dianwangAdm/src/main/java/com/minpay/common/util/StringUtil.java

package com.minpay.common.util;

import org.springframework.util.StringUtils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.Map;


/**
 * 字符串工具类
 */
public class StringUtil extends StringUtils {
    /**
     * obj 转 String
     * @param obj
     * @return
     */
    public static String ObjectToString(Object obj){
        if(obj == null || "".equals(obj)){
            return "";
        }else{
            return String.valueOf(obj).replaceAll(" ","");
        }
    }

    /**
     * obj转int
     * @param obj
     * @return
     */
    public static Integer ObjToInt(Object obj){
        if(obj == null || "".equals(obj)){
            return 0;
        }
        if(obj instanceof Integer){
            return Integer.valueOf(String.valueOf(obj));
        }else{
            try {
                return Integer.valueOf(String.valueOf(obj).replaceAll("月份","").replaceAll("月",""));
            } catch (Exception e){
                return 0;
            }
        }
    }

    /**
     * obj转float
     * @param obj
     * @return
     */
    public static Float ObjToFloat(Object obj){
        if(obj == null || "".equals(obj)){
            return 0f;
        }
        if(obj instanceof Float){
            return Float.valueOf(String.valueOf(obj));
        }else{
            try {
                return Float.valueOf(obj.toString().replaceAll("%",""));
            }catch (Exception e){
                return 0f;
            }
        }
    }
    /**
     * obj转double
     * @param obj
     * @return
     */
    public static Double ObjToDouble(Object obj){
        if(obj == null || "".equals(obj)){
            return 0d;
        }
        if(obj instanceof Double){
            return Double.valueOf(String.valueOf(obj));
        }else{
            try {
                return Double.valueOf(String.valueOf(obj));
            } catch (Exception e){
                return 0d;
            }
        }
    }
    /**
     * obj转date
     * 入参格式yyyy/MM/dd hh:mm:ss
     * 入参格式yyyy/mm/dd
     * @param obj
     * @return
     */
    public static Date ObjToDate(Object obj,String type) throws ParseException {
        if(obj == null || "".equals(obj)){
            return null;
        }
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");//注意月份是MM
        SimpleDateFormat simpleDateFormat2 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//注意月份是MM
        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
        DateTimeFormatter fa = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        if(obj instanceof Date){
            if("1".equals(type)){//年月日
                return simpleDateFormat.parse(obj.toString().replaceAll("/","-"));
            }else if ("2".equals(type)){//年月日 时分秒
                return simpleDateFormat2.parse(obj.toString().replaceAll("/","-"));
            }
        }else{
           if(obj.toString().endsWith(".0")){
               if("1".equals(type)){
                   return simpleDateFormat.parse(obj.toString().substring(0,obj.toString().length()-2));
               }else if("2".equals(type)){
                   return simpleDateFormat2.parse(obj.toString().substring(0,obj.toString().length()-2));
               }
           }else {
               LocalDateTime ldt = LocalDateTime.parse(obj.toString().replaceAll(" ","")
                       .replaceAll("-","")
                       .replaceAll("/","")
                       .replaceAll(":",""),dtf);
               String datetime = ldt.format(fa);
               if("1".equals(type)){
                   return simpleDateFormat.parse(datetime);
               }else if("2".equals(type)){
                   return simpleDateFormat2.parse(datetime);
               }
               return null;
           }
        }
        return null;
    }

    /**
     * 入参格式yyyyMMdd hh:mm:ss
     * 出参格式yyyy-mm-dd hh:mm:ss
     * @param obj
     * @return
     */
    public static Date ObjNumToDate(Object obj) throws ParseException {
        if(obj == null || "".equals(obj)){
            return null;
        }
        //去空格
        String tempStr = obj.toString().replaceAll(" ","");
        if(tempStr.length() != 14){
            return null;
        }
        StringBuffer dateStr = new StringBuffer();
        //组装日期格式
        dateStr.append(tempStr.substring(0,4))
                .append("-")
                .append(tempStr.substring(4,6))
                .append("-")
                .append(tempStr.substring(6,8))
                .append(" ")
                .append(tempStr.substring(8,10))
                .append(":")
                .append(tempStr.substring(10,12))
                .append(":")
                .append(tempStr.substring(12,14));
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//注意月份是MM
        return simpleDateFormat.parse(dateStr.toString());
    }

    /**
     * 日期格式补全
     * @param obj
     * @return
     */
    public static String ObjDateRangeCompletion(Object obj){
        if(obj == null || "".equals(obj)){
            return "";
        }
        String start ="";
        String end = "";
        String temp = obj.toString();
        temp = temp.replaceAll(" ","").replaceAll("-","").replaceAll("/","");
        if(temp.length() == 16){
            start = temp.substring(0,8)+"000000";
            end = temp.substring(8,16)+"235959";
        }
        return start+end;
    }

    /**
     * 时间计算
     * @param start
     * @param end
     * @return
     */
    public static float dateCalculate(String start, String end){
        try {
            int minute = 0,surplus=0,mt = 60 * 1000;
            float second = 0f;
            Date s = new Date(start.replaceAll("-","/"));
            Date e = new Date(end.replaceAll("-","/"));
            long total = e.getTime() - s.getTime();

            minute = (int) (total / mt);
            surplus = (int) (total - minute * mt);
            second = ArithUtils.div(String.valueOf(surplus),String.valueOf(mt));
            return ArithUtils.add(String.valueOf(minute),String.valueOf(second) );
        }catch (Exception ee){
            ee.printStackTrace();
            return 0f;
        }
    }
    /**
     * 时间计算
     * @param start
     * @param end
     * @return
     */
    public static float dateCalculate2(Long start, Long end){
        try {
            int minute = 0,surplus=0,mt = 60 * 1000;
            float second = 0f;
            long total = end - start;
            minute = (int) (total / mt);
            surplus = (int) (total - minute * mt);
            second = ArithUtils.div(String.valueOf(surplus),String.valueOf(mt));
            return ArithUtils.add(String.valueOf(minute),String.valueOf(second) );
        }catch (Exception ee){
            ee.printStackTrace();
            return 0f;
        }
    }
    /**
     * 时间计算
     * @param range
     * @param timeRange = 000000 - 235959
     * @return
     */
    public static String getStartAndEndDatetime(Object range, Object timeRange,String type){
        String str1 =  StringUtil.ObjectToString(range);
        String str2 =  StringUtil.ObjectToString(timeRange);
        if("1".equals(type)){
            return str1.split("~")[0]+" "+str2.split("~")[0];
        }else if("2".equals(type)){
            return str1.split("~")[1]+" "+str2.split("~")[1];
        }
        return "";
    }

    public static void main(String[] args) {
        String a = "2021-2-25 10:43:11";
        String b = "2021-2-25 10:57:00";
    }
}