JAva漢字とunicodeの相互回転
9078 ワード
package com.imiansha.baseframe.commom.util;
import java.lang.Character.UnicodeBlock;
/** * @ClassName UnicodeTool.java * @Description : unicode * @author leon 2015 12 11 10:57:28 * @CopyRight */
public class UnicodeTool {
/** * unicode * * @author leon 2016-3-15 * @param inStr * @return */
public static String encodeUnicode(String inStr) {
char[] myBuffer = inStr.toCharArray();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < inStr.length(); i++) {
char ch = myBuffer[i];
if (ch < 10) {
sb.append("\\u000" + (int) ch);
continue;
}
UnicodeBlock ub = UnicodeBlock.of(ch);
if (ub == UnicodeBlock.BASIC_LATIN) {
//
sb.append(myBuffer[i]);
} else if (ub == UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
//
int j = myBuffer[i] - 65248;
sb.append((char) j);
} else {
//
int s = myBuffer[i];
String hexS = Integer.toHexString(Math.abs(s));
String unicode = "\\u" + hexS;
sb.append(unicode.toLowerCase());
}
}
return sb.toString();
}
/** * unicode * * @author leon 2016-3-15 * @param theString * @return */
public static String decodeUnicode(String theString) {
char aChar;
int len = theString.length();
StringBuffer outBuffer = new StringBuffer(len);
for (int x = 0; x < len;) {
aChar = theString.charAt(x++);
if (aChar == '\\') {
aChar = theString.charAt(x++);
if (aChar == 'u') {
// Read the xxxx
int value = 0;
for (int i = 0; i < 4; i++) {
aChar = theString.charAt(x++);
switch (aChar) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
value = (value << 4) + aChar - '0';
break;
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
value = (value << 4) + 10 + aChar - 'a';
break;
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
value = (value << 4) + 10 + aChar - 'A';
break;
default:
throw new IllegalArgumentException("Malformed \\uxxxx encoding.");
}
}
outBuffer.append((char) value);
} else {
if (aChar == 't') aChar = '\t';
else if (aChar == 'r') aChar = '\r';
else if (aChar == 'n') aChar = '
';
else if (aChar == 'f') aChar = '\f';
outBuffer.append(aChar);
}
} else outBuffer.append(aChar);
}
return outBuffer.toString();
}
}