html特殊字符转换（java）

/**
* 把文本编码为Html代码
* @param target
* @return 编码后的字符串
*/
public static String htmEncode(String target)
{
StringBuffer stringbuffer = new StringBuffer();
int j = target.length();
for (int i = 0; i < j; i++)
{
char c = target.charAt(i);
switch (c)
{
case 60:
stringbuffer.append("<");
break;
case 62:
stringbuffer.append(">");
break;
case 38:
stringbuffer.append("&");
break;
case 34:
stringbuffer.append(""");
break;
case 169:
stringbuffer.append("©");
break;
case 174:
stringbuffer.append("®");
break;
case 165:
stringbuffer.append("¥");
break;
case 8364:
stringbuffer.append("€");
break;
case 8482:
stringbuffer.append("™");
break;
case 13:
if (i < j - 1 && target.charAt(i + 1) == 10)
{
stringbuffer.append("<br>");
i++;
}
break;
case 32:
if (i < j - 1 && target.charAt(i + 1) == ' ')
{
stringbuffer.append("  ");
i++;
break;
}
default:
stringbuffer.append(c);
break;
}
}
retur