java反射创建字符串_Java反射通过类名字符串创建实例（带参数并判断参数类型）...

private Object newObjectInstanceWithParams(String classname, Object[] params) {

Object instance = null; try {

Class classType = Class.forName(classname);

Constructor>[] consts = classType.getConstructors();

Constructor> constructor = null;for(int i = 0; i < consts.length; i++) { int paramsLength = consts[i].getParameterAnnotations().length; //判断多少个参数，我想在这添加参数的类型，因为有一个类的2个构造函数都要2个参，但是类型不同if(paramsLength == params.length) {

constructor = consts[i]; break;

}

} if(constructor != null) {

Class>[] type = constructor.getParameterTypes();

instance = classType.getConstructor(type).newInstance(params);

}

} catch (ClassNotFoundException e) {// TODO Auto-generated catch block

e.printStackTrace();

} catch (InstantiationException e) {// TODO Auto-generated catch block

e.printStackTrace();

} catch (IllegalAccessException e) {// TODO Auto-generated catch block

e.printStackTrace();

} catch (IllegalArgumentException e) {// TODO Auto-generated catch block

e.printStackTrace();

} catch (InvocationTargetException e) {// TODO Auto-generated catch block

e.printStackTrace();

} catch (NoSuchMethodException e) {// TODO Auto-generated catch block

e.printStackTrace();

} catch (SecurityException e) {// TODO Auto-generated catch block

e.printStackTrace();

}

return instance;

}

我应该怎么获得并判断参数的类型？谢谢！！~