如果是数字的比较，需要做类型转换

src/main/java/com/supervision/utils/CalculationUtil.java

@@ -52,11 +52,14 @@ public class CalculationUtil {
         // 初始化SpEL解析器
         ExpressionParser parser = new SpelExpressionParser();
         StandardEvaluationContext context = new StandardEvaluationContext();
-        // 判断并转换变量类型
-        Object leftValue = parseOperand(leftOperand);
-        Object rightValue = parseOperand(rightOperand);
-        context.setVariable("leftOperand", leftValue);
-        context.setVariable("rightOperand", rightValue);
+        // 如果是数字的比较，需要做类型转换
+        if (leftOperand.equals(IndexRuleConstants.OPERATOR_EARLY) || leftOperand.equals(IndexRuleConstants.OPERATOR_LATE) || leftOperand.equals(IndexRuleConstants.OPERATOR_CONTAIN)) {
+            context.setVariable("leftOperand", leftOperand);
+            context.setVariable("rightOperand", rightOperand);
+        } else {
+            context.setVariable("leftOperand", parseOperand(leftOperand));
+            context.setVariable("rightOperand", parseOperand(rightOperand));
+        }
 
         // 计算结果
         return Boolean.TRUE.equals(parser.parseExpression(expression).getValue(context, Boolean.class));