Question

使用此代码

  <c:forEach var="row" varStatus="loop" items="${court.monday}">
<tr>
<c:choose>
<c:when test='${row eq "Free Court"}'>
<td class="inner">${loop.index} is Bookable </td>
</c:when>
<c:otherwise>
<td class="inner">${row}</td>
</c:otherwise>
</c:choose>
</tr>
</c:forEach>

基本上，我有一个Timetable对象，其中包含7个字符串数组列表。我可以只用

遍历列表

<td class="inner">${row}</td>

但我想检查行值是否等于'Free Court'。如果是，则显示链接。如果没有，则显示事件。我收到以下错误。

'$ {court.monday}'在类型java.lang.String上找不到属性'monday'

我认为这与将ArrayList与String进行比较有关，但我尝试过像row [loop.index]这样的东西（如果我输出它就会正确显示。

这是控制器

@RequestMapping(value = "/gotoCourt", method=RequestMethod.POST)
    public String chooseCourt(Model model, HttpServletRequest request){
        model.addAttribute("court", timetableService.getById(request.getParameter("courtID")));
        return "court";
    }

时间表类是

public class MonaleenTTV1 implements Timetable {

    @Id
    @GeneratedValue
    private int id;

    @Size(min=5, max=10, message="Court must be between 5 and 10 characters",groups={PersistenceValidationGroup.class, FormValidationGroup.class})
    private String name;

    @NotNull
    //@Min(value = 1, message="Value must be 1 or greater")
    private int slots;

    private int startTime;

    private int endTime;

    private boolean enabled;

    @ElementCollection
    @CollectionTable (name = "monday", joinColumns=@JoinColumn(name="id"))
    List<String> monday;

    @ElementCollection
    @CollectionTable (name = "tuesday", joinColumns=@JoinColumn(name="id"))
    List<String> tuesday;

    @ElementCollection
    @CollectionTable (name = "wednesday", joinColumns=@JoinColumn(name="id"))
    List<String> wednesday;

    @ElementCollection
    @CollectionTable (name = "thursday", joinColumns=@JoinColumn(name="id"))
    List<String> thursday;

    @ElementCollection
    @CollectionTable (name = "friday", joinColumns=@JoinColumn(name="id"))
    List<String> friday;

    @ElementCollection
    @CollectionTable (name = "saturday", joinColumns=@JoinColumn(name="id"))
    List<String> saturday;

    @ElementCollection
    @CollectionTable (name = "sunday", joinColumns=@JoinColumn(name="id"))
    List<String> sunday;

Answer 1

唉！我的代码没有错。重新启动Tomcat使它工作！：）

JSTL String与ArrayList元素比较

1 个答案: