特殊字符

haoban-manage3-web/src/main/java/com/gic/haoban/manage/web/controller/MaterialController.java

 package com.gic.haoban.manage.web.controller;
 
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
 import com.gic.api.base.commons.Page;
 import com.gic.haoban.base.api.common.BasePageInfo;
 import com.gic.haoban.base.api.common.ServiceResponse;
@@ -12,15 +22,9 @@ import com.gic.haoban.manage.api.dto.MaterialCategoryDTO;
 import com.gic.haoban.manage.api.dto.MaterialDTO;
 import com.gic.haoban.manage.api.service.MaterialApiService;
 import com.gic.haoban.manage.web.errCode.HaoBanErrCode;
-import org.apache.commons.lang3.StringUtils;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import com.gic.haoban.manage.web.utils.EmojiFilterUtil;
 
-import java.util.Arrays;
-import java.util.List;
-import java.util.Objects;
+import cn.hutool.extra.emoji.EmojiUtil;
 
 @RestController
 public class MaterialController extends WebBaseController {
@@ -126,6 +130,10 @@ public class MaterialController extends WebBaseController {
 
         materialDTO.setStaffId(login.getClerkId());
         materialDTO.setStaffName(login.getClerkName());
+        String msg = this.checkEmoji(materialDTO.getMaterialContent()) ;
+        if(null != msg) {
+            return this.fail(msg) ;
+        }
         String materialTitle = materialDTO.getMaterialTitle();
         String categoryId = materialDTO.getCategoryId();
         Integer categoryType = materialDTO.getMaterialType();
@@ -185,6 +193,10 @@ public class MaterialController extends WebBaseController {
         materialDTO.setStaffId(login.getClerkId());
         materialDTO.setStaffName(login.getClerkName());
         String materialId = materialDTO.getMaterialId();
+        String msg = this.checkEmoji(materialDTO.getMaterialContent()) ;
+        if(null != msg) {
+            return this.fail(msg) ;
+        }
         MaterialDTO dto = materialApiService.selectMaterialById(materialId);
         if (dto == null) {
             return resultResponse(HaoBanErrCode.ERR_2);
@@ -262,5 +274,14 @@ public class MaterialController extends WebBaseController {
         }
         return resultResponse(HaoBanErrCode.ERR_1);
     }
-
+    
+    public String checkEmoji(String msg) {
+        if(StringUtils.isBlank(msg)) {
+            return null ;
+        }
+        if(EmojiFilterUtil.containsEmoji(msg)) {
+            return "保存失败，不支持特殊表情字符" ;
+        }
+        return null ;
+    }
 }

haoban-manage3-web/src/main/java/com/gic/haoban/manage/web/utils/EmojiFilterUtil.java

+package com.gic.haoban.manage.web.utils;
+
+import com.gic.commons.util.StringUtil;
+
+public class EmojiFilterUtil {
+    
+    
+    public static void main(String[] args) {
+        
+        System.out.println(filterEmoji("🈶️")); ;
+    }
+    
+    public static String filterEmojiLast(String content) {
+        byte[] conbyte = content.getBytes();
+        for (int i = 0; i < conbyte.length; i++) {
+            if ((conbyte[i] & 0xF8) == 0xF0) {
+                for (int j = 0; j < 4; j++) {
+                    conbyte[i + j] = 0x30;
+                }
+                i += 3;
+            }
+        }
+        content = new String(conbyte);
+        return filterEmoji(content.replaceAll("0000", ""));
+    }
+
+    private static String filterEmoji(String source) {
+        if (!containsEmoji(source)) {
+            return source;// 如果不包含，直接返回
+        }
+        // 到这里铁定包含
+        StringBuilder buf = null;
+
+        int len = source.length();
+
+        if (len > 20) {
+            return "*";
+        }
+
+        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);
+            } else {
+            }
+        }
+
+        if (buf == null) {
+            return source;// 如果没有找到 emoji表情，则返回源字符串
+        } else {
+            if (buf.length() == len) {// 这里的意义在于尽可能少的toString，因为会重新生成字符串
+                buf = null;
+                return source;
+            } else {
+                return buf.toString();
+            }
+        }
+
+    }
+
+    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));
+    }
+
+    // 判断表情符
+    public static boolean containsEmoji(String source) {
+        if (StringUtil.isBlank(source)) {
+            return false;
+        }
+        source = source.replaceAll("[\\ud800\\udc00-\\udbff\\udfff\\ud800-\\udfff]", "*");
+        int len = source.length();
+        for (int i = 0; i < len; i++) {
+            char codePoint = source.charAt(i);
+
+            if (isEmojiCharacter(codePoint)) {
+                // do nothing，判断到了这里表明，确认有表情字符
+                return true;
+            }
+        }
+        return false;
+    }
+
+}