远程函数：新增根据路径从当前对象取值的方法 getArgVal(String)，方便 Long uid = getArgVal("User/id") 这样取值

Author: TommyLemon

APIJSONORM/src/main/java/apijson/orm/AbstractFunctionParser.java

@@ -156,6 +156,24 @@ public AbstractFunctionParser setCurrentObject(@NotNull JSONObject currentObject
 		return this;
 	}
 
+	/**根据路径从当前对象取值
+	 * @param path
+	 * @return
+	 * @param <T>
+	 */
+	public <T extends Object> T getArgVal(String path) {
+		return getArgVal(getCurrentObject(), path);
+	}
+	/**根据路径从对象 obj 中取值
+	 * @param obj
+	 * @param path
+	 * @return
+	 * @param <T>
+	 */
+	public static <T extends Object> T getArgVal(JSONObject obj, String path) {
+		return AbstractParser.getValue(obj, StringUtil.splitPath(path));
+	}
+
 
 	/**反射调用
 	 * @param function 例如get(object,key)，参数只允许引用，不能直接传值

APIJSONORM/src/main/java/apijson/orm/AbstractParser.java

@@ -1683,10 +1683,10 @@ else if (join != null){
 	 * @param pathKeys
 	 * @return
 	 */
-	protected static Object getValue(JSONObject parent, String[] pathKeys) {
+	public static <V extends Object> V getValue(JSONObject parent, String[] pathKeys) {
 		if (parent == null || pathKeys == null || pathKeys.length <= 0) {
 			Log.w(TAG, "getChild  parent == null || pathKeys == null || pathKeys.length <= 0 >> return parent;");
-			return parent;
+			return (V) parent;
 		}
 
 		//逐层到达child的直接容器JSONObject parent
@@ -1698,7 +1698,7 @@ protected static Object getValue(JSONObject parent, String[] pathKeys) {
 			parent = getJSONObject(parent, pathKeys[i]);
 		}
 
-		return parent == null ? null : parent.get(pathKeys[last]);
+		return parent == null ? null : (V) parent.get(pathKeys[last]);
 	}