Jbpm + Spring 配置

配置问题， 苦！

以前用 spring-modules-0.8 中的 3.1 模块配置了 Jbpm + Spring，
但是， 当我使用 Timer 时， 却抛出异常：
org.jbpm.svc.JbpmServiceException: service 'scheduler' unavailable

看来是 scheduler 服务不可用。
查jbpm.cfg.xml 文件， 里面有关于 scheduler 的配置， 如下：
<service factory="org.jbpm.scheduler.db.DbSchedulerServiceFactory" name="scheduler">

查了很长时间， 一直不知道什么原因。

今天， 在网上搜索到了一篇文章（CSDN鸟之家）， 发现我的配置中少了一个 serlvet。
于是， 加上， 结果， 异常。
还有一个警告：
WARN: no info for object 'jbpmConfiguration'. defined objects: [resource.parsers, resource.mail.templates, jbpm.task.instance.factory, jbpm.mail.smtp.host, jbpm.variable.resolver, resource.action.types, jbpm.byte.block.size, resource.varmapping, resource.business.calendar, resource.default.modules, jbpm.job.executor, resource.node.types, jbpm.mail.address.resolver, default.jbpm.context, resource.converter]


现在我的代码就是以下的样子了。 （有不少是网上摘抄的， 不要告我侵权啊， 我只想解决异常， 嘿嘿。）
除了 scheduler， 一切正常， 愁啊！！！！！！！！

环境：
    IDE: IntelliJ IDEA 6.0.4
    JDK: 1.6.0_02
    DB: MySQL 5.0.41
    Jbpm: 3.2 GA
    Spring: 2.0.6
    Spring-modules: 0.8
    Hibernate: 3.2.4

Spring 的 jbpm.xml
</service>

xml 代码

xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:jee="http://www.springframework.org/schema/jee"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
            http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.0.xsd">

    <description>JBPM Configure File<!---->description>

    <!---->
    <bean id="jbpmConfiguration" class="org.springmodules.workflow.jbpm31.LocalJbpmConfigurationFactoryBean">
        <property name="sessionFactory">
            <ref bean="sessionFactory"/>
        <!---->property>
        <property name="configuration">
            <value>/WEB-INF/jbpm.cfg.xml<!---->value>
        <!---->property>
        <property name="createSchema">
            <value>false<!---->value>
        <!---->property>
    <!---->bean>

    <bean id="jbpmTemplate" class="org.springmodules.workflow.jbpm31.JbpmTemplate">
        <constructor-arg index="0" ref="jbpmConfiguration"/>
    <!---->bean>
    <!---->
<!---->beans>

jbpm.cfg.xml

xml 代码

<jbpm-configuration>

    <jbpm-context>
        <service name="persistence" factory="org.jbpm.persistence.db.DbPersistenceServiceFactory"/>
        <service name="tx" factory="org.jbpm.tx.TxServiceFactory"/>
        <service name="message" factory="org.jbpm.msg.db.DbMessageServiceFactory"/>
        <service name="scheduler" factory="org.jbpm.scheduler.db.DbSchedulerServiceFactory"/>
        <service name="logging" factory="org.jbpm.logging.db.DbLoggingServiceFactory"/>
        <service name="authentication" factory="org.jbpm.security.authentication.DefaultAuthenticationServiceFactory"/>
    <!---->jbpm-context>

    <!---->
    <!---->

    <!---->
    <string name="resource.business.calendar" value="org/jbpm/calendar/jbpm.business.calendar.properties"/>
    <string name="resource.default.modules" value="org/jbpm/graph/def/jbpm.default.modules.properties"/>
    <string name="resource.converter" value="org/jbpm/db/hibernate/jbpm.converter.properties"/>
    <string name="resource.action.types" value="org/jbpm/graph/action/action.types.xml"/>
    <string name="resource.node.types" value="org/jbpm/graph/node/node.types.xml"/>
    <string name="resource.parsers" value="org/jbpm/jpdl/par/jbpm.parsers.xml"/>
    <string name="resource.varmapping" value="org/jbpm/context/exe/jbpm.varmapping.xml"/>
    <string name="resource.mail.templates" value="jbpm.mail.templates.xml"/>

    <int name="jbpm.byte.block.size" value="1024" singleton="true"/>
    <string name="jbpm.mail.smtp.host" value="localhost"/>
    <bean name="jbpm.task.instance.factory" class="org.jbpm.taskmgmt.impl.DefaultTaskInstanceFactoryImpl"
          singleton="true"/>
    <bean name="jbpm.variable.resolver" class="org.jbpm.jpdl.el.impl.JbpmVariableResolver" singleton="true"/>
    <bean name="jbpm.mail.address.resolver" class="org.jbpm.identity.mail.IdentityAddressResolver" singleton="true"/>

    <!---->
    <bean name="jbpm.job.executor" class="org.jbpm.job.executor.BpmJobExecutor">
        <field name="jbpmConfiguration">
            <ref bean="jbpmConfiguration"/>
        <!---->field>
        <field name="name">
            <string value="JbpmJobExector"/>
        <!---->field>
        <field name="nbrOfThreads">
            <int value="1"/>
        <!---->field>
        <field name="idleInterval">
            <int value="5000"/>
        <!---->field>
        <field name="maxIdleInterval">
            <int value="3600000"/>
        <!---->field>
        <!---->
        <field name="historyMaxSize">
            <int value="20"/>
        <!---->field>
        <field name="maxLockTime">
            <int value="600000"/>
        <!---->field>
        <!---->
        <field name="lockMonitorInterval">
            <int value="60000"/>
        <!---->field>
        <!---->
        <field name="lockBufferTime">
            <int value="5000"/>
        <!---->field>
        <!---->
    <!---->bean>
<!---->jbpm-configuration>

org.jbpm.job.executor.BpmJobExecutor

java 代码

public class BpmJobExecutor extends JobExecutor {
    public static JbpmConfiguration jbpmConfig;

    public synchronized void start() {
        jbpmConfiguration = jbpmConfig;
        super.start();
    }

    public static void setJbpmConfiguration(JbpmConfiguration config) {
        jbpmConfig = config;
    }
}

com.rathink.bpm.servlet.JobExecutorServlet

java 代码

public class JobExecutorServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    JbpmConfiguration jbpmConfiguration;

    public void init() throws ServletException {
        JbpmTemplate jbpmTemplate = (JbpmTemplate) WebApplicationContextUtils
                .getWebApplicationContext(this.getServletContext()).getBean(
                "jbpmTemplate");
        jbpmConfiguration = jbpmTemplate.getJbpmConfiguration();
        BpmJobExecutor.setJbpmConfiguration(jbpmConfiguration);
        jbpmConfiguration.startJobExecutor();
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        PrintWriter out = response.getWriter();
        out.println("");
        out.println("");
        out.println("
    JBoss jBPM Scheduler Servlet
    );
        Collection threads = jbpmConfiguration.getJobExecutor().getThreads().values();
        for (Object thread1 : threads) {
            Thread thread = (Thread) thread1;
            out.println("
    " + thread.getName() + "
    ");
            out.println("isAlive:" + thread.isAlive());
        }
        out.println("");
        out.println("");
    }

    String getInitParameter(String name, String defaultValue) {
        String value = getInitParameter(name);
        if (value != null) {
            return value;
        }
        return defaultValue;
    }
}

web.xml

xml 代码

......
    <servlet>
        <servlet-name>JobExecutorServlet<!---->servlet-name>
        <servlet-class>com.rathink.bpm.servlet.JobExecutorServlet<!---->servlet-class>
        <load-on-startup>3<!---->load-on-startup>
    <!---->servlet>

    <servlet-mapping>
        <servlet-name>JobExecutorServlet<!---->servlet-name>
        <url-pattern>/jobexecutor<!---->url-pattern>
    <!---->servlet-mapping>
......

评论

1 楼 rmn190 2009-03-26  

看下这个类: org.jbpm.web.JbpmThreadsServlet