1.分析几张历史表,查询某用户涉及的所有已办流程实例列表,通过对每个流程实例进行分析。
一种方法是通过jBPM HistoryService历史服务进行操作(参照用户手册5.8. HistoryService历史服务),
另一种方法是自己编写HQL语句实现历史表的查询。
2.自己设计历史记录表,在需要记录的节点使用event-listener进行监听,实现记录。
这里以经典的请假为例子。请假成功,人事可以入库查询。具体流程如下图所示
leaveListener是一个事件监听,配置在app-service.xml中,方便leave.jpdl.xml进行调用
<bean id="leaveListener" class="com.javaeye.oa.web.listener.LeaveListener" >
<property name="leaveService" ref="leaveService"/>
</bean>
<bean id="leaveService" class="com.javaeye.oa.service.task.impl.LeaveServiceImpl">
</bean>
<?xml version="1.0" encoding="UTF-8"?>
<process name="leave" xmlns="http://jbpm.org/4.3/jpdl">
<start g="201,14,48,48" name="开始">
<transition g="-42,-10" name="请假" to="填写请假单"/>
</start>
<task assignee="#{applyName}" g="178,87,92,52" name="填写请假单">
<transition g="-97,2" name="判断是不是经理" to="是不是经理"/>
</task>
<decision expr="#{manager}" g="204,158,48,48" name="是不是经理">
<transition g="-23,-11" name="否" to="经理审核"/>
<transition g="14,-11" name="是" to="老板审批"/>
</decision>
<task assignee="#{approvingOfficer}" g="103,252,92,52" name="经理审核">
<transition g="150,450:10,-21" name="经理批准" to="结束">
<event-listener expr="#{leaveListener}">
<field name="endMsg">
<string value="批准请假,人事入库" />
</field>
</event-listener>
</transition>
<transition g="-22,-22" name="请假天数>3" to="老板审批"/>
<transition g="-61,-1" name="经理不批准" to="终止"/>
<transition g="149,114:-55,82" name="经理驳回" to="填写请假单"/>
</task>
<task assignee="#{approvingOfficer}" g="278,251,92,52" name="老板审批">
<transition g="326,450:-58,-24" name="老板批准" to="结束">
<event-listener expr="#{leaveListener}">
<field name="endMsg">
<string value="批准请假,人事入库" />
</field>
</event-listener>
</transition>
<transition g="7,0" name="老板不批准" to="终止"/>
<transition g="323,114:13,61" name="老板驳回" to="填写请假单"/>
</task>
<end g="219,429,48,48" name="结束" state="confirm"/>
<end g="220,360,48,48" name="终止" state="dissent"/>
</process>
applyName、manager、approvingOfficer几个变量在实际操作中进行设置
endMsg测试时候使用,实际应用中可以删除
当经理批准申请或老板批准申请的时候,事件响应,进行请假申请入库。
package com.javaeye.oa.web.listener;
import org.jbpm.api.listener.EventListener;
import org.jbpm.api.listener.EventListenerExecution;
import com.javaeye.oa.entity.task.Leave;
import com.javaeye.oa.service.task.LeaveService;
public class LeaveListener implements EventListener {
private static final long serialVersionUID = 7098294717133900660L;
private String endMsg;//endMsg测试时候使用,实际应用中可以删除
private LeaveService leaveService;
public void setEndMsg(String endMsg) {
this.endMsg = endMsg;
}
//leaveService进行set注入
public void setLeaveService(LeaveService leaveService) {
this.leaveService = leaveService;
}
public void notify(EventListenerExecution execution) throws Exception {
System.out.println("==============leaveListener:endMsg="+endMsg);
String applyName = (String) execution.getVariable("applyName");
String leaveDay = (String) execution.getVariable("leaveDay");
String applyTime = (String) execution.getVariable("applyTime");
String position = (String) execution.getVariable("position");
String content = (String) execution.getVariable("content");
String approvingOfficer = (String) execution.getVariable("approvingOfficer");
Leave leave = new Leave();
leave.setApplyName(applyName);
leave.setApplyTime(applyTime);
leave.setApprovingOfficer(approvingOfficer);
leave.setContent(content);
leave.setPosition(position);
leave.setLeaveDay(leaveDay);
leaveService.addLeave(leave);
}
}
package com.javaeye.oa.entity.task;
public class Leave implements java.io.Serializable {
private static final long serialVersionUID = -3289821345085237147L;
private Long id;
private String applyName;
private String leaveDay;
private String position;
private String applyTime;
private String content;
private String approvingOfficer;
// Constructors
/** default constructor */
public Leave() {
}
...
当一切就绪,我们便开始进行实际操作。
一。员工dylan点击请假链接
public String leave() {
Map<String, Object> variables = new HashMap<String, Object>();
//applyName对应leave.jpdl.xml中相应变量,这里applyName为dylan
variables.put("applyName", "dylan");
ExecutionService executionService = processEngine.getExecutionService();
ProcessInstance processInstance = executionService.startProcessInstanceByKey("leave",variables);
if (processInstance.isActive("填写请假单")) {
url = "apply";
}
return url;
}
二。dylan在请假页面填写请假申请单
<%@page contentType="text/html;charset=UTF-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>填写申请单</title>
</head>
<body>
<form action="apply.action" method="POST">
<table width="300" border=1>
<tr>
<td><label>申请人</label></td>
<td><input type="text" value="dylan" name="applyName"></td>
</tr>
<tr>
<td><label>职位</label></td>
<td><input type="text" value="员工" name="position"></td>
</tr>
<tr>
<td><label>申请时间</label></td>
<td><input type="text" value="2010-01-10" name="applyTime"></td>
</tr>
<tr>
<td><label>请假天数</label></td>
<td><input type="text" value="1" name="leaveDay"></td>
</tr>
<tr>
<td><label>请假原因</label></td>
<td><textarea name="content" rows=3 cols=200>病假</textarea></td>
</tr>
<tr>
<td><input type="submit" value="申请"></td>
<td><input type="reset" value="取消"></td>
</tr>
</table>
</form>
</body>
</html>
三。dylan填写完成,提交请假单
public String apply() {
Map<String,Object> variables = new HashMap<String,Object>();
String applyName = getRequest().getParameter("applyName");
String applyTime = getRequest().getParameter("applyTime");
String leaveDay = getRequest().getParameter("leaveDay");
String content = getRequest().getParameter("content");
String position = getRequest().getParameter("position");
variables.put("applyName", applyName);
variables.put("applyTime", applyTime);
variables.put("leaveDay", leaveDay);
variables.put("content", content);
variables.put("position", position);
if (position.trim().equals("经理")) {
variables.put("manager", "是");
variables.put("approvingOfficer", "S老板");
} else {
variables.put("manager", "否");
variables.put("approvingOfficer", "T经理");
}
TaskService taskService = processEngine.getTaskService();
//dylan即请假启动的时候applyName的值
taskList = taskService.findPersonalTasks("dylan");
task = taskList.get(0);
taskService.setVariables(task.getId(), variables);
taskService.completeTask(task.getId());
return SUCCESS;
}
四。请假1天,职位为员工,直接经理进行审批,审批通过,即入库
public String confirm() {
Map<String, Object> variables = new HashMap<String, Object>();
TaskService taskService = processEngine.getTaskService();
ExecutionService executionService = processEngine
.getExecutionService();
task = taskService.getTask(taskId);
execution = executionService.findExecutionById(task.getExecutionId());
if (execution.getProcessInstance().isActive("老板审批")) {
//approvingOfficer如果已存在值,则把之前值覆盖
variables.put("approvingOfficer", "S老板");
taskService.completeTask(taskId, "老板批准");
} else if (execution.getProcessInstance().isActive("经理审核")) {
String variable = (String) taskService.getVariable(taskId, "leaveDay");
if (Integer.valueOf(variable) > 3) {
taskService.completeTask(taskId, "请假天数>3");
} else {
taskService.completeTask(taskId, "经理批准");
}
}
return SUCCESS;
}
入库之后,人事即可对请假情况进行查看考核=。=
本文在family168的请假例子上进行简单修改,基于SSH+jBPM4.3,实现自定义历史表查询。
关于历史事件中,variable的具体情况可参考
http://www.family168.com/jbpm4/history.html
http://phoenix-clt.iteye.com/blog/426714
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