如何使用RestTemplate发布XML字符串

import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;

public class XmlRestClient {
    public static void main(String[] args) {
        // 创建RestTemplate实例
        RestTemplate restTemplate = new RestTemplate();

        // 设置请求头
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_XML);

        // 创建XML字符串
        String xmlString = "<xml><name>John</name><age>25</age></xml>";

        // 发送POST请求
        ResponseEntity<String> response = restTemplate.postForEntity("http://example.com/api", xmlString, String.class);

        // 处理响应
        if (response.getStatusCode().is2xxSuccessful()) {
            String responseBody = response.getBody();
            System.out.println("Response: " + responseBody);
        } else {
            System.out.println("Request failed with status code: " + response.getStatusCodeValue());
        }
    }
}