使用logback-1.0.13.jar.
用于创建所需表的 DDL 脚本DBAppender位于该 JAR 内：
logback-1.0.13/logback-access/src/main/java/ch/qos/logback/ access /db/script/mysql.sql
这个文件的内容是：
# Logback: the reliable, generic, fast and flexible logging framework.
# Copyright (C) 1999-2010, QOS.ch. All rights reserved.
#
# See http://logback.qos.ch/license.html for the applicable licensing
# conditions.
# This SQL script creates the required tables by ch.qos.logback.access.db.DBAppender.
#
# It is intended for MySQL databases. It has been tested on MySQL 5.0.22 with
# INNODB tables.
BEGIN;
DROP TABLE IF EXISTS access_event_header;
DROP TABLE IF EXISTS access_event;
COMMIT;
BEGIN;
CREATE TABLE ACCESS_EVENT
(
timestmp BIGINT NOT NULL,
requestURI VARCHAR(254),
requestURL VARCHAR(254),
remoteHost VARCHAR(254),
remoteUser VARCHAR(254),
remoteAddr VARCHAR(254),
protocol VARCHAR(254),
method VARCHAR(254),
serverName VARCHAR(254),
postContent VARCHAR(254),
event_id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY
);
COMMIT;
BEGIN;
CREATE TABLE access_event_header
(
event_id BIGINT NOT NULL,
header_key VARCHAR(254) NOT NULL,
header_value VARCHAR(1024),
PRIMARY KEY(event_id, header_key),
FOREIGN KEY (event_id) REFERENCES access_event(event_id)
);
COMMIT;
我在我的 MySQL 服务器上运行了这个脚本，它成功执行，创建了 access_event表access_event_header。
我的logback-test.xml配置：
<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.DriverManagerConnectionSource">
<driverClass>com.mysql.jdbc.Driver</driverClass>
<url>jdbc:mysql://mysql.server.example.com:3306/my_db</url>
<user>my_user</user>
<password>my_password</password>
</connectionSource>
</appender>
<root level="ALL">
<appender-ref ref="logManager-dbAppender" />
</root>
</configuration>
我使用 Logback 的 Java 驱动程序：
public class LogbackTester {
private Logger logger = LoggerFactory.getLogger(LogbackTester.class);
public static void main(String[] args) {
LogbackTester tester = new LogbackTester();
tester.run();
}
private void run() {
logger.debug("Logging a DEBUG message.");
logger.trace("Logging a TRACE message.");
logger.info("Logging an INFO message.");
logger.warn("Logging a WARN message.");
logger.error("Logging an ERROR message.");
}
}
当那个 Java 执行时，我得到这个控制台输出：
22:09:55,266 |-ERROR in ch.qos.logback.classic.db.DBAppender[logManager-dbAppender] - problem appending event com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'my_db.logging_event' doesn't exist
at com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'my_db.logging_event' doesn't exist
at at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
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:1053)
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 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.error(Logger.java:542)
at at com.dummylandapp.server.LogbackTester.run(LogbackTester.java:19)
at at com.dummylandapp.server.LogbackTester.main(LogbackTester.java:11)
为什么要找logging_event桌子？1.0.13 是否附带了错误的 DDL 脚本？如果是这样，与 1.0.13 一起使用的正确 DDL 是什么DBAppender？