a:focus {
outline: thin dotted #333;
outline: 5px auto -webkit-focus-ring-color;
outline-offset: -2px;
}
a:hover {
outline: 0;
}
a:active {
outline: 0;
}
a:hover {
color: #005580;
text-decoration: underline;
}
blockquote small:before {
content: ‘\2014 \00A0‘;
}
q:before {
content: "";
}
q:after {
content: "";
}
blockquote:before {
content: "";
}
blockquote:after {
content: "";
}
mybatis日志的使用问题：
mybatis
spring
log4j
在使用mybatis的时候，经常会遇到日志无法输出的问题；今天解决这个问题；
1、仅使用mybatis的时候如何输出：
一般单独使用mybatis+junit的时候会使用到日志的输出，使用是需要添加下面的代码：
org.apache.ibatis.logging.LogFactory.useStdOutLogging();
使用示例：
@Test
public void testCondition(){
try {
//如果想在控制台中输出日志的内容，那么必须添加上这句话
org.apache.ibatis.logging.LogFactory.useStdOutLogging();
Reader reader = Resources.getResourceAsReader("mybatis-config.xml");
SqlSessionFactory sqlSessionFactory = new SqlSessionFactoryBuilder()
.build(reader);
reader.close();
SqlSession session = null;
session = sqlSessionFactory.openSession();
StudentMapper studentMapper = (StudentMapper) session.getMapper(StudentMapper.class);
StudentExample studentExample = new StudentExample();
GeneratedCriteria generatedCriteria = studentExample.createCriteria();
generatedCriteria.addCriterion("1=1");
List<Student> student = studentMapper.selectByExample(studentExample);
for (Student student2 : student) {
System.out.println(student2.getName());
}
} catch (IOException e) {
e.printStackTrace();
}
}
运行查看输入的结果：
Logging initialized using 'org.apache.ibatis.logging.stdout.StdOutImpl' >adapter.
PooledDataSource forcefully closed/removed all connections.
PooledDataSource forcefully closed/removed all connections.
PooledDataSource forcefully closed/removed all connections.
PooledDataSource forcefully closed/removed all connections.
Openning JDBC Connection
Created connection 33431531.
ooo Using Connection [[email protected]]
> Preparing: select id, name, gender, major, grade, supervisor_id from student WHERE ( 1=1 )
> Parameters:
< Columns: id, name, gender, major, grade, supervisor_id
< Row: 1, 李林, 男, 计算机科学与技术, 2011, 1
<== Row: 2, 陈明, 男, 软件技术, 2012, 1
<== Row: 4, 陈明2, 男, 软件技术, 2012, 2
李林
陈明
陈明2
同时在log4j.properties文件的配置信息如下：
# Global logging configuration
log4j.rootLogger=debug
# MyBatis logging configuration...
log4j.logger.org.mybatis.example=DEBUG
# Console output...
### Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n
2、和spring配合使用时，日志的输出内容
spring+mybatis时输入的配置文件内容为：
## set log levels ###
#log4j.rootLogger = debug , stdout , D , E
log4j.rootLogger = debug , stdout , D
### output to the console ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
#log4j.appender.stdout.layout.ConversionPattern = %d{ABSOLUTE} %5p %c{ 1 }:%L - %m%n
log4j.appender.stdout.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [%c]-[%p] %m%n
### Output to the log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ${springmvc.root}/WEB-INF/logs/error.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = ERROR
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} [ %t:%r ] - [ %p ] %m%n