1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
| package cn.ksource.core.util;
|
| import org.apache.commons.lang.StringUtils;
|
| public class JavaScriptEscape {
|
| public static void main(String[] args) {
|
| String stest = "1234 abcd[]()<+>,.~\\";
| System.out.println(stest);
| System.out.println(escape(stest));
| System.out.println(unescape(escape(stest)));
| }
|
| private final static String[] hex = { "00", "01", "02", "03", "04", "05",
| "06", "07", "08", "09", "0A", "0B", "0C", "0D", "0E", "0F", "10",
| "11", "12", "13", "14", "15", "16", "17", "18", "19", "1A", "1B",
| "1C", "1D", "1E", "1F", "20", "21", "22", "23", "24", "25", "26",
| "27", "28", "29", "2A", "2B", "2C", "2D", "2E", "2F", "30", "31",
| "32", "33", "34", "35", "36", "37", "38", "39", "3A", "3B", "3C",
| "3D", "3E", "3F", "40", "41", "42", "43", "44", "45", "46", "47",
| "48", "49", "4A", "4B", "4C", "4D", "4E", "4F", "50", "51", "52",
| "53", "54", "55", "56", "57", "58", "59", "5A", "5B", "5C", "5D",
| "5E", "5F", "60", "61", "62", "63", "64", "65", "66", "67", "68",
| "69", "6A", "6B", "6C", "6D", "6E", "6F", "70", "71", "72", "73",
| "74", "75", "76", "77", "78", "79", "7A", "7B", "7C", "7D", "7E",
| "7F", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89",
| "8A", "8B", "8C", "8D", "8E", "8F", "90", "91", "92", "93", "94",
| "95", "96", "97", "98", "99", "9A", "9B", "9C", "9D", "9E", "9F",
| "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", "A8", "A9", "AA",
| "AB", "AC", "AD", "AE", "AF", "B0", "B1", "B2", "B3", "B4", "B5",
| "B6", "B7", "B8", "B9", "BA", "BB", "BC", "BD", "BE", "BF", "C0",
| "C1", "C2", "C3", "C4", "C5", "C6", "C7", "C8", "C9", "CA", "CB",
| "CC", "CD", "CE", "CF", "D0", "D1", "D2", "D3", "D4", "D5", "D6",
| "D7", "D8", "D9", "DA", "DB", "DC", "DD", "DE", "DF", "E0", "E1",
| "E2", "E3", "E4", "E5", "E6", "E7", "E8", "E9", "EA", "EB", "EC",
| "ED", "EE", "EF", "F0", "F1", "F2", "F3", "F4", "F5", "F6", "F7",
| "F8", "F9", "FA", "FB", "FC", "FD", "FE", "FF" };
|
| private final static byte[] val = { 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x00, 0x01,
| 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
| 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F };
|
| /**
| * 编码
| *
| * @param s
| * @return
| */
| public static String escape(String s) {
| StringBuffer sbuf = new StringBuffer();
| int len = s.length();
| for (int i = 0; i < len; i++) {
| int ch = s.charAt(i);
| if ('A' <= ch && ch <= 'Z') {
| sbuf.append((char) ch);
| } else if ('a' <= ch && ch <= 'z') {
| sbuf.append((char) ch);
| } else if ('0' <= ch && ch <= '9') {
| sbuf.append((char) ch);
| } else if (ch == '-' || ch == '_' || ch == '.' || ch == '!'
| || ch == '~' || ch == '*' || ch == '\'' || ch == '('
| || ch == ')') {
| sbuf.append((char) ch);
| } else if (ch <= 0x007F) {
| sbuf.append('%');
| sbuf.append(hex[ch]);
| } else {
| sbuf.append('%');
| sbuf.append('u');
| sbuf.append(hex[(ch >>> 8)]);
| sbuf.append(hex[(0x00FF & ch)]);
| }
| }
| return sbuf.toString();
| }
|
| /**
| * 解码 说明：本方法保证 不论参数s是否经过escape()编码，均能得到正确的“解码”结果
| *
| * @param s
| * @return
| */
| public static String unescape(String s) {
| if (StringUtils.isBlank(s)) {
| return "";
| }
| StringBuffer sbuf = new StringBuffer();
| int i = 0;
| int len = s.length();
| while (i < len) {
| int ch = s.charAt(i);
| if ('A' <= ch && ch <= 'Z') {
| sbuf.append((char) ch);
| } else if ('a' <= ch && ch <= 'z') {
| sbuf.append((char) ch);
| } else if ('0' <= ch && ch <= '9') {
| sbuf.append((char) ch);
| } else if (ch == '-' || ch == '_' || ch == '.' || ch == '!'
| || ch == '~' || ch == '*' || ch == '\'' || ch == '('
| || ch == ')') {
| sbuf.append((char) ch);
| } else if (ch == '%') {
| int cint = 0;
| if ('u' != s.charAt(i + 1)) {
| cint = (cint << 4) | val[s.charAt(i + 1)];
| cint = (cint << 4) | val[s.charAt(i + 2)];
| i += 2;
| } else {
| cint = (cint << 4) | val[s.charAt(i + 2)];
| cint = (cint << 4) | val[s.charAt(i + 3)];
| cint = (cint << 4) | val[s.charAt(i + 4)];
| cint = (cint << 4) | val[s.charAt(i + 5)];
| i += 5;
| }
| sbuf.append((char) cint);
| } else {
| sbuf.append((char) ch);
| }
| i++;
| }
| return sbuf.toString();
| }
| }
|
|
