form属性：
private String innerId;
private TbCar tbCar = new TbCar();
private TbCustomer tbCustomer = new TbCustomer();
private String zhixing;
private String zulinPrice = "0";
private String yajin = "0";
private String preZujin = "0";
private String zulinQixian = "0";
private String chaoshiFee = "0";
private String lichengMeitian = "0";
private String outTimeFee = "0";
private String jingbanren;
private String yudingDate;
private String yudingTime;
private String demo;
bean属性：
private String innerId;
private TbCar tbCar = new TbCar();
private TbCustomer tbCustomer = new TbCustomer();
private String zhixing;
private Integer zulinPrice;
private Integer yajin;
private Integer preZujin;
private Integer zulinQixian;
private Integer chaoshiFee;
private Integer lichengMeitian;
private Integer outTimeFee;
private String jingbanren;
private Date yudingDate;
private Time yudingTime;
private String demo;
异常：java.lang.IllegalArgumentException: argument type mismatch。
问题补充：据自己推测应该是复制TbCar和TbCustomer时类型不匹配照成的。请大家帮帮忙。
------解决方案--------------------------------------------------------
如果源是String，目标对象是Integer。匹配难度是很小的。只要check正确也没有问题
如果源是String，目标对象是java.util.Date。你说怎么匹配？就算匹配了，风险也太大了。
这篇文章你可以读下，但是我不推荐你这么做。
http://blog.csdn.net/fableking/archive/2008/07/12/2644351.aspx