log4j.xml 日志文件配置

谁践踏了优雅 2022-08-23 00:34 216阅读 0赞

一个完整的xml配置文件（propertities文件功能不全，不能使用过滤器，并且个人认为xml格式比较清晰，易读）。

附带测试程序。

1.  **import** java.net.URL;  
2.    
3.  **import** org.apache.log4j.xml.DOMConfigurator;  
4.    
5.  /\*\* 
6.   \* 单实例 读取log4j配置文件，初始化log4j 
7.   \*  
8.   \*/  
9.  **public** **class** Log4jXMLConfig  
10. \{  
11.     **private** **static** Log4jXMLConfig instance;  
12.   
13.     **public** **static** **synchronized** Log4jXMLConfig initia()  
14.     \{  
15.         **if** (instance == **null**)  
16.         \{  
17.             **return** **new** Log4jXMLConfig();  
18.         \}  
19.         **return** instance;  
20.     \}  
21.   
22.     **private** Log4jXMLConfig()  
23.     \{  
24.         **final** URL url = Log4jXMLConfig.**class**.getResource("log4j.xml");  
25.         DOMConfigurator.configure(url);  
26.     \}  
27. \}

import java.net.URL;import org.apache.log4j.xml.DOMConfigurator;/** * 单实例 读取log4j配置文件，初始化log4j *  */public class Log4jXMLConfig{    private static Log4jXMLConfig instance;    public static synchronized Log4jXMLConfig initia()    {        if (instance == null)        {            return new Log4jXMLConfig();        }        return instance;    }    private Log4jXMLConfig()    {        final URL url = Log4jXMLConfig.class.getResource("log4j.xml");        DOMConfigurator.configure(url);    }}

1.  <?xml version="1.0" encoding="UTF-8" ?>  
2.  <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">  
3.    
4.  <log4j:configuration>  
5.    
6.   <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">  
7.    <layout class="org.apache.log4j.PatternLayout">  
8.     <param name="ConversionPattern"  
9.      value="%d - %c -%-4r \[%t\] %-5p %x - %m%n" />  
10.   </layout>  
11.     
12.     
13.   <filter class="org.apache.log4j.varia.LevelRangeFilter">  
14.    <param name="LevelMax" value="ERROR"/>  
15.    <param name="LevelMin" value="TRACE"/>  
16.   </filter>  
17.  </appender>  
18.    
19.  <appender name="FILE" class="org.apache.log4j.FileAppender">  
20.   <param name="File" value="C:/log4j1.log"/>  
21.   <layout class="org.apache.log4j.PatternLayout">  
22.    <param name="ConversionPattern"  
23.     value="%d - %c -%-4r \[%t\] %-5p %x - %m%n" />  
24.   </layout>  
25.  </appender>   
26.    
27.  <appender name="DATABASE" class="org.apache.log4j.jdbc.JDBCAppender">  
28.   <param name="URL" value="jdbc:oracle:thin:@192.168.0.59:1521:oanet"/>  
29.   <param name="driver" value="oracle.jdbc.driver.OracleDriver"/>  
30.   <param name="user" value="hdczoa"/>  
31.   <param name="password" value="system"/>      
32.   <layout class="org.apache.log4j.PatternLayout">  
33.    <param name="ConversionPattern"  
34.     value="INSERT INTO hdczoa.LOG4J(stamp,thread, info\_level,class,message) VALUES ('%d', '%t', '%p', '%c', %m)" />  
35.   </layout>  
36.  </appender>  
37.    
38.    
39.  <appender name="MAIL"  
40.   class="org.apache.log4j.net.SMTPAppender">  
41.   <param name="threshold" value="debug" />  
42.     
45.     
46.   <param name="BufferSize" value="512" />  
47.   <param name="From" value="test@163.com" />  
48.   <param name="SMTPHost" value="smtp.163.com" />  
49.   <param name="Subject" value="juyee-log4jMessage" />  
50.   <param name="To" value="test@163.com" />  
51.   <param name="SMTPUsername" value="test" />  
52.   <param name="SMTPPassword" value="test" />  
53.   <layout class="org.apache.log4j.PatternLayout">  
54.    <param name="ConversionPattern"  
55.     value="%-d\{yyyy-MM-dd HH:mm:ss.SSS\} \[%p\]-\[%c\] %m%n" />  
56.   </layout>  
57.  </appender>  
58.   
59.  <appender name="ASYNC" class="org.apache.log4j.AsyncAppender">  
60.   <param name="BufferSize" value="256" />  
61.   <appender-ref ref="DATABASE" />  
62.  </appender>  
63.    
64.    
65.  <logger name="com.litt2.log4j" additivity="false">     
66.         <level value="WARN" />     
67.         <appender-ref ref="CONSOLE" />     
68.     </logger>  
69.   
70.    
71.  <category name="com.litt3">     
72.     <level value="DEBUG" />   
73.        <appender-ref ref="CONSOLE" />  
74.        <appender-ref ref="MAIL" />  
75.   </category>  
76.    
77.  <root>  
78.   <priority value="debug" />  
79.   <appender-ref ref="CONSOLE" />  
80.   <appender-ref ref="FILE" />  
81.  </root>  
82.   
83.   
84. </log4j:configuration>

另外一个配置文件：

1.  <?xml version="1.0" encoding="UTF-8" ?>  
2.  <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">  
3.  <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">  
4.    
5.        
6.        
7.        
8.        
9.        
10.       
11.       
12.       
13.       
14.       
15.       
16.       
17.       
18.       
19.       
20.       
21.       
22.   
23.   
24.     <appender name="filelog\_appender"  
25.         class="org.apache.log4j.RollingFileAppender">  
26.           
27.         <param name="File" value="log/testlog4jxml\_all.log" />  
28.           
29.         <param name="Append" value="true" />  
30.           
31.         <param name="MaxFileSize" value="1MB" />  
32.           
33.         <param name="MaxBackupIndex" value="10000" />  
34.           
35.         <layout class="org.apache.log4j.PatternLayout">  
36.             <param name="ConversionPattern" value="%d\{yyyy-MM-dd HH:mm:ss\} %-5p (%c:%L)- %m%n" />  
37.         </layout>  
38.     </appender>  
39.   
40.   
41.     <appender name="filelog\_daily" class="org.apache.log4j.DailyRollingFileAppender">     
42.         <param name="File" value="log/daily.log" />     
43.         <param name="DatePattern" value="'daily.'yyyy-MM-dd'.log'" />     
44.         <layout class="org.apache.log4j.PatternLayout">     
45.             <param name="ConversionPattern" value="\[%d\{yyyy-MM-dd HH:mm:ss\\\} %-5p\] \[%t\] (%c:%L) - %m%n" />     
46.         </layout>     
47.     </appender>   
48.   
49.   
50.     <appender name="console" class="org.apache.log4j.ConsoleAppender">  
51.         <layout class="org.apache.log4j.PatternLayout">  
52.             <param name="ConversionPattern"  
53.                 value="%d\{yyyy-MM-dd HH:mm:ss\} %-5p: %m%n" />  
54.               
55.         </layout>  
56.     </appender>  
57.   
58. <appender name="EMAIL\_QQ" class="org.apache.log4j.net.SMTPAppender">  
59.         <param name="Threshold" value="INFO"/>  
60.         <param name="BufferSize" value="128" />  
61.         <param name="SMTPHost" value="smtp.qq.com" />  
62.         <param name="SMTPUsername" value="cjjvictory" />  
63.         <param name="SMTPPassword" value="\*\*\*" />  
64.         <param name="From" value="cjjvictory@qq.com" />  
65.         <param name="To" value="cjjvictory@gmail.com" />  
66.         <param name="Subject" value="测试邮件发送" />  
67.         <param name="LocationInfo" value="true" />  
68.         <param name="SMTPDebug" value="true" />  
69.         <layout class="org.cjj.log4j.extend.PatternLayout\_zh">  
70.             <param name="ConversionPattern" value="\[%d\{ISO8601\}\] %-5p %c %m%n"/>  
71.         </layout>  
72.     </appender>  
73.   
74.   
75.     <appender name="ASYNC\_test" class="org.apache.log4j.AsyncAppender">     
76.      <param name="BufferSize" value="10"/>     
77.      <appender-ref ref="EMAIL\_QQ"/>  
78.    </appender>  
79.   
80.    
81.     <category name="org.cjj" additivity="false">  
82. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;  
83.         <level value="ERROR" />  
84.         <appender-ref ref="filelog\_daily" />  
85.         <appender-ref ref="daily\_appender" />  
86.         <appender-ref ref="console" />  
87.         <appender-ref ref="ASYNC\_test" />  
88.  </category>  
89.   
90. </log4j:configuration>

Web配置log4j,需求增加以下内容到WEB-INF/web.xml  
　　<context-param>  
        <param-name>webAppRootKey</param-name>  
        <param-value>smilecargo.root</param-value>  
    </context-param>  
    <context-param>  
        <param-name>log4jConfigLocation</param-name>  
        <param-value>classpath:log4j.xml</param-value>  
    </context-param>  
    <context-param>  
        <param-name>log4jRefreshInterval</param-name>  
        <param-value>60000</param-value>  
    </context-param>  
　　<listener>  
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>  
    </listener>

$\{smilecargo.root\}是web工程相对路径