新增common-trace模块:traceId设置到feign调用head中

axzo-common-loggings/axzo-common-trace/pom.xml

@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>axzo-common-loggings</artifactId>
+        <groupId>cn.axzo.framework.logging</groupId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+    <groupId>com.axzo.framework</groupId>
+    <artifactId>axzo-common-trace</artifactId>
+    <name>Axzo Common trace</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-logging</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-core</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.github.openfeign</groupId>
+            <artifactId>feign-httpclient</artifactId>
+        </dependency>
+
+    </dependencies>
+
+</project>

axzo-common-loggings/axzo-common-trace/src/main/java/com/axzo/framework/trace/interceptor/FeignInterceptor.java

@@ -0,0 +1,23 @@
+package com.axzo.framework.trace.interceptor;
+
+import feign.RequestInterceptor;
+import feign.RequestTemplate;
+import org.slf4j.MDC;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * 调用前从 MDC中获取上一步骤设置的traceId，放置到 header中，供下一个服务从header中获取traceId
+ */
+@Configuration
+public class FeignInterceptor implements RequestInterceptor {
+    private static final String TRACE_ID = "traceId";
+
+    public static final String CTX_LOG_ID_MDC = "ctxLogId";
+
+    @Override
+    public void apply(RequestTemplate requestTemplate) {
+        requestTemplate.header(TRACE_ID, MDC.get(TRACE_ID));
+        requestTemplate.header(CTX_LOG_ID_MDC, MDC.get(CTX_LOG_ID_MDC));
+    }
+}
+