增加 log 相关的示例

lab-37/lab-37-logging-aop/pom.xml

@@ -0,0 +1,29 @@
+<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.2.2.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>lab-37-logging-aop</artifactId>
+
+    <dependencies>
+        <!-- 实现对 Spring MVC 的自动化配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- 实现对 Spring AOP 的自动化配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-aop</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

lab-37/lab-37-logging-aop/src/main/java/cn/iocoder/springboot/lab37/loggingdemo/Application.java

@@ -0,0 +1,13 @@
+package cn.iocoder.springboot.lab37.loggingdemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}

lab-37/lab-37-logging-aop/src/main/java/cn/iocoder/springboot/lab37/loggingdemo/aspect/HttpAccessAspect.java

@@ -0,0 +1,50 @@
+package cn.iocoder.springboot.lab37.loggingdemo.aspect;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+@Aspect
+public class HttpAccessAspect {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @Around("@within(org.springframework.stereotype.Controller)" +
+        "|| @within(org.springframework.web.bind.annotation.RestController)")
+    public Object around(ProceedingJoinPoint point) throws Throwable {
+        // 获取类名
+        String className = point.getTarget().getClass().getName();
+        // 获取方法
+        String methodName = point.getSignature().getName();
+        // 记录开始时间
+        long beginTime = System.currentTimeMillis();
+        // 记录返回结果
+        Object result = null;
+        Exception ex = null;
+        try {
+            // 执行方法
+            result = point.proceed();
+            return result;
+        } catch (Exception e) {
+            ex = e;
+            throw e;
+        } finally {
+            // 计算消耗时间
+            long costTime = System.currentTimeMillis() - beginTime;
+            // 发生异常，则打印 ERROR 日志
+            if (ex != null) {
+                logger.error("[className: {}][methodName: {}][cost: {} ms][args: {}][发生异常]",
+                        className, methodName, point.getArgs(), ex);
+            // 正常执行，则打印 INFO 日志
+            } else {
+                logger.info("[className: {}][methodName: {}][cost: {} ms][args: {}][return: {}]",
+                        className, methodName, costTime, point.getArgs(), result);
+            }
+        }
+    }
+
+}

lab-37/lab-37-logging-aop/src/main/java/cn/iocoder/springboot/lab37/loggingdemo/controller/DemoController.java

@@ -0,0 +1,30 @@
+package cn.iocoder.springboot.lab37.loggingdemo.controller;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/demo")
+public class DemoController {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @GetMapping("/debug")
+    public void debug() {
+        logger.debug("debug");
+    }
+
+    @GetMapping("/info")
+    public void info() {
+        logger.info("info");
+    }
+
+    @GetMapping("/error")
+    public void error() {
+        logger.error("error");
+    }
+
+}

lab-37/lab-37-logging-aop/src/main/resources/application.yaml

@@ -0,0 +1,20 @@
+spring:
+  application:
+    name: demo-application # 应用名
+
+logging:
+  # 日志文件配置
+  file:
+#    path: /Users/yunai/logs/ # 日志文件路径。
+    name: /Users/yunai/logs/${spring.application.name}.log # 日志文件名。
+    max-history: 7 # 日志文件要保留的归档的最大天数。默认为 7 天。
+    max-size: 10MB # 日志文件的最大大小。默认为 10MB 。
+
+  # 日志级别
+  level:
+    cn:
+      iocoder:
+        springboot:
+          lab37:
+            loggingdemo:
+              controller: DEBUG

lab-37/lab-37-logging-aop/target/classes/application.yaml

@@ -0,0 +1,20 @@
+spring:
+  application:
+    name: demo-application # 应用名
+
+logging:
+  # 日志文件配置
+  file:
+#    path: /Users/yunai/logs/ # 日志文件路径。
+    name: /Users/yunai/logs/${spring.application.name}.log # 日志文件名。
+    max-history: 7 # 日志文件要保留的归档的最大天数。默认为 7 天。
+    max-size: 10MB # 日志文件的最大大小。默认为 10MB 。
+
+  # 日志级别
+  level:
+    cn:
+      iocoder:
+        springboot:
+          lab37:
+            loggingdemo:
+              controller: DEBUG

lab-37/lab-37-logging-log4j2/pom.xml

@@ -25,6 +25,7 @@
             </exclusions>
         </dependency>
 
+        <!-- 实现对 SLF4J + Log4j2 的依赖的引入 -->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-log4j2</artifactId>

lab-37/pom.xml

@@ -18,6 +18,7 @@
         <module>lab-37-logging-debug</module>
         <module>lab-37-logging-multi-env</module>
         <module>lab-37-logging-log4j2</module>
+        <module>lab-37-logging-aop</module>
     </modules>