此代码未经测试。你可以试试看
要导入的类
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;
方法
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; }
