@Query，存儲庫中有錯誤

Question

也許由於我的實體具有關系而在@Query出錯？ 哪個存儲庫包含錯誤。

創建名稱為'clickRepository'的bean時出錯：調用init方法失敗； 嵌套的異常為java.lang.IllegalArgumentException：方法公共抽象java.lang.String com.qoobico.remindme.server.repository.ClickRepository.sent（java.lang.String，long）的查詢驗證失敗！

調節器

 @Autowired
private ClickService service;

/*
    i.e. information about fullname_client, id_banner sent to server from client
*/
@RequestMapping(value = "/sentemail", method = RequestMethod.POST)
@ResponseBody
public String sentClick(@RequestParam ("fullnameClient") String fullnameClient,@RequestParam ("idbanners") long idbanners) {

    return service.sent(fullnameClient, idbanners);
}

知識庫

@Query("SELECT c.fullnameClient FROM Click AS c join c.idBanner Banners b WHERE b.idBanner = :idbanners AND c.fullnameClient = :fullnameClient")
String sent(@Param("fullnameClient") String fullnameClient, @Param("idbanners") long idbanners);

實體點擊

@Id
@Column(name = "id_click", unique = true, nullable = false)
@GeneratedValue(generator = "increment")
@GenericGenerator(name = "increment", strategy = "increment")
private long idClick;

@ManyToOne(fetch = FetchType.EAGER, cascade = {CascadeType.MERGE, CascadeType.PERSIST})
@JoinColumn(name = "id_banners", nullable = false)
private Banners idbanners;

@Column(name = "fullname_client", nullable = false, length = 50)
private String fullnameClient;

實體橫幅

@Id
@Column(name = "id_banner", unique = true, nullable = false)
@GeneratedValue(generator = "increment")
@GenericGenerator(name = "increment", strategy = "increment")
private long idBanner;

@OneToMany(fetch = FetchType.EAGER, mappedBy = "banners")
private Set<Businessbanner> businessbanners;

@OneToMany(fetch = FetchType.EAGER, mappedBy = "idbanners")
private Set<Click> clicks;

錯誤

org.springframework.beans.factory.BeanCreationException：創建名稱為'clickController'的bean時出錯：自動連接依賴項的注入失敗； 嵌套的異常是org.springframework.beans.factory.BeanCreationException：無法自動連線字段：私有com.qoobico.remindme.server.service.ClickService com.qoobico.remindme.server.controller.ClickController.service; 嵌套的異常是org.springframework.beans.factory.BeanCreationException：創建名稱為'clickServiceImpl'的bean時出錯：自動連接依賴項的注入失敗； 嵌套的異常是org.springframework.beans.factory.BeanCreationException：無法自動連線字段：私有com.qoobico.remindme.server.repository.ClickRepository com.qoobico.remindme.server.service.ClickServiceImpl.clickRepository; 嵌套異常是org.springframework.beans.factory.BeanCreationException：創建名稱為'clickRepository'的bean時出錯：調用init方法失敗； 嵌套的異常為java.lang.IllegalArgumentException：方法公共抽象java.lang.String com.qoobico.remindme.server.repository.ClickRepository.sent（java.lang.String，long）的查詢驗證失敗！

Answer 1

您的參數名稱不同。 嘗試這個：

 @Query("SELECT c.fullnameClient FROM Click AS c join c.idbanners b WHERE b.idBanner = :idbanners AND c.fullnameClient = :fullnameClient")

    String sent(@Param("fullnameClient") String fullnameClient, @Param("idbanners ") long idbanners);

更新

好的，您的聯接是錯誤的。.而不是c聯接c.IdBanner ..應該是c.idbanners。