlString.getBytes()));
        StAXOMBuilder builder = new StAXOMBuilder(reader);
        return builder.getDocumentElement();
    }

}

4. 替换 `SOAP_ENDPOINT`、`SOAP_ACTION` 和 `SOAP_REQUEST` 的值为你自己的 SOAP Web 服务地址、SOAP Action 和请求内容。

5. 运行该 Java 类，即可发送 SOAP 请求，并得到响应结果。

以上就是一个简单的 Java 发送 SOAP 请求的示例。你可以根据自己的需求对代码进行修改和扩展。