System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(new Date()));
//2011-10-19

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System.out.println(new SimpleDateFormat("yyyy-MM-dd").format(new Date()));

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只要当前时间是么,一句就够了:

System.out.println(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()));



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这是源代码：
Java code


import java.util.Date;
import java.text.DateFormat;
import java.util.Locale;
public class  DateDemo02
{
    public static void main(String[] args) 
    {
        DateFormat df1 = DateFormat.getDateInstance(DateFormat.YEAR_FIELD,new Locale("zh","CH"));
        DateFormat df2 = DateFormat.getDateTimeInstance(DateFormat.YEAR_FIELD,DateFormat.ERA_FIELD,new Locale("zh","CH"));
        System.out.println(df1.format(new Date()));
        System.out.println(df2.format(new Date()));
    }
}

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探讨

DateFormat dateFormat = new SimpleDateFormate("yyyy-MM-dd HH:mm:ss.SSS");
System.out.println(dateFormat.format(new Date()));


------解决方案--------------------
DateFormat dateFormat = new SimpleDateFormate("yyyy-MM-dd HH:mm:ss.SSS");
System.out.println(dateFormat.format(new Date()));
一般需要导入import java.util.Date; import java.text.DateFormat;


------解决方案--------------------
Java code
System.out.println(new SimpleDateFormat("yyyy-MM-dd  HH:mm:ss").format(new Date()));