分布式微服务架构日志调用链路跟踪-traceId
在ELK日志集成平台里(日志的写入,收集,跟踪,搜索,分析)
背景知识
在xxx(博主之前的公司),每个前端请求里面,都会在request的header区携带一个traceId 随机数值,用来跟踪在后端的调用链路栈打印.通过ES收集的日志数据,在ELK日志集成平台里,用traceId就能得到用户请求的完整链路,排查问题的效率非常高.那么具体是怎么设计的?
同样的,每个请求的用户会话信息该怎么传递?
traceId,UserId,facilityId,tenantId.
遇到的场景
有几个难题需要思考: 1.客户端调用方法中,遇到了rpc该怎么传递traceId? 2.遇到了feign接口该怎么传递traceId? 3.遇到了mq该怎么传递tranceId? 4.遇到了线程池里的新线程该怎么传递tranceId? 下面针对各个场景进行逐一的分析
xxx的实现方案:
在gateway中对sid进行校验和初步存储 gateway-GlobalFilter-SIDCheckedFilter.java gateway的原理:一系列的router和filter集合.
常见:
- IP白名单和黑名单控制
- SID检测
- 请求签名检测,防止恶意构建请求
- 用户会话检测,防止非系统用户请求
private static String getSID(ServerHttpRequest request) {
String sid = request.getHeaders().getFirst(Constants.HEADER_SID);
// 将sid放到日志的变量中
MDC.put(Constants.HEADER_SID,sid);
return sid;
}
@Override
public Mono<Void> execute(ServerHttpRequest request, ServerWebExchange exchange, GatewayFilterChain chain) {
String sid = getSID(request);
if(logger.isInfoEnabled()) {
String url = StringUtils.defaultIfBlank(request.getPath().value(), "");
String ip = IpUtils.getIp(request);
MDC.put(MDC_SID,sid);
MDC.put(MDC_URI,url);
MDC.put(MDC_IP,ip);
MDC.put(MDC_USER,null);
logger.info("网关请求..");
}
if (validSid) {
if (StringUtils.isBlank(sid)) {
logger.info("{} SID为空", this.getRequestUri(request));
// 构造返回错误信息
ApiResponse<String> responseMap = ApiResponse.failResp(RequestCode.SID_ISNULL);
return returnError(exchange, HttpStatus.BAD_REQUEST, responseMap);
}
// 解决高并发状态的多次重复请求问题
String redisSidKey = GatewayRedisKeyConstants.GATEWAY_SID_KEY_PREFIX + sid;
boolean isSuccess = redisTemplate.opsForValue().setIfAbsent(redisSidKey, GATEWAY_SID_KEY_DEF_VAL, GATEWAY_SID_KEY_EXPIRE_TIME, TimeUnit.MINUTES);
if (!isSuccess) {
logger.info("SID已存在,重复请求:{}", sid);
ApiResponse<String> responseMap = ApiResponse.failResp(RequestCode.SID_REPEATED_REQUESTS);
return returnError(exchange, HttpStatus.BAD_REQUEST, responseMap);
}
}
exchange = afterValidHandler(exchange);//验证过后处理器
return chain.filter(exchange);
}
/**
* 验证过后处理器
*
* @param exchange
* @return
*/
@Override
public ServerWebExchange afterValidHandler(ServerWebExchange exchange) {
ServerHttpRequest request = exchange.getRequest();
String sid = request.getHeaders().getFirst(Constants.HEADER_SID);
//不要验证SID的情况下，如果SI为空，默认生成一个SID，供下游系统使用
if (StringUtils.isBlank(sid)) {
//生成sid
String gatewaySid = "gateway_" + DateTimeUtils.format(LocalDateTime.now(), DateTimeUtils.FORMAT_1) + RandomUtil.randomNumbers(6);
//构造新的ServerHttpRequest
ServerHttpRequest.Builder builder = request.mutate()
//往header中添加网关生成的SID
.header(com.ess.framework.commons.constant.Constants.HEADER_SID, gatewaySid);
// 将sid放到日志的变量中
MDC.put(Constants.HEADER_SID,gatewaySid);
exchange = exchange.mutate().request(builder.build()).build();
}
return exchange;
}定义个framework-boot的依赖包
这个依赖包内使用interceptor拦截器对web请求做拦截,拿到traceId,通过threadLocal对象放入一个Context对象中.每个请求对应一个ThreadLocal对象. 每个服务的全局拦截器
@RefreshScope
public abstract class BootWebConfigurer implements WebMvcConfigurer {
protected final Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
private RequestMappingHandlerAdapter requestMappingHandlerAdapter;
@Bean
@RefreshScope
public GatewayInterceptor getGatewayInterceptor() {
return new GatewayInterceptor();
}
@Bean
@RefreshScope
public SIDInterceptor getSIDInterceptor() {
return new SIDInterceptor();
}
@Bean
@RefreshScope
public InnerInterceptor getInnerInterceptor() {
return new InnerInterceptor();
}
@Bean
public TokenInterceptor getTokenInterceptor() {
return new TokenInterceptor();
}
@Bean
public LogMdcInterceptor getLogMdcInterceptor() {
return new LogMdcInterceptor();
}
@Bean
public UnionInterceptor getUnionInterceptor() {
return new UnionInterceptor();
}
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(getSIDInterceptor()).addPathPatterns("/**").excludePathPatterns(ResouceConstants.EXCLUDE_STATIC_RESOURCE);
registry.addInterceptor(getGatewayInterceptor()).addPathPatterns("/**").excludePathPatterns(ResouceConstants.EXCLUDE_STATIC_RESOURCE);
registry.addInterceptor(getInnerInterceptor()).addPathPatterns("/**").excludePathPatterns(ResouceConstants.EXCLUDE_STATIC_RESOURCE);
registry.addInterceptor(getTokenInterceptor()).addPathPatterns("/**").excludePathPatterns(ResouceConstants.EXCLUDE_STATIC_RESOURCE);
registry.addInterceptor(getLogMdcInterceptor()).addPathPatterns("/**").excludePathPatterns(ResouceConstants.EXCLUDE_STATIC_RESOURCE);
// 添加联盟拦截器
registry.addInterceptor(getUnionInterceptor()).addPathPatterns("/**").excludePathPatterns(ResouceConstants.EXCLUDE_STATIC_RESOURCE);
}
/**
* 初始化SIDReturnValueHandler 对所有的响应返回SID字段
*/
@PostConstruct
public void initSidHandler() {
final List<HandlerMethodReturnValueHandler> originalHandlers = new ArrayList<>(requestMappingHandlerAdapter.getReturnValueHandlers());
final int deferredPos = obtainValueHandlerPosition(originalHandlers, DeferredResultMethodReturnValueHandler.class);
SIDReturnValueHandler decorator = null;
for (HandlerMethodReturnValueHandler handler : originalHandlers) {
if (handler instanceof RequestResponseBodyMethodProcessor) {
decorator = new SIDReturnValueHandler((RequestResponseBodyMethodProcessor) handler);
break;
}
}
originalHandlers.add(deferredPos + 1, decorator);
requestMappingHandlerAdapter.setReturnValueHandlers(originalHandlers);
}
private int obtainValueHandlerPosition(final List<HandlerMethodReturnValueHandler> originalHandlers, Class<?> handlerClass) {
for (int i = 0; i < originalHandlers.size(); i++) {
final HandlerMethodReturnValueHandler valueHandler = originalHandlers.get(i);
if (handlerClass.isAssignableFrom(valueHandler.getClass())) {
return i;
}
}
return -1;
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/");
registry.addResourceHandler("/favicon.ico").addResourceLocations("classpath:/favicon.ico");
registry.addResourceHandler("app.html").addResourceLocations("classpath:/");
registry.addResourceHandler("/error");
// Swagger2配置
registry.addResourceHandler("/v2/**");
registry.addResourceHandler("/swagger-resources/**");
registry.addResourceHandler("/csrf");
registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
registry.addResourceHandler("/swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/doc.html").addResourceLocations("classpath:/META-INF/resources/");
}
/**
* 自定义扩展消息转换器
*
* @param converters
*/
@Override
public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
//定义fastjson转换消息对象
FastJsonHttpMessageConverter fastJsonConverter = new FastJsonHttpMessageConverter();
//添加fastjson全局配置
FastJsonConfig fastJsonConfig = new FastJsonConfig();
fastJsonConfig.setSerializerFeatures(
// 排序配置
SerializerFeature.SortField,
SerializerFeature.MapSortField,
// 避免对象重复引用
SerializerFeature.DisableCircularReferenceDetect,
// 格式化输出
SerializerFeature.PrettyFormat
);
fastJsonConfig.setCharset(Charset.forName("UTF-8"));
fastJsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
//默认json会对属性里的json字符串值进行排序，加了这个Feature.OrderedField则会禁止排序
fastJsonConfig.setFeatures(Feature.OrderedField);
fastJsonConverter.setFastJsonConfig(fastJsonConfig);
//添加支持的MediaType类型
fastJsonConverter.setSupportedMediaTypes(Lists.newArrayList(MediaType.APPLICATION_JSON));
converters.set(0, fastJsonConverter);
//BigDecimal格式化
SerializeConfig serializeConfig = SerializeConfig.getGlobalInstance();
serializeConfig.put(BigDecimal.class, BigDecimalConfigure.instance);
fastJsonConfig.setSerializeConfig(serializeConfig);
//字节数组消息转换器（供文件下载使用）
converters.add(new ByteArrayHttpMessageConverter());
Map<String, HttpMessageConverter<?>> convertersMap = new LinkedHashMap<>();
//转换器去重，并设置所有转换器的默认编码
for (HttpMessageConverter converter : converters) {
String name = converter.getClass().getSimpleName();
if (converter instanceof StringHttpMessageConverter) {
//设置StringHttpMessageConverter的默认编码为：UTF-8
((StringHttpMessageConverter) converter).setDefaultCharset(Charset.forName("UTF-8"));
}
if (!convertersMap.containsKey(name)) {
convertersMap.put(name, converter);
}
}
converters.clear();
converters.addAll(Lists.newArrayList(convertersMap.values()));
}
@Bean
public Converter<String, LocalDate> localDateConverter() {
return new Converter<String, LocalDate>() {
@Override
public LocalDate convert(String source) {
return LocalDate.parse(source, Constants.DATE_FORMATTER);
}
};
}
@Bean
public Converter<String, LocalDateTime> localDateTimeConverter() {
return new Converter<String, LocalDateTime>() {
@Override
public LocalDateTime convert(String source) {
return LocalDateTime.parse(source, Constants.DATE_TIME_FORMATTER);
}
};
}
/**
* Java常用时间类型序列化和反序列化
* LocalDateTime、LocalDate、LocalTime、java.util.Date、java.sql.Date、Calendar、Timestamp
* 解决通过Feign调用时，客户端是以上类型会报错问题。
*/
@Bean
public ObjectMapper objectMapper() {
ObjectMapper objectMapper = new ObjectMapper();
JavaTimeModule javaTimeModule = new JavaTimeModule();
//定义序列化日期时间类型转换器
javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeUtils.DEFAULT_FORMATTER));
javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeUtils.YEAR_MONTH_DAY_FORMATTER));
javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeUtils.HOUR_MINUTE_SECOND_FORMATTER));
javaTimeModule.addSerializer(Date.class, new DateSerializer(true, new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT)));
javaTimeModule.addSerializer(java.sql.Date.class, new SqlDateSerializer().withFormat(true, new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT)));
javaTimeModule.addSerializer(Calendar.class, new CalendarSerializer(true, new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT)));
//定义反序列化日期时间类型转换器
javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeUtils.DEFAULT_FORMATTER));
javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeUtils.YEAR_MONTH_DAY_FORMATTER));
javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeUtils.HOUR_MINUTE_SECOND_FORMATTER));
javaTimeModule.addDeserializer(Date.class, new DateDeserializers.DateDeserializer(DateDeserializers.DateDeserializer.instance,
new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT), DateTimeUtils.DEFAULT_FORMAT));
javaTimeModule.addDeserializer(java.sql.Date.class, new DateDeserializers.SqlDateDeserializer(new DateDeserializers.SqlDateDeserializer(),
new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT), DateTimeUtils.DEFAULT_FORMAT));
javaTimeModule.addDeserializer(Calendar.class, new DateDeserializers.CalendarDeserializer(new DateDeserializers.CalendarDeserializer(),
new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT), DateTimeUtils.DEFAULT_FORMAT));
javaTimeModule.addDeserializer(Timestamp.class, new DateDeserializers.TimestampDeserializer(new DateDeserializers.TimestampDeserializer(),
new SimpleDateFormat(DateTimeUtils.DEFAULT_FORMAT), DateTimeUtils.DEFAULT_FORMAT));
objectMapper.registerModule(javaTimeModule);
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
return objectMapper;
}
}sid拦截器
package com.ess.framework.boot.interceptor;
import com.ess.framework.commons.constant.Constants;
import com.ess.framework.commons.response.RequestCode;
import com.ess.framework.commons.utils.EssContextHolder;
import com.ess.framework.commons.utils.ExceptionUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.servlet.HandlerInterceptor;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* SID 拦截器 ，验证SID是否为空
*/
@RefreshScope
public class SIDInterceptor implements HandlerInterceptor {
protected final Logger logger = LoggerFactory.getLogger(this.getClass());
/**
* 是否验证SID
*/
@Value("${valid.sid:false}")
private boolean validSid = false;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
String sid = request.getHeader(Constants.HEADER_SID);
// 验证sid是否为空
if (validSid && StringUtils.isBlank(sid)) {
logger.warn("{} {}", request.getRequestURI(), RequestCode.SID_ISNULL.message());
ExceptionUtils.throwBusiness(RequestCode.SID_ISNULL);
}
// 设置SID到线程变量 这是传输的关键
if (StringUtils.isNotBlank(sid)) {
EssContextHolder.setSID(sid);
} else {
EssContextHolder.setSID(null);
}
return true;
}
}关于feign接口的传递tranceId
package com.ess.framework.boot.interceptor;
import com.ess.framework.commons.constant.Constants;
import com.ess.framework.commons.utils.EssContextHolder;
import com.ess.framework.commons.utils.IpUtils;
import feign.RequestInterceptor;
import feign.RequestTemplate;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.MDC;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
/**
* @ClassName FeignRequestInterceptor
* @Description feign拦截器
* @Date 2021/5/27 21:56
* @Version
*/
@Slf4j
public class FeignRequestInterceptor implements RequestInterceptor {
private final static String HEADER_ESS_FEIGN_IP = "ess-feign-ip";
private final static String HEADER_IP = "ip";
@Override
public void apply(RequestTemplate requestTemplate) {
try {
String ip = null;
String sid = null;
String token = null;
String unionId = null;
/* ExecuteTaskUtils 线程池处理方案**/
String threadName = Thread.currentThread().getName();
if (StringUtils.startsWith(threadName, "ess-task-pool") || StringUtils.startsWith(threadName, "ess-async-pool")) {
sid = MDC.get(Constants.HEADER_SID);
ip = MDC.get(HEADER_IP);
unionId = EssContextHolder.getUnionId();
token = EssContextHolder.getToken();
} else {
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
if (attributes == null) {
return;
}
HttpServletRequest request = attributes.getRequest();
token = request.getHeader(Constants.HEADER_TOKEN);
sid = request.getHeader(Constants.HEADER_SID);
ip = IpUtils.getIPAddress(request);
unionId = request.getHeader(Constants.HEADER_UNIONID);
}
requestTemplate.header(Constants.HEADER_TOKEN, token);
requestTemplate.header(Constants.HEADER_SID, sid);
requestTemplate.header(Constants.HEADER_UNIONID, unionId);
requestTemplate.header(HEADER_ESS_FEIGN_IP, ip);
// feign调用都设置网关标识设置为true，防止被拦截
requestTemplate.header(Constants.PASS_GATEWAY, "true");
} catch (Exception e) {
log.error("拦截器异常", e);
}
}
}由此可见,feign请求的本质就是requestTemplate,而原理上,就是把sid重新塞到request的header里面.
线程池sid的传递
那么怎么传递到另外的线程里呢? ==答案就是threadLocal作为管道存储对象.
package com.ess.framework.commons.utils;
/**
* 线程变量上下文
*/
public class EssContextHolder {
private EssContextHolder() {
}
/**
* sid
*/
private final static ThreadLocal<String> SID = new ThreadLocal<>();
/**
* token
*/
private final static ThreadLocal<String> TOKEN = new ThreadLocal<>();
/**
* 联盟code
*/
private final static ThreadLocal<String> UNION_CODE = new ThreadLocal<>();
/**
* 联盟unionId
*/
private final static ThreadLocal<String> UNION_ID = new ThreadLocal<>();
/**
* 设置SID
*
* @param sid
*/
public static void setSID(String sid) {
EssContextHolder.SID.set(sid);
}
/**
* 获取SID
*/
public static String getSID() {
return EssContextHolder.SID.get();
}
/**
* 设置TOKEN
*
* @param token
*/
public static void setToken(String token) {
EssContextHolder.TOKEN.set(token);
}
/**
* 获取TOKEN
*/
public static String getToken() {
return EssContextHolder.TOKEN.get();
}
/**
* 设置unionCode
*/
public static void setUnionCode(String unionCode) {
EssContextHolder.UNION_CODE.set(unionCode);
}
/**
* 获取unionCode
*/
public static String getUnionCode() {
return EssContextHolder.UNION_CODE.get();
}
/**
* 设置unionId
*/
public static void setUnionId(String unionId) {
EssContextHolder.UNION_ID.set(unionId);
}
/**
* 获取联盟unionId
*/
public static String getUnionId() {
return EssContextHolder.UNION_ID.get();
}
}重载线程池实现细节,这样springboot在使用自定义线程池时,就会初始化个性化的实现细节,把sid等会话状态传递到线程的ThreadLocal里.
package com.ess.framework.boot.asynctask;
import com.ess.framework.commons.utils.EssContextHolder;
import org.slf4j.MDC;
import java.util.concurrent.*;
/**
* @ClassName ttt
* @Description TODO
* @Author shengfq
* @Date 2021/5/28 0028 上午 10:53
* @Version
*/
public class ThreadPoolExecutorMdcWrapper extends ThreadPoolExecutor {
public ThreadPoolExecutorMdcWrapper(AsyncTaskThreadPoolConfig config,ThreadFactory threadFactory,RejectedExecutionHandler handler ) {
this(config.getCorePoolSize(), config.getMaxPoolSize(), config.getKeepAliveSecond(), TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(config.getQueueCapacity()),threadFactory,handler);
}
public ThreadPoolExecutorMdcWrapper(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
BlockingQueue<Runnable> workQueue) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);
}
public ThreadPoolExecutorMdcWrapper(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory);
}
public ThreadPoolExecutorMdcWrapper(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, handler);
}
public ThreadPoolExecutorMdcWrapper(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit,
BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory,
RejectedExecutionHandler handler) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
}
@Override
public void execute(Runnable task) {
String sid = EssContextHolder.getSID();
String token = EssContextHolder.getToken();
String unionId = EssContextHolder.getUnionId();
super.execute(ThreadMdcUtil.wrap(sid,token,unionId,task, MDC.getCopyOfContextMap()));
}
@Override
public <T> Future<T> submit(Runnable task, T result) {
String sid = EssContextHolder.getSID();
String token = EssContextHolder.getToken();
String unionId = EssContextHolder.getUnionId();
return super.submit(ThreadMdcUtil.wrap(sid,token,unionId,task, MDC.getCopyOfContextMap()), result);
}
@Override
public <T> Future<T> submit(Callable<T> task) {
String sid = EssContextHolder.getSID();
String token = EssContextHolder.getToken();
String unionId = EssContextHolder.getUnionId();
return super.submit(ThreadMdcUtil.wrap(sid,token,unionId,task, MDC.getCopyOfContextMap()));
}
@Override
public Future<?> submit(Runnable task) {
String sid = EssContextHolder.getSID();
String token = EssContextHolder.getToken();
String unionId = EssContextHolder.getUnionId();
return super.submit(ThreadMdcUtil.wrap(sid,token,unionId,task, MDC.getCopyOfContextMap()));
}
}mq消息的sid传递
如何传递给mq的消费者呢?实际上有了EssContextHolder对象,在Thread里获取sid很方便,如何通过mq传递sid,可以把sid放入message的header区,在消费端取出来,存入消费端线程的ThreadLocal对象中,就能起到传递的作用.
消息发送
消息接收
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.function.Consumer;
import org.hzero.core.exception.OptimisticLockException;
import org.hzero.core.message.MessageAccessor;
import org.springframework.amqp.core.Message;
import com.rabbitmq.client.Channel;
import com..mom.me.common.constants.MeBaseConstants;
import com..mom.me.common.mq.MessageHandler;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import io.choerodon.core.exception.CommonException;
import io.choerodon.core.oauth.CustomUserDetails;
import io.choerodon.core.oauth.DetailsHelper;
import lombok.extern.slf4j.Slf4j;
/**
* <p>
* 消息处理类
* </p>
*/
@Slf4j
public abstract class AbstractMessageHandlers implements MessageHandler {
private AbstractMessageHandlers() {}
public static void handleMessage(Message msg, Map<String, Object> headers, Channel channel, Consumer<String> fn) {
String consumerQueue = msg.getMessageProperties().getConsumerQueue();
try {
log.trace("消息队列[{}]处理, headers={}", consumerQueue, headers);
fn.accept(new String(msg.getBody(), StandardCharsets.UTF_8));
} catch (CommonException e) {
log.error("消息队列[{}], 消息处理失败业务异常->{}", consumerQueue,
MessageAccessor.getMessage(e.getCode(), e.getParameters(), e.getMessage()).desc());
} catch (IllegalArgumentException e) {
log.error("消息队列[{}], 消息处理失败业务异常: {}", consumerQueue, e.getMessage());
} catch (OptimisticLockException e) {
// 如果乐观锁异常 则触发重试
log.warn("消息队列[{}], 数据处理乐观锁异常触发重试", consumerQueue);
throw e;
} catch (Exception e) {
log.error("消息队列[{}], 消息处理失败系统异常", consumerQueue, e);
}
}
/**
* 携带用户会话信息 -> 消息头获取用户会话信息
*
* 经AbstractMessageSender 发送MQ消息会在消息头附加用户会话信息
*
* JSON示例如下
*
* @param msg
* @param headers
* @param channel
* @param fn
*/
public static void handleWithUser(Message msg, Map<String, Object> headers, Channel channel, Consumer<String> fn) {
try {
// 生产执行发出的mq消息头带有用户会话信息 切勿用于其他系统、模块的mq消息处理
Object userDetails = headers.get(Constants.HEADER_SID);
if (ObjectUtil.isNull(userDetails)) {
throw new CommonException("MQ消息头获取用户会话信息失败！！！");
}
JSONObject jsonObject = JSONUtil.parseObj(userDetails);
log.trace("设置用户会话信息，传入JSONObject信息: {}", jsonObject);
CustomUserDetails details = new CustomUserDetails(jsonObject.getStr("username"), MeBaseConstants.DEFAULT);
details.setTenantId(jsonObject.getLong("tenantId"));
details.setUserId(jsonObject.getLong("userId"));
details.setOrganizationId(jsonObject.getLong("organizationId"));
details.setRealName(jsonObject.getStr("realName"));
details.setLanguage(jsonObject.getStr("language"));
details.setAdditionInfo(jsonObject.getJSONObject("additionInfo"));
DetailsHelper.setCustomUserDetails(details);
// 设置用户会话异常
} catch (Exception e) {
log.error("消息队列[{}], 消息处理失败", msg.getMessageProperties().getConsumerQueue(), e);
return;
}
handleMessage(msg, headers, channel, fn);
}
public static void handleWithNack(Message msg, Map<String, Object> headers, Channel channel, Consumer<String> fn) {
String consumerQueue = msg.getMessageProperties().getConsumerQueue();
try {
log.trace("消息队列[{}]处理, headers={}", consumerQueue, headers);
fn.accept(new String(msg.getBody(), StandardCharsets.UTF_8));
ack(msg, channel);
} catch (CommonException e) {
log.error("消息队列[{}], 消息处理失败业务异常->{}", consumerQueue,
MessageAccessor.getMessage(e.getCode(), e.getParameters(), e.getMessage()).desc());
nack(msg, channel);
} catch (IllegalArgumentException e) {
log.error("消息队列[{}], 消息处理失败业务异常: {}", consumerQueue, e.getMessage());
nack(msg, channel);
} catch (Exception e) {
log.error("消息队列[{}], 消息处理失败系统异常：{}", consumerQueue, e);
nack(msg, channel);
}
}
public static void handleWithUserThrowEx(Message msg, Map<String, Object> headers, Channel channel,
Consumer<String> fn) {
String consumerQueue = msg.getMessageProperties().getConsumerQueue();
try {
// 生产执行发出的mq消息头带有用户会话信息 切勿用于其他系统、模块的mq消息处理
Object userDetails = headers.get(MeBaseConstants.USER_DETAILS_KEY);
if (ObjectUtil.isNull(userDetails)) {
throw new CommonException("MQ消息头获取用户会话信息失败！！！");
}
JSONObject jsonObject = JSONUtil.parseObj(userDetails);
log.trace("设置用户会话信息，传入JSONObject信息: {}", jsonObject);
CustomUserDetails details = new CustomUserDetails(jsonObject.getStr("username"), MeBaseConstants.DEFAULT);
details.setTenantId(jsonObject.getLong("tenantId"));
details.setUserId(jsonObject.getLong("userId"));
details.setOrganizationId(jsonObject.getLong("organizationId"));
details.setRealName(jsonObject.getStr("realName"));
details.setLanguage(jsonObject.getStr("language"));
details.setAdditionInfo(jsonObject.getJSONObject("additionInfo"));
DetailsHelper.setCustomUserDetails(details);
log.trace("消息队列[{}]处理, headers={}", consumerQueue, headers);
fn.accept(new String(msg.getBody(), StandardCharsets.UTF_8));
} catch (CommonException e) {
log.error("消息队列[{}], 消息处理失败业务异常->{}, 详细信息：", consumerQueue,
MessageAccessor.getMessage(e.getCode(), e.getParameters(), e.getMessage()).desc(), e);
throw e;
} catch (Exception e) {
log.error("消息队列[{}], 消息处理失败系统异常：{}", consumerQueue, e);
throw e;
}
}
private static void ack(Message msg, Channel channel) {
try {
long deliverTag = msg.getMessageProperties().getDeliveryTag();
channel.basicAck(deliverTag, false);
} catch (IOException ioe) {
log.error("消息处理ack异常{}", ioe.getMessage(), ioe);
}
}
private static void nack(Message msg, Channel channel) {
try {
long deliverTag = msg.getMessageProperties().getDeliveryTag();
channel.basicNack(deliverTag, false, true);
} catch (IOException ioe) {
log.error("消息处理nack异常{}", ioe.getMessage(), ioe);
}
}
}总结
综上所述,sid的设置,拦截,传递,存储都有对应的机制.那么在日志系统中的存储则是通过org.slf4j.MDC;这个对象来实现的.
这个对象的实现机制不在本文中展开细节,后续日志的入库,检索,都是通过slf4j这个日志框架和ELK日志系统进行.本文着重讲解了在应用服务中一个跟踪请求的链路id是如何传递,存储的.
属于抛砖引玉的内容,内容较为主观,希望能对自己和其他开发者在分布式日志调用链路上有点启发.谢谢
参考
SpringBoot + MDC 实现全链路调用日志跟踪
微服务-网关Spring Gateway进阶-日志跟踪唯一ID
日志全链路追踪之MDC
秒杀 ： 做一个完善的全链路日志实现方案有多简单