SOAP 和 REST 如何与 XMLJSON 响应配合使用

SOAP（简单对象访问协议）和REST（表征状态转移）是两种常见的网络通信协议，用于实现不同系统之间的通信。这两种协议都可以与XML或JSON格式的响应配合使用，以便在不同系统之间传输和解析数据。

xml
  
    
      success
      
        John Doe
        30
      
    
  

json
{
  "status": "success",
  "data": {
    "name": "John Doe",
    "age": 30
  }
}

java
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();
      // 创建SOAP部分
      SOAPPart soapPart = soapMessage.getSOAPPart();
      // 创建SOAP信封和信封头
      SOAPEnvelope envelope = soapPart.getEnvelope();
      SOAPHeader header = envelope.getHeader();
      // 创建SOAP主体
      SOAPBody body = envelope.getBody();
      SOAPElement responseElement = body.addChildElement("response");
      // 添加响应数据
      SOAPElement statusElement = responseElement.addChildElement("status");
      statusElement.addTextNode("success");
      SOAPElement dataElement = responseElement.addChildElement("data");
      SOAPElement nameElement = dataElement.addChildElement("name");
      nameElement.addTextNode("John Doe");
      SOAPElement ageElement = dataElement.addChildElement("age");
      ageElement.addTextNode("30");
      // 发送SOAP消息并获取响应
      String endpointUrl = "http://example.com/soap-endpoint";
      SOAPMessage soapResponse = soapConnection.call(soapMessage, endpointUrl);
      // 解析SOAP响应
      SOAPBody responseBody = soapResponse.getSOAPBody();
      String status = responseBody.getElementsByTagName("status").item(0).getTextContent();
      String name = responseBody.getElementsByTagName("name").item(0).getTextContent();
      String age = responseBody.getElementsByTagName("age").item(0).getTextContent();
      // 打印响应数据
      System.out.println("Status: " + status);
      System.out.println("Name: " + name);
      System.out.println("Age: " + age);
      // 关闭SOAP连接
      soapConnection.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

java
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONObject;
public class RESTClient {
  public static void main(String[] args) {
    try {
      // 创建URL对象
      String urlString = "http://example.com/rest-endpoint";
      URL url = new URL(urlString);
      // 创建HTTP连接
      HttpURLConnection connection = (HttpURLConnection) url.openConnection();
      connection.setRequestMethod("GET");
      // 获取响应
      int responseCode = connection.getResponseCode();
      if (responseCode == HttpURLConnection.HTTP_OK) {
        BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();
        while ((inputLine = in.readLine()) != null) {
          response.append(inputLine);
        }
        in.close();
        // 解析JSON响应
        JSONObject jsonResponse = new JSONObject(response.toString());
        String status = jsonResponse.getString("status");
        JSONObject data = jsonResponse.getJSONObject("data");
        String name = data.getString("name");
        int age = data.getInt("age");
        // 打印响应数据
        System.out.println("Status: " + status);
        System.out.println("Name: " + name);
        System.out.println("Age: " + age);
      } else {
        System.out.println("Error: " + responseCode);
      }
      // 关闭HTTP连接
      connection.disconnect();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}