不多说，直接上干货！
timereplace.java
package zhouls.bigdata.DataFeatureSelection.util; /*
* 这个程序，是用来做补充的
*/
public class timereplace { public static void main(String[] args) { String rawtime = "2017-01-16 22:28:26.0";
String rawtime1 = rawtime.replaceAll("-", ":");//2017:01:16 22:28:26.0
String rawtime2 = rawtime1.replaceAll(" ", ":");//2017:01:16:22:28:26.0
System.out.println(rawtime2.substring(, )); //打印字符串2017:01:16:22:28:26
} }
