public class BeanCopierTest {static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");public static void main(String[] args) {
//        sameCopy();
//        difCopy();
        difCopyConvert();
//        noSetterCopy();
//        lessSetterCopy();
//        lessSetterCopy2();
    }// 属性名称、类型都相同，成功复制public static void sameCopy() {one one = new one();one.setId(1);one.setName("one");final BeanCopier copier = BeanCopier.create(one.class, two.class, false);two two = new two();copier.copy(one, two, null);System.out.println(one.toString());System.out.println(two.toString());}// 属性名称相同,类型不同，类型不同的不能复制public static void difCopy() {one one = new one();one.setId(1);one.setName("one");final BeanCopier copier = BeanCopier.create(one.class, oneDif.class, false);oneDif oneDif = new oneDif();copier.copy(one, oneDif, null);System.out.println(one.toString());System.out.println(oneDif.toString());}// 属性名称相同,类型不同的解决方法，使用convert，注意要写上类型相同的情况public static void difCopyConvert() {one one = new one();one.setId(1);one.setName("one");final BeanCopier copier = BeanCopier.create(one.class, oneDif.class, true);oneDif oneDif = new oneDif();copier.copy(one, oneDif, new Converter() {@Overridepublic Object convert(Object value, Class target, Object context) {if (value instanceof Integer) {return (Integer) value;} else if (value instanceof Timestamp) {Timestamp date = (Timestamp) value;return sdf.format(date);} else if (value instanceof BigDecimal) {BigDecimal bd = (BigDecimal) value;return bd.toPlainString();} else if (value instanceof String) {return "" + value;}return null;}});System.out.println(one.toString());System.out.println(oneDif.toString());}// 目标无setter，不能复制，注意此处，网上说会报错，但是新版本并无此报错public static void noSetterCopy() {one one = new one();one.setId(1);one.setName("one");final BeanCopier copier = BeanCopier.create(one.class, oneNoSetter.class, false);oneNoSetter oneNoSetter = new oneNoSetter();copier.copy(one, oneNoSetter, null);System.out.println(one.toString());System.out.println(oneNoSetter.toString());}// 源无setter，都不能赋值了好吧？public static void noSetterCopy2() {}// 目标少setter，少setter的没值public static void lessSetterCopy() {one one = new one();one.setId(1);one.setName("one");final BeanCopier copier = BeanCopier.create(one.class, oneLessSetter.class, false);oneLessSetter oneLessSetter = new oneLessSetter();copier.copy(one, oneLessSetter, null);System.out.println(one.toString());System.out.println(oneLessSetter.toString());}// 源少setter，只有有setter的可以复制public static void lessSetterCopy2() {oneLessSetter oneLessSetter = new oneLessSetter();
//        oneLessSetter.setId(1);oneLessSetter.setName("one");final BeanCopier copier = BeanCopier.create(oneLessSetter.class, one.class, false);one one = new one();copier.copy(oneLessSetter, one, null);System.out.println(oneLessSetter.toString());System.out.println(one.toString());}
}

public class one {public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}private int id;private String name;@Overridepublic String toString() {return " one{  "+ " \n id : " + this.id+ " \n name : " + this.name+"  \n }";}
}

public class two {private int id;private String name;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}@Overridepublic String toString() {return " two{  "+ " \n id : " + this.id+ " \n name : " + this.name+ "  \n }";}
}

public class oneDif {private Integer id;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}private String name;@Overridepublic String toString() {return " oneDif{  "+ " \n id : " + this.id+ " \n name : " + this.name+ " \n }";}
}

public class oneLessSetter {public int getId() {return id;}public String getName() {return name;}private int id;public void setName(String name) {this.name = name;}private String name;@Overridepublic String toString() {return " oneLessSetter{  "+ " \n id : " + this.id+ " \n name : " + this.name+ " \n }";}
}

package com.lgp.thinkinjavademos.demo.BeanCopier;/*** @AUTHOR lgp* @DATE 2018/6/25 16:06* @DESCRIPTION**/
public class oneNoSetter {public int getId() {return id;}public String getName() {return name;}private int id;private String name;@Overridepublic String toString() {return " oneNoSetter{  "+ " \n id : " + this.id+ " \n name : " + this.name+ " \n }";}
}

public class CachedBeanCopier {//    创建过的BeanCopier实例放到缓存中，下次可以直接获取，提升性能static final Map<String, BeanCopier> BEAN_COPIERS = new HashMap<String, BeanCopier>();public static void copy(Object srcObj, Object destObj) {String key = genKey(srcObj.getClass(), destObj.getClass());BeanCopier copier = null;if (!BEAN_COPIERS.containsKey(key)) {copier = BeanCopier.create(srcObj.getClass(), destObj.getClass(), false);BEAN_COPIERS.put(key, copier);} else {copier = BEAN_COPIERS.get(key);}copier.copy(srcObj, destObj, null);}private static String genKey(Class<?> srcClazz, Class<?> destClazz) {return srcClazz.getName() + destClazz.getName();}
}