虽然log4j2 自带了很多种Appender 但是有时候避免不了不是自己想要的,这时候我们就需要自定义Appender,使日志输出到我们指定的位置,废话少说,上菜!
package com.hbzx.log;import java.io.Serializable;import java.util.concurrent.locks.Lock;import java.util.concurrent.locks.ReadWriteLock;import java.util.concurrent.locks.ReentrantReadWriteLock;import org.apache.logging.log4j.core.Filter;import org.apache.logging.log4j.core.Layout;import org.apache.logging.log4j.core.LogEvent;import org.apache.logging.log4j.core.appender.AbstractAppender;import org.apache.logging.log4j.core.appender.AppenderLoggingException;import org.apache.logging.log4j.core.config.plugins.Plugin;import org.apache.logging.log4j.core.config.plugins.PluginAttribute;import org.apache.logging.log4j.core.config.plugins.PluginElement;import org.apache.logging.log4j.core.config.plugins.PluginFactory;import org.apache.logging.log4j.core.layout.PatternLayout;import com.hbzx.frame.MainFrame;/** * 自定义Appender,继承 AbstractAppender 只需要覆盖自已想要的方法即可<br> * 类上面的注解是用来设置配置文件中的标签。 */@Plugin(name = "TextArea", category = "Core", elementType = "appender", printObject = true)public class TextAreaAppender extends AbstractAppender { /** * @fields serialVersionUID */ private static final long serialVersionUID = -830237775522429777L; private final ReadWriteLock rwLock = new ReentrantReadWriteLock(); private final Lock readLock = rwLock.readLock(); //需要实现的构造方法,直接使用父类就行 protected TextAreaAppender(final String name, final Filter filter, final Layout<? extends Serializable> layout, final boolean ignoreExceptions)