下午好,我在设置jsf、primefaces和jpa (java.lang.NoClassDefFoundError: javax / persistence / Persistence)时出错了,如果您能帮我的话,谢谢!遵循以下错误:
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)codigo pom.xml:
<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>发布于 2014-03-13 21:34:08
这意味着在类路径中找不到javax.persistence.Persistence类,我猜您没有使用应用程序服务器,我认为您使用的是tomcat,所以必须将应用程序所需的所有库都放在服务器库中,或者可以将所有jars复制到应用程序的WEB/ lib文件夹,所以您必须将jpa库hibernate实体your xxxxx.jar和其他库复制到WEB/lib文件夹中。
发布于 2014-03-14 13:09:23
同一个朋友,成功了!我把我的pom.xml中的所有依赖项放在tomcat中,然后它就起作用了!谢谢!
https://stackoverflow.com/questions/22387418
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