数据库字段暴露前端安全需求修改

src/main/java/org/sss/presentation/noui/util/NoUiPresentationUtil.java

@@ -73,7 +73,7 @@ public class NoUiPresentationUtil {
 							for (Map<String, Object> m : valueList) {
 								IModule module = moduleList.add();
 								for (Map.Entry<String, Object> entry : m.entrySet())
-									handleDatafield(context, (IDatafield<Object>) module.get(entry.getKey()), entry.getValue());
+									handleDatafield(context, (IDatafield<Object>) module.get(changeForELCS(entry.getKey())), entry.getValue());
 							}
 						}
 					}
@@ -257,7 +257,7 @@ public class NoUiPresentationUtil {
 				IModule module = moduleList.get(index);
 				Collection<IDatafield> datafields = module.getDatafields();
 				for (IDatafield<Object> datafield : datafields) {
-					map.put(datafield.getName(), handle(datafield.getValue(), datafield));
+					map.put(changeForELCS(datafield.getName()), handle(datafield.getValue(), datafield));
 				}
 				list.add(map);
 			}
@@ -349,4 +349,46 @@ public class NoUiPresentationUtil {
 		return sysmodBytes;
 	}
 
+	//偏移 头4 尾7
+	public static String changeForELCS(String str){
+		String btw_str = str.substring(1,str.length()-1);
+		String head = change(str.charAt(0),4);
+		String tail = change(str.charAt(str.length()-1),7);
+		return head + btw_str + tail;
+	}
+
+	//根据偏移量转换字符
+	public static String change(char ch,int offset){
+		int before = ch;
+		int after;
+		//a-z
+		if(ch >=97 && ch <= 122){
+			if(before+offset <= 122){
+				after = before+offset;
+			}else{
+				after = (before+offset)%122+96;
+			}
+			return String.valueOf((char)after);
+		}
+		//A-Z
+		if(ch >=65 && ch <= 90){
+			if(before+offset <= 90){
+				after = before+offset;
+			}else{
+				after = (before+offset)%90+64;
+			}
+			return String.valueOf((char)after);
+		}
+		//0-9
+		if(ch >=48 && ch <= 57){
+			if(before+offset <= 57){
+				after = before+offset;
+			}else{
+				after = (before+offset)%57+47;
+			}
+			return String.valueOf((char)after);
+		}
+		return String.valueOf(ch);
+	}
+
 }