Question

在尝试在log4j2中使用JDBCAppender时，我遇到了一些异常。这是我得到的：

java.lang.AbstractMethodError: com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.isClosed()Z
at org.apache.logging.log4j.core.appender.db.jdbc.JDBCDatabaseManager.writeInternal(JDBCDatabaseManager.java:84)
at org.apache.logging.log4j.core.appender.db.AbstractDatabaseManager.write(AbstractDatabaseManager.java:159)
at org.apache.logging.log4j.core.appender.db.AbstractDatabaseAppender.append(AbstractDatabaseAppender.java:103)
at org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:97)
at org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:425)
at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:406)
at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:367)
at org.apache.logging.log4j.core.Logger.log(Logger.java:112)
at org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1032)
at org.apache.logging.log4j.Logger$info.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at co.trucktrack.util.LoggerTest.test(LoggerTest.groovy:22)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

你也可以找到我的log4j2.xml配置

<?xml version="1.0" encoding="UTF-8"?>

<Appenders>
    <Console name="Console" target="SYSTEM_OUT">
        <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} - %m%n"/>
    </Console>
    <JDBC name="dbAppender" tableName="_system.log" >
        <ConnectionFactory class="co.trucktrack.util.Log4jConnectionPool" method="getConnection" />
        <Column name="message" isUnicode="false" pattern="%message" />
    </JDBC>
</Appenders>
<Loggers>
    <Root level="info">
        <AppenderRef ref="dbAppender"/>
    </Root>
</Loggers>

我写了一个测试只是为了检查发生了什么以及当我尝试手动执行查询时它正常工作，但当我尝试记录某些内容时，我面临上述异常。看起来配置部分不好或什么的。有人可以帮忙吗？

由于

Answer 1

哦，快乐，经过几天的挖掘，我发现了这个问题。

好吧，我使用的是2.0-rc1版本的log4j，在我将其切换回2.0-beta9后，一切顺利。他们显然在新版本中引入了某种bug。

JDBCappender log4j2和postgres错误

1 个答案: