com.kould.utils.FieldUtils Maven / Gradle / Ivy
package com.kould.utils;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class FieldUtils {
private FieldUtils() {
throw new IllegalStateException("Utility Class!");
}
/**
* 类反射获取属性方法并解除安全检查
* @param clazz 目标Class
* @param fieldName 属性名
* @return Field 去除安全检查的属性
* @throws NoSuchFieldException 不匹配Field异常
*/
public static Field getFieldByNameAndClass(Class clazz, String fieldName) throws NoSuchFieldException {
Field field ;
try {
field = clazz.getDeclaredField(fieldName);
} catch (NoSuchFieldException e) {
//此处用于解决继承导致的getDeclaredField不能直接获取父类属性的问题
field = clazz.getSuperclass().getDeclaredField(fieldName);
}
field.setAccessible(true);
return field;
}
/**
* 获取目标class以及其class的父类属性一并返回
* @param clazz 目标Bean的class
* @return 该Bean所有的Field
*/
public static List getAllField(Class clazz) {
List fields = new ArrayList<>();
while (clazz != null) {
fields.addAll(new ArrayList<>(Arrays.asList(clazz.getDeclaredFields())));
clazz = clazz.getSuperclass();
}
return fields;
}
}