package com.mzeat.util;
import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringUtils {
public static boolean isEmpty(String str) {
return null == str || str.length() == 0;
}
public static String formatDouble(double value) {
DecimalFormat df = new DecimalFormat();
String style = "0.000000";
df.applyPattern(style);// 将格式应用于格式化器
return df.format(value);
}
public static String formatDistance(String distance) {
int length = distance.length();
if (length <= 3) {
distance = distance + "米";
} else {
double dis = Double.valueOf(distance);
dis = dis / 1000;
java.text.DecimalFormat df = new java.text.DecimalFormat("#.00");
distance = String.valueOf(df.format(dis)) + "公里";
}
return distance;
}
public static String formatAvg_point(String avg_point) {
String start_num;
double num = Double.valueOf(String.valueOf(avg_point));
if (num == 0.0f) {
start_num = "0";
} else {
java.text.DecimalFormat df = new java.text.DecimalFormat("#.0");
start_num = String.valueOf(df.format(num));
}
return start_num;
}
/*
* 验证号码 手机号 固话均可
*/
public static boolean isPhoneNumberValid(String phoneNumber) {
boolean isValid = false;
String expression = "((^(13|15|18)[0-9]{9}$)|(^0[1,2]{1}\\d{1}-?\\d{8}$)|(^0[3-9] {1}\\d{2}-?\\d{7,8}$)|(^0[1,2]{1}\\d{1}-?\\d{8}-(\\d{1,4})$)|(^0[3-9]{1}\\d{2}-? \\d{7,8}-(\\d{1,4})$))";
CharSequence inputStr = phoneNumber;
Pattern pattern = Pattern.compile(expression);
Matcher matcher = pattern.matcher(inputStr);
if (matcher.matches()) {
isValid = true;
}
return isValid;
}
/**
* 手机号验证
*
* @param str
* @return 验证通过返回true
*/
public static boolean isMobile(String str) {
Pattern p = null;
Matcher m = null;
boolean b = false;
p = Pattern.compile("^[1][3,4,5,8][0-9]{9}$"); // 验证手机号
m = p.matcher(str);
b = m.matches();
return b;
}
/**
* 电话号码验证
*
* @param str
* @return 验证通过返回true
*/
public static boolean isPhone(String str) {
Pattern p1 = null, p2 = null;
Matcher m = null;
boolean b = false;
p1 = Pattern.compile("^[0][1-9]{2,3}-[0-9]{5,10}$"); // 验证带区号的
p2 = Pattern.compile("^[1-9]{1}[0-9]{5,8}$"); // 验证没有区号的
if (str.length() > 9) {
m = p1.matcher(str);
b = m.matches();
} else {
m = p2.matcher(str);
b = m.matches();
}
return b;
}
public static boolean checkDistance(String distance) {
if (distance.length() > 6) {
return false;
}
return true;
}
public static boolean isValidDate(String date){
if (date.length() <8) {
return false;
}else {
if (date.length() > 10) {
return false;
}else {
return true;
}
}
}
/**
* 检测邮件的有效性
*
* @param email
* @return
*/
public static boolean validateEmail(String email) {
boolean b = false;
if (!("").equals(email)) {
// b = email.matches("\\w+@\\w+\\.(com\\.cn)|\\w+@\\w+\\.(com|cn)");
b = email
.matches("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
}
return b;
}
private final static Pattern emailer = Pattern.compile("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");
//private final static SimpleDateFormat dateFormater = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
//private final static SimpleDateFormat dateFormater2 = new SimpleDateFormat("yyyy-MM-dd");
private final static ThreadLocal<SimpleDateFormat> dateFormater = new ThreadLocal<SimpleDateFormat>() {
@Override
protected SimpleDateFormat initialValue() {
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
}
};
private final static ThreadLocal<SimpleDateFormat> dateFormater2 = new ThreadLocal<SimpleDateFormat>() {
@Override
protected SimpleDateFormat initialValue() {
return new SimpleDateFormat("yyyy-MM-dd");
}
};
/**
* 将字符串转位日期类型
* @param sdate
* @return
*/
public static Date toDate(String sdate) {
try {
return dateFormater.get().parse(sdate);
} catch (ParseException e) {
return null;
}
}
/**
* 以友好的方式显示时间
* @param sdate
* @return
*/
public static String friendly_time(String sdate) {
Date time = toDate(sdate);
if(time == null) {
return "Unknown";
}
String ftime = "";
Calendar cal = Calendar.getInstance();
//判断是否是同一天
String curDate = dateFormater2.get().format(cal.getTime());
String paramDate = dateFormater2.get().format(time);
if(curDate.equals(paramDate)){
int hour = (int)((cal.getTimeInMillis() - time.getTime())/3600000);
if(hour == 0)
ftime = Math.max((cal.getTimeInMillis() - time.getTime()) / 60000,1)+"分钟前";
else
ftime = hour+"小时前";
return ftime;
}
long lt = time.getTime()/86400000;
long ct = cal.getTimeInMillis()/86400000;
int days = (int)(ct - lt);
if(days == 0){
int hour = (int)((cal.getTimeInMillis() - time.getTime())/3600000);
if(hour == 0)
ftime = Math.max((cal.getTimeInMillis() - time.getTime()) / 60000,1)+"分钟前";
else
ftime = hour+"小时前";
}
else if(days == 1){
ftime = "昨天";
}
else if(days == 2){
ftime = "前天";
}
else if(days > 2 && days <= 10){
ftime = days+"天前";
}
else if(days > 10){
ftime = dateFormater2.get().format(time);
}
return ftime;
}
/**
* 判断给定字符串时间是否为今日
* @param sdate
* @return boolean
*/
public static boolean isToday(String sdate){
boolean b = false;
Date time = toDate(sdate);
Date today = new Date();
if(time != null){
String nowDate = dateFormater2.get().format(today);
String timeDate = dateFormater2.get().format(time);
if(nowDate.equals(timeDate)){
b = true;
}
}
return b;
}
/**
* 判断是不是一个合法的电子邮件地址
* @param email
* @return
*/
public static boolean isEmail(String email){
if(email == null || email.trim().length()==0)
return false;
return emailer.matcher(email).matches();
}
/**
* 字符串转整数
* @param str
* @param defValue
* @return
*/
public static int toInt(String str, int defValue) {
try{
return Integer.parseInt(str);
}catch(Exception e){}
return defValue;
}
/**
* 对象转整数
* @param obj
* @return 转换异常返回 0
*/
public static int toInt(Object obj) {
if(obj==null) return 0;
return toInt(obj.toString(),0);
}
/**
* 对象转整数
* @param obj
* @return 转换异常返回 0
*/
public static long toLong(String obj) {
try{
return Long.parseLong(obj);
}catch(Exception e){}
return 0;
}
/**
* 字符串转布尔值
* @param b
* @return 转换异常返回 false
*/
public static boolean toBool(String b) {
try{
return Boolean.parseBoolean(b);
}catch(Exception e){}
return false;
}
}