/**
* java实现javascript中的escape和unescape函数
* 多用于URL编码与解码
*/
public class EscapeUnescape {
int i;
char j;
tmp.ensureCapacity(src.length() * 6);
for (i = 0; i < src.length(); i++) {
j = src.charAt(i);
tmp.append(j);
else if (j < 256) {
tmp.append("%");
if (j < 16)
tmp.append("0");
tmp.
append(Integer.
toString(j,
16));
} else {
tmp.append("%u");
tmp.
append(Integer.
toString(j,
16));
}
}
return tmp.toString();
}
tmp.ensureCapacity(src.length());
int lastPos = 0, pos = 0;
char ch;
while (lastPos < src.length()) {
pos = src.indexOf("%", lastPos);
if (pos == lastPos) {
if (src.charAt(pos + 1) == 'u') {
src.substring(pos + 2, pos + 6), 16);
tmp.append(ch);
lastPos = pos + 6;
} else {
src.substring(pos + 1, pos + 3), 16);
tmp.append(ch);
lastPos = pos + 3;
}
} else {
if (pos == -1) {
tmp.append(src.substring(lastPos));
lastPos = src.length();
} else {
tmp.append(src.substring(lastPos, pos));
lastPos = pos;
}
}
}
return tmp.toString();
}
public static void main
(String[] args
) {
System.
out.
println("编码: " + escape
(tmp
));
System.
out.
println("解码: " + unescape
(tmp
));
}
}