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Java 类型，反射，属性以及实体类操作工具类。

There is a newer version: 5.5-RELEASE

package com.gitee.feizns.reflect;

import java.lang.reflect.Field;

/**
 * @author feizns
 * @since 2019/5/12 0012
 */
public abstract class FieldUtils {

    /**
     * 获取属性
     * @param obj
     * @param name
     * @return
     */
    public static final Field get(Object obj, String name) {
        return get(obj.getClass(), name);
    }

    /**
     * 获取属性
     * @param type
     * @param name
     * @return
     */
    public static final Field get(Class type, String name) {
        while ( type != null ) {
            try {
                Field field = type.getDeclaredField(name);
                field.setAccessible(true);
                return field;
            } catch (NoSuchFieldException e) {
                type = type.getSuperclass();
            }
        }
        return null;
    }



    /**
     * 获取字段的值
     * @param obj
     * @param field
     * @param 
     * @return
     */
    public static final  T getData(Object obj, Field field) {
        try {
            field.setAccessible(true);
            return (T) field.get(obj);
        } catch (IllegalAccessException e) {
            return null;
        }
    }

    /**
     * 获取属性的值
     * @param obj
     * @param name
     * @param 
     * @return
     */
    public static final  T getData(Object obj, String name) {
        Field field = get(obj, name);
        return field != null ? getData(obj, field) : null;
    }

    /**
     * 获取字段的值
     * @param obj
     * @param name
     * @param resultType
     * @param 
     * @return
     */
    public static final  T getData(Object obj, String name, Class resultType) {
        Field field = get(obj, name);
        if ( field != null ) {
            Object data = getData(obj, field);
            if ( data != null && resultType.isAssignableFrom(data.getClass()) ) {
                return (T) data;
            }
        }
        return null;
    }

}