Question

我需要循环进入路线中的点集合我有这样的东西：

<tr th:if="${routes!=null}" th:each="route : ${routes}">
            <td><span th:text="${route?.name}"> name </span></td>
            <td><span th:text="${route?.pointsForRoute}"> pointsForRoute </span></td>
            <td><span th:text="${route?.routeLength}"> routeLength </span></td>
            <td><span th:text="${route?.heightDiffrence}"> heightDiffrence </span></td>
            <tr th:if="${route.points!=null}" th:each="point : {route?.points}">
            <td><span th:text="${point?.name}"> name </span></td>
        </tr>

我得到的原因是：org.thymeleaf.exceptions.TemplateProcessingException：无法解析为每个：“ point：{route？.points}”（模板：“ show-routes”-第41行，第51栏）< / p>

路线类别：

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
int id;

@Column(name="name")
String name;

@Column(name="points")
int pointsForRoute;

@Column(name="length")
double routeLength;

@Column(name="heightDiffrence")
int heightDiffrence;

@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.REFRESH, CascadeType.PERSIST, CascadeType.MERGE, CascadeType.DETACH})
@JoinTable(name = "PunktyTrasy",
joinColumns = @JoinColumn(name="idT"),
inverseJoinColumns = @JoinColumn(name = "idP"))
private List<Point> points = new ArrayList<>();

谢谢您的帮助！

Answer 1

您在th：each =“ point：{route？.points}”中忘记了$ 所以替换

th:each="point : {route?.points}"

使用

th:each="point : ${route?.points}"

遍历百里香的集合

1 个答案: