是否可以以更简单的方式输出包含DB值的下拉列表？

Question

这种方式并不是最好的。我正在寻找更好的方法。没有列表可以吗？

我的PageController：

public class CreateUserPageController {

@Autowired
private UserServiceImpl userServiceImpl;


@RequestMapping(value = "/create-user", method = RequestMethod.GET)
public ModelAndView showForm() {
    ModelAndView model = new ModelAndView("admin/create-user");
    model.addObject("user", new User());
    UserRoleDTO[] roles = UserRoleDTO.values();
    List<String> roleNames = new ArrayList<>();
    for (UserRoleDTO role : roles) {
        roleNames.add(role.getName());
    }
    model.addObject("roleNames", roleNames);
    return model;
}

@RequestMapping(value = "/create-user", method = RequestMethod.POST)
public ModelAndView submitForm(@ModelAttribute("user") User user) {
    userServiceImpl.create(user);
    return showForm();
    }
}

我的JSP：

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>

<html>
<head>
    <title>Create test</title>
</head>
<body>

<h1>Create Test</h1>
<form:form method="POST" action="/create-test" modelAttribute="topicTestDTO">
    <form:input path="topic.name" type="text" list="topic_list" placeholder="choose or create topic"/>
    <datalist id="topic_list">
        <c:forEach items="${topicList}" var="topic">
            <option>${topic}</option>
        </c:forEach>
    </datalist>
    <br>
    <form:input path="test.name" type="text" placeholder="create test name"/>
    <input type="submit">
</form:form>
</body>
</html>

感谢帮助。如果您需要更多信息，请告诉我哪一个，我将完成代码。