我在一个main方法测试log4j
package log4j;
import org.apache.log4j.*;
public class TestLog {
static Logger logger = Logger.getLogger(TestLog.class);//First step
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
PropertyConfigurator.configure( "log4j.properties ");//Second step
logger.debug( "Here is some DEBUG ");//Third step
logger.info( "Here is some INFO ");
logger.warn( "Here is some WARN ");
logger.error( "Here is some ERROR ");
logger.fatal( "Here is some FATAL ");
}
}
控制台老是输出
[main] INFO log4j.TestLog - Here is some INFO
[main] WARN log4j.TestLog - Here is some WARN
[main] ERROR log4j.TestLog - Here is some ERROR
[main] FATAL log4j.TestLog - Here is some FATAL
log4j:WARN No such property [conversionPattern] in org.apache.log4j.TTCCLayout.
log4j:ERROR Could not read configuration file [log4j.properties].
java.io.FileNotFoundException: log4j.properties (系统找不到指定的文件。)
怎么找不到啊。
我那个log4j.properties都放了3个web_inf class lib都放力量
------解决方案--------------------
PropertyConfigurator.configure( "log4j.properties ");//Second step
这么写你应该把它放在工程目录底下的；如果放在src底下，可以把这句省略的吧
org.apache.log4j.TTCCLayout 为什么找不到我也不知道，包不全么？
另外，“控制台老是输出”log4j可能也在控制台输出的呀
控制台+文件：
log4j.rootLogger=warn, console, file
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d %-5p %-5c{3}:%L %x -> %m%n
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=log/importResult.txt
log4j.appender.file.layout=org.apache.log4j.PatternLayout
控制台+文件：
log4j.rootLogger=warn, file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=log/importResult.txt
log4j.appender.file.layout=org.apache.log4j.PatternLayout
------解决方案--------------------
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