最近在发微信公众号模版消息时遇到一个问题,如果用户的nickname中有表情,那么消息的字体颜色就会发生变化,像这样:
这个问题应该是微信的问题,所以我们不能解决掉这个bug,只能等腾讯爸爸来修复。唯一能做的就是去除掉字符串中的表情,下面是具体代码。
/**
* 判断字符串中是否含有表情
* @param source
* @return
*/
public static boolean containsEmoji(String source) {
int len = source.length();
boolean isEmoji = false;
for (int i = 0; i < len; i++) {
char hs = source.charAt(i);
if (0xd800 <= hs && hs <= 0xdbff) {
if (source.length() > 1) {
char ls = source.charAt(i + 1);
int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
if (0x1d000 <= uc && uc <= 0x1f77f) {
return true;
}
}
} else {
// non surrogate
if (0x2100 <= hs && hs <= 0x27ff && hs != 0x263b) {
return true;
} else if (0x2B05 <= hs && hs <= 0x2b07) {
return true;
} else if (0x2934 <= hs && hs <= 0x2935) {
return true;
} else if (0x3297 <= hs && hs <= 0x3299) {
return true;
} else if (hs == 0xa9 || hs == 0xae || hs == 0x303d
|| hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c
|| hs == 0x2b1b || hs == 0x2b50 || hs == 0x231a) {
return true;
}
if (!isEmoji && source.length() > 1 && i < source.length() - 1) {
char ls = source.charAt(i + 1);
if (ls == 0x20e3) {
return true;
}
}
}
}
return isEmoji;
}
/**
* 判断某个字符是不是表情
* @param codePoint
* @return
*/
private static boolean isEmojiCharacter(char codePoint) {
return (codePoint == 0x0) || (codePoint == 0x9) || (codePoint == 0xA)
|| (codePoint == 0xD)
|| ((codePoint >= 0x20) && (codePoint <= 0xD7FF))
|| ((codePoint >= 0xE000) && (codePoint <= 0xFFFD))
|| ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF));
}
/**
* 过滤掉字符串中的表情
* @param source
* @return
*/
public static String filterEmoji(String source) {
if (StringUtils.isBlank(source)) {
return source;
}
StringBuilder buf = null;
int len = source.length();
for (int i = 0; i < len; i++) {
char codePoint = source.charAt(i);
if (isEmojiCharacter(codePoint)) {
if (buf == null) {
buf = new StringBuilder(source.length());
}
buf.append(codePoint);
}
}
if (buf == null) {
return source;
} else {
if (buf.length() == len) {
buf = null;
return source;
} else {
return buf.toString();
}
}
}