我尝试为我的项目(电话簿)制作简单的过滤器,以便能够通过电子邮件而不是ID来查找用户联系人。当我只是浏览网址时:http://localhost:8080/home/phonebook。我收到以下错误。
错误消息
org.thymeleaf.exceptions.TemplateProcessingException:异常 评估SpringEL表达式:“data.content”(模板: “/ home / phonebook” - 第29行,第13栏)
引起: org.springframework.expression.spel.SpelEvaluationException:EL1008E: 在类型对象上找不到属性或字段“内容” 'java.util.ArrayList' - 可能不公开或无效?
的HomeController
@RequestMapping(value = {"/home/phonebook"}, method = RequestMethod.GET)
public String showPage(Model model, @RequestParam(defaultValue = "0") int page){
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
User user = userService.findUserByEmail(auth.getName());
model.addAttribute("data",phonebookRepository.findAllByUserEmail(user.getEmail(),PageRequest.of(page,10)));
model.addAttribute("currentPage",page);
return "/home/phonebook";
}
Phonebook.html
<tr th:each="phonebook :${data.content}">
<td th:text="${phonebook.id}"></td>
<td th:text="${phonebook.surname}"></td>
<td th:text="${phonebook.firstname}"></td>
<td th:text="${phonebook.phoneNumber}"></td>
<td>
<a th:href="@{delete/(id=${phonebook.id})}" class="btn btn-danger delBtn">Delete</a>
<a th:href="@{findOne/(id=${phonebook.id})}" class="btn btn-primary eBtn">Edit</a></td>
</tr>
</tbody>
</table>
<hr/>
<ul class="nav nav-pills">
<li class="nav-item" th:each="i: ${#numbers.sequence(0,data.totalPages-1)}">
<a th:href="@{/home/phonebook(page=${i})}" th:text="${i}" class="nav-link"
th:classappend="${currentPage}==${i}?'active':''"></a>
</li>
</ul>
PhonebookRepository
@Repository("phonebookRepository")
public interface PhonebookRepository extends JpaRepository<Phonebook,Integer> {
List<Phonebook> findAllByUserEmail(String email, Pageable pageable);
}
SecurityConfig
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.jdbcAuthentication().dataSource(dataSource)
.usersByUsernameQuery("select email, password, active from users where email=?")
.authoritiesByUsernameQuery("select u.email, r.role from users u inner join user_role ur on(u.user_id=ur.user_id) inner join role r on(ur.role_id=r.role_id) where u.email=?")
.passwordEncoder(passwordEncoder());
}
更新1
对<tr th:each="phonebook :${data}">
进行了更改,我认为它修复了它,但我收到了一个新错误;
org.thymeleaf.exceptions.TemplateProcessingException:异常 评估SpringEL表达式: “#numbers.sequence(0,data.totalPages-1)”(模板:“/ home / phonebook” - 第42行,第38栏)
引起: org.springframework.expression.spel.SpelEvaluationException:EL1008E: 在类型的对象上找不到属性或字段'totalPages' 'java.util.ArrayList' - 可能不公开或无效?
答案 0 :(得分:3)
更改
<tr th:each="phonebook : ${data.content}">
到
<tr th:each="phonebook : ${data}">
因为您想迭代查询列表结果,但data.content
只是一个属性。
答案 1 :(得分:0)
data.content只是一个属性,而是循环遍历$ data