java 如何将多种字符串格式 解析为Date格式

import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Date; 
public class DateParse {
    /**
     * @param inputDate 要解析的字符串
     * @param patterns 可能出现的日期格式
     * @return 解析出来的日期，如果没有匹配的返回null
     */
    public static Date parseDate(String inputDate,String[] patterns){
        SimpleDateFormat df = new SimpleDateFormat();
        for(String pattern:patterns){
            df.applyPattern(pattern);
            df.setLenient(false);//设置解析日期格式是否严格解析日期
            ParsePosition pos = new ParsePosition(0);
            Date date = df.parse(inputDate, pos);
            if(date!=null){
                return date;
            }
        }
        return null;
    }
    //验证结果
    public static void main(String[] args) {
        String[] possiblePatterns =
                {
                        "yyyy-MM-dd",
                        "yyyy-MM-dd HH:mm:ss",
                        "yyyyMMdd",
                        "yyyy/MM/dd",
                        "yyyy年MM月dd日",
                        "yyyy MM dd"
                }; 
        String inputDate1 = "2018-01-01";
        String inputDate2 = "2018-01-01 12:12:12";
        String inputDate3 = "20180101";
        String inputDate4 = "2018/01/01";
        String inputDate5 = "2018年01月01日";
        String inputDate6 = "2018 01 01";
        System.out.println(parseDate(inputDate6,possiblePatterns));
        System.out.println(parseDate(inputDate1,possiblePatterns));
        System.out.println(parseDate(inputDate2,possiblePatterns));
        System.out.println(parseDate(inputDate3,possiblePatterns));
        System.out.println(parseDate(inputDate4,possiblePatterns));
        System.out.println(parseDate(inputDate5,possiblePatterns));
        System.out.println(parseDate(inputDate6,possiblePatterns));
    }
}

public static Date parseDate(String inputDate) {
        Date outputDate = null;
        String[] possibleDateFormats =
                {
                        "yyyy-MM-dd",
                        "yyyyMMdd",
                        "yyyy/MM/dd",
                        "yyyy年MM月dd日",
                        "yyyy MM dd"
                }; 
        try {
            outputDate = DateUtils.parseDate(inputDate, possibleDateFormats);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return outputDate;
    }

Date lxyfDate = str2Date(lxyf);

    public  Date str2Date(String dateString) {
         String FORMAT_STRING = "yyyy-MM-dd HH:mm:ss";
         String[] REPLACE_STRING = new String[]{"GMT+0800", "GMT+08:00"};
         String SPLIT_STRING = "(中国标准时间)";
        try {
            dateString = dateString.split(Pattern.quote(SPLIT_STRING))[0].replace(REPLACE_STRING[0], REPLACE_STRING[1]);
            SimpleDateFormat sf1 = new SimpleDateFormat("E MMM dd yyyy HH:mm:ss z", Locale.US);
            Date date = sf1.parse(dateString);
            return date;
        } catch (Exception e) {
            throw new RuntimeException("时间转化格式错误" + "[dateString=" + dateString + "]" + "[FORMAT_STRING=" + FORMAT_STRING + "]");
        }
    }