Question

java重定向标准输出流到当前目录的log.txt文件，并输出如下语句：

This is a log file.
****************************************************
Time:2014.1.16 xx:xx:xx
Now system is running well.
My name is XXX.

其中time行的日期和时间是实时获得，不能写死

Answer 1

package com.kidd.atmtest;

import java.io.FileNotFoundException;
import java.io.PrintStream;
import java.text.SimpleDateFormat;
import java.util.Date;

public class Test {

    public static void main(String[] args) throws FileNotFoundException {
        System.out.println("log.txt文件位置:"
                + Thread.currentThread().getContextClassLoader()
                        .getResource("log.txt").getFile());
        System.setOut(new PrintStream(Thread.currentThread()
                .getContextClassLoader().getResource("log.txt").getFile()));
        System.out.println("This is a log file.");
        System.out
                .println("****************************************************");
        System.out.println("Time:"
                + new SimpleDateFormat("yyyy.MM.dd HH:mm:ss")
                        .format(new Date()));
        System.out.println("Now system is running well.");
        System.out.println("My name is Test.");
    }

}