此代码未经测试。你可以试试看
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public Object functionName(String variableName, Object valueToBeSet, Object objectOfClass) throws IntrospectionException, NoSuchMethodException, SecurityException, illegalaccessexception, IllegalArgumentException, InvocationTargetException{
//I want to do the exact same thing as it does when setting the value using the below statement
//objectOfClass.setX(valueToBeSet);
Class clazz = objectOfClass.getClass();
BeanInfo beanInfo = Introspector.getBeanInfo(clazz, Object.class); // get bean info
PropertyDescriptor[] props = beanInfo.getPropertyDescriptors(); // gets all info about all properties of the class.
for (PropertyDescriptor descriptor : props) {
String property = descriptor.getDisplayName();
if(property.equals(variableName)) {
String setter = descriptor.getWriteMethod().getName();
Class parameterType = descriptor.getPropertyType();
Method setterMethod = clazz.getDeclaredMethod(setter, parameterType); //Using Method Reflection
setterMethod.invoke(objectOfClass, valueToBeSet);
}
}
return objectOfClass;
}
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