log4j对象改变日志级别

 

log4j对象改变日志级别可批量的改变所有级别，或是根据条件改变日志级别。 

log4j配置文件： 

Xml代码  

1. log4j.rootLogger=ERROR,FILE,CONSOLE,EXECPTION  
2.    
3. #log4j.appender.FILE=org.apache.log4j.RollingFileAppender  
4. log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender  
5. log4j.appender.FILE.File=${catalina.home}/logs/boss.log  
6. log4j.appender.CONSOLE.Threshold=DEBUG  
7. log4j.appender.FILE.Encoding=utf-8  
8. #log4j.appender.FILE.MaxFileSize=10MB  
9. #log4j.appender.FILE.MaxBackupIndex=100  
10. log4j.appender.FILE.layout=org.apache.log4j.PatternLayout  
11. log4j.appender.FILE.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss,SSS}][%t][%l][%p]: %m%n  
12.   
13. log4j.appender.EXECPTION=org.apache.log4j.DailyRollingFileAppender  
14. log4j.appender.EXECPTION.File=${catalina.home}/logs/error.log  
15. log4j.appender.EXECPTION.Threshold=ERROR  
16. log4j.appender.EXECPTION.Encoding=utf-8  
17. #log4j.appender.EXECPTION.MaxFileSize=10MB  
18. #log4j.appender.EXECPTION.MaxBackupIndex=100  
19. log4j.appender.EXECPTION.layout=org.apache.log4j.PatternLayout  
20. log4j.appender.EXECPTION.layout.ConversionPattern=[%d{yyyy-MM-dd HH:mm:ss,SSS}][%t][%l][%p]: %m%n  
21.   
22. log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender  
23. log4j.appender.CONSOLE.Target=System.out  
24. log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout  
25. log4j.appender.CONSOLE.layout.ConversionPattern=[%d{HH:mm:ss,SSS}][%-5p][%t][%M] (%F:%L) - %m%n  
26.   
27. log4j.appender.Requests=org.apache.log4j.RollingFileAppender  
28. log4j.appender.Requests.File=${catalina.home}/logs/jotm.log  
29. log4j.appender.Requests.MaxFileSize=100MB  
30. log4j.appender.Requests.MaxBackupIndex=5  
31. log4j.appender.Requests.Encoding=utf-8  
32. log4j.appender.Requests.layout=org.apache.log4j.PatternLayout  
33. log4j.appender.Requests.layout.ConversionPattern=%10r [%-5c{1}] %7p - %C{1}.%M(%L) : %m\n  
34.   
35. #c3p0  
36. log4j.logger.com.mchange.v2=ERROR  
37. log4j.logger.com.opensymphony=ERROR  
38. log4j.logger.org.apache=ERROR  
39. log4j.logger.org.springframework=ERROR  
40. log4j.logger.freemarker.cache=ERROR  
41.   
42. #SqlMap logging configuration...  
43. #DEBUG < INFO < WARN < ERROR < FATAL#  
44. log4j.logger.com.miri.boss=DEBUG  
45.   
46. log4j.logger.com.ibatis=ERROR  
47. log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=ERROR  
48. log4j.logger.com.ibatis.common.jdbc.ScriptRunner=ERROR  
49. log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=ERROR  
50.   
51. #log4j.logger.java.sql=INFO  
52. log4j.logger.java.sql.Statement=ERROR  
53. log4j.logger.java.sql.ResultSet=ERROR  
54. log4j.logger.java.sql.PreparedStatement=ERROR  
55.   
56. #json  
57. log4j.org.apache.struts2=ERROR  
58. log4j.logger.org.apache.struts2.json=ERROR  
59.   
60. #ecside  
61. log4j.logger.org.ecside.core.TableModelUtils=ERROR  
62.   
63. # JOTM #  
64. log4j.logger.org.objectweb.jotm=ERROR, Requests  
65. log4j.additivity.org.objectweb.jotm=false  
66.   
67. log4j.logger.org.objectweb.jotm.jta=ERROR, Requests  
68. log4j.additivity.org.objectweb.jotm.jta=false  
69.   
70. log4j.logger.org.objectweb.jotm.recovery=ERROR, Requests  
71. log4j.additivity.org.objectweb.jotm.recovery=false  
72.   
73. log4j.logger.org.objectweb.jotm.tests=ERROR, Requests  
74. log4j.additivity.org.objectweb.jotm.tests=false  
75.   
76. # CAROL #  
77. log4j.logger.org.objectweb.carol=ERROR, Requests  
78. log4j.additivity.org.objectweb.carol=false  
79.   
80. log4j.logger.org.objectweb.carol.rmi=ERROR, Requests  
81. log4j.additivity.org.objectweb.carol.rmi=false  
82.   
83. log4j.logger.org.objectweb.carol.jndi=ERROR, Requests  
84. log4j.additivity.org.objectweb.carol.jndi=false  

1、批量的改变所有日志对象的日志级别： 

Java代码  

1. //value日志级别eroor、info、debug等  
2. public void test(String value){  
3. final String sArg = LogManager.getRootLogger().getLevel().toString();  
4.                     if (!sArg.equals(value))  
5.                     {  
6. //设置日志级别  
7.                         final Level level = Level.toLevel(value);  
8. //设置根日志级别  
9.                         LogManager.getRootLogger().setLevel(level);  
10.   
11. //获取配置文件中的所有log4j对象  
12.                         final Enumeration<org.apache.log4j.Logger> logs = LogManager.getCurrentLoggers();  
13.                         while (logs.hasMoreElements())  
14.                         {  
15.                             final org.apache.log4j.Logger logger = logs.nextElement();  
16. //给log4j对象设置级别    
17.                             logger.setLevel(level);  
18.                         }  
19.                     }  
20. ｝  

2、根据log4j对象的名称改变日志级别，名称将会和配置文件中的名称匹配，匹配上的对象设置日志级别。 

Java代码  

1. //value日志级别eroor、info、debug等  
2. public void test(String value){  
3.   
4. final String sArg = LogManager.getRootLogger().getLevel().toString();  
5.                     if (!sArg.equals(value))  
6.                     {  
7.                         final Level level = Level.toLevel(value);  
8.                         LogManager.getRootLogger().setLevel(level);  
9.                         final Enumeration<org.apache.log4j.Logger> logs = LogManager.getCurrentLoggers();  
10.                         while (logs.hasMoreElements())  
11.                         {  
12.                             final org.apache.log4j.Logger logger = logs.nextElement();  
13.                             final String loggerName = logger.getName();  
14.                             // 匹配调整部分logger  
15.                             if (loggerName.contains("java.sql") || loggerName.contains("com.miri.boss")  
16.                                     || loggerName.contains("com.ibatis"))  
17.                             {  
18.                                 logger.setLevel(level);  
19.                             }  
20.                         }  
21.                     }  
22. ｝  

上面的匹配条件将会匹配到日志配置文件中的： 

Xml代码  

1. log4j.logger.com.miri.boss=DEBUG  
2.   
3. log4j.logger.com.ibatis=ERROR  
4. log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=ERROR  
5. log4j.logger.com.ibatis.common.jdbc.ScriptRunner=ERROR  
6. log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=ERROR  
7.   
8. #log4j.logger.java.sql=INFO  
9. log4j.logger.java.sql.Statement=ERROR  
10. log4j.logger.java.sql.ResultSet=ERROR  
11. log4j.logger.java.sql.PreparedStatement=ERROR