UndeclaredThrowableException

在java中子类方法不能抛出被父类更广泛的异常，或者当捕捉一行代码有多个catch时可以使用逻辑或 |
如下：（结果还是不行就尝试重新部署一次项目）

Map<String, String[]> map = request.getParameterMap();
        Contact contact = new Contact();
        try {
            BeanUtils.populate(contact,map);
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }


//使用以下优化
Map<String, String[]> map = request.getParameterMap();
        Contact contact = new Contact();
        try {
            BeanUtils.populate(contact,map);
        } catch (IllegalAccessException| InvocationTargetException e) {
            e.printStackTrace();
        }

//或者直接一个Exception异常
Map<String, String[]> map = request.getParameterMap();
        Contact contact = new Contact();
        try {
            BeanUtils.populate(contact,map);
        } catch (Exception e) {
            e.printStackTrace();
        }