如何使用thymeleaf和spring填充带有列表的下拉列表

这就是我填充下拉列表的方式。我认为这可能有助于你了解它。

Controller

List<Operator> operators =  operatorService.getAllOperaors()model.addAttribute("operators", operators);

Model

  @Entity  @Table(name = "operator")  public class Operator {    @Id    @GeneratedValue(strategy = GenerationType.IDENTITY)    @Column(name = "id")    @JsonIgnore    private Long id;    @NotBlank(message="operator Name cannot be empty")    @Column(name = "operator_name", nullable = false)    private String operatorName;    getters and setters ...}

View

<div >    <select  th:field="${operator.opeId}"  id="dropOperator">    <option value="0">select operator</option>    <option th:each="operator : ${operators}" th:value="${operator.id}" th:text="${operator.operatorName}"></option>    </select></div>