Question

我正在将我的应用程序中的log4j从1.2版升级到2.12版。我有一段代码需要编写，我不知道该怎么做。

我已经阅读了有关随机访问文件追加器和抽象追加器的信息，但我不知道该使用哪个来创建缺少的目录。

/*
 * Created on Jan 10, 2006
 *
 * To change the template for this generated file go to
 * Window&gt;Preferences&gt;Java&gt;Code Generation&gt;Code and Comments
 */
package com.sbc.swat.logging;

import java.io.Serializable;
import java.io.File;
import java.io.IOException;

//import org.apache.log4j.FileAppender;
//import org.apache.log4j.helpers.LogLog;

//import org.apache.logging.log4j.core.appender.FileAppender;
import org.apache.logging.log4j.core.appender.AbstractAppender;
import org.apache.logging.log4j.status.StatusLogger;

/**
 * @author js5396
 *
 * log4j Appender that extends FileAppender to create any
 * missing directories in the log file path.
 */
//public class MkDirFileAppender extends FileAppender
public class MkDirFileAppender extends AbstractAppender
{
    public synchronized void setFile(String fileName,
                                     boolean append,
                                     boolean bufferedIO,
                                     int bufferSize)
    throws IOException
    {
        //LogLog.debug("MkDirFileAppender fileName [" + fileName + "]");
        StatusLogger.getLogger().debug("MkDirFileAppender fileName ["+ fileName + "]");     
        File file = new File(fileName);     
        File parent = file.getAbsoluteFile().getCanonicalFile().getParentFile();
        /*LogLog.debug("MkDirFileAppender parent [" + parent + "] " +
                     "exist [" + (parent == null ? "null" : parent.exists() + "") + "]");*/
        StatusLogger.getLogger().debug("MkDirFileAppender parent ["+ parent + "] "+"exist ["+ (parent == null ? "null": parent.exists()+"")+ "]");      
        try
        {
            if (parent != null && !parent.exists())
                parent.mkdirs();
        }
        catch (Throwable e)
        {
            //LogLog.error("MkDirFileAppender could not create path for: " + fileName, e);
            StatusLogger.getLogger().error("MkDirFileAppender could not create path for: "+ fileName, e);           
            //Fall through, super.setFile will probably fail
        }

        super.setFile(fileName, append, bufferedIO, bufferSize);
    }

}

之前该类扩展了FileAppender并调用了该类的setFile方法，但在log4j2中，FileAppender是最终类，并且不确定扩展抽象附加程序是否是正确的方法。注释的代码是我尝试更改的旧代码。

如何在log4j2.12的日志文件路径中创建丢失的目录

0 个答案: