struts2 action 保存应该怎么写？
Meal表：MealId,typeId,userId,num,ucomment //外键...
Meal表：MealId,typeId,userId,num,ucomment //外键关联MealType表：typeId,typeName,priceUser表：userId,userName,password,fullname,answer Meal.javaprivate Long mealId; private MealType mealType; private MealUser mealUser; private Long num; private String ucomment;//getter&setter MealType.javaprivate Long typeId; private String typeName; private Double price;//getter&setterUser.javaprivate Long userId; private String username; private String password; private String fullname; private String answer;//getter&setter addMeal.jsp<body> <s:form action="meal!orderMeal"> <s:textfield label="num" name="num" /> <br><s:select list="#session.MTList" listKey="typeId" listValue="typeName" name="typeId" label="订餐类型"> </s:select> <s:textfield label="ucomment" name="ucomment" /> <br> <s:submit value="确认"></s:submit> </s:form> </body>
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