拦截器拦截emoji

pluss-common-bundle/src/main/java/cn/pluss/platform/util/Emoji.java

@@ -0,0 +1,91 @@
+package cn.pluss.platform.util;
+
+import org.apache.commons.lang3.StringUtils;
+
+public class Emoji {
+    /**
+     * @Description: 是否有表情判断
+     * @author zhaopeng
+     * @email zp152527@163.com
+     * @date 2018/8/24 18:27
+     */
+    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;
+    }
+
+    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));
+    }
+
+    /**
+     * @Description: 过滤emoji 或者 其他非文字类型的字符
+     * @author zhaopeng
+     * @email zp152527@163.com
+     * @date 2018/8/24 18:27
+     */
+    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();
+            }
+        }
+    }
+}