fix: 优化报错

src/main/java/com/xydl/cac/util/IcdXmlUtil.java

@@ -15,7 +15,12 @@ public class IcdXmlUtil {
     public static LinkedHashMap<String, IcdConfigType> loadIcdType(String xml) throws Exception {
         XmlMapper xmlMapper = XmlMapper.builder()
                 .build();
-        JsonNode root = xmlMapper.readTree(xml);
+        JsonNode root;
+        try {
+            root = xmlMapper.readTree(xml);
+        } catch (Exception ex) {
+            throw new Exception("ICD文件解析失败，请上传正确的xml类型文件");
+        }
         LinkedHashMap<String, IcdConfigType> result = processTypeRoot(root);
         return result;
     }