Spring RestTemplate状态码异常将自定义消息传递给异常处理

import org.springframework.http.HttpStatus;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.web.client.ResponseErrorHandler;
import java.io.IOException;

public class CustomResponseErrorHandler implements ResponseErrorHandler {

    @Override
    public boolean hasError(ClientHttpResponse response) throws IOException {
        return (response.getStatusCode() != HttpStatus.OK);
    }

    @Override
    public void handleError(ClientHttpResponse response) throws IOException {
        // 获取状态码并自定义消息
        HttpStatus statusCode = response.getStatusCode();
        String statusText = response.getStatusText();

        // 处理自定义消息，例如抛出自定义异常
        throw new CustomException(statusText);
    }
}

// 在使用RestTemplate时，设置自定义异常处理器
RestTemplate restTemplate = new RestTemplate();
restTemplate.setErrorHandler(new CustomResponseErrorHandler());