问题
I'm rather learning by doing so it might be a stupid question but I couldn't find any answer.
I have an JSF application which worked well as used with simple JDBC.
Take an example of the "domain.xhtml", which had a table listing elements from a "DomainController" bean. It was all working great then we switched to JPA. That controller has to use services so it's declared as @Component and includes (@Autowired) services from there. It also works well EXCEPT that all my JSF injections (@ManagedProperty) are not injected anymore, my @PostConstruct is not called anymore either.
Is there something I missed, or is wrong with that manner to proceed ?
@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
}
...
My 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>
Thanks !
回答1:
Correct me if I'm wrong but I don't see how I could just choose one, as Spring manages the back-end and JSF(+primefaces) the front-end.
I thought that the controller "could" have been the interface between the two, that's why I naively mixed them.
After some testing around your comments, I made my controller only use JSF and it injects the services using @ManagedBean (I didn't know either that using @ManagedBean it could inject a @Service Spring-managed bean) so that answers my question :)
Below is the corrected code working.
Thanks also for redirecting me in the right direction !
Controller
/**
* 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;
}
}
Service
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;
}
Implementation of service
@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.
来源：https://stackoverflow.com/questions/14144581/jsf-spring-managedbean-postconstruct-not-called