慢SQL日志记录。
1.applicationContext.xml中增加如下配置：
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<bean abstract="true" id="mysql_database" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close"> <!-- 监控统计拦截的filters,日志记录 edited by zhangpl 20140824 start --> <!-- 并在filters属性中配置了log4j --> <property name="proxyFilters"> <list> <ref bean="stat-filter" /> <ref bean="log-filter" /> </list> </property> <!-- 监控统计拦截的filters,日志记录 edited by zhangpl 20140824 end --> <property name="filters"> <value>stat,wall,log4j</value> </property> <!-- 其它基本配置略...--> </bean> <!-- 慢SQL记录 edited by zhangpl 20140824 start--> <bean id="stat-filter" class="com.alibaba.druid.filter.stat.StatFilter"> <property name="mergeSql" value="true" /> <property name="slowSqlMillis" value="1000" /> <property name="logSlowSql" value="true" /> </bean> <bean id="log-filter" class="com.alibaba.druid.filter.logging.Log4jFilter"> <!-- <property name="resultSetLogEnabled" value="false" /> --> <!-- <property name="statementExecutableSqlLogEnable" value="true" /> --> </bean> <!-- 慢SQL记录 edited by zhangpl 20140824 end--> |
2.log4j.properties中配置如下：
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log4j.rootLogger=warn,A1,A2 #1.打印druid连接池SQL语句，info级别的语句打印到info_slowsql.log，warn级别语句打印到warn_slowlog.log； #2.将日志写到文件中； # Druid log4j.logger.druid.sql=info,A1,A2 log4j.logger.druid.sql.DataSource=info,A1,A2 log4j.logger.druid.sql.Connection=info,A1,A2 log4j.logger.druid.sql.Statement=info,A1,A2 log4j.logger.druid.sql.ResultSet=info,A1,A2 log4j.appender.A1=org.apache.log4j.DailyRollingFileAppender log4j.appender.A1.File=../druid-logs/info_slowsql.log log4j.appender.A1.DatePattern='.'yyyy-MM-dd #log4j.appender.A1.File=${catalina.home}/logs/info_slowsql.log #log4j.appender.A1.File=${WebApp.TomcatHome}/logs/info_slowsql.log log4j.appender.A1.ImmediateFlush=true log4j.appender.A1.Append=true log4j.appender.A1.Threshold=info log4j.appender.A1.layout=org.apache.log4j.PatternLayout log4j.appender.A1.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss}] [%p] [%c] - %m%n log4j.appender.A2=org.apache.log4j.DailyRollingFileAppender log4j.appender.A2.File=../druid-logs/warn_slowsql.log log4j.appender.A2.DatePattern='.'yyyy-MM-dd #log4j.appender.A2.File=${catalina.home}/logs/warn_slowsql.log #log4j.appender.A2.File=${WebApp.TomcatHome}/logs/warn_slowsql.log log4j.appender.A2.ImmediateFlush=true log4j.appender.A2.Append=true log4j.appender.A2.Threshold=warn log4j.appender.A2.layout=org.apache.log4j.PatternLayout log4j.appender.A2.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss}] [%p] [%c] - %m%n |
经过上面的配置，就会在文件中打印，如下的慢SQL语句：
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...... [2014-08-26 11:12:59] [ERROR] [com.alibaba.druid.filter.stat.StatFilter] - slow sql 3121 millis. select count(1) from person where schoolid=? and isDeleted=0 and GET_FIRST_PINYIN_CHAR(username) =? ["145","a"] ...... |
有问题欢迎指正，可参考官方文档，以官方文档为准。
