JSF & Spring

Bonjour à tous,

Je viens de réussir à mettre en place la pile de frameworks suivante(Jetty, MySql, Hibernate, Spring, JSF) tout en essayant d'exploitant le plus possible les annotations (Hibernate, Spring et JSF) voire minimiser le max toute configuration xml

Alors mon problème est: En lançant l'application dans le browser je rencontre une erreur que je ne comprend pas :

Code:

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java.lang.NullPointerException
	at com.lab.bean.UserB.getByCountry(UserB.java:42)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at javax.el.BeanELResolver.getValue(BeanELResolver.java:302)
	at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
	at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
	at com.sun.el.parser.AstValue.getValue(AstValue.java:96)
	at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:183)
	at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
	at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
	at javax.faces.component.UIData.getValue(UIData.java:731)
	at javax.faces.component.UIData.getDataModel(UIData.java:1798)
	at javax.faces.component.UIData.setRowIndexWithoutRowStatePreserved(UIData.java:484)
	at javax.faces.component.UIData.setRowIndex(UIData.java:473)
	at com.sun.faces.renderkit.html_basic.TableRenderer.encodeBegin(TableRenderer.java:81)
	at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:820)
	at javax.faces.component.UIData.encodeBegin(UIData.java:1118)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1777)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
	at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
	at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
	at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
	at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:334)
	at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
	at org.mortbay.jetty.servlet.DefaultServlet.doGet(DefaultServlet.java:466)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:389)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
	at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
	at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:324)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:865)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:520)

mon fichier pom.xml est le suivant:

Code:

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...
	<build>
		<finalName>TestAnnotationProject</finalName>
		<outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory>
		<plugins>
			<plugin>
				<groupId>org.mortbay.jetty</groupId>
				<artifactId>maven-jetty-plugin</artifactId>
				<version>6.1.16</version>
				<configuration>
					<connectors>
						<connector implementation="org.mortbay.jetty.nio.SelectChannelConnector">
							<port>2090</port>
							<maxIdleTime>60000</maxIdleTime>
						</connector>
					</connectors>
					<requestLog implementation="org.mortbay.jetty.NCSARequestLog">
						<filename>target/yyyy_mm_dd.request.log</filename>
						<retainDays>90</retainDays>
						<append>true</append>
						<extended>false</extended>
						<logTimeZone>GMT</logTimeZone>
					</requestLog>
				</configuration>
			</plugin>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>2.1</version>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
				</configuration>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<!-- JavaServerFaces -->
		<dependency>
			<groupId>com.sun.faces</groupId>
			<artifactId>jsf-api</artifactId>
			<version>2.1.7</version>
 
		</dependency>
		<dependency>
			<groupId>com.sun.faces</groupId>
			<artifactId>jsf-impl</artifactId>
			<version>2.1.7</version>
		</dependency>
 
 
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>servlet-api</artifactId>
			<version>2.5</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>com.sun.el</groupId>
			<artifactId>el-ri</artifactId>
			<version>1.0</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>javax.el</groupId>
			<artifactId>el-api</artifactId>
			<version>2.2</version>
		</dependency>
 
		<dependency>
			<groupId>org.glassfish.web</groupId>
			<artifactId>el-impl</artifactId>
			<version>2.2</version>
		</dependency>
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>3.8.1</version>
			<scope>test</scope>
		</dependency>
		<!-- Spring framework -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring</artifactId>
			<version>2.5.6</version>
		</dependency>
 
		<!-- MySQL database driver -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.9</version>
		</dependency>
 
		<!-- Hibernate framework -->
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-core</artifactId>
			<version>3.6.0.Final</version>
		</dependency>
 
		<!-- Hibernate annotation -->
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-tools</artifactId>
			<version>3.2.3.GA</version>
		</dependency>
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-commons-annotations</artifactId>
			<version>3.2.0.Final</version>
		</dependency>
 
		<!-- Hibernate library dependency start -->
		<dependency>
			<groupId>dom4j</groupId>
			<artifactId>dom4j</artifactId>
			<version>1.6.1</version>
		</dependency>
 
		<!-- SLF4J -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>1.6.6</version>
		</dependency>
 
		<!-- LOG4J -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.16</version>
		</dependency>
 
		<dependency>
			<groupId>commons-logging</groupId>
			<artifactId>commons-logging</artifactId>
			<version>1.1.1</version>
		</dependency>
 
		<dependency>
			<groupId>commons-collections</groupId>
			<artifactId>commons-collections</artifactId>
			<version>3.2.1</version>
		</dependency>
 
		<dependency>
			<groupId>antlr</groupId>
			<artifactId>antlr</artifactId>
			<version>2.7.7</version>
		</dependency>
 
		<dependency>
			<groupId>javassist</groupId>
			<artifactId>javassist</artifactId>
			<version>3.4.GA</version>
			<optional>true</optional>
		</dependency>
		<!-- Hibernate library dependency end -->
	</dependencies>
 
</project>

et la page d'acceuil:

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<html xmlns="http://www.w3.org/1999/xhtml"   
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      >
    <h:head>
    	<h:outputStylesheet library="css" name="style.css"  />
    </h:head>
 
    <h:body>
 
    	<h1 align="center" style=" color: silver; font-family: VERDANA; ">JSF 2.0 + Spring + Hibernate Example by Issam</h1>
 
 		<h:dataTable value="#{user.userList}" var="c"
    			styleClass="order-table"
    			headerClass="order-table-header"
    			rowClasses="order-table-odd-row,order-table-even-row"
    		>
 
    		<h:column>
    			<f:facet name="header">
    				User ID
    			</f:facet>
    				#{c.userId}
    		</h:column>
 
    		<h:column>
    			<f:facet name="header">
    				Name
				</f:facet>
    				#{c.userName}
    		</h:column>
 
 			<h:column>
    			<f:facet name="header">
    				Country
				</f:facet>
    				#{c.userCountry}
    		</h:column>
 
<!--     		<h:column> -->
<!--     			<f:facet name="header"> -->
<!--     				Created Date -->
<!-- 				</f:facet> -->
<!--     				#{c.createdDate} -->
<!--     		</h:column> -->
 
    	</h:dataTable>
 
 		<h2>Add New User</h2>
 		<h:form>
 
 			<h:panelGrid columns="3">
 
				Name : 
				<h:inputText id="name" value="#{user.name}" 
					size="20" required="true"
					label="Name" >
				</h:inputText>
 
				<h:message for="name" style="color:red" />
 
				Address : 
				<h:inputTextarea id="address" value="#{user.country}" 
					cols="30" rows="10" required="true"
					label="Country" >
				</h:inputTextarea>
 
				<h:message for="country" style="color:red" />
 
			</h:panelGrid>
 
			<h:commandButton value="Submit" action="#{user.addUser}" />
 
 		</h:form>
 
    </h:body>
 
</html>

je mets aussi le bean responsable de l'erreur :calim2:

Code:

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@ManagedBean(name="user")
@Scope("session")
@SessionScoped
public class UserB implements Serializable {
 
...
 
	// DI via Spring
	private UserBO userBo;
 
	public String name;
	public String password;
	public String country;
 
 
 
	// get all user data from database
	public List<User> getUserList() {
		return userBo.findAll();
	}
 
	...
 
 
}

Pouvez vous m'aider à résoudre ce problème chers amis ?

Merci beaucoup d'avance !