3 回答
TA贡献1712条经验 获得超3个赞
也许你可以尝试使用自定义假装调用处理程序工厂。
我已经设法使用如下代码记录请求感知器:
更改启用特征客户端并添加默认配置
@EnableFeignClients(defaultConfiguration = FeignConfig.class)
添加默认的假装配置
@Configuration
public class FeignConfig {
@Bean
@ConditionalOnMissingBean
public Retryer feignRetryer() {
return Retryer.NEVER_RETRY;
}
@Bean
@Scope("prototype")
@ConditionalOnMissingBean
public Feign.Builder feignBuilder(Retryer retryer) {
return Feign.builder()
.retryer(retryer)
.invocationHandlerFactory((target, dispatch) -> new CountingFeignInvocationHandler(target, dispatch));
}
}
创建调用处理程序(基于假装的代码。反光费恩.假装调用手)
public class CountingFeignInvocationHandler implements InvocationHandler {
private final Target target;
private final Map<Method, MethodHandler> dispatch;
public CountingFeignInvocationHandler(Target target, Map<Method, MethodHandler> dispatch) {
this.target = checkNotNull(target, "target");
this.dispatch = checkNotNull(dispatch, "dispatch for %s", target);
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
if ("equals".equals(method.getName())) {
try {
Object otherHandler =
args.length > 0 && args[0] != null ? Proxy.getInvocationHandler(args[0]) : null;
return equals(otherHandler);
} catch (IllegalArgumentException e) {
return false;
}
} else if ("hashCode".equals(method.getName())) {
return hashCode();
} else if ("toString".equals(method.getName())) {
return toString();
}
RequestLine requestLine = method.getAnnotation(RequestLine.class);
addStatistics(requestLine.value());
return dispatch.get(method).invoke(args);
}
@Override
public boolean equals(Object obj) {
if (obj instanceof CountingFeignInvocationHandler) {
CountingFeignInvocationHandler other = (CountingFeignInvocationHandler) obj;
return target.equals(other.target);
}
return false;
}
@Override
public int hashCode() {
return target.hashCode();
}
@Override
public String toString() {
return target.toString();
}
}
要小心,检查你是否假装配置不是更复杂,在这种情况下,根据需要扩展类。
TA贡献1871条经验 获得超8个赞
If you are using spring-cloud-starter-openfeign , You could do something like below
add the a primary contract bean
@Bean("YourContract")
@Primary
public Contract springpringContract() {
return (targetType) -> {
List<MethodMetadata> parseAndValidatateMetadata = new SpringMvcContract().parseAndValidatateMetadata(targetType);
parseAndValidatateMetadata.forEach(metadata -> {
RequestTemplate template = metadata.template();
template.header("unresolved_uri", template.path().replace("{", "[").replace("}", "]"));
});
return parseAndValidatateMetadata;
};
}
Add the contract to the feign client builder
@Bean
public <T> T feignBuilder(Class<T> feignInterface, String targetURL) {
return Feign.builder().client(getClient())
.contract(contract)
.
.
}
Once you are done with the above you should be able to access the unresolved path in the RequestTemplate
@component
public class FeignRequestFilter implements RequestInterceptor {
@Override
public void apply(RequestTemplate template) {
String unresolvedUri = template.headers().getOrDefault("unresolved_uri", Collections.singleton(template.path()))
.iterator().next();
}
}
TA贡献1829条经验 获得超13个赞
也许你可以尝试覆盖假装记录器。
假设我们有一个假装的客户,
@FeignClient(name = "demo-client", url = "http://localhost:8080/api", configuration = FeignConfig.class)
public interface DemoClient {
@GetMapping(value = "/test/{id}")
void test(@PathVariable(name = "id") Integer id) {
}
}
import feign.Logger;
import feign.Request;
import feign.Response;
import java.io.IOException;
public class CustomFeignRequestLogging extends Logger {
@Override
protected void logRequest(String configKey, Level logLevel, Request request) {
super.logRequest(configKey, logLevel, request);
// targetUrl = http://localhost:8080/api
String targetUrl = request.requestTemplate().feignTarget().url();
// path = /test/{id}
String path = request.requestTemplate().methodMetadata().template().path();
}
}
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