feature: 返回hint的信息使用list

server/src/main/java/com/pica/cloud/online/exam/analysis/server/service/impl/AntiSpamServiceImpl.java

@@ -212,7 +212,7 @@ public class AntiSpamServiceImpl implements AntiSpamService {
                  * 保留第一个label 记录所有的提示信息
                  */
                 int resLabel = 0;
-                StringBuilder hint = new StringBuilder();
+                List<String> hint = new ArrayList<>();
                 for (JsonElement labelElement : labelArray) {
                     JsonObject lObject = labelElement.getAsJsonObject();
                     int label = lObject.get("label").getAsInt();
@@ -224,10 +224,7 @@ public class AntiSpamServiceImpl implements AntiSpamService {
                         msg = getMessageByLabel(label);
                     }
                     for (JsonElement eleHint : hintArray) {
-                        hint.append(eleHint.getAsString()).append(",");
-                    }
-                    if (hint.length() >  0) {
-                        hint.deleteCharAt(hint.length() - 1);
+                        hint.add(eleHint.getAsString());
                     }
                 }