druid 打印 sql

关注：

SimpleJpaRepository

org.hibernate.internal.SessionImpl

DruidPooledPreparedStatement

com.alibaba.druid.filter.logging.LogFilter

private void logExecutableSql(StatementProxy statement, String sql) {
        if (this.isStatementExecutableSqlLogEnable()) {
            int parametersSize = statement.getParametersSize();
            if (parametersSize == 0) {
                this.statementLog("{conn-" + statement.getConnectionProxy().getId() + ", " + this.stmtId(statement) + "} executed. \n" + sql);
            } else {
                List<Object> parameters = new ArrayList(parametersSize);

                for(int i = 0; i < parametersSize; ++i) {
                    JdbcParameter jdbcParam = statement.getParameter(i);
                    parameters.add(jdbcParam.getValue());
                }

                String dbType = statement.getConnectionProxy().getDirectDataSource().getDbType();
                String formattedSql = SQLUtils.format(sql, dbType, parameters);
                this.statementLog("{conn-" + statement.getConnectionProxy().getId() + ", " + this.stmtId(statement) + "} executed. \n" + formattedSql);
            }
        }
    }

 

druid 打印 sql：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       " >

    <!--主数据源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close" primary="true" >
        <!-- 基本属性 url、user、password -->
        <property name="url" value="${datasource.url}" />
        <property name="username" value="${datasource.username}" />
        <property name="password" value="${datasource.password}" />

        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="10" />
        <property name="minIdle" value="10" />
        <property name="maxActive" value="20" />

        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000" />

        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000" />

        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="300000" />

        <property name="validationQuery" value="SELECT 1 " />
        <property name="testWhileIdle" value="true" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />

        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
        <property name="poolPreparedStatements" value="true" />
        <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />

        <!-- 配置监控统计拦截的filters，去掉后监控界面sql无法统计 -->
        <property name="filters" value="stat,wall,log4j"/>
        <property name="proxyFilters">
            <list>
                <ref bean="log-filter"/>
            </list>
        </property>
    </bean>

    <bean id="log-filter" class="com.alibaba.druid.filter.logging.Slf4jLogFilter">
        <property name="connectionLogEnabled" value="true"/>
        <property name="statementLogEnabled" value="true"/>
        <property name="resultSetLogEnabled" value="true"/>
        <property name="statementExecutableSqlLogEnable" value="true"/>
    </bean>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

</beans>

 springboot 的application.properties 中配置

spring.datasource.druid.connectionProperties=druid.stat.mergeSql=true;druid.stat.logSlowSql=true;druid.stat.slowSqlMillis=5000;druid.log.stmt.executableSql=true;druid.log.stmt=true;druid.log.rs=true;druid.log.stmt.executableSql=true

参考：

com.alibaba.druid.filter.logging.LogFilter

    public LogFilter(){
        configFromProperties(System.getProperties());
    }