Spring @Autowired無法正常工作 - BeanCreationException

Question

當我嘗試在服務器上部署文件時發生錯誤。 我很困惑，因為這段代碼工作正常。

例外

    Failed to enable lec2ear-1.0.ear.

Unexpected HTTP response: 500

Request
{
    "address" => [("deployment" => "lecture_7")],
    "operation" => "deploy"
}

Response

Internal Server Error
{
    "outcome" => "failed",
    "failure-description" => {"JBAS014671: Failed services" => {"jboss.undertow.deployment.default-server.default-host./mart-parent" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./mart-parent: Failed to start service
    Caused by: java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'storageController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private ru.menkin.ea.lec4.model.services.ICategoryService ru.menkin.ea.lec5.controllers.StorageController._categoryService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'categoryService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private ru.menkin.ea.lec4.model.repositories.CategoryRepository ru.menkin.ea.lec4.model.services.CategoryService.categoryRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'categoryRepository': Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.1.v20130918-f2b9fc5): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: javax.resource.ResourceException: IJ000453: Unable to get managed connection for java:jboss/recipeDs
Error Code: 0

ICategoryService

public interface ICategoryService
{
    public Category create(Category category);
    public Category delete(int id) throws Exception;
    public List<Category> findAll();
    public Category update(Category category) throws Exception;
    public Category findById(int id);
}

他的實施

public class CategoryService implements ICategoryService
{
    @Autowired
    private CategoryRepository categoryRepository;
...

調節器

@Controller
@RequestMapping(value = "/rest")
public class StorageController extends BaseController {
    @Autowired
    @Qualifier("categoryService")
    private ICategoryService _categoryService;
...

database.xml

<djpa:repositories base-package="ru.menkin.ea.lec4.model" />

<bean id="categoryService" class="ru.menkin.ea.lec4.model.services.CategoryService" />

beans.xml中

<context:annotation-config />
<context:component-scan base-package="ru.menkin.ea" />

我的錯誤在哪里？

Answer 1

這是您的異常消息中的最后一個原因

Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is javax.persistence.PersistenceException

Spring無法調用jpaMappingContext的init方法，因為發生了持久性異常 - 數據庫出錯了。

因此，Spring自動裝配實際上正在工作，但由於初始化其中一個spring bean時出現數據庫問題，因此無法自動連接您的依賴關系。

因此，自上次編碼以來，數據庫或數據庫設置中的某些內容已更改。 分析完整堆棧跟蹤以找出此問題的根本原因 - 這是一個數據庫問題。