我宁愿通过这样做来学习它可能是一个愚蠢的问题，但我找不到任何答案。
我有一个JSF应用程序，与简单的JDBC一起使用效果很好。
举一个“domain.xhtml”的例子，它有一个列出“DomainController”bean元素的表。这一切都很好，然后我们切换到JPA。该控制器必须使用服务，因此它被声明为@Component并包含（@Autowired）服务。除了我的所有JSF注入（@ManagedProperty）都不再注入，我的@PostConstruct不再被调用之外，它也运行良好。
有没有我遗漏的东西，或者这种方式出错了？
@ManagedBean
@Component
public class DomainController implements Serializable {
private static Logger log = Logger.getLogger(DomainController.class);
private static final long serialVersionUID = -2862060884914941992L;
private List<Domain> allItems;
private Domain[] selectedItem;
private SelectItem[] yesNoNull;
private DomainFilter filter = new DomainFilter();
@Autowired
private DomainService domainService;
@Autowired
private ValidationLookUpService validationLookUpService;
@Autowired
private ValidationService validationService;
@ManagedProperty("#{workspace.on}")
private boolean wsOn;
// @ManagedProperty("#{libraryVersionController.selectedItem.id}")
// private Integer selectedLibVersionID;
@ManagedProperty("#{libraryVersionController.selectedItem}")
private LibraryVersion selectedLibVersion;
@ManagedProperty("#{obsoleteEntry}")
private PObsoleteEntry pObsoleteEntry;
@ManagedProperty("#{validationFailedItemsController}")
private ValidationFailedItemsController validationFailedCont;
private Domain itemEdited;
private boolean persisted = false;
public DomainController() {
log.info("Creating metadata controller");
allItems = new ArrayList<Domain>();
// model for a yes/no/null column filtering
yesNoNull = new SelectItem[4];
yesNoNull[0] = new SelectItem("", "All");
yesNoNull[1] = new SelectItem("true", "yes");
yesNoNull[2] = new SelectItem("false", "no");
yesNoNull[3] = new SelectItem("null", "not yet validated");
}
@PostConstruct
public void test()
{
log.info("!!!");
log.info("WS is ... "+wsOn);
// NOT CALLED ANYMORE
}
...
我的web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- The definition of the Root Spring Container shared by all Servlets
and Filters -->
<context-param>
<param-name>contextConfigLocation</param-name> <!-- indique le fichier de configuration pour Spring -->
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<context-param>
<param-name>facelets.DEVELOPMENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param> <!-- to really skip comments in xhtml pages -->
<param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.xhtml</param-value>
</context-param>
<context-param>
<param-name>javax.faces.CONFIG_FILES</param-name>
<param-value>/WEB-INF/faces-config.xml</param-value>
</context-param>
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring/app/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/spring/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<listener> <!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener> <!-- links JSF with spring -->
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<listener> <!-- parses JSF configuration -->
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
<listener> <!-- vide le cache d’introspection Spring à l’arrêt du serveur. Ce listener n’est pas obligatoire mais conseillé -->
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>PrimeFaces FileUpload Filter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
</web-app>
谢谢！
答案 0 :(得分：0)
如果我错了，请纠正我，但我不知道如何选择一个，因为Spring管理后端和JSF（+ primefaces）前端。
我认为控制器“可能”是两者之间的接口，这就是我天真地混合它们的原因。
在对你的评论进行一些测试后，我让我的控制器只使用JSF并使用@ManagedBean注入服务（我不知道使用@ManagedBean它可以注入一个@Service Spring管理的bean）以便回答我的问题:)）
以下是更正后的代码。
还要感谢我向正确的方向重新定向！
/**
* This is the controller for a Domain
*
*/
@ManagedBean
public class DomainController implements Serializable {
private static Logger log = Logger.getLogger(DomainController.class);
private static final long serialVersionUID = -2862060884914941992L;
private List<Domain> allItems;
private Domain[] selectedItem;
private SelectItem[] yesNoNull;
private DomainFilter filter = new DomainFilter();
@ManagedProperty(value="#{domainService}")
private DomainService domainService;
@ManagedProperty("#{workspace.on}")
private boolean wsOn;
@ManagedProperty("#{libraryVersionController.selectedItem}")
private LibraryVersion selectedLibVersion;
private Domain itemEdited;
private boolean persisted = false;
/**
* creates a list populated from the database
*/
public DomainController() {
log.info("Creating metadata controller");
allItems = new ArrayList<Domain>();
// model for a yes/no/null column filtering
yesNoNull = new SelectItem[4];
yesNoNull[0] = new SelectItem("", "All");
yesNoNull[1] = new SelectItem("true", "yes");
yesNoNull[2] = new SelectItem("false", "no");
yesNoNull[3] = new SelectItem("null", "not yet validated");
}
@PostConstruct
public void test()
{
Domain d = new Domain();
d.setDataset("will it work ?"); // yes
try {
domainService.saveOrUpdate(d);
} catch (DataModelConsistencyException e) {
e.printStackTrace();
}
}
// all functions
public DomainService getDomainService() {
return domainService;
}
public void setDomainService(DomainService domainService) {
this.domainService = domainService;
}
}
public interface DomainService extends IVersionedServiceBase<Domain> {
public Domain saveOrUpdate(Domain d) throws DataModelConsistencyException;
public Domain getRelatedVariables(Domain d, VersionedObjectFilter versionedObjectFilter) throws DataModelConsistencyException;
StringAndError getVarNameAndKeyOrderForDomain(Domain d, VersionedObjectFilter versionedObjectFilter) throws DataModelConsistencyException;
}
@Service("domainService")
@Transactional(readOnly = true)
public class DomainServiceImpl extends VersionedServiceBase<Domain> implements DomainService {
/**
* Private logger for this class
*/
@SuppressWarnings("unused")
private static final Logger log = Logger.getLogger(DomainServiceImpl.class.getName());
@Autowired
private DomainDao domainDao;
@Autowired
private VariableDao variableDao;
@Autowired
private DomainPurposeDao domainPurposeDao;
@Autowired
private DomainClassDao domainClassDao;
etc.