我使用gwt(使用requestfactory)和spring
得到此错误org.springframework.beans.factory.NoSuchBeanDefinitionException: No unique bean of type [org.calibra.server.service.AccountService] is defined: expected single bean but found 0:
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:271)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1101)
at org.calibra.server.SpringServiceLocator.getInstance(SpringServiceLocator.java:24)
at com.google.web.bindery.requestfactory.server.LocatorServiceLayer.createServiceInstance(LocatorServiceLayer.java:56)
我的服务定位器
public class SpringServiceLocator implements ServiceLocator {
@Override
public Object getInstance(Class<?> clazz) {
ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(
RequestFactoryServlet.getThreadLocalServletContext());
return context.getBean(clazz);
}
}
我的春季服务
@Service
public class AccountServiceImpl implements AccountService{
@Override
public void addNewAccount(Account account) {
...
}
@Override
public List<Account> loadAllAccounts() {
...
}
}
Gwt requestContext,引用我的spring服务
@Service(value=AccountService.class, locator=SpringServiceLocator.class)
public interface AccountRequest extends RequestContext {
Request<Void> addNewAccount(AccountProxy account);
Request<List<AccountProxy>> loadAllAccounts();
}
我的web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>gwtRequest</servlet-name>
<servlet-class>com.google.web.bindery.requestfactory.server.RequestFactoryServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>gwtRequest</servlet-name>
<url-pattern>/gwtRequest</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>welcomeGWT.html</welcome-file>
</welcome-file-list>
我不明白我如何拥有0个AccountService bean?
我试图添加dispatcher-servlet
<bean id="accountService" class="org.calibra.server.service.AccountServiceImpl"/>
我得到了相同的结果
有什么想法吗?
编辑:如果有人有完整的完整示例,那可能会有用。
答案 0 :(得分:0)
我认为单独使用ContextLoaderListener是不够的,因为您似乎没有使用DispatcherServlet(对吗?)。 以下几行对我有用:
<filter>
<filter-name>springRequestContextFilter</filter-name>
<filter-class>org.springframework.web.filter.RequestContextFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>springRequestContextFilter</filter-name>
<url-pattern>/gwtRequest</url-pattern>
</filter-mapping>
答案 1 :(得分:0)
我在其他几个地方看过这个问题。你应该首先尝试明确地将AccountServiceImpl定义为applicationContext.xml中的bean(而不是dispatch-servlet.xml),看看你是否仍然得到错误,如果你没有,那么你就知道你错过了组件-scan在您的应用程序上下文xml中,我认为是这种情况。
希望这会有所帮助