no message

src/main/java/thyyxxk/webserver/utils/CacheOnce.java

@@ -1,7 +1,10 @@
 package thyyxxk.webserver.utils;
 
 
+import com.alibaba.fastjson.JSON;
+
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.function.Function;
@@ -10,30 +13,64 @@ import java.util.function.Function;
 /**
  * @author Administrator
  */
-public class CacheOnce<T> {
+public class CacheOnce<V> {
     private final Map<String, Object> map = new HashMap<>();
 
     @SuppressWarnings("unchecked")
-    T get(String name) {
+    public V get(String name) {
         if (map.containsKey(name)) {
-            return (T) map.get(name);
+            return (V) map.get(name);
         }
         return null;
     }
 
     @SuppressWarnings("unchecked")
-    T get(String name, Function<String, Object> filter) {
+    public V get(String name, Function<String, Object> filter) {
+        Objects.requireNonNull(filter);
+
+        if (map.containsKey(name)) {
+            return (V) map.get(name);
+        }
+        Object object = filter.apply(name);
+        if (object == null) {
+            return null;
+        } else {
+            map.put(name, object);
+            return (V) (object);
+        }
+    }
+
+    public <T> T getObject(String name, Function<String, Object> filter, Class<T> tClass) {
+        Objects.requireNonNull(filter);
+
+        if (map.containsKey(name)) {
+            String oldOb = JSON.toJSONString(map.get(name));
+            return JSON.parseObject(oldOb, tClass);
+        }
+        Object object = filter.apply(name);
+        if (object == null) {
+            return null;
+        } else {
+            map.put(name, object);
+            String oldOb = JSON.toJSONString(object);
+            return JSON.parseObject(oldOb, tClass);
+        }
+    }
+
+    public <T> List<T> getList(String name, Function<String, Object> filter, Class<T> tClass) {
         Objects.requireNonNull(filter);
 
         if (map.containsKey(name)) {
-            return (T) map.get(name);
+            String oldOb = JSON.toJSONString(map.get(name));
+            return JSON.parseArray(oldOb, tClass);
         }
         Object object = filter.apply(name);
         if (object == null) {
             return null;
         } else {
             map.put(name, object);
-            return (T) (object);
+            String oldOb = JSON.toJSONString(object);
+            return JSON.parseArray(oldOb, tClass);
         }
     }