Store Logging information to oracle database

Question

I have currently implemented a java swing application. In that application I have used java.util.logging to log things in to a text file. But It is difficult to go through the text file since the file is very big.

So I'm thinking to store logging information in to a oracle database(Which i am using for the application) and provide swing interface to access that table. So I will be able search that table for certain logging levels like INFO and SEVERE. Is there way to do that using java util package or using Log4j. Pls help

Answer 1

看看这些appender： org.apache.log4j.jdbc.JDBCAppender或改进版本org.apache.log4j.jdbcplus.JDBCAppender 。

Answer 2

You could write your own Appender by extending the org.apache.log4j.AppenderSkeleton . You can make him configurable for several data storages and define how to split up the LoggingEvent where you can get the seperated informations as line-number, class-name, message, logger-severity etc.

public class StorageBasedAppender
    extends AppenderSkeleton
{
    [...]

    @Override
    protected void append(LoggingEvent event)
    {
        // Write to your database or other storages
    }
}

You could enhance this class by making it configurable and more. If you don't need somewhat specific, regardings to the other questions make use of the JDBCAppenderConfiguration . Which can be configured easily

<appender name="jdbcAppender" class="org.apache.log4j.jdbc.JDBCAppender"> 
    <param name="URL" value="jdbc:oracle:thin:@sd1.hbs.edu:1521:sc1" /> 
    <param name="Driver" value="oracle.jdbc.driver.OracleDriver" /> 
    <param name="User" value="user" /> 
    <param name="Password" value="password" /> 
    <layout class="org.apache.log4j.PatternLayout"> 
        <param name="ConversionPattern" 
          value="INSERT INTO LOGGING_SAMPLES_TEST 
          (log_date, log_level, location, message) 
          VALUES ( '%d{ISO8601}','%p', '%C;%L', '%m' )" 
        /> 
    </layout> 
</appender> 

Answer 3

You can make use of a JDBC Log4j Appender.

Check out Tutorialspoint or Apache Wiki

You might need to change your configuration accordingly whether you use .properties or .xml.