英文:
BeanUtilsBeans copyProperties not copying any fields
问题
以下是翻译好的内容：
我正在尝试使用Apache Commons BeanUtils 来将源对象的字段复制到目标对象。然而，在测试我的代码时，属性根本没有被复制。以下是我使用的代码：
public class CopyUtilTest {
public void copySourceToDestination(Object destinationObject, Object sourceObject) throws ApiException {
BeanUtilsBean beanUtil = new BeanUtilsBean();
try {
beanUtil.copyProperties(destinationObject, sourceObject);
} catch (InvocationTargetException | IllegalAccessException e) {
throw new ApiException("在使用[NullAwarePropertyCopy]复制属性时出错");
}
}
@Test
public void testCopy() throws ApiException {
A source = new A();
source.setA("John");
source.setB(23);
B target = new B();
copySourceToDestination(target, source);
System.out.println(target.getA() + " " + target.getB());
}
}
@Getter
@Setter
class A {
String a;
int b;
}
@Getter
@Setter
class B {
String a;
int b;
}
当我在 Junit 中运行此测试时，我得到的输出是 null 0，这明显表明字段没有被复制。为什么会出现这种情况呢？
英文:
I am trying to use Apache Commons BeanUtils to copy fields from a source object to a destination object. However, when testing my code, the properties are not copied at all. Following is the code I am using
public class CopyUtilTest {
public void copySourceToDestination(Object destinationObject, Object sourceObject) throws ApiException {
BeanUtilsBean beanUtil = new BeanUtilsBean();
try {
beanUtil.copyProperties(destinationObject, sourceObject);
} catch (InvocationTargetException | IllegalAccessException e) {
throw new ApiException("Error in copying properties using [NullAwarePropertyCopy]");
}
}
@Test
public void testCopy() throws ApiException {
A source = new A();
source.setA("John");
source.setB(23);
B target = new B();
copySourceToDestination(target, source);
System.out.println(target.getA()+" "+target.getB());
}
}
@Getter
@Setter
class A {
String a;
int b;
}
@Getter
@Setter
class B {
String a;
int b;
}
The output I get when running this test in Junit is null 0 which clearly indicates that the fields have not been copied. Why could this be happening?
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