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main方法
BeanUtils的包路径
import org.springframework.beans.BeanUtils;
实验逻辑:
A,B两个类有相同和不相同的属性,
现在想把A中属性的值复制到B类中。
public static void main(String[] args) {
A aDto = new A();
B bDto = new B();
aDto.setA("a");
aDto.setB("b");
aDto.setC("c");
aDto.setD("d");
BeanUtils.copyProperties(aDto, bDto);
System.out.println(aDto.toString());
System.out.println(bDto.toString());
bDto.setE("e");
bDto.setF("f");
bDto.setI(1);
System.out.println(bDto.toString());
}
执行打印出来的结果:
A{a='a', b='b', c='c', d='d'}
B{a='a', c='c', d='d', e='null', f='null', i=0}
B{a='a', c='c', d='d', e='e', f='f', i=1}
A类
class A implements Serializable {
private static final long serialVersionUID = 1L;
private String a;
private String b;
private String c;
private String d;
public String getA() {
return a;
}
public void setA(String a) {
this.a = a;
}
public String getB() {
return b;
}
public void setB(String b) {
this.b = b;
}
public String getC() {
return c;
}
public void setC(String c) {
this.c = c;
}
public String getD() {
return d;
}
public void setD(String d) {
this.d = d;
}
@Override
public String toString() {
return "A{" +
"a='" + a + '\'' +
", b='" + b + '\'' +
", c='" + c + '\'' +
", d='" + d + '\'' +
'}';
}
}
B类
class B implements Serializable {
private static final long serialVersionUID = 1L;
private String a;
private String c;
private String d;
private String e;
private String f;
private int i;
public String getA() {
return a;
}
public void setA(String a) {
this.a = a;
}
public String getC() {
return c;
}
public void setC(String c) {
this.c = c;
}
public String getD() {
return d;
}
public void setD(String d) {
this.d = d;
}
public String getE() {
return e;
}
public void setE(String e) {
this.e = e;
}
public String getF() {
return f;
}
public void setF(String f) {
this.f = f;
}
public int getI() {
return i;
}
public void setI(int i) {
this.i = i;
}
@Override
public String toString() {
return "B{" +
"a='" + a + '\'' +
", c='" + c + '\'' +
", d='" + d + '\'' +
", e='" + e + '\'' +
", f='" + f + '\'' +
", i=" + i +
'}';
}