MVC模式

public?class?GoodsAction?extends?ActionSupport{

private?IService?service;

private?GoodsVO?vo;

public?GoodsVO?getVo()?{

return?vo;

}

public?void?setVo(GoodsVO?vo)?{

this.vo?=?vo;

}

public?IService?getService()?{

return?service;

}

public?void?setService(IService?service)?{

this.service?=?service;

}

public?String?execute()?throws?Exception?{

//?TODO?Auto-generated?method?stub

System.out.println(“GoodsAction執行了”);

return?super.execute();

}

public?String?addGoods()?throws?Exception?{

//?TODO?Auto-generated?method?stub

System.out.println(“addGoods執行了”);

String?name=vo.getGoods_name();

double?price=vo.getGoods_price();

int?number=vo.getGoods_number();

System.out.println(name+price+number);

GoodsVO?vo1=new?GoodsVO();

vo1.setGoods_name(name);

vo1.setGoods_price(price);

vo1.setGoods_number(number);

service.addGoods(vo1);//出現問題的一行

return?SUCCESS;

}

}

——————————————————————————————————————————

一個包下

public?interface?IService?{

public?void?addGoods(GoodsVO?vo);

}

public?class?Service?implements?IService{

private?SysDao?dao;

public?SysDao?getDao()?{

return?dao;

}

public?void?setDao(SysDao?dao)?{

this.dao?=?dao;

}

@Override

public?void?addGoods(GoodsVO?vo)?{

dao.addTgoods(vo);

}

}

—

dao包

package?com.dao;

public?interface?SysDao?{

/**

*?保存或更新指定對象

*?@param

*?@return

*/

public?void?addTgoods(Object?ob);

}

package?com.dao;

import?org.springframework.orm.hibernate3.HibernateTemplate;

public?class?SysDaoImp?implements?SysDao{

private?HibernateTemplate?hibernateTemplate;

public?void?setHibernateTemplate(HibernateTemplate?hibernateTemplate)?{

this.hibernateTemplate?=?hibernateTemplate;

}

@Override

public?void?addTgoods(Object?ob)?{

//?TODO?Auto-generated?method?stub

hibernateTemplate.save(ob);

}

}

解決方案：40分

你用個int?count=hibernateTemplate.save(vo);接受一下，然后輸出看看是1還是0

總結

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