JBPM4.3中ExecutionService.findExecutioById()迷惑

2012-10-12

JBPM4.3中ExecutionService.findExecutioById()疑惑最近很纠结。JBPM4。3的问题。说明我的应用开发环境是：JPB

JBPM4.3中ExecutionService.findExecutioById()疑惑

最近很纠结。JBPM4。3的问题。

说明我的应用开发环境是：JPBM4.3,Spring2.0整个项目框架基于SSH搭建。数据库为MySql5.0。

第一步：项目的配置文件

数据库db.properties

#development
dev.connection.driver_class=com.mysql.jdbc.Driver
dev.connection.url=jdbc:mysql://localhost:3306/test_oatianai?useUnicode=true&characterEncoding=UTF-8
dev.connection.username=root
dev.connection.password=123456
#test
test.connection.driver_class=com.mysql.jdbc.Driver
test.connection.url=jdbc:mysql://localhost:3306/test_oatianai?useUnicode=true&characterEncoding=UTF-8
test.connection.username=root
test.connection.password=123456

hibernate的配置文件为jbpm4.3中带的hibernate.cfg.xml

jbpm4.3的jbpm配置文件如下：jbpm.cfg.xml

<?xml version="1.0" encoding="UTF-8"?>

<jbpm-configuration>

? <import resource="jbpm.default.cfg.xml" />
? <import resource="jbpm.tx.spring.cfg.xml" />
? <import resource="jbpm.jpdl.cfg.xml" />
? <import resource="jbpm.bpmn.cfg.xml" />
? <import resource="jbpm.identity.cfg.xml" />
? <import resource="jbpm.businesscalendar.cfg.xml" />
? <import resource="jbpm.console.cfg.xml" />
? <import resource="jbpm.jobexecutor.cfg.xml" />
??
??
??
? <process-engine-context>
??? <string name="spring.cfg" value="spring/spring-jbpm.xml" />
? </process-engine-context>
?
? 
</jbpm-configuration>

JBPM4.3中配置Spring相对JBPM4.0要简单一些。

<?xml version="1.0" encoding="UTF-8"?>

? <bean id="springHelper" />

? <bean id="processEngine" factory-bean="springHelper" factory-method="createProcessEngine" />
?
? <bean id="sessionFactory" value="classpath:hibernate.cfg.xml" />
??? <property name="dataSource" ref="dataSource" />
? </bean>
?
? <bean id="transactionManager" ref="sessionFactory" />
??? <property name="dataSource" ref="dataSource" />
? </bean>

? <bean id="dataSource" value="com.mysql.jdbc.Driver" />
??? <property name="url" value="jdbc:mysql://localhost:3306/test_oatianai?useUnicode=true&characterEncoding=UTF-8" />
??? <property name="username" value="root" />
??? <property name="password" value="123456" />
? </bean>

?这里本是想这样来配置JBPM的服务

? <bean id="processEngine" factory-bean="springHelper" factory-method="createProcessEngine" />

但这样会报错误，说无法这样创建executionService? BEAN，希望大家给指点一下。

整个项目的搭建配置与JBPM4相关的到此配置也就完成。

第二步：表数据模块,我的实例是基于请款而写的，业务表单Bean如下：

ublic class ApplyMoneyForm {
?private Long id;
?
?private String applyuser;

?private String reason;
?
?private float applynum;
?
?private String suggestion1;
?
?private String decision1;
?
?private String manager;
?
?private String suggestion2;
?
?private String decision2;
?
?private String boss;
?
?private String processid;
?

?public String getDecision1() {
??return decision1;
?}

?public void setDecision1(String decision1) {
??this.decision1 = decision1;
?}

?public String getDecision2() {
??return decision2;
?}

?public void setDecision2(String decision2) {
??this.decision2 = decision2;
?}

?public Long getId() {
??return id;
?}

?public void setId(Long id) {
??this.id = id;
?}

?public String getApplyuser() {
??return applyuser;
?}

?public void setApplyuser(String applyuser) {
??this.applyuser = applyuser;
?}

?public String getReason() {
??return reason;
?}

?public void setReason(String reason) {
??this.reason = reason;
?}

?public float getApplynum() {
??return applynum;
?}

?public void setApplynum(float applynum) {
??this.applynum = applynum;
?}

?public String getSuggestion1() {
??return suggestion1;
?}

?public void setSuggestion1(String suggestion1) {
??this.suggestion1 = suggestion1;
?}

?public String getManager() {
??return manager;
?}

?public void setManager(String manager) {
??this.manager = manager;
?}

?public String getSuggestion2() {
??return suggestion2;
?}

?public void setSuggestion2(String suggestion2) {
??this.suggestion2 = suggestion2;
?}

?public String getBoss() {
??return boss;
?}

?public void setBoss(String boss) {
??this.boss = boss;
?}

这是表彰数据。

第三步：业务数据与流程实例结合

?流程定义文件applymoney.xml

流程管理ApplyMoneyManager.java

package com.cqta.oatianai.jbpm;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.jbpm.api.Execution;
import org.jbpm.api.ExecutionService;
import org.jbpm.api.ProcessEngine;
import org.jbpm.api.ProcessInstance;
import org.jbpm.api.TaskService;
import org.jbpm.api.task.Task;
import org.jbpm.pvm.internal.task.TaskImpl;

import com.cqta.oatianai.model.ApplyMoneyForm;

public class ApplyMoneyManager {
?private ProcessEngine processEngine;

?public void setProcessEngine(ProcessEngine processEngine) {
??this.processEngine = processEngine;
?}
?/**
? *发起请款流
? * @param username
? */
?public String startApplyMoney(String username){
??Map<String, Object> variables=new HashMap<String, Object>();
??variables.put("user", username);
??ExecutionService executionService=processEngine.getExecutionService();
??ProcessInstance processInstance=executionService.startProcessInstanceByKey("applymoney", variables);
??String processId=processInstance.getId();
??return processId;
?}
?/**
? * 请假表单结合
? * @param applyMoneyForm
? */
?public void applyMoney(ApplyMoneyForm applyMoneyForm){
??Map<String, Object> variables=new HashMap<String, Object>();
??variables.put("manager", applyMoneyForm.getManager());
??TaskService taskService=processEngine.getTaskService();
??List<Task> listTasks=taskService.findPersonalTasks(applyMoneyForm.getApplyuser());
??if(listTasks.size()<=0){
???return ;
??}
??Task task=listTasks.get(0);
??taskService.setVariables(task.getId(), variables);
??taskService.completeTask(task.getId());

?}
?public void confirm(ApplyMoneyForm applyMoneyForm,String taskId){
??TaskService taskService=processEngine.getTaskService();
??Task task=taskService.getTask(taskId);
??
??System.out.println("executionId==========>"+task.getExecutionId());
??
??ExecutionService executionService=processEngine.getExecutionService();
??
??Execution execution=executionService.findExecutionById(task.getExecutionId());
??if(execution.getProcessInstance().isActive("经理审核")){
???taskService.completeTask(task.getId(),applyMoneyForm.getDecision1());
??}else if(execution.getProcessInstance().isActive("老板审核")){
???taskService.completeTask(task.getId(), applyMoneyForm.getDecision2());
??}
??
?}
}

这里红色标识的就是最近纠结的地方了，findExecutionById(task.getExecutionId())本身应去JBPM4_Execution表中的ID_字段，但去取JBPM4_Execution表中的DBID_字段。前一个字段为字符类型，后一个字段为long型。这个问题在Sqlserver2000与oracle中都出现了问题。希望大家帮忙解决一下。原来是hibernate的版本搞错了

表单数据与流程实例相继合我是在Controller中进行的，不知是否合理。ApplyMoneyController

package com.cqta.oatianai.controller;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.jbpm.api.task.Task;

import com.cqta.core.utils.BeanUtils;
import com.cqta.core.web.ApplicationController;
import com.cqta.oatianai.dao.ApplyMoneyFormDaoImpl;
import com.cqta.oatianai.jbpm.ApplyMoneyManager;
import com.cqta.oatianai.jbpm.PersonTasks;
import com.cqta.oatianai.model.ApplyMoneyForm;

public class ApplyMoneyController extends ApplicationController{
?private ApplyMoneyManager applyMoneyManager;
?
?private ApplyMoneyFormDaoImpl applyMoneyFormDaoImpl;
?
?private PersonTasks personTasks;
?
?public void setApplyMoneyManager(ApplyMoneyManager applyMoneyManager) {
??this.applyMoneyManager = applyMoneyManager;
?}
?
?public void setApplyMoneyFormDaoImpl(ApplyMoneyFormDaoImpl applyMoneyFormDaoImpl) {
??this.applyMoneyFormDaoImpl = applyMoneyFormDaoImpl;
?}
?
?
?public void setPersonTasks(PersonTasks personTasks) {
??this.personTasks = personTasks;
?}

?public ActionForward applyMoney(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??return mapping.findForward("apply_money");
?}
?public ActionForward managerApproval(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??String taskId=request.getParameter("taskId");
??String procesId=personTasks.getProcessInstanceIdByTaskId(taskId);
??ApplyMoneyForm applyMoneyForm=applyMoneyFormDaoImpl.findApplyMoneyForm(procesId);
??request.setAttribute("applyMoneyForm", applyMoneyForm);
??request.setAttribute("taskId", taskId);
??return mapping.findForward("apply_money_manager");
?}
?public ActionForward bossApproval(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??String taskId=request.getParameter("taskId");
??String processId=personTasks.getProcessInstanceIdByTaskId(taskId);
??ApplyMoneyForm applyMoneyForms=applyMoneyFormDaoImpl.findApplyMoneyForm(processId);
??request.setAttribute("applyMoneyForm", applyMoneyForms);
??request.setAttribute("taskId", taskId);
??return mapping.findForward("apply_money_boss");
?}
?/**
? * 发起请假流程
? * @param mapping
? * @param form
? * @param request
? * @param response
? * @return
? * @throws Exception
? */
?public ActionForward startApply(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??ApplyMoneyForm applyMoneyForm=new ApplyMoneyForm();
??BeanUtils.populate(applyMoneyForm,request.getParameterMap());
??String processId=applyMoneyManager.startApplyMoney(applyMoneyForm.getApplyuser());
??applyMoneyManager.applyMoney(applyMoneyForm);
??applyMoneyForm.setProcessid(processId);
??applyMoneyFormDaoImpl.startApplyMoney(applyMoneyForm);
??return mapping.findForward("apply_money");
?}
?/**
? * 经理审批
? * @param mapping
? * @param form
? * @param request
? * @param response
? * @return
? * @throws Exception
? */
?public ActionForward managerApprovaled(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??ApplyMoneyForm applyMoneyForm=new ApplyMoneyForm();
??String taskId=request.getParameter("taskId");
??System.out.println("taskId============>"+taskId);
??BeanUtils.populate(applyMoneyForm,request.getParameterMap());
??applyMoneyManager.confirm(applyMoneyForm, taskId);
??applyMoneyFormDaoImpl.updateApplyMoney(applyMoneyForm, applyMoneyForm.getId());
??return mapping.findForward("apply_money_manager");
?}
?/**
? * 老板审批
? * @param mapping
? * @param form
? * @param request
? * @param response
? * @return
? * @throws Exception
? */
?public ActionForward bossApprovaled(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??ApplyMoneyForm applyMoneyForm=new ApplyMoneyForm();
??String taskId=request.getParameter("taskId");
??BeanUtils.populate(applyMoneyForm, request.getParameterMap());
??applyMoneyManager.confirm(applyMoneyForm, taskId);
??applyMoneyFormDaoImpl.updateApplyMoney(applyMoneyForm,applyMoneyForm.getId());
??return mapping.findForward("apply_money_boss");
?}
?/**
? * 获取用户列表
? * @param mapping
? * @param form
? * @param request
? * @param response
? * @return
? * @throws Exception
? */
?public ActionForward taskLists(ActionMapping mapping, ActionForm form,
???HttpServletRequest request, HttpServletResponse response)
???throws Exception {
??String userName=request.getParameter("username");
??List<Task> taskList=personTasks.findByPerson(userName);
??System.out.println("=========>"+taskList.size());
??request.setAttribute("taskList", taskList);
??return mapping.findForward("index");
?}
}
这就是一个 SSH与JBPM4。3与实际业务相结合。正在探索中学习JBPM啦。

本文中的问题已解决，是因为hibernate得版本问题。我的项目中有两个hibernate，一个是JBPM包下的，一个是我自己加上的。唉，细节呀

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