log.java

来自「合并几个数据库结构相同的数据库文件。hsql数据库文件合并」· Java 代码 · 共 63 行

package merge;

import java.io.File;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.GregorianCalendar;

public class Log {

	private File log;
	private FileWriter fw;
	private PrintWriter  out;
	
	public Log(){
		log=new File("syslog.txt");
		try{
			fw=new FileWriter(log,true);
			out=new PrintWriter(fw);
		}catch(Exception e){
			e.printStackTrace();
		}
	}
	
	public void setFile(File f){
		log=f;
	}
	
	public File getLog(){
		return this.log;
	}
	
	public void addMes(String str){
		if(this.out==null||str==null)return;
		out.write(str);
		out.println();
	}
	
	public void addTime(String str){
		if(this.out==null)return;
		String time=(new SimpleDateFormat
				("yyyy-MM-dd hh:mm:ss"))
				.format((new GregorianCalendar())
						.getTime());
		out.write(time+"\t"+str);
		out.println();
	}
	
	public void writeLog(){
		out.flush();
	}
	
	public void closeLog(){
		try{
			out.close();
			fw.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	}
	
}