将字符串转换成时间的工具类

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class UtilStringToDate {
    public static void main(String[] args) {
        //测试
       //UtilStringToDate.strToDate("2018-09-06 19:38:02");
    }

   public static long strToDate (String str){
        //2018-09-06 19:07:27
      SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
      Date date = new Date();
      try {
          date = dateFormat.parse(str);
          //System.out.println(date.getTime());
      } catch (ParseException e) {
          e.printStackTrace();
      }
      return date.getTime();
  }
}