JAVA属性拷贝，属性为空不进行拷贝

  最近在写项目的过程中，由于分层关系，经常会进行对象间的属性拷贝。但是源对象有空属性的又不想拷贝，不管是Apache的还是springframework的都会直接将空值也赋值过去。所以自己写了一个工具来实现，仅供参考：

public class BeanUtil {/*** source属性为空的不赋值给target* @param source* @param target*/public static void beanCopierNotNull(Object source,Object target){CopyConverter copyConverter = new CopyConverter(target);BeanCopier copier = BeanCopier.create(source.getClass(),target.getClass(),true);copier.copy(source,target,copyConverter);}
}

import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.apache.commons.lang.reflect.FieldUtils;
import org.springframework.cglib.core.Converter;
import org.springframework.util.ObjectUtils;/*** @author zhangweiqiang* @Description*/
public class CopyConverter implements Converter {private static Log log = LogFactory.getLog(CopyConverter.class);private Object targetObject;@Overridepublic Object convert(Object value, Class targetClass, Object context) {try {if (ObjectUtils.isEmpty(value)) {String name = StringUtils.substring(ObjectUtils.nullSafeToString(context), 3);String fiedName = StringUtils.uncapitalize(name);return FieldUtils.readField(targetObject, fiedName, true);}} catch (Exception e) {log.debug(ExceptionUtils.getFullStackTrace(e));}return value;}public CopyConverter(Object targetObject) {this.targetObject = targetObject;}
}