resttemplatebuilder

import org.springframework.web.client.RestTemplate;
import org.springframework.boot.web.client.RestTemplateBuilder;

public class MyService {

    private final RestTemplate restTemplate;

    public MyService(RestTemplateBuilder builder) {
        this.restTemplate = builder
                .setConnectTimeout(Duration.ofSeconds(3))
                .setReadTimeout(Duration.ofSeconds(3))
                .build();
    }

    public String fetchData(String url) {
        return restTemplate.getForObject(url, String.class);
    }
}

RestTemplate restTemplate = new RestTemplateBuilder()
        .setConnectTimeout(Duration.ofSeconds(3))
        .setReadTimeout(Duration.ofSeconds(3))
        .build();

@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
    return builder.errorHandler(new CustomResponseErrorHandler()).build();
}

public class CustomResponseErrorHandler implements ResponseErrorHandler {
    @Override
    public boolean hasError(ClientHttpResponse response) throws IOException {
        return response.getStatusCode().isError();
    }

    @Override
    public void handleError(ClientHttpResponse response) throws IOException {
        // 处理错误逻辑
    }
}