我正在嘗試在我的 spring 啟動應用程式中添加 log4j2 框架，并且我正在使用 spring AOP 將日志記錄問題與我的邏輯業務隔離開來。不幸的是，當我嘗試記錄我的訊息時，log4j2 不起作用，而是使用 spring 默認日志記錄。
這是我嘗試記錄訊息的 Logging 方面類：LoggingAspect.java
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Aspect
@Component
public class LoggingAspect {
@Around("com.obs.dqsc.api.config.AspectConfig.businessService() || com.obs.dqsc.api.config.AspectConfig.repositoryOperations()")
public Object logMethod(final ProceedingJoinPoint joinPoint)
throws Throwable {
final Class<?> targetClass = joinPoint.getTarget().getClass();
final Logger logger = LoggerFactory.getLogger(targetClass);
try {
final String className = targetClass.getSimpleName();
logger.debug(getPreMessage(joinPoint, className));
final StopWatch stopWatch = new StopWatch();
stopWatch.start();
final Object retVal = joinPoint.proceed();
stopWatch.stop();
logger.debug(getPostMessage(joinPoint, className, stopWatch.getTotalTimeMillis()));
return retVal;
} catch (final Throwable ex) {
logger.error(getErrorMessage(ex), ex);
throw ex;
}
}
private static String getPreMessage(final JoinPoint joinPoint, final String className) {
final StringBuilder builder = new StringBuilder()
.append("Entered in ").append(className).append(".")
.append(joinPoint.getSignature().getName())
.append("(");
appendTo(builder, joinPoint);
return builder
.append(")")
.toString();
}
private static String getPostMessage(final JoinPoint joinPoint, final String className, final long millis) {
return "Exit from " className "."
joinPoint.getSignature().getName()
"(..); Execution time: "
millis
" ms;";
}
private static String getErrorMessage(final Throwable ex) {
return ex.getMessage();
}
private static void appendTo(final StringBuilder builder, final JoinPoint joinPoint) {
final Object[] args = joinPoint.getArgs();
for (int i = 0; i < args.length; i ) {
if (i != 0) {
builder.append(", ");
}
builder.append(args[i]);
}
}
}
這是我的 pom.xml 檔案：
<?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>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.5</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.obs.dqsc</groupId>
<artifactId>dqsc-api</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>api</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>16</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>5.0.0</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>5.0.0</version>
</dependency>
</dependencies>
<build>
<finalName>api-0.0.1-SNAPSHOT</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${project.parent.version}</version>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
最后這是我的 log4j2.xml 檔案：
<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d{yyyy-MMM-dd HH:mm:ss} [%t] %-5level %-50c{1.} - %msg%n" />
</Console>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="Console" />
</Root>
</Loggers>
</Configuration>
而且，當我嘗試使用 logger.info() 而不是 logger.debug() 時，它會在控制臺中列印一些內容，但使用 .debug() 則不會！（該訊息顯然是使用 spring 默認日志記錄列印的）
我的 application.properties 不包含任何與 log4j 相關的內容，而且我的 log4j2.xml 也在 src/main/resources 中
uj5u.com熱心網友回復：
以這種方式排除 spring boot 默認日志記錄：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
并像您一樣添加 spring boot log4j2 依賴項，您會沒事的。因為您僅在 Web 模塊上排除了日志記錄模塊，它仍然會被其他依賴項（例如資料 mongodb 模塊）拉入。
轉載請註明出處，本文鏈接：https://www.uj5u.com/shujuku/355778.html
標籤：爪哇 弹簧靴 行家 日志4j2 spring-aop