将 log4j2 与 slf4j 一起使用：java.lang.StackOverflowError
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Using log4j2 with slf4j: java.lang.StackOverflowError
提问by Akshay
So I have tried following this(non-maven implementation) and requirements in their web sitefor adding slf4j to log4j. and tried using this code
所以我尝试在他们的网站上遵循这个（非 Maven 实现）和要求，将 slf4j 添加到 log4j。并尝试使用此代码
public static void main(String[] args) {
Logger logger = LoggerFactory.getLogger(Main.class);
logger.info("test");
}
and added the following to my library
并将以下内容添加到我的库中
- log4j-api-2.3.jar
- log4j-core-2.3.jar
- log4j-sl4j-impl-2.3.jar
- log4j-to-sl4j-2.3.jar
- slf4j-api-1.7.12.jar
- log4j-api-2.3.jar
- log4j-core-2.3.jar
- log4j-sl4j-impl-2.3.jar
- log4j-to-sl4j-2.3.jar
- slf4j-api-1.7.12.jar
when I try running it I get the following error
当我尝试运行它时，出现以下错误
Exception in thread "main" java.lang.StackOverflowError
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:964)
at org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:40)
at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:37)
at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:29)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:284)
at org.apache.logging.slf4j.SLF4JLoggerContext.getLogger(SLF4JLoggerContext.java:41)
at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:37)
at org.apache.logging.slf4j.Log4jLoggerFactory.newLogger(Log4jLoggerFactory.java:29)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:284)...
Any idea where I am going wrong?
知道我哪里出错了吗？
采纳答案by Andreas
You're creating a call-loop with log4j-slf4j-impl-2.3.jarand log4j-to-slf4j-2.3.jar.
您正在使用log4j-slf4j-impl-2.3.jar和创建一个调用循环log4j-to-slf4j-2.3.jar。
log4j-slf4j-impl-2.3.jaris the implementation of the adapter that sends slf4j calls to log4j.
log4j-slf4j-impl-2.3.jar是将 slf4j 调用发送到 log4j 的适配器的实现。
log4j-to-slf4j-2.3.jaris sending log4j calls right back to slf4j. Remove this one.
log4j-to-slf4j-2.3.jar正在将 log4j 调用发送回 slf4j。删除这个。
回答by LottaLava
Just in case, if you have logbackin your classpath, it must be removed as well!
以防万一，如果您的类路径中有logback，也必须将其删除！
