如何配置spring和vaadin以将我自己的bean注入vaadin视图？

Question

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="
   http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans.xsd
   http://www.springframework.org/schema/context
   http://www.springframework.org/schema/context/spring-context.xsd">
<context:annotation-config/>
<bean class="ru.yudnikov.blog.backend.PostManager" id="postManager"/>
<bean class="ru.yudnikov.blog.backend.PostModel" id="postModel" scope="prototype"/>
</beans> 

我声明了实现ApplicationContextAware的ApplicationClass（将静态链接放置到我的上下文），但是当我调试方法setApplicationContext（ApplicationContext ApplicationContext）时，我看到ApplicationContext不是空的。它包含了vaadin bean的延迟，比如PostView，我想用“authwired注释”注入我的管理器（控制器）。但如果我将centext设置为xml文件中的新类路径上下文，我将失去视图防御。而且我找不到一种方法来将我的bean定义添加到现有上下文中。我尝试了setParent（）setClassLoader（）和refresh（）但没有帮助。如何解决这个问题？我应该尝试“合并”这两个上下文还是怎样？

Answer 1

使用Vaadin Spring插件（https://github.com/Vaadin/Spring）。

下面是主UI类的示例（我在这里使用javax Inject，但您可以使用Spring Autowired注释）：

@SpringUI
@Theme("new")
@Widgetset("com.example.NewWidgetSet")
public class NewUI extends UI implements Constants {
    private static final Logger logger = LoggerFactory.getLogger(NewUi.class);
    private CssLayout contentLayout;
    private SpringViewProvider viewProvider;

    @Inject
    public RessuUi(HeaderLayout headerLayout, SpringViewProvider viewProvider) {
        this.headerLayout = headerLayout;
        this.viewProvider = viewProvider;
    }

    @Override
    protected void init(VaadinRequest request) {
        initNavigator();
        initRootLayout(); // init here content
    }

    private void initNavigator() {
        Navigator newNavigator = new Navigator(this, contentLayout);
        newNavigator.addProvider(viewProvider);
        setNavigator(newNavigator);
    }

    @Override
    public void detach() {
        logger.debug("Detaching UI.");
    }

}

视图类示例：

@SpringView(name = UserFormView.NAME)
public class UserFormView extends VerticalLayout implements View {

    private MyService myService;

    @Autowired
    public UserFormView(MyService myService) {
        this.myService = myService;
    }

}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/context
                           http://www.springframework.org/schema/context/spring-context-4.1.xsd">

    <context:component-scan base-package="com.mypackage.to.scan"/>
</beans>

@Configuration
@EnableVaadin
@ComponentScan
@PropertySource("classpath:application.properties")
public class MainConfiguration {

}

@Slf4j
@WebServlet(value = "/*", asyncSupported = true)
@VaadinServletConfiguration(productionMode = true, ui = NewUi.class, widgetset = "fi.ssm.ressu.NewWidgetSet",
    heartbeatInterval = 60, closeIdleSessions = true)
public class NewServlet extends SpringVaadinServlet {

}