通过反射原理给Javabean变量赋值

通过反射原理给Javabean变量赋值

package com.bootdo.common.utils;

import java.lang.reflect.Field;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.bootdo.common.constant.FlagConstant;

import cn.hutool.core.date.DateUtil;


public class DataSupplyUtils {

	private final static Logger logger = LoggerFactory.getLogger(DataSupplyUtils.class);
	
	private final static String createBy = "createBy";
	private final static String createDate = "createDate";
	private final static String updateBy = "updateBy";
	private final static String updateDate = "updateDate";
	private final static String delFlag = "delFlag";
	
	public static  void deleteDataSupply(T t) {
		// 通过反射获取类的Class对象
		@SuppressWarnings("rawtypes")
		Class clazz = t.getClass();
		logger.info("删除对象{}时补充数据", clazz.getName());
		// 获取类型及字段属性
		try {
			Field delFlagField = clazz.getDeclaredField(delFlag);
			try {
				if (null != delFlagField) {
					delFlagField.setAccessible(true);
					delFlagField.set(t, FlagConstant.YES);
				}
			} catch (IllegalArgumentException e) {
				e.printStackTrace();
			} catch (IllegalAccessException e) {
				e.printStackTrace();
			}
		} catch (NoSuchFieldException e) {
			e.printStackTrace();
		} catch (SecurityException e) {
			e.printStackTrace();
		}
	}
	
	public static  void updateDataSupply(T t) {
		// 通过反射获取类的Class对象
		@SuppressWarnings("rawtypes")
		Class clazz = t.getClass();
		logger.info("编辑对象{}时补充数据", clazz.getName());
		// 获取类型及字段属性
		try {
			Field updateByField = clazz.getDeclaredField(updateBy);
			Field updateDateField = clazz.getDeclaredField(updateDate);
			try {
				if (null != updateByField) {
					updateByField.setAccessible(true);
					updateByField.set(t, ShiroUtils.getUsername());
				}
				if (null != updateDateField) {
					updateDateField.setAccessible(true);
					updateDateField.set(t, DateUtil.date());
				}
			} catch (IllegalArgumentException e) {
				e.printStackTrace();
			} catch (IllegalAccessException e) {
				e.printStackTrace();
			}
		} catch (NoSuchFieldException e) {
			e.printStackTrace();
		} catch (SecurityException e) {
			e.printStackTrace();
		}
	}
	
	public static  void createDataSupply(T t) {
		// 通过反射获取类的Class对象
        @SuppressWarnings("rawtypes")
		Class clazz = t.getClass();
        logger.info("创建对象{}时补充数据", clazz.getName());
        // 获取类型及字段属性
        try {
			Field createByField = clazz.getDeclaredField(createBy);
			Field createDateField = clazz.getDeclaredField(createDate);
			Field delFlagField = clazz.getDeclaredField(delFlag);
			try {
				if (null != createByField) {
					createByField.setAccessible(true);
					createByField.set(t, ShiroUtils.getUsername());
				}
				if (null != createDateField) {
					createDateField.setAccessible(true);
					createDateField.set(t, DateUtil.date());
				}
				if (null != delFlagField) {
					delFlagField.setAccessible(true);
					delFlagField.set(t, FlagConstant.NO);
				}
			} catch (IllegalArgumentException e) {
				e.printStackTrace();
			} catch (IllegalAccessException e) {
				e.printStackTrace();
			}
		} catch (NoSuchFieldException e) {
			e.printStackTrace();
		} catch (SecurityException e) {
			e.printStackTrace();
		}
	}
	
}