From 87323a0b0d5039b0c95d8b7d18e5426d8ebd1eb8 Mon Sep 17 00:00:00 2001
From: jinpengyong <jpy123456>
Date: Wed, 27 Oct 2021 14:09:48 +0800
Subject: [PATCH] 城市aqi数据接口变更

---
 screen-common/src/main/java/com/moral/util/UnitConvertUtils.java |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/screen-common/src/main/java/com/moral/util/UnitConvertUtils.java b/screen-common/src/main/java/com/moral/util/UnitConvertUtils.java
index 5bdf91f..7d918da 100644
--- a/screen-common/src/main/java/com/moral/util/UnitConvertUtils.java
+++ b/screen-common/src/main/java/com/moral/util/UnitConvertUtils.java
@@ -31,7 +31,7 @@
             */
     public static String calculate(String value, String formula) {
         if(ObjectUtils.isEmpty(formula))
-            return value;
+            return null;
         ScriptEngine jse = new ScriptEngineManager().getEngineByName("JavaScript");
         formula = formula.replaceAll("\\{0\\}", value);
         Double result = null;

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