1 files changed, 59 insertions, 0 deletions
diff --git a/src/main/java/com/keuin/ohmyvanillamc/ReflectionUtils.java b/src/main/java/com/keuin/ohmyvanillamc/ReflectionUtils.java
new file mode 100644
index 0000000..253c89d
--- /dev/null
+++ b/src/main/java/com/keuin/ohmyvanillamc/ReflectionUtils.java
@@ -0,0 +1,59 @@
+package com.keuin.ohmyvanillamc;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+/**
+ * @Author 落叶飞翔的蜗牛
+ * @Date 2018/3/10
+ * @Description 常用反射函数
+ */
+public final class ReflectionUtils {
+
+    /**
+     * 获取私有成员变量的值
+     *
+     * @param instance
+     * @param filedName
+     * @return
+     */
+    public static Object getPrivateField(Object instance, String filedName) throws NoSuchFieldException, IllegalAccessException {
+        Field field = instance.getClass().getDeclaredField(filedName);
+        field.setAccessible(true);
+        return field.get(instance);
+    }
+
+    /**
+     * 设置私有成员的值
+     *
+     * @param instance
+     * @param fieldName
+     * @param value
+     * @throws NoSuchFieldException
+     * @throws IllegalAccessException
+     */
+    public static void setPrivateField(Object instance, String fieldName, Object value) throws NoSuchFieldException, IllegalAccessException {
+        Field field = instance.getClass().getDeclaredField(fieldName);
+        field.setAccessible(true);
+        field.set(instance, value);
+    }
+
+    /**
+     * 访问私有方法
+     *
+     * @param instance
+     * @param methodName
+     * @param classes
+     * @param args
+     * @return
+     * @throws NoSuchMethodException
+     * @throws InvocationTargetException
+     * @throws IllegalAccessException
+     */
+    public static Object invokePrivateMethod(Object instance, String methodName, Class[] classes, Object... args) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        Method method = instance.getClass().getDeclaredMethod(methodName, classes);
+        method.setAccessible(true);
+        return method.invoke(instance, args);
+    }
+}
+\ No newline at end of file