Jsf javax.servlet.ServletException:javax/persistence/persistence javax.faces.webapp.FacesServlet.service（FacesServlet.java:606）

下午好，如果您能帮助我，我在设置jsf、primefaces和jpa（java.lang.NoClassDefFoundError:javax/persistence/persistence）时遇到了错误，谢谢！出现以下错误：

herejavax.servlet.ServletException: javax/persistence/Persistence
javax.faces.webapp.FacesServlet.service(FacesServlet.java:606)

java.lang.NoClassDefFoundError: javax/persistence/Persistence
com.observatorioLegislativo.dao.GenericDAOImpl.getEntityManager(GenericDAOImpl.java:20)
com.observatorioLegislativo.dao.GenericDAOImpl.<init>(GenericDAOImpl.java:15)
com.observatorioLegislativo.dao.RequerimentoDAOImpl.<init>(RequerimentoDAOImpl.java:7)
com.observatorioLegislativo.logic.impl.RequerimentoLogicImpl.<init>(RequerimentoLogicImpl.java:11)
com.observatorioLegislativo.bean.RequerimentoBean.<init>(RequerimentoBean.java:15)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
com.sun.faces.mgbean.BeanBuilder.newBeanInstance(BeanBuilder.java:188)
com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:102)
com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:408)
com.sun.faces.mgbean.BeanManager.create(BeanManager.java:268)
com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:72)
org.apache.el.parser.AstValue.getValue(AstValue.java:161)
org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
javax.faces.component.UIOutput.getValue(UIOutput.java:169)
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:312)
com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:59)
org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:47)
org.primefaces.component.fieldset.FieldsetRenderer.encodeContent(FieldsetRenderer.java:90)
org.primefaces.component.fieldset.FieldsetRenderer.encodeMarkup(FieldsetRenderer.java:72)
org.primefaces.component.fieldset.FieldsetRenderer.encodeEnd(FieldsetRenderer.java:46)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:437)
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:124)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
root cause

java.lang.ClassNotFoundException: javax.persistence.Persistence
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
com.observatorioLegislativo.dao.GenericDAOImpl.getEntityManager(GenericDAOImpl.java:20)
com.observatorioLegislativo.dao.GenericDAOImpl.<init>(GenericDAOImpl.java:15)
com.observatorioLegislativo.dao.RequerimentoDAOImpl.<init>(RequerimentoDAOImpl.java:7)
com.observatorioLegislativo.logic.impl.RequerimentoLogicImpl.<init>(RequerimentoLogicImpl.java:11)
com.observatorioLegislativo.bean.RequerimentoBean.<init>(RequerimentoBean.java:15)
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
java.lang.reflect.Constructor.newInstance(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
com.sun.faces.mgbean.BeanBuilder.newBeanInstance(BeanBuilder.java:188)
com.sun.faces.mgbean.BeanBuilder.build(BeanBuilder.java:102)
com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:408)
com.sun.faces.mgbean.BeanManager.create(BeanManager.java:268)
com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:72)
org.apache.el.parser.AstValue.getValue(AstValue.java:161)
org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:185)
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
javax.faces.component.UIOutput.getValue(UIOutput.java:169)
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:312)
com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185)
com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:59)
org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:47)
org.primefaces.component.fieldset.FieldsetRenderer.encodeContent(FieldsetRenderer.java:90)
org.primefaces.component.fieldset.FieldsetRenderer.encodeMarkup(FieldsetRenderer.java:72)
org.primefaces.component.fieldset.FieldsetRenderer.encodeEnd(FieldsetRenderer.java:46)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786)
javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782)
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:437)
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:124)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)

herejavax.servlet.ServletException:javax/persistence/persistence
javax.faces.webapp.FacesServlet.service（FacesServlet.java:606）
NoClassDefFoundError:javax/persistence/persistence
com.observatorioLegislativo.dao.GenericDAOImpl.getEntityManager（GenericDAOImpl.java:20）
com.observatorioLegislativo.dao.GenericDAOImpl.（GenericDAOImpl.java:15）
com.observatorioLegislativo.dao.RequerientodaoImpl.（RequerientodaoImpl.java:7）
com.observatorioLegislativo.logic.impl.RequerementologicImpl.（RequerementologicImpl.java:11）
com.observatorioLegislativo.bean.Requerementobean.（Requerementobean.java:15）
sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）
sun.reflect.NativeConstructorAccessorImpl.newInstance（未知源）
sun.reflect.DelegatingConstructorAccessorImpl.newInstance（未知源）
java.lang.reflect.Constructor.newInstance（未知源）
java.lang.Class.newInstance（未知源）
com.sun.faces.mgbean.BeanBuilder.newBeanInstance（BeanBuilder.java:188）
com.sun.faces.mgbean.BeanBuilder.build（BeanBuilder.java:102）
com.sun.faces.mgbean.BeanManager.createAndPush（BeanManager.java:408）
com.sun.faces.mgbean.BeanManager.create（BeanManager.java:268）
ManagedBeanELResolver.resolveBean（ManagedBeanELResolver.java:244）
ManagedBeanELResolver.getValue（ManagedBeanELResolver.java:116）
com.sun.faces.el.DemuxCompositeELResolver.\u getValue（DemuxCompositeELResolver.java:176）
com.sun.faces.el.DemuxCompositeELResolver.getValue（DemuxCompositeELResolver.java:203）
org.apache.el.parser.astiIdentifier.getValue（astiIdentifier.java:72）
org.apache.el.parser.AstValue.getValue（AstValue.java:161）
org.apache.el.ValueExpressionImpl.getValue（ValueExpressionImpl.java:185）
com.sun.faces.facelets.el.TagValueExpression.getValue（TagValueExpression.java:109）
javax.faces.component.ComponentStateHelper.eval（ComponentStateHelper.java:194）
javax.faces.component.ComponentStateHelper.eval（ComponentStateHelper.java:182）
javax.faces.component.UIOutput.getValue（UIOutput.java:169）
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue（HtmlBasicInputRenderer.java:205）
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue（HtmlBasicRenderer.java:355）
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd（HtmlBasicRenderer.java:164）
javax.faces.component.UIComponentBase.encodeEnd（UIComponentBase.java:875）
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive（HtmlBasicRenderer.java:312）
com.sun.faces.renderkit.html_basic.GridRenderer.renderRow（GridRenderer.java:185）
com.sun.faces.renderkit.html_basic.GridRenderer.encodechildrender（GridRenderer.java:129）
javax.faces.component.UIComponentBase.encodeChildren（UIComponentBase.java:845）
org.primefaces.renderkit.CoreRenderer.renderChild（CoreRenderer.java:59）
org.primefaces.renderkit.corerender.renderChildren（CoreRenderer.java:47）
org.primefaces.component.fieldset.FieldsetRenderer.encodeContent（FieldsetRenderer.java:90）
org.primefaces.component.fieldset.FieldsetRenderer.encodeMarkup（FieldsetRenderer.java:72）
org.primefaces.component.fieldset.FieldsetRenderer.encodeEnd（FieldsetRenderer.java:46）
javax.faces.component.UIComponentBase.encodeEnd（UIComponentBase.java:875）
javax.faces.component.UIComponent.encodeAll（UIComponent.java:1786）
javax.faces.render.Renderer.encodeChildren（Renderer.java:168）
javax.faces.component.UIComponentBase.encodeChildren（UIComponentBase.java:845）
javax.faces.component.UIComponent.encodeAll（UIComponent.java:1779）
javax.faces.component.UIComponent.encodeAll（UIComponent.java:1782）
javax.faces.component.UIComponent.encodeAll（UIComponent.java:1782）
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView（FaceletViewHandlingStrategy.java:437）
com.sun.faces.application.view.MultiViewHandler.renderView（MultiViewHandler.java:124）
com.sun.faces.lifecycle.RenderResponsePhase.execute（RenderResponsePhase.java:120）
com.sun.faces.lifecycle.Phase.doPhase（Phase.java:101）
com.sun.faces.lifecycle.LifecycleImpl.render（LifecycleImpl.java:139）
javax.faces.webapp.FacesServlet.service（FacesServlet.java:594）
根本原因
java.lang.ClassNotFoundException:javax.persistence.persistence
org.apache.catalina.loader.WebappClassLoader.loadClass（WebappClassLoader.java:1714）
org.apache.catalina.loader.WebappClassLoader.loadClass（WebappClassLoader.java:1559）
com.observatorioLegislativo.dao.GenericDAOImpl.getEntityManager（GenericDAOImpl.java:20）
com.observatorioLegislativo.dao.GenericDAOImpl.（GenericDAOImpl.java:15）
com.observatorioLegislativo.dao.RequerientodaoImpl.（RequerientodaoImpl.java:7）
com.observatorioLegislativo.logic.impl.RequerementologicImpl.（RequerementologicImpl.java:11）
com.observatorioLegislativo.bean.Requerementobean.（Requerementobean.java:15）
sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）
sun.reflect.NativeConstructorAccessorImpl.newInstance（未知源）
sun.reflect.DelegatingConstructorAccessorImpl.newInstance（未知源）
java.lang.reflect.Constructor.newInstance（未知源）
java.lang.Class.newInstance（未知源）
com.sun.faces.mgbean.BeanBuilder.newBeanInstance（BeanBuilder.java:188）
com.sun.faces.mgbean.BeanBuilder.build（BeanBuilder.java:102）
com.sun.faces.mgbean.BeanManager.createAndPush（BeanManager.java:408）
com.sun.faces.mgbean.BeanManager.create（BeanManager.java:268）
ManagedBeanELResolver.resolveBean（ManagedBeanELResolver.java:244）
ManagedBeanELResolver.getValue（ManagedBeanELResolver.java:116）
com.sun.faces.el.DemuxCompositeELResolver.\u getValue（DemuxCompositeELResolver.java:176）
com.sun.faces.el.DemuxCompositeELResolver.getValue（DemuxCompositeELResolver.java:203）
org.apache.el.parser.AstI
<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>com.observatorioLegislativo</groupId>
<artifactId>observatorioLegislativo</artifactId>
<version>1.0</version>
<packaging>war</packaging>


<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
    <!-- Mojarra (implementação do JSF 2) --> 
    <dependency>
        <groupId>org.glassfish</groupId>
        <artifactId>javax.faces</artifactId>
        <version>2.1.17</version>
        <scope>compile</scope>
    </dependency>


    <!-- Núcleo do Hibernate -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>4.3.0.Final</version>
        <scope>compile</scope>
    </dependency>

    <!-- Implementação de EntityManager da JPA -->
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>4.3.0.Final</version>
        <scope>compile</scope>
    </dependency>

    <!-- PrimeFaces (biblioteca de componentes) -->
    <dependency>
        <groupId>org.primefaces</groupId>
        <artifactId>primefaces</artifactId>
        <version>3.5</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.26</version>
        <scope>compile</scope>
    </dependency>

    <!-- Log4J -->      
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
        <scope>compile</scope>
    </dependency>

    <!-- Commons Logging (abstrai a implementação de logging) -->
    <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.1.3</version>
        <scope>compile</scope>
    </dependency>


</dependencies>

<repositories>
    <repository>
        <id>prime-repo</id>
        <name>PrimeFaces Maven Repository</name>
        <url>http://repository.primefaces.org</url>
        <layout>default</layout>
    </repository>
</repositories>

 </project>