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配置_LogFilter

温绍锦 edited this page Sep 3, 2020 · 22 revisions

Druid内置提供了四种LogFilter(Log4jFilter、Log4j2Filter、CommonsLogFilter、Slf4jLogFilter),用于输出JDBC执行的日志。这些Filter都是Filter-Chain扩展机制中的Filter,所以配置方式可以参考这里:Filter配置

1. 别名映射

在druid-xxx.jar!/META-INF/druid-filter.properties文件中描述了这四种Filter的别名

  druid.filters.log4j=com.alibaba.druid.filter.logging.Log4jFilter
  druid.filters.log4j2=com.alibaba.druid.filter.logging.Log4j2Filter
  druid.filters.slf4j=com.alibaba.druid.filter.logging.Slf4jLogFilter
  druid.filters.commonlogging=com.alibaba.druid.filter.logging.CommonsLogFilter
  druid.filters.commonLogging=com.alibaba.druid.filter.logging.CommonsLogFilter

他们的别名分别是log4j、log4j2、slf4j、commonlogging和commonLogging。其中commonlogging和commonLogging只是大小写不同。

      <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
          init-method="init" destroy-method="close">
          ... ...
          <property name="filters" value="stat,log4j" />
      </bean>

或JVM启动参数配置,比如说

-Ddruid.filters=log4j"

2. loggerName配置

LogFilter都是缺省使用四种不同的Logger执行输出,看实现代码:

  public abstract class LogFilter {
      protected String          dataSourceLoggerName                 = "druid.sql.DataSource";
      protected String          connectionLoggerName                 = "druid.sql.Connection";
      protected String          statementLoggerName                  = "druid.sql.Statement";
      protected String          resultSetLoggerName                  = "druid.sql.ResultSet";
  }

你可以根据你的需要修改,在log4j.properties文件上做配置时,注意配置使用相关的logger。

3. 配置输出日志

缺省输入的日志信息全面,但是内容比较多,有时候我们需要定制化配置日志输出。

<bean id="log-filter" class="com.alibaba.druid.filter.logging.Log4jFilter">
    <property name="resultSetLogEnabled" value="false" />
</bean>

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
    ...
    <property name="proxyFilters">
        <list>
            <ref bean="log-filter"/>
        </list>
    </property>
</bean>
参数 说明
dataSourceLogEnabled 所有DataSource相关的日志
connectionLogEnabled 所有连接相关的日志
connectionLogErrorEnabled 所有连接上发生异常的日志
statementLogEnabled 所有Statement相关的日志
statementLogErrorEnabled 所有Statement发生异常的日志
resultSetLogEnabled
resultSetLogErrorEnabled
connectionConnectBeforeLogEnabled
connectionConnectAfterLogEnabled
connectionCommitAfterLogEnabled
connectionRollbackAfterLogEnabled
connectionCloseAfterLogEnabled
statementCreateAfterLogEnabled
statementPrepareAfterLogEnabled
statementPrepareCallAfterLogEnabled
statementExecuteAfterLogEnabled
statementExecuteQueryAfterLogEnabled
statementExecuteUpdateAfterLogEnabled
statementExecuteBatchAfterLogEnabled
statementCloseAfterLogEnabled
statementParameterSetLogEnabled
resultSetNextAfterLogEnabled
resultSetOpenAfterLogEnabled
resultSetCloseAfterLogEnabled

4. log4j.properties配置

如果你使用log4j,可以通过log4j.properties文件配置日志输出选项,例如:

  log4j.logger.druid.sql=warn,stdout
  log4j.logger.druid.sql.DataSource=warn,stdout
  log4j.logger.druid.sql.Connection=warn,stdout
  log4j.logger.druid.sql.Statement=warn,stdout
  log4j.logger.druid.sql.ResultSet=warn,stdout

5. 输出可执行的SQL

Java启动参数配置方式

  -Ddruid.log.stmt.executableSql=true

logFilter参数直接配置

  <bean id="log-filter" class="com.alibaba.druid.filter.logging.Log4jFilter">
        <property name="statementExecutableSqlLogEnable" value="true" />
  </bean>
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