记录druid整合springboot+logback配置打印sql日志

整合记录

首先看 druid 的LogFilter 为我们准备的四种logger类型

这些logger分别对应打印 datasource相关、connection相关、statement相关、resultSet相关的日志

你需要在你的logback.xml中加入一个logger，这里我只加了statement相关的logger 为了打印可执行的sql

你可以全搞上 比如这样

再看 LogFilter 打印日志主要使用以下方法

在LogFilter实现类(也就是Slf4jLogFilter、Log4jFilter、Log4j2Filter、CommonsLogFilter)中 实现了这些抽象方法

好了 看到了 使用debug和error来打印日志。在你使用的日志组件中将打印级别调成debug以上就可以了
这里 我单独用了一个logger 原因如下

是springboot 启动时将root的level调成DEBUG将打印很多日志我不想要这些日志，所以修改了日志级别，这样导致级别过高，druid的日志信息打不出来。因此 单独配置一个logger来记录，效果如下

完整的logback.xml如下

<configuration debug="true">

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
      
      <encoder>
        <pattern>[%d{HH:mm:ss}] %-4relative [%thread] %-5level %logger{50} - %msg %npattern>
      encoder>
    appender>
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
      
      <prudent>trueprudent>
      <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
        <fileNamePattern>/storagelogs1111/storage_log_%d{yyyy-MM-dd}.logfileNamePattern>
        <maxHistory>60maxHistory> 
        <totalSizeCap>20GBtotalSizeCap>
      rollingPolicy>
      <encoder>
        <pattern>[%d{HH:mm:ss}] %-4relative [%thread] %-5level %logger{50} - %msg %npattern>
      encoder>
    appender> 
    <logger name="com.helper.util" level="ERROR">
      
    logger>
    <logger name="druid.sql.Statement" level="debug">
    logger>
    <logger name="druid.sql.DataSource" level="debug">
    logger>
    <logger name="druid.sql.Connection" level="debug">
    logger>
    <logger name="druid.sql.ResultSet" level="debug">
    logger>
    <root level="INFO">
      <appender-ref ref="STDOUT" />
      <appender-ref ref="FILE" />
    root>
  configuration>

druid 的配置(使用java 注解形式 也可以使用xml形式)

package com.helper.config;

import java.sql.SQLException;
import java.util.Arrays;
import java.util.List;

import javax.sql.DataSource;

import com.alibaba.druid.filter.Filter;
import com.alibaba.druid.filter.logging.Slf4jLogFilter;
import com.alibaba.druid.pool.DruidDataSource;
import com.helper.util.Tools;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;

@Configuration
@PropertySource(value = { "classpath:testdb.properties" })
@ComponentScan("com.helper.*")
public class DBconfig {

    private static final Logger LOG = LoggerFactory.getLogger(DBconfig.class);
    @Value("${test.val1}")
    private String val1;
    @Value("${test.val2}")
    private String val2;
    @Value("${test.val3}")
    private String val3;

    @Value("${druid.jdbc.url}")
    private String url;
    @Value("${druid.jdbc.user}")
    private String user;
    @Value("${druid.jdbc.password}")
    private String password;

    @Value("${druid.jdbc.filters}")
    private String filters;

    @Bean(initMethod = "init", destroyMethod = "close")
    public DataSource getDataSource() {
        // try {
            DruidDataSource dataSource = new DruidDataSource();
            dataSource.setUrl(url);
            dataSource.setUsername(user);
            dataSource.setPassword(password);
            //注意 注意 注意 使用了 dataSource.setProxyFilters() 这里再放filters会重复打印 这里直接不用了
            //dataSource.setFilters(filters);
            dataSource.setMaxActive(20);
            dataSource.setInitialSize(1);
            dataSource.setMaxWait(60000);
            dataSource.setMinIdle(1);
            dataSource.setTimeBetweenEvictionRunsMillis(60000);
            dataSource.setMinEvictableIdleTimeMillis(300000);
            dataSource.setTestWhileIdle(true);
            dataSource.setTestOnBorrow(false);
            dataSource.setTestOnReturn(false);
            dataSource.setPoolPreparedStatements(true);
            dataSource.setMaxOpenPreparedStatements(20);
            dataSource.setAsyncInit(true);


            Slf4jLogFilter logFilter = new Slf4jLogFilter();
            logFilter.setStatementExecutableSqlLogEnable(true);
            logFilter.setStatementLogEnabled(true);
            List<Filter> filterList = Arrays.asList(logFilter);
            dataSource.setProxyFilters(filterList);
            return dataSource;
        // } catch (SQLException e) {
        //     LOG.info(" init datasource occure error, message :{} ", e.getMessage());
        // }
        // return null;
    }

    @Bean
    public JdbcTemplate getJdbcTemplate() {
        return new JdbcTemplate(getDataSource());
    }

    @Bean
    public NamedParameterJdbcTemplate getNamedJdbcTemplate() {
        return new NamedParameterJdbcTemplate(getDataSource());
    }

    @Bean
    public Tools testObject() {
        LOG.info(" val1: {} ,val2 : {} ,val3 : {} ", val1, val2, val3);
        return new Tools();
    }

}

有什么不对的地方请大家指正，谢谢

附上druid相关链接
常见问题
https://github.com/alibaba/druid/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98
数据源默认配置
https://github.com/alibaba/druid/wiki/DruidDataSource%E9%85%8D%E7%BD%AE
配置_LogFilter
https://github.com/alibaba/druid/wiki/%E9%85%8D%E7%BD%AE_LogFilter
logback logger配置详解
http://logback.qos.ch/manual/configuration.html