package com.stylefeng.guns.core.util;
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import java.beans.PropertyDescriptor;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.Date;
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/**
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* 对比两个对象的变化的工具类
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*
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* @author fengshuonan
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* @Date 2017/3/31 10:36
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*/
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public class SimpleContrast {
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//记录每个修改字段的分隔符
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public static final String separator = ";;;";
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/**
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* 比较两个对象,并返回不一致的信息
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*
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* @author stylefeng
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* @Date 2017/5/9 19:34
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*/
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public static String contrastObj(Object pojo1, Object pojo2) {
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String str = "";
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try {
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Class clazz = pojo1.getClass();
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Field[] fields = pojo1.getClass().getDeclaredFields();
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int i = 1;
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for (Field field : fields) {
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if ("serialVersionUID".equals(field.getName())) {
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continue;
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}
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PropertyDescriptor pd = new PropertyDescriptor(field.getName(), clazz);
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Method getMethod = pd.getReadMethod();
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Object o1 = getMethod.invoke(pojo1);
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Object o2 = getMethod.invoke(pojo2);
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if (o1 == null || o2 == null) {
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continue;
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}
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if (o1 instanceof Date) {
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o1 = DateUtil.getDay((Date) o1);
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}
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if (!o1.toString().equals(o2.toString())) {
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if (i != 1) {
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str += separator;
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}
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str += "字段名称" + field.getName() + ",旧值:" + o1 + ",新值:" + o2;
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i++;
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}
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return str;
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}
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}
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