package com.dsh.guns.core.util;
|
|
import java.io.UnsupportedEncodingException;
|
import java.net.URLDecoder;
|
import java.net.URLEncoder;
|
import java.text.DecimalFormat;
|
import java.text.NumberFormat;
|
import java.text.ParseException;
|
import java.util.ArrayList;
|
import java.util.List;
|
import java.util.Map;
|
import java.util.UUID;
|
import java.util.regex.Matcher;
|
import java.util.regex.Pattern;
|
|
|
/**
|
* 基本数据处理工具类
|
*/
|
public class SinataUtil {
|
|
|
/**
|
* List集合分页<br/>
|
* 创建人：Mryang<br/>
|
* 时间：2016年7月28日-下午2:58:14 <br/>
|
* @param <T>
|
* @param pageNo
|
* @param pageSize
|
* @param list
|
* @throws Exception List<UserOrderList> <br/>
|
*/
|
public static <T> List<T> listpage(int pageNo, int pageSize, List<T> list) throws Exception {
|
List<T> result = new ArrayList<T>();
|
if (list != null && list.size() > 0) {
|
int allCount = list.size();
|
if(pageNo > 1 && allCount < pageSize) {
|
return new ArrayList<>();
|
}
|
int pageCount = (allCount + pageSize - 1) / pageSize;
|
if (pageNo >= pageCount) {
|
pageNo = pageCount;
|
}
|
int start = (pageNo - 1) * pageSize;
|
int end = pageNo * pageSize;
|
if (end >= allCount) {
|
end = allCount;
|
}
|
for (int i = start; i < end; i++) {
|
result.add(list.get(i));
|
}
|
}
|
return (result != null && result.size() > 0) ? result : new ArrayList<T>();
|
}
|
|
/**
|
* Double类型取整
|
* @param num
|
* @return
|
*/
|
public static String doubleTrans(double num) {
|
return String.valueOf((long) num);
|
}
|
|
/**
|
* Double类型保留1位小数
|
*
|
* @param num
|
* @return
|
*/
|
public static String doubleRetainOne(double num) {
|
DecimalFormat dfs = new DecimalFormat("0.0");
|
return dfs.format(num);
|
}
|
|
/**
|
* 5位随机数
|
* @return
|
*/
|
public static synchronized String getFive() {
|
int i=(int)((Math.random()*9+1)*10000);
|
return i+"";
|
}
|
/**
|
* Double类型保留2位小数
|
*
|
* @param num
|
* @return
|
*/
|
public static String doubleRetainTwo(double num) {
|
DecimalFormat dfs = new DecimalFormat("0.00");
|
String.format("%.2f", num);
|
return dfs.format(num);
|
}
|
|
/**
|
* Double类型保留1位小数（四舍五入）
|
*
|
* @param num
|
* @return
|
*/
|
public static String doubleForwardOne(double num) {
|
return String.format("%.1f", num);
|
}
|
|
/**
|
* Double类型保留2位小数（四舍五入）
|
*
|
* @param num
|
* @return
|
*/
|
public static String doubleForwardTwo(double num) {
|
return String.format("%.2f", num);
|
}
|
|
/**
|
* 字符串转换成Ascii
|
*
|
* @param value
|
* @return
|
*/
|
public static String stringToAscii(String value) {
|
StringBuffer sbu = new StringBuffer();
|
char[] chars = value.toCharArray();
|
for (int i = 0; i < chars.length; i++) {
|
if (i != chars.length - 1) {
|
sbu.append((int) chars[i]);
|
} else {
|
sbu.append((int) chars[i]);
|
}
|
}
|
return sbu.toString();
|
}
|
|
/**
|
* 小数转换为百分比
|
*
|
* @param decimal
|
* @return
|
* @author TaoNingBo
|
*/
|
public static String decTurnPercent(double decimal) {
|
NumberFormat num = NumberFormat.getPercentInstance();
|
num.setMaximumIntegerDigits(3);
|
num.setMaximumFractionDigits(2);
|
return num.format(decimal);
|
}
|
|
/**
|
* Ascii转换成字符串
|
*
|
* @param value
|
* @return
|
*/
|
public static String asciiToString(String value) {
|
String[] chars = value.split(",");
|
StringBuffer sbu = new StringBuffer();
|
for (int i = 0; i < chars.length; i++) {
|
sbu.append((char) Integer.parseInt(chars[i]));
|
}
|
return sbu.toString();
|
}
|
|
/**
|
* 字符串转换unicode
|
*
|
* @param string
|
* @return
|
* @author TaoNingBo
|
*/
|
public static String string2Unicode(String string) {
|
StringBuffer unicode = new StringBuffer();
|
for (int i = 0; i < string.length(); i++) {
|
// 取出每一个字符
|
char c = string.charAt(i);
|
// 转换为unicode
|
unicode.append("\\u" + Integer.toHexString(c));
|
}
|
return unicode.toString();
|
}
|
|
/**
|
* unicode 转字符串
|
*
|
* @param unicode
|
* @return
|
* @author TaoNingBo
|
*/
|
public static String unicode2String(String unicode) {
|
StringBuffer string = new StringBuffer();
|
String[] hex = unicode.split("\\\\u");
|
for (int i = 1; i < hex.length; i++) {
|
// 转换出每一个代码点
|
int data = Integer.parseInt(hex[i], 16);
|
// 追加成string
|
string.append((char) data);
|
}
|
return string.toString();
|
}
|
|
/**
|
* 字符串编码转换的实现方法
|
*
|
* @param str
|
* 待转换编码的字符串
|
* @param newCharset
|
* 目标编码
|
* @return
|
* @throws UnsupportedEncodingException
|
*/
|
public static String changeCharset(String str, String newCharset) throws UnsupportedEncodingException {
|
if (str != null) {
|
// 用默认字符编码解码字符串。
|
byte[] bs = str.getBytes();
|
// 用新的字符编码生成字符串
|
return new String(bs, newCharset);
|
}
|
return null;
|
}
|
|
/**
|
* 注： \n 回车( ) \t 水平制表符( ) \s 空格(\u0008) \r 换行( )
|
*
|
* @param str
|
* @return
|
*/
|
public static String replaceBlank(String str) {
|
String dest = "";
|
if (str != null) {
|
Pattern p = Pattern.compile("\\s*|\t|\r|\n");
|
Matcher m = p.matcher(str);
|
dest = m.replaceAll("");
|
}
|
return dest;
|
}
|
|
/**
|
* 判断该字符串不能为空
|
*
|
* @param str
|
* @return
|
* @author TaoNingBo
|
*/
|
public static boolean isNotEmpty(Object str) {
|
return !isEmpty(str);
|
}
|
|
|
public static boolean isNotEmptyUndefined(Object str) {
|
return !isEmpty(str) && !str.toString().equals("undefined");
|
}
|
|
/**
|
* 字符串编码转换的实现方法
|
*
|
* @param str
|
* 待转换编码的字符串
|
* @param oldCharset
|
* 原编码
|
* @param newCharset
|
* 目标编码
|
* @return
|
* @throws UnsupportedEncodingException
|
*/
|
public static String changeCharset(String str, String oldCharset, String newCharset) throws UnsupportedEncodingException {
|
if (str != null) {
|
// 用旧的字符编码解码字符串。解码可能会出现异常。
|
byte[] bs = str.getBytes(oldCharset);
|
// 用新的字符编码生成字符串
|
return new String(bs, newCharset);
|
}
|
return null;
|
}
|
|
/**
|
* 给手机号码加分割符
|
*
|
* @param phone
|
* @return
|
* @author TaoNingBo
|
*/
|
public static String splitPhone(String phone) {
|
if (isNotEmpty(phone)) {
|
String strone = phone.substring(0, 3);
|
String strtwo = phone.substring(strone.length(), 7);
|
String strthree = phone.substring(strtwo.length() + strone.length(), phone.length());
|
return strone + "-" + strtwo + "-" + strthree;
|
}
|
return "";
|
}
|
|
/**
|
* 非空判断
|
*
|
* @param str
|
* @return
|
* @author TaoNingBo
|
*/
|
public static boolean isEmpty(Object str) {
|
return str == null || str.toString().length() == 0 || str.equals("") || str.toString().matches("\\s*");
|
}
|
|
|
|
/**
|
* 将List<{@link Object}>转换成List<{@link T}>
|
*
|
* @param list
|
* 将要转换的对象
|
* @param clazs
|
* 需要转换的泛型对象
|
* @return
|
* @author TaoNingBo
|
*/
|
@SuppressWarnings("unchecked")
|
public static <T> List<T> fromToObject(List<?> list, Class<T> clazs) {
|
List<T> t = new ArrayList<T>();
|
for (Object object : list) {
|
t.add((T) object);
|
}
|
return t;
|
}
|
|
/**
|
* 生成 uuid， 即用来标识一笔单，也用做 nonce_str
|
* @return
|
*/
|
public static String generateUUID() {
|
return UUID.randomUUID().toString().replaceAll("-", "").substring(0, 32);
|
}
|
|
/**
|
* 将List<{@link Object}>转换成List<{@link Map<String, Object>}>
|
*
|
* @param list
|
* @return
|
* @author TaoNingBo
|
*/
|
@SuppressWarnings("unchecked")
|
public static List<Map<String, Object>> fromToObject_M(List<?> list) {
|
List<Map<String, Object>> t = new ArrayList<Map<String, Object>>();
|
for (Object object : list) {
|
t.add((Map<String, Object>) object);
|
}
|
return t;
|
}
|
|
/**
|
* URL编码
|
*
|
* @param url
|
* @return
|
*/
|
@SuppressWarnings("deprecation")
|
public static String URLEncode(String url) {
|
try {
|
return URLEncoder.encode(url, "UTF-8");
|
} catch (UnsupportedEncodingException e) {
|
e.printStackTrace();
|
}
|
return URLEncoder.encode(url);
|
}
|
|
/**
|
* URL解码
|
*
|
* @param url
|
* @return
|
*/
|
@SuppressWarnings("deprecation")
|
public static String URLDecode(String url) {
|
try {
|
return URLDecoder.decode(url, "UTF-8");
|
} catch (UnsupportedEncodingException e) {
|
e.printStackTrace();
|
}
|
return URLDecoder.decode(url);
|
}
|
|
|
}
|
