fix(故障案例)：列表空指针报错

amos-boot-module/amos-boot-module-api/amos-boot-module-equip-api/src/main/java/com/yeejoin/equipmanage/common/enums/EmergencyLevelEum.java

@@ -2,6 +2,7 @@ package com.yeejoin.equipmanage.common.enums;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
+import org.apache.commons.lang3.StringUtils;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -36,12 +37,14 @@ public enum EmergencyLevelEum {
     }
 
     public static String getNameByCode(String code) {
-        String str = null;
-        for(EmergencyLevelEum eum : EmergencyLevelEum.values()) {
-           if (code.equalsIgnoreCase(eum.getCode())) {
-               str = eum.getName();
-               break;
-           }
+        String str = "";
+        if (StringUtils.isNotEmpty(code)) {
+            for(EmergencyLevelEum eum : EmergencyLevelEum.values()) {
+                if (code.equalsIgnoreCase(eum.getCode())) {
+                    str = eum.getName();
+                    break;
+                }
+            }
         }
         return str;
     }