Posted on 2009-12-09 00:51
penngo 閱讀(5214)
評論(36) 編輯 收藏 所屬分類:
JBPM
本次用的是一個特別流程,假設C提交一個表單,這個表單需要給A和B閱讀,而A和B閱讀過后,流程結束.
流程定義文件swing.jpdl.xml
<?xml version="1.0" encoding="UTF-8"?>
<process name="swing" xmlns="http://jbpm.org/4.0/jpdl">
<start g="94,64,48,48" name="start1">
<transition g="-52,-22" name="A" to="A"/>
</start>
<task assignee="A" g="73,195,92,52" name="A">
<transition g="-52,-22" name="B" to="B"/>
</task>
<task assignee="B" g="266,192,92,52" name="B">
<transition g="-40,-21" name="end" to="end1"/>
</task>
<end g="290,327,48,48" name="end1"/>
</process>
流程圖
增加兩個表:
用戶表p_user:
USER_ 用戶登錄ID
PASSWORD_ 用戶登錄密碼
表單數據表p_form:
ID_ 表單編號
TITLE_ 表單標題
CONTENT_ 表單內容
PROCESS_ID 流程實例ID
p_form除了記錄表單數據,還記錄啟動流程實例的ID,這個表負責把表單和流程關聯起來.
提交表單時的操作,FormPanel.java部分代碼:
okBtn = new JButton("提交表單");
okBtn.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e){
String t = title.getText().trim();
String c = content.getText().trim();
String processId = startProcessInstance();
DataBase db = new DataBase();
if(db.saveForm(t, c, processId)){
JOptionPane.showMessageDialog(null, "保存表單數據成功:");
title.setText("");
content.setText("");
}
}
});
private String startProcessInstance(){
Configuration configuration = new Configuration();
ProcessEngine processEngine = configuration.buildProcessEngine();
RepositoryService repositoryService = processEngine.getRepositoryService();
ExecutionService executionService = processEngine.getExecutionService();
ProcessInstance processInstance = executionService.startProcessInstanceByKey("swing");
if(processInstance == null){
JOptionPane.showMessageDialog(null, "請先發布流程.");
}
else{
return processInstance.getId();
}
return "";
}
代碼很簡單,行獲取表單的數據,再啟動流程實例,并把表單數據和流程實例ID一起保存在數據庫表p_form.
在用戶處理任務時,先根據用戶的ID查找到該用戶的待處理任務,并把它添加到任務列表中,
DefaultListModel v = new DefaultListModel();
List list = getTaskList(Login.userName);
if(list.size() > 0){
for(int s = 0; s < list.size(); s++){
Task t = (Task)list.get(s);
String executionId = t.getExecutionId();
DataBase db = new DataBase();
TaskPojo tp = db.findForm(executionId);
tp.setTaskId(t.getId());
if(tp != null){
v.addElement(tp);
}
}
}
jList = new JList(v);
.
private List getTaskList(String userId){
if(configuration == null){
configuration = new Configuration();
}
ProcessEngine processEngine = configuration.buildProcessEngine();
RepositoryService repositoryService = processEngine.getRepositoryService();
ExecutionService executionService = processEngine.getExecutionService();
TaskService taskService = processEngine.getTaskService();
HistoryService historyService = processEngine.getHistoryService();
ManagementService managementService = processEngine.getManagementService();
List<Task> taskList = taskService.findPersonalTasks(userId);
return taskList;
}
用戶處理任務,根據列表中選中記錄中的流程實例任務ID,調用taskService.completeTask(taskId)完成任務,
okBtn = new JButton("審閱通過");
okBtn.addActionListener( new ActionListener(){
public void actionPerformed(ActionEvent e){
Object o = jList.getSelectedValue();
if(o instanceof TaskPojo){
TaskPojo tp = (TaskPojo)o;
completeTask(tp.getTaskId());
JOptionPane.showMessageDialog(null, "審核已經通過!");
DefaultListModel dl = (DefaultListModel)jList.getModel();
dl.remove(jList.getSelectedIndex());
buttomPanel.setVisible(false);
}
}
});
..
private void completeTask(String taskId){
if(configuration == null){
configuration = new Configuration();
}
ProcessEngine processEngine = configuration.buildProcessEngine();
TaskService taskService = processEngine.getTaskService();
taskService.completeTask(taskId);
}
數據庫中登錄用戶:
帳號:A 密碼:123
帳號:B 密碼:123
帳號:D 密碼:123
用戶D登錄
圖1
圖2
用戶A登錄
圖3
查看待辦任務
圖4
用戶B登錄
圖5
查看B的待辦任務
圖6
本人的開發環境
eclipse3.5
JBPM4.2
mysql-essential-5.1.40-win32
JDK1.6
要運行這個例子,需要修改jbpm.hibernate.cfg.xml,DataBase.java數據庫的連接信息
測試代碼:jbpmTest