将 spring 引导从 1.3.5 更新到 1.5.17 后未找到 log4j 库

Question

我将 spring 引导从 1.3.5 升级到 1.5.17，但不再找到 log4j 库。错误显示 Error:(10, 24) java: package org.apache.log4j does not exist。这是我的 pom.xml

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.17.RELEASE</version>
    <relativePath />
</parent>
<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-log4j</artifactId>
</dependency>
<dependency>
     <groupId>org.springframework.kafka</groupId>
     <artifactId>spring-kafka</artifactId>
     <version>1.3.8.RELEASE</version>
</dependency>
<dependency>
     <groupId>org.apache.kafka</groupId>
     <artifactId>kafka_2.10</artifactId>
     <version>0.8.2.2</version>
 <exclusions>
    <exclusion>
      <groupId>org.apache.zookeeper</groupId>
      <artifactId>zookeeper</artifactId>
    </exclusion>
    <exclusion>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
    </exclusion>
  </exclusions>
</dependency>

Answer 1

自 Spring Boot 1.4 以来，对 log4j 1.x 的支持已被删除，如 release notes of Spring boot 1.4:

中所示

Log4j 1 support has been removed following Apache EOL announcement.

他们建议升级到 log4j 2.x，这可以通过使用以下依赖项来完成：

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

将 spring 引导从 1.3.5 更新到 1.5.17 后未找到 log4j 库

No log4j library found after updating spring boot from 1.3.5 to 1.5.17

java

spring

log4j

spring-boot