spring boot +log4j

首先新建log4j.properties

log4j.rootLogger=info,ServerDailyRollingFile,stdout

log4j.appender.ServerDailyRollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ServerDailyRollingFile.DatePattern='.'yyyy-MM-dd
log4j.appender.ServerDailyRollingFile.File=H:/IDEAworkspace/risktech_1/src/main/resources/templates/risktech.log
log4j.appender.ServerDailyRollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.ServerDailyRollingFile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [%t] %-5p [%c] - %m%n
log4j.appender.ServerDailyRollingFile.Append=true

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d  %p [%c] %m%n


#mybatis
log4j.logger.org.mybatis=DEBUG
log4j.logger.com.risktech.web.mapper=DEBUG
log4j.logger.java.sql.Connection=DEBUG    
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

然后引入maven包：

        <properties>
            <java.version>1.8</java.version>
            <!-- log4j日志文件管理包版本 -->
            <slf4j.version>1.8.0-alpha2</slf4j.version>
            <log4j.version>1.2.17</log4j.version>
        </properties>
        <!-- 日志文件管理包 -->
        <!-- log start -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <!-- 格式化对象，方便输出日志 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${slf4j.version}</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${slf4j.version}</version>
        </dependency>
        <!-- log end -->

然后就ok了