2
下拉列表
應用:休眠,春季3.0 MVC,JSP(使用彈簧形式)創建使用Spring,Hibernate的,JSP
要求:要使用Hibernate從數據庫中選擇一個表中的數據並顯示,作爲一個掇使用Spring MVC在JSP頁面下拉列表。
代碼: 休眠/ DAO代碼是
美食類
@Entity
@Table(name = "cuisine")
public class Cuisine {
@Id
@Column(name = "id")
private int id;
@Column(name = "name")
private String name;
.. getters and setters
RecipeDaoImpl類
public List<Cuisine> getCuisine() {
String hql = "SELECT id, name FROM Cuisine";
return getSession().createQuery(hql).list();
}
Spring MVC的
@Controller
public class RecipeController {
...
@RequestMapping("/add")
public String newRecipe(Map<String, Object> map) {
/* Get cuisine list and new object for cuisine */
List<Cuisine> cuisines = recipeServices.getCuisine();
System.out.println(cuisines);
map.put("cuisineList", cuisines);
map.put("cuisine", new Cuisine());
return "recipes/new";
}
JSP頁面:
<%@ taglib prefix="sf" uri="http://www.springframework.org/tags/form"%>
<tr>
<th><sf:label path="cuisine">Cuisine</sf:label></th>
</tr>
<tr>
<td><sf:select path="${cuisineList}">
<sf:options items="${cuisine}"></sf:options>
</sf:select></td>
</tr>
做下去,我收到以下錯誤:
org.springframework.beans.NotReadablePropertyException: Invalid property '[Cuisine [id=1, name=Continental][id=2, name=Italian]' of bean class [com.recipe.tables.Recipe]: Bean property '[Cuisine [id=1, name=Continental][id=2, name=Italian]' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:729)
org.springframework.beans.BeanWrapperImpl.getPropertyValue(BeanWrapperImpl.java:721)
org.springframework.validation.AbstractPropertyBindingResult.getActualFieldValue(AbstractPropertyBindingResult.java:99)
org.springframework.validation.AbstractBindingResult.getFieldValue(AbstractBindingResult.java:219)
org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:120)
可有人請建議如何解決這一問題?我檢查了幾篇文章,試圖複製它們,但沒有運氣。
謝謝..但它不給價值「[ID = 1,名稱=大陸]」,在下拉框中..什麼辦法可以先手名在JSP頁面中? – Sandeep 2014-10-22 02:39:29
非常感謝指針..我已經添加「 」,它的工作.. –
Sandeep
2014-10-22 04:30:48