标签:commons false rip 清除 nbsp lombok ace class esc
利用beanutils清除javabean中所有非基本数据类型的属性值:
import com.google.gson.Gson; import lombok.Data; import org.apache.commons.beanutils.PropertyUtilsBean; import java.beans.PropertyDescriptor; @Data public class RequestParams { private String name; private Integer age; private int d; private byte bt; private char c; private short sd; private long ld; private float ft; private double db; private boolean tag; /* * 设置bean中属性值(非基本数据类型,请使用封装类)为null */ public void clear(){ try { PropertyUtilsBean propertyUtilsBean = new PropertyUtilsBean(); PropertyDescriptor[] descriptors = propertyUtilsBean.getPropertyDescriptors(this); for (int i = 0; i < descriptors.length; i++) { String property = descriptors[i].getName(); if (!"class".equals(property)) { if(!descriptors[i].getPropertyType().isPrimitive()){ propertyUtilsBean.setProperty(this,property,null); } } } } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { RequestParams requestParams = new RequestParams(); Gson gson = new Gson(); requestParams.setName("gh"); requestParams.setD(19); byte b = 101; requestParams.setBt(b); requestParams.setC(‘a‘); short s = 20; requestParams.setSd(s); requestParams.setLd(19L); requestParams.setFt(19.1F); requestParams.setDb(19.9); requestParams.setTag(false); requestParams.clear(); System.out.println(gson.toJson(requestParams)); } }
标签:commons false rip 清除 nbsp lombok ace class esc
原文地址:https://www.cnblogs.com/Eric-zhao/p/9728962.html