質問編集履歴
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Todoリストで検索機能を作っているのですが、タイトルにもある通り検索結果が0の場合の処理をしたいのですがうまくいきません。
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```
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```java
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<!DOCTYPE html>
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```
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```java
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@RequestMapping(value ="/search", method = RequestMethod.POST)
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```java
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@Repository
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```
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```java
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@Entity
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test
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@@ -1,6 +1,6 @@
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Todoリストで検索機能を作っているのですが、タイトルにもある通り検索結果が0の場合の処理をしたいのですがうまくいきません。
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```
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```
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<!DOCTYPE html>
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```
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```
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@RequestMapping(value ="/search", method = RequestMethod.POST)
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```
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@Repository
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```
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```java
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@Service
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```
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@Entity
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1
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test
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```HTML
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<!DOCTYPE html>
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<html xmlns:th="http://www.thymeleaf.org">
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<head>
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<meta charset="UTF-8">
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<title>Title</title>
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<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
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<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
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<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
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</head>
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<body>
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<div th:replace="/common.html::header"></div>
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<hr/>
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</br>
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</br>
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</br>
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<div class="container">
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<form method="POST" th:action="@{/search}" >
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やってみたこと
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<!---
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<div th:if="#lists.size(todos)">
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<P>対象のToDoは見つかりません</P>
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</div>
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</div>
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--->
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<div th:if="${todo.done == false}">
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<td th:text="*{title}"></td>
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<td th:text="*{day}"></td>
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<td th:text="${#dates.format(todo.createDay, '(yyyy-MM-dd )')}">(1970-01-01 )</td>
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</div>
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<td><a class="btn btn-outline-dark" th:href="@{/{id}/edit(id=*{id})}">編集</a></td>
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<td>
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<form th:unless="${todo.done}" method="post" th:action="@{/done}" th:object="${todo}">
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<input type="hidden" name="id" th:value="*{id}" />
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<input class="btn btn-outline-danger" type="submit" value="未完了" />
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</form>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</body>
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</html>
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```
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```controller
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@RequestMapping(value ="/search", method = RequestMethod.POST)
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public String search(@RequestParam("title") String title, Model model) {
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List<Todo> todos = service.searchTodo(title);
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model.addAttribute("todos", todos);
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return "search";
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}
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```
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```Repository
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@Repository
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public interface TodoRepository extends JpaRepository<Todo, Long> {
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List<Todo> findByTitleContainingOrderByIdAsc(String title);
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}
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```
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```Service
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@Service
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@Transactional
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public class TodoService {
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@Autowired
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private TodoRepository repository;
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public List<Todo> findAll() {
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return repository.findAll(new Sort(Sort.Direction.DESC, "id"));
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}
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public Todo getOne(Long id) {
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return repository.getOne(id);
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}
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public Todo save(Todo todo) {
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return repository.save(todo);
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}
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public List<Todo> searchTodo(String title){
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return repository.findByTitleContainingOrderByIdAsc(title);
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}
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}
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```
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```Entity
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@Entity
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@Table(name = "todoitems")
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public class Todo {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private long id;
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@NotNull
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@Size(min = 1, max = 30)
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private String title;
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@NotNull
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@Size(min = 1, max = 30)
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private String day;
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private Boolean done ;
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@Temporal(TemporalType.DATE)
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@Column(updatable = false)
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private Date createDay;
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@PrePersist
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public void prePersist() {
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this.createDay = new Date();
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}
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public Date getCreateDay() {
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return createDay;
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}
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getTitle() {
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return title;
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}
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-
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public void setTitle(String title) {
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this.title = title;
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}
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public String getDay() {
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return day;
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}
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public void setDay(String day) {
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this.day = day;
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}
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public Boolean getDone() {
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return done;
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}
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public void setDone(Boolean done) {
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this.done = done;
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}
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}
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