春季啓動範圍的問題多租戶

我試圖使用從這個答案代碼多租戶添加到我的春天開機1.2.5：春季啓動範圍的問題多租戶

Setting up a MultiTenantConnectionProvider using Hibernate 4.2 and Spring 3.1.1

我得到以下異常：

Caused by: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. 
     at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131) 
     at org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:41) 
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)

按照上述答案的源代碼是：

@Component 
@Scope(value = "request", proxyMode = ScopedProxyMode.TARGET_CLASS) 
public class RequestURITenantIdentifierResolver implements CurrentTenantIdentifierResolver { 
    @Autowired 
    private HttpServletRequest request; 
    @Override 
    public String resolveCurrentTenantIdentifier() { 
     String[] pathElements = request.getRequestURI().split("/"); 
     String tenant = pathElements[1]; 
     return tenant; 
    } 
    @Override 
    public boolean validateExistingCurrentSessions() { 
     return true; 
    } 
}

我試圖改變範圍值原型：

@Scope(value = "prototype", proxyMode = ScopedProxyMode.TARGET_CLASS)

，直到我嘗試在我的JpaRepository使用@Query的正常工作，如：

@Query("From Order where orderId = :id") 
public Order joinWithPurchaseItems(@Param("id") Integer id);

，並拋出了同樣的異常：

Caused by: java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request, or processing a request outside of the originally receiving thread? If you are actually operating within a web request and still receive this message, your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request. 
     at org.springframework.web.context.request.RequestContextHolder.currentRequestAttributes(RequestContextHolder.java:131) 
     at org.springframework.web.context.request.AbstractRequestAttributesScope.get(AbstractRequestAttributesScope.java:41) 
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:337)

有趣的是，使用本機查詢不會拋出此異常。

我也試過在我的應用程序類使用RequestContextListener沒有成功：

@SpringBootApplication 
public class Application { 

    @Bean 
    @ConditionalOnMissingBean(RequestContextListener.class) 
    public RequestContextListener requestContextListener() { 
     return new RequestContextListener(); 
    } 

    public static void main(String[] args) { 
     SpringApplication.run(Application.class, args); 
    } 
}

任何幫助表示讚賞。

來源

2015-09-20 Ali Wister

請求範圍不起作用。刪除範圍。相反，使用RequestContextHolder來獲取RequestContext，並在上下文中使用getRequest。或者使用一個'Filter'來放入'ThreadLocal'中的東西，並讓'CurrentTenantIdentifierResolver'使用'ThreadLocal'。示例代碼可以在[這裏]找到（https://github.com/mdeinum/spring-utils/tree/master/multi-tenant）。增加的優勢是更通用的，你也可以用它來主題，資源加載等。 –

過濾器方法工作正常。謝謝！我看了一下示例代碼，它有一些有趣的功能，如果它有更多的文檔，我認爲它們會非常有用。 –

正如評論中所建議的，我使用了一個過濾器，並從那裏捕獲了URL。解析器從過濾器設置的靜態字段中捕獲模式名稱。

來源

2015-09-22 07:57:42

春季啓動範圍的問題多租戶

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