我希望实现Spring拦截器，以便打印每个接收和发送的API XML请求。我尝试了这个测试代码：
@SpringBootApplication
@EntityScan(".....")
public class Application extends SpringBootServletInitializer implements WebMvcConfigurer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Bean
public RestTemplate restTemplate() {
RestTemplate restTemplate = new RestTemplate();
List<ClientHttpRequestInterceptor> interceptors = restTemplate.getInterceptors();
// check if restTeamplate doesn't already have other interceptors
if (CollectionUtils.isEmpty(interceptors)) {
interceptors = new ArrayList<>();
}
interceptors.add(new RestTemplateHeaderModifierInterceptor());
restTemplate.setInterceptors(interceptors);
return restTemplate;
}
@Bean
public WebMvcConfigurer webMvcConfigurer() {
return new WebMvcConfigurer() {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new RestTemplateHeaderModifierInterceptor());
}
};
}
}
记录日志的组件：
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.ui.ModelMap;
import org.springframework.web.context.request.WebRequest;
import org.springframework.web.context.request.WebRequestInterceptor;
import org.springframework.web.servlet.HandlerInterceptor;
import io.micrometer.core.instrument.util.IOUtils;
@Component
public class RestTemplateHeaderModifierInterceptor implements ClientHttpRequestInterceptor, HandlerInterceptor {
private static final Logger LOGGER = LoggerFactory.getLogger(HomeController.class);
@Override
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution)
throws IOException {
StringBuilder sb = new StringBuilder();
sb.append("[ ");
for (byte b : body) {
sb.append(String.format("0x%02X ", b));
}
sb.append("]");
LOGGER.debug("!!!!!!!!!!!!!!! Input " + sb.toString());
System.out.println("!!!!!!!!!!!!!!!");
ClientHttpResponse response = execution.execute(request, body);
InputStream inputStream = response.getBody();
String result = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
LOGGER.debug("!!!!!!!!!!!!!!! result " + result);
System.out.println("!!!!!!!!!!!!!!!");
return response;
}
}
但在DEBUG模式下控制台没有输出任何内容。我错在哪里了？可能是这个组件没有注册或者我缺少一些重要的配置吗？