1 package com.xiaoyun.org.util;
2
3 import java.io.BufferedReader;
4 import java.io.IOException;
5 import java.io.InputStream;
6 import java.io.InputStreamReader;
7 import java.text.ParseException;
8 import java.text.SimpleDateFormat;
9 import java.util.Calendar;
10 import java.util.Date;
11 import java.util.regex.Pattern;
12
13 /**
14 * 字符串操作工具包
15 *
16 * @author liux (http://my.oschina.net/liux)
17 * @version 1.0
18 * @created 2012-3-21
19 */
20
21 public class StringUtils {
22 private final static Pattern emailer = Pattern
23 .compile("\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");
24 private final static Pattern phones = Pattern
25 .compile("^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$");
26
27 // private final static SimpleDateFormat dateFormater = new
28 // SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
29 // private final static SimpleDateFormat dateFormater2 = new
30 // SimpleDateFormat("yyyy-MM-dd");
31
32 private final static ThreadLocal<SimpleDateFormat> dateFormater = new ThreadLocal<SimpleDateFormat>() {
33 @Override
34 protected SimpleDateFormat initialValue() {
35 return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
36 }
37 };
38
39 private final static ThreadLocal<SimpleDateFormat> dateFormater2 = new ThreadLocal<SimpleDateFormat>() {
40 @Override
41 protected SimpleDateFormat initialValue() {
42 return new SimpleDateFormat("yyyy-MM-dd");
43 }
44 };
45
46 /**
47 * 将字符串转位日期类型
48 *
49 * @param sdate
50 * @return
51 */
52 public static Date toDate(String sdate) {
53 try {
54 return dateFormater.get().parse(sdate);
55 } catch (ParseException e) {
56 return null;
57 }
58 }
59
60 /**
61 * 以友好的方式显示时间
62 *
63 * @param sdate
64 * @return
65 */
66 public static String friendly_time(String sdate) {
67 Date time = toDate(sdate);
68 if (time == null) {
69 return "Unknown";
70 }
71 String ftime = "";
72 Calendar cal = Calendar.getInstance();
73
74 // 判断是否是同一天
75 String curDate = dateFormater2.get().format(cal.getTime());
76 String paramDate = dateFormater2.get().format(time);
77 if (curDate.equals(paramDate)) {
78 int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000);
79 if (hour == 0)
80 ftime = Math.max(
81 (cal.getTimeInMillis() - time.getTime()) / 60000, 1)
82 + "分钟前";
83 else
84 ftime = hour + "小时前";
85 return ftime;
86 }
87
88 long lt = time.getTime() / 86400000;
89 long ct = cal.getTimeInMillis() / 86400000;
90 int days = (int) (ct - lt);
91 if (days == 0) {
92 int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000);
93 if (hour == 0)
94 ftime = Math.max(
95 (cal.getTimeInMillis() - time.getTime()) / 60000, 1)
96 + "分钟前";
97 else
98 ftime = hour + "小时前";
99 } else if (days == 1) {
100 ftime = "昨天";
101 } else if (days == 2) {
102 ftime = "前天";
103 } else if (days > 2 && days <= 10) {
104 ftime = days + "天前";
105 } else if (days > 10) {
106 ftime = dateFormater2.get().format(time);
107 }
108 return ftime;
109 }
110
111 /**
112 * 判断给定字符串时间是否为今日
113 *
114 * @param sdate
115 * @return boolean
116 */
117 public static boolean isToday(String sdate) {
118 boolean b = false;
119 Date time = toDate(sdate);
120 Date today = new Date();
121 if (time != null) {
122 String nowDate = dateFormater2.get().format(today);
123 String timeDate = dateFormater2.get().format(time);
124 if (nowDate.equals(timeDate)) {
125 b = true;
126 }
127 }
128 return b;
129 }
130
131 /**
132 * 返回long类型的今天的日期
133 *
134 * @return
135 */
136 public static long getToday() {
137 Calendar cal = Calendar.getInstance();
138 String curDate = dateFormater2.get().format(cal.getTime());
139 curDate = curDate.replace("-", "");
140 return Long.parseLong(curDate);
141 }
142
143 /**
144 * 判断给定字符串是否空白串。 空白串是指由空格、制表符、回车符、换行符组成的字符串 若输入字符串为null或空字符串，返回true
145 *
146 * @param input
147 * @return boolean
148 */
149 public static boolean isEmpty(String input) {
150 if (input == null || "".equals(input))
151 return true;
152
153 for (int i = 0; i < input.length(); i++) {
154 char c = input.charAt(i);
155 if (c != ' ' && c != '\t' && c != '\r' && c != '\n') {
156 return false;
157 }
158 }
159 return true;
160 }
161
162 /**
163 * 判断是不是一个合法的电子邮件地址
164 *
165 * @param email
166 * @return
167 */
168 public static boolean isEmail(String email) {
169 if (email == null || email.trim().length() == 0)
170 return false;
171 return emailer.matcher(email).matches();
172 }
173
174 /**
175 * 判断是不是一个合法的手机号
176 *
177 * @param phone
178 * @return
179 */
180 public static boolean isPhone(String phone) {
181 if (phone == null || phone.trim().length() == 0)
182 return false;
183 return phones.matcher(phone).matches();
184 }
185
186 /**
187 * 字符串转整数
188 *
189 * @param str
190 * @param defValue
191 * @return
192 */
193 public static int toInt(String str, int defValue) {
194 try {
195 return Integer.parseInt(str);
196 } catch (Exception e) {
197 }
198 return defValue;
199 }
200
201 /**
202 * 对象转整数
203 *
204 * @param obj
205 * @return 转换异常返回 0
206 */
207 public static int toInt(Object obj) {
208 if (obj == null)
209 return 0;
210 return toInt(obj.toString(), 0);
211 }
212
213 /**
214 * 对象转整数
215 *
216 * @param obj
217 * @return 转换异常返回 0
218 */
219 public static long toLong(String obj) {
220 try {
221 return Long.parseLong(obj);
222 } catch (Exception e) {
223 }
224 return 0;
225 }
226
227 /**
228 * 字符串转布尔值
229 *
230 * @param b
231 * @return 转换异常返回 false
232 */
233 public static boolean toBool(String b) {
234 try {
235 return Boolean.parseBoolean(b);
236 } catch (Exception e) {
237 }
238 return false;
239 }
240
241 /**
242 * 将一个InputStream流转换成字符串
243 *
244 * @param is
245 * @return
246 */
247 public static String toConvertString(InputStream is) {
248 StringBuffer res = new StringBuffer();
249 InputStreamReader isr = new InputStreamReader(is);
250 BufferedReader read = new BufferedReader(isr);
251 try {
252 String line;
253 line = read.readLine();
254 while (line != null) {
255 res.append(line);
256 line = read.readLine();
257 }
258 } catch (IOException e) {
259 e.printStackTrace();
260 } finally {
261 try {
262 if (null != isr) {
263 isr.close();
264 isr.close();
265 }
266 if (null != read) {
267 read.close();
268 read = null;
269 }
270 if (null != is) {
271 is.close();
272 is = null;
273 }
274 } catch (IOException e) {
275 }
276 }
277 return res.toString();
278 }
279
280 private static long lastClickTime;
281 public static boolean isFastDoubleClick() {
282 long time = System.currentTimeMillis();
283 long timeD = time - lastClickTime;
284 if ( 0 < timeD && timeD < 2000) {
285 return true;
286 }
287 lastClickTime = time;
288 return false;
289 }
290 }
