淄博网站建设app开发,做购买网站,办公室现代简约装修,创新的医疗网站建设SpringBoot使用log4j2
在Spring Boot中所有的starter 都是基于spring-boot-starter-logging的#xff0c;默认使用Logback。使用Log4j2的话#xff0c;你需要排除 spring-boot-starter-logging 的依赖#xff0c;并添加 spring-boot-starter-log4j2的依赖。
配置依赖 …SpringBoot使用log4j2
在Spring Boot中所有的starter 都是基于spring-boot-starter-logging的默认使用Logback。使用Log4j2的话你需要排除 spring-boot-starter-logging 的依赖并添加 spring-boot-starter-log4j2的依赖。
配置依赖 !-- 自定义验证注解 --dependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-validation/artifactIdexclusionsexclusiongroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-logging/artifactId/exclusion/exclusions/dependencydependencygroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-log4j2/artifactId/dependencyOpenFeign日志配置
feign的配置类
public class BaseFeignConfig {BeanLogger.Level feignLoggerLevel() {return Logger.Level.FULL;}
}单个服务应用配置类
FeignClient(value crm-base,configuration BaseFeignConfig.class )
public interface BaseFeign {GetMapping(/getAppInfo)ResponseExObject getAppInfo(RequestParam(name appId) Integer appId);
}日志级别配置
logging.level.com.charles.feign.BaseFeigndebug打印效果
23-04-18 15:01:04 DEBUG http-nio-8080-exec-1 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] --- GET http://crm-base/getAppInfo?appId-1 HTTP/1.1
2023-04-18 15:01:04 DEBUG http-nio-8080-exec-1 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] --- END HTTP (0-byte body)
2023-04-18 15:02:37 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] --- END HTTP (0-byte body)
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] --- HTTP/1.1 200 (205ms)
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] connection: keep-alive
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] content-type: application/json
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] date: Tue, 18 Apr 2023 07:02:38 GMT
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] keep-alive: timeout60
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] transfer-encoding: chunked
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo]
2023-04-18 15:02:38 DEBUG http-nio-8080-exec-3 crm-emergency traceId- userId- com.linjiu.feign.BaseFeign.log:72:[BaseFeign#getAppInfo] {data:[{ ...源码解析
SynchronousMethodHandler#executeAndDecode发送请求。如果日志级别不是Logger.Level.NONE打印日志。 Object executeAndDecode(RequestTemplate template, Options options) throws Throwable {Request request targetRequest(template);if (logLevel ! Logger.Level.NONE) {logger.logRequest(metadata.configKey(), logLevel, request);}Response response;long start System.nanoTime();try {response client.execute(request, options);// ensure the request is set. TODO: remove in Feign 12response response.toBuilder().request(request).requestTemplate(template).build();} catch (IOException e) {if (logLevel ! Logger.Level.NONE) {logger.logIOException(metadata.configKey(), logLevel, e, elapsedTime(start));}throw errorExecuting(request, e);}long elapsedTime TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - start);if (decoder ! null)return decoder.decode(response, metadata.returnType());CompletableFutureObject resultFuture new CompletableFuture();asyncResponseHandler.handleResponse(resultFuture, metadata.configKey(), response,metadata.returnType(),elapsedTime);try {if (!resultFuture.isDone())throw new IllegalStateException(Response handling not done);return resultFuture.join();} catch (CompletionException e) {Throwable cause e.getCause();if (cause ! null)throw cause;throw e;}}
Slf4jLogger#logRequest判断是否允许debug日志输出 protected void logRequest(String configKey, Level logLevel, Request request) {if (this.logger.isDebugEnabled()) {super.logRequest(configKey, logLevel, request);}}Logger#logRequest打印具体的请求日志。 protected void logRequest(String configKey, Level logLevel, Request request) {log(configKey, --- %s %s HTTP/1.1, request.httpMethod().name(), request.url());if (logLevel.ordinal() Level.HEADERS.ordinal()) {for (String field : request.headers().keySet()) {for (String value : valuesOrEmpty(request.headers(), field)) {log(configKey, %s: %s, field, value);}}int bodyLength 0;if (request.body() ! null) {bodyLength request.length();if (logLevel.ordinal() Level.FULL.ordinal()) {String bodyText request.charset() ! null? new String(request.body(), request.charset()): null;log(configKey, ); // CRLFlog(configKey, %s, bodyText ! null ? bodyText : Binary data);}}log(configKey, --- END HTTP (%s-byte body), bodyLength);}}AsyncResponseHandler#handleResponse处理响应。打印日志用的是logger.logAndRebufferResponse void handleResponse(CompletableFutureObject resultFuture,String configKey,Response response,Type returnType,long elapsedTime) {// copied fairly liberally from SynchronousMethodHandlerboolean shouldClose true;try {if (logLevel ! Level.NONE) {response logger.logAndRebufferResponse(configKey, logLevel, response,elapsedTime);}} catch (final Exception e) {resultFuture.completeExceptionally(e);}}
Logger实体类创建FeignClientFactoryBean#feign创建Feign。 protected Builder feign(FeignContext context) {FeignLoggerFactory loggerFactory (FeignLoggerFactory)this.get(context, FeignLoggerFactory.class);Logger logger loggerFactory.create(this.type);Builder builder ((Builder)this.get(context, Builder.class)).logger(logger).encoder((Encoder)this.get(context, Encoder.class)).decoder((Decoder)this.get(context, Decoder.class)).contract((Contract)this.get(context, Contract.class));this.configureFeign(context, builder);return builder;}DefaultFeignLoggerFactory#create创建日志类。 public Logger create(Class? type) {return (Logger)(this.logger ! null ? this.logger : new Slf4jLogger(type));}使用slf4j进行创建类型是com.linjiu.feign.BaseFeign。这也解释了需要配置logging.level.com.charles.feign.BaseFeigndebug才能输出日志。有时间专门来一篇博客看看slf4j日志的生效逻辑和Springboot日志生效的逻辑。 public Slf4jLogger(Class? clazz) {this(LoggerFactory.getLogger(clazz));}
