SSH整合jbpm4.3

本篇文章主要讲SSH框架整合jbpm4.3，以及myeclipse8.5集成jbpm4.3

Jbpm4.3详解以后会相继推出，希望能给大家带来帮助

 

一：SSH框架整合jbpm4.3

   1.第一步到www.jbpm.org上下载Jbpm4.3相关包，最后我也会给出，直接下载就行了

      解压后的目录结构如下：

 

 2.讲jbpm.jar和lib下的包copy到工程的Lib目录下

 

    如果tomcat是6以上版本，启动项目然后访问项目会报这样的错：

javax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/WEB_002dINF/jsp/login_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, have different Class objects for the type javax/el/ExpressionFactory used in the signature
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:275)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:154)
	org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
	com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:362)
	com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:266)
	org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
	org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:488)
	org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
	org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
	org.ajaxanywhere.AAFilter.doFilter(AAFilter.java:46)

   解决此bug的方法如下：

   1.将tomcat  lib目录下的juel.jar删除

   2.将工程下lib目录下的juel.jar,juel-impl.jar,juel-engine.jar剪切到tomcat lib目录下

 

3.修改applicationContext.xml基础配置文件

	<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 
        <property name="sessionFactory" ref="sessionFactory" /> 
    </bean> 
    
    <bean id="springHelper" class="org.jbpm.pvm.internal.processengine.SpringHelper" /> 
    
    <bean id="processEngine" factory-bean="springHelper" factory-method="createProcessEngine" /> 
    
	<bean id="sessionFactory" 
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 
        <property name="dataSource" ref="dataSource" /> 
        <property name="hibernateProperties"> 
            <props> 
                <prop key="hibernate.dialect">org.hibernate.dialect.Oracle9iDialect</prop> 
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.format_sql">true</prop><!--
                <prop key="hibernate.hbm2ddl.auto">create-drop</prop>
            --></props> 
        </property> 
        <property name="mappingResources"> 
            <list> 
                <value>jbpm.repository.hbm.xml</value> 
                <value>jbpm.execution.hbm.xml</value> 
                <value>jbpm.history.hbm.xml</value> 
                <value>jbpm.task.hbm.xml</value> 
                <value>jbpm.identity.hbm.xml</value> 
            </list> 
        </property> 
    </bean> 

  第一次运行请将<prop key="hibernate.hbm2ddl.auto">create-drop</props> 注释取消

 
4.生成数据库表

 

  在action中注入processEngine

 @Autowired
 @Qualifier("processEngine")
 private ProcessEngine processEngine

 

 然后启动项目，执行此action，jbpm数据库表就会自动生成

 

   

 二：myeclipse8.5整合jbpm4.3(先断网)

  

     1.将Jbpm4.3解压目录下jbpm-4.3\install\src\gpd 的jbpm-gpd-site.zip解压

 

     2.打开myeclipse8.5，找到help-->myEclipse configuration Center

       切换到sofware选项，点击add site,在弹出框中选择 Add from local Folder 

       选择jbpm-4.3\install\src\gpd目录

 

     3.展开左边出现的刚添加的jbpm，下面会有7个文件，然后在每个文件上点击右键 Add to profile

       这样右边My software 下就出现了7个新增文件，最下面会出现Apply 7 changes ,点击安装即可