Rest 尝试将Logger对象强制转换为我自己的包装器记录器时获取ClassCastException

我试图通过扩展logger来编写一个包装器logger类，它将记录类名、方法名、消息和错误/异常详细信息

在下面的行中获取异常

ILogger logger = 
(CustomLogger)org.apache.logging.log4j.LogManager.getLogger(name);

使用下面的XML，有时它也会使用SLF4J记录器，并获得SLF4J绑定异常

My pom.xml：

<?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">
<modelVersion>4.0.0</modelVersion>

<groupId>com.Logger</groupId>
<artifactId>WrapperLogger</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>WrapperLogger</name>
<description>Demo project for Spring Boot</description>

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.2.RELEASE</version>
    <relativePath /> <!-- lookup parent from repository -->
</parent>

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-logging</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>

4.0.0
com.Logger
包装记录器
0.0.1-快照
罐子
包装记录器
SpringBoot的演示项目
org.springframework.boot
spring启动程序父级
2.0.2.1发布
UTF-8
UTF-8
1.8
org.springframework.boot
弹簧靴起动器
org.springframework.boot
spring启动程序日志记录
org.springframework.boot
spring-boot-starter-log4j2
org.springframework.boot
弹簧起动试验
测试
org.springframework.boot
springbootmaven插件

======================================================================================================

log4j.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
<Appenders>
<!-- Console Appender -->
<Console name="Console" target="SYSTEM_OUT">
  <PatternLayout pattern="%d{yyyy-MMM-dd HH:mm:ss a} [%t] %M,%C, 
  %-5level %logger{36} - %msg%n" />
</Console>
<!-- File Appender -->
<File name="File" fileName="d:/app.log">
  <PatternLayout pattern="%d{yyyy-MMM-dd HH:mm:ss a} [%t] %-5level 
  %logger{36} - %msg%n" />
</File>
</Appenders>

<Loggers>
<!-- Log everything in custom package -->
<Logger name="com.boraji.tutorial.springboot" level="debug" additivity="false">
  <AppenderRef ref="Console" />
  <AppenderRef ref="File" />
</Logger>
<!-- Log everything in Spring Boot -->
<Logger name="org.springframework.boot" level="debug" additivity="false">
  <AppenderRef ref="Console" />
  <AppenderRef ref="File" />
</Logger>

<!-- Log everything in Spring Core -->
<Logger name="org.springframework.core" level="debug" additivity="false">
  <AppenderRef ref="Console" />
  <AppenderRef ref="File" />
</Logger>

<Root level="info">
  <AppenderRef ref="Console" />
  <AppenderRef ref="File" />
</Root>

---

要删除

slf4j绑定异常

，您可能应该从

pom.xml

中删除

spring boot starter日志记录

依赖项

实际上，

springbootstarter

artificate已经添加了这个依赖项，所以您需要像下面那样排除它-

    <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>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>
    <dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-test</artifactId>
       <scope>test</scope>
   </dependency>

org.springframework.boot
弹簧靴起动器
org.springframework.boot
spring启动程序日志记录
org.springframework.boot
spring-boot-starter-log4j2
org.springframework.boot
弹簧起动试验
测试

您可能需要向我们展示CustomLogger的定义……我在这个博客中介绍了CustomLogger（），您好，Vikas谢谢，它在我的本地系统中工作，而我试图在我的office项目中实现它却不工作。虽然我尝试排除SLF4J和默认日志记录。您能否分享这两个项目的详细信息以及如何实现自定义日志记录程序。我参考了这个博客了解自定义日志记录程序（）