前两天工作时需要将UCS2编码转为UTF-8编码在网页显示。网上找了好久没有好方法，后来还是同事给了一个自己的函数，顺利解决问题。把函数贴在这里，愿帮助遇到同样问题的工友们~
/**
* UCS2转码为utf-8
*
* @author Shangxj
* @param theString
* @return String
*/
public static String UCS2ToUtf8(String theString) {
// 对theString参数进行处理
String strU = "\u";
String resultStr = "";
int j = 0;
int length = theString.trim().length();
StringBuffer outBuffer = new StringBuffer(length);
try {
if (!(theString == null || theString.trim().equals(""))) {
for (int i = -4; i < length - 4; i = i + 4) {
String temStr = theString.trim().substring(i + 4, j + 4);
resultStr = resultStr + strU + temStr;
j = j + 4;
}
char aChar;
int len = resultStr.length();
for (int x = 0; x < len;) {
aChar = resultStr.charAt(x++);
if (aChar == '\') {
aChar = resultStr.charAt(x++);
if (aChar == 'u') {
// Read the xxxx
int value = 0;
for (int i = 0; i < 4; i++) {
aChar = resultStr.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;
default:
throw new IllegalArgumentException(
"Malformed \uxxxx encoding.");
}
}
outBuffer.append((char) value);
} else {
if (aChar == 't')
aChar = ' ';
else if (aChar == 'r')
aChar = 'r';
else if (aChar == 'n')
aChar = 'n';
else if (aChar == 'f')
aChar = 'f';
outBuffer.append(aChar);
}
} else
outBuffer.append(aChar);
}
}
} catch (StringIndexOutOfBoundsException siobe) {
siobe.printStackTrace();
}
return outBuffer.toString();
}
}