JBPM4—请假流程
1、流程图
2、流程配置文件
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<?xml version="1.0" encoding="UTF-8"?>
<process name="leave" xmlns="http://jbpm.org/4.4/jpdl">
<start g="300,72,48,48" name="start1">
<transition to="申请"/>
</start>
<end g="300,468,48,48" name="end1"/>
<task assignee="#{owner}" g="276,156,92,52" name="申请" form="request.jsp">
<transition g="-71,-17" name="经理审批" to="经理审批"/>
</task>
<task assignee="manager" g="276,264,92,52" name="经理审批" form="manager.jsp">
<transition g="-23,-6" name="批准" to="exclusive1"/>
<transition name="驳回" to="申请" g="492,290;493,181:-30,-1"/>
</task>
<decision expr="#{day > 3 ? '老板审批':'结束'}" g="300,360,48,48" name="exclusive1">
<transition g="492,384:-71,-17" name="老板审批" to="老板审批"/>
<transition g="-24,-16" name="结束" to="end1"/>
</decision>
<task assignee="boss" g="444,468,92,52" name="老板审批" form="boss.jsp">
<transition g="-22,-15" name="结束" to="end1"/>
</task>
</process>
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3、登陆页面（login.jsp）
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>登陆</title>
</head>
<body>
<fieldset>
<legend>登陆</legend>
<form action="doLogin.jsp" method="post">
用户名：
<input type="text" name="username" value=""/>
<input type="submit" value="登陆">
</form>
</fieldset>
</body>
</html>
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4、登陆处理页面（doLogin.jsp）
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<%
String username=request.getParameter("username");
session.setAttribute("username", username);
response.sendRedirect("index.jsp");
%>
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5、流程定义列表、流程实例列表、任务列表页面（index.jsp）
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="java.util.*,org.jbpm.api.*,org.jbpm.api.task.*" %>
<%@ include file="/checklogin.jsp" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JBPM请假流程</title>
</head>
<body>
<a href="index.jsp?action=deploy">发布流程</a>|<a href="login.jsp">登陆</a><br/>
<%
/**
*流程引擎采用单例模式实现，每次调用的都是一个流程引擎，提高程序效率
*/
ProcessEngine processEngine=Configuration.getProcessEngine();
/**
*发布服务：
*1、流程发布
*2、管理流程、删除流程、查看流程
*/
RepositoryService repositoryService = processEngine.getRepositoryService();
/**
*执行服务
*1、获取流程实例
*/
ExecutionService executionService=processEngine.getExecutionService();
/**
*任务服务
*/
TaskService taskService=processEngine.getTaskService();
String action=request.getParameter("action");
if("deploy".equals(action))
{
repositoryService.createDeployment().addResourceFromClasspath("leave.jpdl.xml").deploy();
}
else if("remove".equals(action))
{
repositoryService.deleteDeploymentCascade(request.getParameter("id"));
}
/**
*获取流程定义列表，可以看到本工程都发布了哪些流程
*/
List<ProcessDefinition> processDefitionList=repositoryService.createProcessDefinitionQuery().list();
/**
*获取流程实例列表，可以查看本工程中启动了哪些流程实例
*/
List<ProcessInstance> piList=executionService.createProcessInstanceQuery().list();
/**
*获取任务列表,可以查看某人所有代表任务
*/
String username1=(String)session.getAttribute("username");
List<Task> taskList=taskService.findPersonalTasks(username1);
%>
<table border=1 width="100%">
<caption>流程定义</caption>
<thead>
<tr>
<th>id</th>
<th>name</th>
<th>version</th>
<th>option</th>
</tr>
</thead>
<tbody>
<%
/**
*循环输入发布的流程定义
*/
for(ProcessDefinition pd : processDefitionList){
%>
<tr>
<td><%=pd.getId() %></td>
<td><%=pd.getName() %></td>
<td><%=pd.getVersion() %></td>
<td>
<a href="index.jsp?action=remove&id=<%=pd.getDeploymentId() %>">remove</a>|
<a href="start.jsp?id=<%=pd.getId() %>">start</a>
</td>
</tr>
<%} %>
</tbody>
</table>
<br/>
<table border="1" width="100%">
<caption>流程实例</caption>
<thead>
<tr>
<th>id</th>
<th>action</th>
<th>state</th>
<th>option</th>
</tr>
</thead>
<tbody>
<%
/**
*循环输入流程实例
*/
for(ProcessInstance pi : piList)
{
%>
<tr>
<td><%=pi.getId() %></td>
<td><%=pi.findActiveActivityNames() %></td>
<td><%=pi.getState() %></td>
<td>
<a href="view.jsp?id=<%=pi.getId() %>">view</a>
</td>
</tr>
<%} %>
</tbody>
</table>
<br/>
<table border="1" width="100%">
<caption>代办任务</caption>
<thead>
<tr>
<th>id</th>
<th>action</th>
<th>option</th>
</tr>
</thead>
<tbody>
<%
/**
*循环输出代办任务列表
*/
for(Task task :taskList)
{
%>
<tr>
<td><%=task.getId() %></td>
<td><%=task.getActivityName() %></td>
<td><a href="<%=task.getFormResourceName() %>?id=<%=task.getId() %>">view</a></td>
</tr>
<%} %>
</tbody>
</table>
</body>
</html>
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6、请假申请页面（request.jsp）
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>填写申请单</title>
</head>
<body>
<fieldset>
<legend>申请</legend>
<form action="submit.jsp" method="post">
<input type="hidden" name="taskId" value="${param.id }"/>
申请人：<input type="text" name="owner" value="${sessionScope['username'] }"><br/>
请假时间：<input type="text" name="day" value=""/><br/>
请假原因：<input type="text" name="reason" value=""/><br/>
<input type="submit" value="提交">
</form>
</fieldset>
</body>
</html>
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7、请假申请处理页面（submit.jsp）
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<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="java.util.*,org.jbpm.api.*,org.jbpm.api.task.*" %>
<%
ProcessEngine processEngine=Configuration.getProcessEngine();
TaskService taskServace=processEngine.getTaskService();
String taskId=request.getParameter("taskId");
String owner=request.getParameter("owner");
int day =Integer.parseInt(request.getParameter("day"));
String reason=request.getParameter("reason");
Map map=new HashMap();
map.put("day", day);
map.put("reason", reason);
taskServace.setVariables(taskId, map);
taskServace.completeTask(taskId);
response.sendRedirect("index.jsp");
%>
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8、经理审批页面（manager.jsp）
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="java.util.*,org.jbpm.api.*,org.jbpm.api.task.*" %>
<%@ include file="/checklogin.jsp" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>经理审批</title>
</head>
<body>
<%
ProcessEngine processEngine=Configuration.getProcessEngine();
TaskService taskService=processEngine.getTaskService();
String taskId=request.getParameter("id");
Task task=taskService.getTask(taskId);
%>
<fieldset>
<legend>经理审批</legend>
<form action="submit_manager.jsp" method="post">
<input type="hidden" name="taskId" value="${param.id }">
申请人：<%=taskService.getVariable(taskId, "owner") %><br/>
申请时间：<%=taskService.getVariable(taskId, "day") %><br/>
申请原因：<%=taskService.getVariable(taskId, "reason") %><br/>
<input type="submit" value="批准" name="result"/>
<input type="submit" value="驳回" name="result"/>
</form>
</fieldset>
</body>
</html>
9、经理审批处理页面（submit_manager.jsp）
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<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="java.util.*,org.jbpm.api.*,org.jbpm.api.task.*" %>
<%
ProcessEngine processEngine=Configuration.getProcessEngine();
TaskService taskServace=processEngine.getTaskService();
String taskId=request.getParameter("taskId");
String result=request.getParameter("result");
result=new String(result.getBytes("ISO-8859-1"),"UTF-8");
//Map map=new HashMap();
//taskServace.setVariables(taskId, map);
taskServace.completeTask(taskId,result);
response.sendRedirect("index.jsp");
%>
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10、老板审批页面（boss.jsp）
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page import="java.util.*,org.jbpm.api.*,org.jbpm.api.task.*" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>老板审批</title>
</head>
<body>
<%
ProcessEngine processEngine=Configuration.getProcessEngine();
TaskService taskService=processEngine.getTaskService();
String taskId=request.getParameter("id");
Task task=taskService.getTask(taskId);
%>
<fieldset>
<legend>老板审批</legend>
<form action="submit_boss.jsp" method="post">
<input type="hidden" name="taskId" value="${param.id }">
申请人：<%=taskService.getVariable(taskId, "owner") %><br/>
申请时间：<%=taskService.getVariable(taskId, "day") %><br/>
申请原因：<%=taskService.getVariable(taskId, "reason") %><br/>
<input type="submit" value="批准" name="result"/>
</form>
</fieldset>
</body>
</html>
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11、老板审批处理页面（submit_boss.jsp）
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<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@ page import="java.util.*,org.jbpm.api.*,org.jbpm.api.task.*" %>
<%
ProcessEngine processEngine=Configuration.getProcessEngine();
TaskService taskServace=processEngine.getTaskService();
String taskId=request.getParameter("taskId");
taskServace.completeTask(taskId,"结束");
response.sendRedirect("index.jsp");
%>
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12、登陆检测页面（checklogin.jsp）
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<%
String username=(String)session.getAttribute("username");
if("".equals(username)||null==username)
{
response.sendRedirect("login.jsp");
}
%>
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