package com.shlanbao.tzsc.utils.tools;
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import org.springframework.beans.BeanUtils;
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import org.springframework.beans.BeanWrapper;
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import org.springframework.beans.BeanWrapperImpl;
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import org.springframework.stereotype.Component;
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import java.util.HashSet;
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import java.util.Set;
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public class CopyUtils {
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public static String[] getNullPropertyNames (Object source) {
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final BeanWrapper src = new BeanWrapperImpl(source);
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java.beans.PropertyDescriptor[] pds = src.getPropertyDescriptors();
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Set<String> emptyNames = new HashSet<String>();
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for(java.beans.PropertyDescriptor pd : pds) {
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Object srcValue = src.getPropertyValue(pd.getName());
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if (srcValue == null) emptyNames.add(pd.getName());
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}
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String[] result = new String[emptyNames.size()];
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return emptyNames.toArray(result);
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}
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/**
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* @Description: 从src赋值属性到target,忽略null属性
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* @Param: [src, target]
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* @return: void
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* @Author: sunzhen
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* @Date: 2019/10/21
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*/
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public static void copyProperties(Object src, Object target) {
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BeanUtils.copyProperties(src, target, getNullPropertyNames(src));
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}
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}
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