springboot项目mybatis日志自定义设置无法生效

悠悠 2021-09-23 10:22 859阅读 0赞

springboot项目mybatis日志自定义设置无法生效，就是无法设置日志级别，无法对`java.sql.PreparedStatement`、`java.sql.Connection`等进行设置。

翻了spring和mybatis官网以及几十篇文章都没找到一个好使的方法，大概是项目中有什么奇怪的冲突的原因吧，不准备找了，直接自定义日志搞起。

yml中的mybatis配置

mybatis:
      mapper-locations: classpath:/mapper/*/*xml
      configuration:
        #log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
        log-impl: testMavenWeb.log.CustomLog
        jdbcTypeForNull: VARCHAR

CustomLog是实现org.apache.ibatis.logging.Log接口的自定义日志类。

先来复习一下日志类时这么运行的，下面是CustomLog代码

import org.apache.ibatis.logging.Log;
    
    public class CustomLog implements Log { 
    
    	public CustomLog(String clazz) { 
    		// Do Nothing
    	}
    
    	@Override
    	public boolean isDebugEnabled() { 
    		return true;
    	}
    
    	@Override
    	public boolean isTraceEnabled() { 
    		return true;
    	}
    
    	@Override
    	public void error(String s, Throwable e) { 
    		System.err.println(s);
    		e.printStackTrace(System.err);
    	}
    
    	@Override
    	public void error(String s) { 
    		System.out.println("mylog error");
    		System.err.println(s);
    	}
    
    	@Override
    	public void debug(String s) { 
    		System.out.println("mylog debug");
    		System.out.println(s);
    	}
    
    	@Override
    	public void trace(String s) { 
    		System.out.println("mylog trace");
    		System.out.println(s);
    	}
    
    	@Override
    	public void warn(String s) { 
    		System.out.println("mylog warn");
    		System.out.println(s);
    	}
    }

sql代码

现在我后台的日志是这样的

mylog debug
    Creating a new SqlSession
    mylog debug
    SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@26a8b664] was not registered for synchronization because synchronization is not active
    mylog debug
    JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@22972669] will not be managed by Spring
    mylog debug
    ==>  Preparing: select level || ? lv from dual connect by level <= 20 
    mylog debug
    ==> Parameters: ddd(String)
    mylog trace
    <==    Columns: LV
    mylog trace
    <==        Row: 1ddd
    mylog trace
    <==        Row: 2ddd
    mylog trace
    <==        Row: 3ddd
    mylog trace
    <==        Row: 4ddd
    mylog trace
    <==        Row: 5ddd
    mylog trace
    <==        Row: 6ddd
    mylog trace
    <==        Row: 7ddd
    mylog trace
    <==        Row: 8ddd
    mylog trace
    <==        Row: 9ddd
    mylog trace
    <==        Row: 10ddd
    mylog trace
    <==        Row: 11ddd
    mylog trace
    <==        Row: 12ddd
    mylog trace
    <==        Row: 13ddd
    mylog trace
    <==        Row: 14ddd
    mylog trace
    <==        Row: 15ddd
    mylog trace
    <==        Row: 16ddd
    mylog trace
    <==        Row: 17ddd
    mylog trace
    <==        Row: 18ddd
    mylog trace
    <==        Row: 19ddd
    mylog trace
    <==        Row: 20ddd
    mylog debug
    <==      Total: 20
    mylog debug
    Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@26a8b664]

剩下的就简单了，比如我如果想要屏蔽`ResultSet`，则只需要屏蔽`trace` 中的代码即可

@Override
    	public void trace(String s) { 
    		//System.out.println("mylog trace");
    		//System.out.println(s);
    	}

现在这个日志设置已经够用，日后需要时再做完善吧。