春季自動裝配不工作Vaadin 7 UI

我有一個Vaadin 7項目。其作品。現在我需要實現Hibernate 4來訪問數據庫，並且我還想使用Spring 4來使用它的註釋。春季自動裝配不工作Vaadin 7 UI

問題是自動裝配註釋不起作用。相關對象始終爲空。

的pom.xml

<?xml version="1.0" encoding="UTF-8"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>bermacorp</groupId> 
    <artifactId>b-sci</artifactId> 
    <packaging>war</packaging> 
    <version>0.0.1-SNAPSHOT</version> 
    <name>b-sci</name> 

    <properties> 
     <vaadin.version>7.6.1</vaadin.version> 
     <vaadin.plugin.version>${vaadin.version}</vaadin.plugin.version> 
     <jetty.plugin.version>9.2.3.v20140905</jetty.plugin.version> 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
     <maven.compiler.source>1.8</maven.compiler.source> 
     <maven.compiler.target>1.8</maven.compiler.target> 

     <spring.version>4.2.3.RELEASE</spring.version> 
     <version.hibernate>4.3.6.Final</version.hibernate> 
     <version.slf4j>1.5.8</version.slf4j> 
    </properties> 

    <repositories> 
     <repository> 
      <id>vaadin-addons</id> 
      <url>http://maven.vaadin.com/vaadin-addons</url> 
     </repository> 
     <repository> 
      <id>vaadin-snapshots</id> 
      <url>https://oss.sonatype.org/content/repositories/vaadin-snapshots/</url> 
      <releases> 
       <enabled>false</enabled> 
      </releases> 
      <snapshots> 
       <enabled>true</enabled> 
      </snapshots> 
     </repository> 
    </repositories> 

    <dependencyManagement> 
     <dependencies> 
      <dependency> 
       <groupId>com.vaadin</groupId> 
       <artifactId>vaadin-bom</artifactId> 
       <version>${vaadin.version}</version> 
       <type>pom</type> 
       <scope>import</scope> 
      </dependency> 
     </dependencies> 
    </dependencyManagement> 

    <dependencies> 
     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>javax.servlet-api</artifactId> 
      <version>3.0.1</version> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.vaadin</groupId> 
      <artifactId>vaadin-server</artifactId> 
     </dependency> 
     <dependency> 
      <groupId>com.vaadin</groupId> 
      <artifactId>vaadin-push</artifactId> 
     </dependency> 
     <dependency> 
      <groupId>com.vaadin</groupId> 
      <artifactId>vaadin-client</artifactId> 
      <scope>provided</scope> 
     </dependency> 

     <dependency> 
      <groupId>com.vaadin</groupId> 
      <artifactId>vaadin-client-compiler</artifactId> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>com.vaadin</groupId> 
      <artifactId>vaadin-themes</artifactId> 
     </dependency> 

     <dependency> 
      <groupId>com.google.guava</groupId> 
      <artifactId>guava</artifactId> 
      <version>19.0</version> 
     </dependency> 

     <!-- Spring --> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-core</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-context</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-web</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-webmvc</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-orm</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-context-support</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-tx</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-oxm</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>${version.hibernate}</version> 
      <exclusions> 
       <exclusion> 
        <groupId>org.slf4j</groupId> 
        <artifactId>slf4j-api</artifactId> 
       </exclusion> 
      </exclusions> 
     </dependency> 

     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-validator</artifactId> 
      <version>4.0.2.GA</version> 
     </dependency> 

     <dependency> 
      <groupId>org.slf4j</groupId> 
      <artifactId>slf4j-log4j12</artifactId> 
      <version>${version.slf4j}</version> 
     </dependency> 

     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>servlet-api</artifactId> 
      <version>2.5</version> 
      <scope>provided</scope> 
     </dependency> 

     <dependency> 
      <groupId>postgresql</groupId> 
      <artifactId>postgresql</artifactId> 
      <version>8.4-702.jdbc4</version> 
     </dependency> 

    </dependencies> 

    <build> 
     <plugins> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>3.3</version> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-resources-plugin</artifactId> 
       <version>2.6</version> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-war-plugin</artifactId> 
       <version>2.3</version> 
       <configuration> 
        <failOnMissingWebXml>false</failOnMissingWebXml> 
        <packagingExcludes>WEB-INF/classes/VAADIN/gwt-unitCache/**, 
         WEB-INF/classes/VAADIN/widgetsets/WEB-INF/**</packagingExcludes> 
       </configuration> 
      </plugin> 
      <plugin> 
       <groupId>com.vaadin</groupId> 
       <artifactId>vaadin-maven-plugin</artifactId> 
       <version>${vaadin.plugin.version}</version> 
       <configuration> 
        <extraJvmArgs>-Xmx512M -Xss1024k</extraJvmArgs> 
        <webappDirectory>${basedir}/target/classes/VAADIN/widgetsets</webappDirectory> 
        <draftCompile>false</draftCompile> 
        <compileReport>false</compileReport> 
        <style>OBF</style> 
        <strict>true</strict> 
       </configuration> 
       <executions> 
        <execution> 
         <goals> 
          <goal>update-theme</goal> 
          <goal>update-widgetset</goal> 
          <goal>compile</goal> 
         </goals> 
        </execution> 
       </executions> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-source-plugin</artifactId> 
       <version>2.4</version> 
      </plugin> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-clean-plugin</artifactId> 
       <version>2.6.1</version> 
       <configuration> 
        <filesets> 
         <fileset> 
          <directory>src/main/webapp/VAADIN/themes</directory> 
          <includes> 
           <include>**/styles.css</include> 
           <include>**/styles.scss.cache</include> 
          </includes> 
         </fileset> 
        </filesets> 
       </configuration> 
      </plugin> 

      <plugin> 
       <groupId>org.eclipse.jetty</groupId> 
       <artifactId>jetty-maven-plugin</artifactId> 
       <version>${jetty.plugin.version}</version> 
       <configuration> 
        <scanIntervalSeconds>2</scanIntervalSeconds> 
       </configuration> 
      </plugin> 
     </plugins> 

     <pluginManagement> 
      <plugins> 
       <plugin> 
        <groupId>org.eclipse.m2e</groupId> 
        <artifactId>lifecycle-mapping</artifactId> 
        <version>1.0.0</version> 
        <configuration> 
         <lifecycleMappingMetadata> 
          <pluginExecutions> 
           <pluginExecution> 
            <pluginExecutionFilter> 
             <groupId>com.vaadin</groupId> 
             <artifactId> 
              vaadin-maven-plugin 
             </artifactId> 
             <versionRange>[7.1.11,)</versionRange> 
             <goals> 
              <goal>resources</goal> 
              <goal>update-widgetset</goal> 
              <goal>compile</goal> 
              <goal>compile-theme</goal> 
              <goal>update-theme</goal> 
             </goals> 
            </pluginExecutionFilter> 
            <action> 
             <ignore></ignore> 
            </action> 
           </pluginExecution> 
          </pluginExecutions> 
         </lifecycleMappingMetadata> 
        </configuration> 
       </plugin> 
      </plugins> 
     </pluginManagement> 

    </build> 

    <profiles> 
     <profile> 
      <id>vaadin-prerelease</id> 
      <activation> 
       <activeByDefault>false</activeByDefault> 
      </activation> 

      <repositories> 
       <repository> 
        <id>vaadin-prereleases</id> 
        <url>http://maven.vaadin.com/vaadin-prereleases</url> 
       </repository> 
      </repositories> 
      <pluginRepositories> 
       <pluginRepository> 
        <id>vaadin-prereleases</id> 
        <url>http://maven.vaadin.com/vaadin-prereleases</url> 
       </pluginRepository> 
      </pluginRepositories> 
     </profile> 
    </profiles> 

</project>

的web.xml

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> 
    <display-name>b-sci</display-name> 

    <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>Bsci</servlet-name> 
     <servlet-class>bsci.BsciServlet</servlet-class> 
     <init-param> 
      <param-name>UI</param-name> 
      <param-value>bsci.BsciUI</param-value> 
     </init-param> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>Bsci</servlet-name> 
     <url-pattern>/*</url-pattern> 
    </servlet-mapping> 

</web-app>

的applicationContext.xml

<?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" xmlns:tx="http://www.springframework.org/schema/tx" 
     xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" 
     xmlns:util="http://www.springframework.org/schema/util" 
     xmlns:jaxws="http://cxf.apache.org/jaxws" 
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd 
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd 
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd 
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd"> 

    <context:property-placeholder location = "classpath:application.properties"/> 

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" > 
     <property name="driverClassName" value="${jdbc.driverClassName}" /> 
     <property name="url" value="${jdbc.url}" /> 
     <property name="username" value="${jdbc.username}" /> 
     <property name="password" value="${jdbc.password}" /> 
    </bean> 

    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> 
     <property name="dataSource" ref="dataSource" /> 
     <property name="hibernateProperties"> 
      <props> 
       <prop key="hibernate.dialect">${hibernate.dialect}</prop> 
       <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> 
       <prop key="hibernate.generate_statistics">${hibernate.generate_statistics}</prop> 
      </props> 
     </property> 
     <property name="packagesToScan"> 
      <list> 
       <value>bsci.entity</value> 
      </list> 
     </property> 

    </bean> 

    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> 
     <property name="sessionFactory" ref="sessionFactory" /> 
    </bean> 

    <context:annotation-config /> 
    <tx:annotation-driven/> 

    <context:component-scan base-package="bsci.dao"/> 

    <bean class="bsci.service.impl.ServizioImpl" id="servizio"/> 
</beans>

BsciServlet.java

package bsci; 

import javax.servlet.ServletConfig; 
import javax.servlet.ServletException; 

import org.springframework.beans.factory.config.AutowireCapableBeanFactory; 
import org.springframework.context.ApplicationContext; 
import org.springframework.web.context.WebApplicationContext; 
import org.springframework.web.context.support.WebApplicationContextUtils; 

import com.vaadin.server.ServiceException; 
import com.vaadin.server.SessionInitEvent; 
import com.vaadin.server.SessionInitListener; 
import com.vaadin.server.VaadinServlet; 

@SuppressWarnings("serial") 
public class BsciServlet extends VaadinServlet implements SessionInitListener { 

    private WebApplicationContext webApplicationContext; 

    @Override 
    public void init(ServletConfig config) throws ServletException { 
     super.init(config); 

     try { 
      this.webApplicationContext = WebApplicationContextUtils.getRequiredWebApplicationContext(config.getServletContext()); 
     } catch (IllegalStateException e) { 
      throw new ServletException("could not locate containing WebApplicationContext"); 
     } 

     AutowireCapableBeanFactory ctx = getWebApplicationContext().getAutowireCapableBeanFactory(); 

     ctx.autowireBean(this); 
    } 

    protected final AutowireCapableBeanFactory getAutowireCapableBeanFactory() throws ServletException { 
     try { 
      return getWebApplicationContext().getAutowireCapableBeanFactory(); 
     } catch (IllegalStateException e) { 
      throw new ServletException("containing context " + getWebApplicationContext() + " is not autowire-capable", e); 
     } 
    } 

    protected final WebApplicationContext getWebApplicationContext() throws ServletException { 
     if (this.webApplicationContext == null) { 
      throw new ServletException("can't retrieve WebApplicationContext before init() is invoked"); 
     } 
     return this.webApplicationContext; 
    } 

    @Override 
    public void sessionInit(SessionInitEvent event) throws ServiceException { 
    } 

    @Override 
    protected final void servletInitialized() throws ServletException { 
     super.servletInitialized(); 
     getService().addSessionInitListener(this); 
     getService().addSessionInitListener(new BsciSessionInitListener()); 
    } 
}

BsciSessionInitListener.java

package bsci; 

import org.jsoup.nodes.Element; 

import com.vaadin.server.BootstrapFragmentResponse; 
import com.vaadin.server.BootstrapListener; 
import com.vaadin.server.BootstrapPageResponse; 
import com.vaadin.server.ServiceException; 
import com.vaadin.server.SessionInitEvent; 
import com.vaadin.server.SessionInitListener; 

@SuppressWarnings("serial") 
public class BsciSessionInitListener implements SessionInitListener { 

    @Override 
    public final void sessionInit(final SessionInitEvent event) 
      throws ServiceException { 

     event.getSession().addBootstrapListener(new BootstrapListener() { 

      @Override 
      public void modifyBootstrapPage(final BootstrapPageResponse response) { 
       final Element head = response.getDocument().head(); 
       head.appendElement("meta") 
         .attr("name", "viewport") 
         .attr("content", 
           "width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no"); 
       head.appendElement("meta") 
         .attr("name", "apple-mobile-web-app-capable") 
         .attr("content", "yes"); 
       head.appendElement("meta") 
         .attr("name", "apple-mobile-web-app-status-bar-style") 
         .attr("content", "black-translucent"); 

       String contextPath = response.getRequest().getContextPath(); 
      } 

      @Override 
      public void modifyBootstrapFragment(
        final BootstrapFragmentResponse response) { 
      } 
     }); 
    } 

}

現在在我的UI類的自動裝配Autowired對象總是空。

package bsci; 

import org.springframework.beans.factory.annotation.Autowired; 

import com.google.common.eventbus.Subscribe; 
import com.vaadin.annotations.Theme; 
import com.vaadin.annotations.Widgetset; 
import com.vaadin.server.Page; 
import com.vaadin.server.Page.BrowserWindowResizeEvent; 
import com.vaadin.server.Page.BrowserWindowResizeListener; 
import com.vaadin.server.Responsive; 
import com.vaadin.server.VaadinRequest; 
import com.vaadin.server.VaadinSession; 
import com.vaadin.ui.UI; 
import com.vaadin.ui.Window; 
import com.vaadin.ui.themes.ValoTheme; 

import bsci.data.DataProvider; 
import bsci.data.DummyDataProvider; 
import bsci.entity.Utente; 
import bsci.event.BsciEvent.BrowserResizeEvent; 
import bsci.event.BsciEvent.CloseOpenWindowsEvent; 
import bsci.event.BsciEvent.UserLoggedOutEvent; 
import bsci.event.BsciEvent.UserLoginRequestedEvent; 
import bsci.event.BsciEventBus; 
import bsci.service.Servizio; 
import bsci.view.LoginView; 
import bsci.view.MainView; 

@Theme("bscitheme") 
@Widgetset("bsci.BsciWidgetset") 
public final class BsciUI extends UI { 

    @Autowired 
    Servizio servizio; 

    private final DataProvider dataProvider = new DummyDataProvider(); 
    private final BsciEventBus dashboardEventbus = new BsciEventBus(); 

    @Override 
    protected void init(final VaadinRequest request) { 

     BsciEventBus.register(this); 
     Responsive.makeResponsive(this); 
     addStyleName(ValoTheme.UI_WITH_MENU); 

     updateContent(); 

     Page.getCurrent().addBrowserWindowResizeListener(new BrowserWindowResizeListener() { 
      @Override 
      public void browserWindowResized(final BrowserWindowResizeEvent event) { 
       BsciEventBus.post(new BrowserResizeEvent()); 
      } 
     }); 
    } 

    private void updateContent() { 
     Utente user = (Utente) VaadinSession.getCurrent().getAttribute(Utente.class.getName()); 
     if (user != null) { 
      setContent(new MainView()); 
      removeStyleName("loginview"); 
      getNavigator().navigateTo(getNavigator().getState()); 
     } else { 
      setContent(new LoginView()); 
      addStyleName("loginview"); 
     } 
    } 

    @Subscribe 
    public void userLoginRequested(final UserLoginRequestedEvent event) { 
     Utente user = getDataProvider().authenticate(event.getUserName(), event.getPassword()); 
     VaadinSession.getCurrent().setAttribute(Utente.class.getName(), user); 
     updateContent(); 
    } 

    @Subscribe 
    public void userLoggedOut(final UserLoggedOutEvent event) { 
     VaadinSession.getCurrent().close(); 
     Page.getCurrent().reload(); 
    } 

    @Subscribe 
    public void closeOpenWindows(final CloseOpenWindowsEvent event) { 
     for (Window window : getWindows()) { 
      window.close(); 
     } 
    } 

    public static DataProvider getDataProvider() { 
     return ((BsciUI) getCurrent()).dataProvider; 
    } 

    public static BsciEventBus getDashboardEventbus() { 
     return ((BsciUI) getCurrent()).dashboardEventbus; 
    } 

    public Servizio getServizio() { 
     return servizio; 
    } 
}

你能幫我嗎？我不明白原因。

來源

2016-02-26 hancock46

自動裝配發生在由Spring管理豆，你的UI是沒有問題的。我看到你正在嘗試手動（看起來過度使用）使用'AutowireCapeableBeanFactory'，但我看不到它將如何用於填充UI字段。如果你可以使用spring引導，請查看[官方教程]（https://vaadin.com/wiki//wiki/Main/Vaadin+Spring），它使事情變得更簡單。另外還有[其他插件]（https://vaadin.com/directory#!browse/search=spring），它集成了Vaadin和Spring，或者你可以改變你的代碼並提供你自己的UIProvider，它返回spring bean 。 – Morfic

原因是你試圖讓Spring向你的UI注入東西，但是Spring不知道你的UI。使用Vaadin Spring integration而不是自己實現它。自己動手做是可能的，但是你需要在WebApplicationContext中手動查找某些組件的地方，例如View組件可能是由Navigator使用的ViewProvider中查找的原型範圍的bean。但現在我們已經有了官方的Vaadin Spring集成，這已經不再需要了。

來源

2016-02-27 21:18:35 herman

我試圖按照你的意見，但現在我收到此消息錯誤： java.lang.IllegalStateException：沒有範圍註冊作用域'vaadin-ui' 我將@ScopeUI添加到我的UI類中，將VaadinServlet更改爲SpringVaadinServlet並更新我的web.xml。有什麼問題？ – hancock46

你的UI類應該有'@ SpringUI'。其他要使用的生命週期等於UI的組件應該具有'@ ScopeUI'和'@ SpringComponent'。查看示例[here]（https://vaadin.com/wiki?p_p_id=36&p_p_lifecycle=0&p_p_state=normal&p_p_mode=view&p_p_col_id=row-1&p_p_col_pos=1&p_p_col_count=3&_36_struts_action=%2Fwiki%2Fview&p_r_p_185834411_nodeName=vaadin.com+wiki&p_r_p_185834411_title=II+-+Injection +和+ Scopes + with + Vaadin + Spring） – herman

感謝所有，但我解決了使用vaadin Spring集成附加

<dependency> 
    <groupId>ru.xpoft.vaadin</groupId> 
    <artifactId>spring-vaadin-integration</artifactId> 
    <version>3.2</version> 
</dependency>

來源

2016-03-04 09:16:23 hancock46

爲什麼不使用標準'vaadin-spring'插件？ – herman

春季自動裝配不工作Vaadin 7 UI

回答

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