Java Logback DBAppender的调用者文件名为空
使用Java Logback DBAppender的调用者文件名为空,java,mysql,jndi,logback,context.xml,Java,Mysql,Jndi,Logback,Context.xml,使用logback-1.0.13.jar和JDK1.6u34 我有一个Java web应用程序(WAR),具有以下web-INF/classes/logback.xml: <configuration debug="true" scan="true" scanPeriod="5 minutes"> <appender name="logManager-dbAppender" class="ch.qos.logback.classic.db.DBAppender">
logback-1.0.13.jar
和JDK1.6u34
我有一个Java web应用程序(WAR),具有以下web-INF/classes/logback.xml
:
<configuration debug="true" scan="true" scanPeriod="5 minutes">
<appender name="logManager-dbAppender" class="ch.qos.logback.classic.db.DBAppender">
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>INFO</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>NEUTRAL</onMismatch>
</filter>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>WARN</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>NEUTRAL</onMismatch>
</filter>
<filter class="ch.qos.logback.classic.filter.LevelFilter">
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
<connectionSource class="ch.qos.logback.core.db.JNDIConnectionSource">
<jndiLocation>java:comp/env/jdbc/dbLogging-local</jndiLocation>
</connectionSource>
</appender>
<root level="ALL">
<appender-ref ref="logManager-dbAppender" />
</root>
</configuration>
并在我的运行时类路径上的WEB-INF/lib/mysql-jdbc-5.1.25.jar
)。此外,因为这是一个全局的context.xml
,所以我还有相同的MySQL/JDBC驱动程序,位于${TOMCAT_HOME}
/lib
我得到了以下堆栈跟踪:
08:54:52,905 |-ERROR in ch.qos.logback.classic.db.DBAppender[logManager-dbAppender] - problem appending event com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'caller_filename' cannot be null
at com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'caller_filename' cannot be null
at at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at at com.mysql.jdbc.Util.getInstance(Util.java:386)
at at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1040)
at at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096)
at at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028)
at at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490)
at at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651)
at at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2734)
at at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)
at at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2458)
at at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2375)
at at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2359)
at at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105)
at at org.apache.tomcat.dbcp.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:105)
at at ch.qos.logback.classic.db.DBAppender.subAppend(DBAppender.java:105)
at at ch.qos.logback.classic.db.DBAppender.subAppend(DBAppender.java:42)
at at ch.qos.logback.core.db.DBAppenderBase.append(DBAppenderBase.java:108)
at at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:88)
at at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:48)
at at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:272)
at at ch.qos.logback.classic.Logger.callAppenders(Logger.java:259)
at at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:441)
at at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:395)
at at ch.qos.logback.classic.Logger.info(Logger.java:599)
at at com.myapp.server.DummyServlet.doGet(Unknown Source)
at at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at at java.lang.Thread.run(Thread.java:662)
关于为什么我会出现MySQL异常,有什么想法吗?我在Old Nabble上发现了,我想知道这是否是一个长期存在的bug
它似乎正在连接到我的MySQL服务器并插入一个空日志记录\u事件。当(根据Logback DBAppender的onw DDL)该列上不允许空值时,调用者\u文件名
提前谢谢 我在PostgreSQL和logback 1.0.7以及slf4j 1.6.6上也遇到过类似的问题 不知何故,似乎并没有“始终”传递调用方信息,这导致了这个问题,这反过来意味着相关的日志调用不会对数据库进行调用(如果在logback配置中没有debug=“true”,您甚至不知道它) 作为虚拟解析,可以放松日志表中的数据库列约束(不需要调用方列中的“NOTNULL”)。然而,在我的例子中,我发现如何在代码中构造记录器实例很重要:这导致了上述失败
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
Logger log = LoggerFactory.getLogger(My.class);
这样做效果很好(即填写了呼叫者信息)
但我无法解释
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
Logger log = LoggerFactory.getLogger(My.class);
Logger log = LoggerFactory.getLogger(My.class.getName());