使用fork/join的常见错误

在实际的流程设计中常常会出现如下的流程：

看上去没什么问题，那么开始编程

xml 代码

1. <!---->xml?version="1.0"?encoding="UTF-8"?>??
2. <process-definition?xmlns=""?name="yytest">??
3. ???<start-state?name="start">??
4. ??????<transition?name=""?to="f1">transition>??
5. ???start-state>??
6. ???<fork?name="f1">??
7. ??????<transition?name="to_s1"?to="s1">transition>??
8. ??????<transition?name="to_j1_1"?to="j1">transition>??
9. ???fork>??
10. ???<state?name="s1">??
11. ??????<transition?name=""?to="f2">transition>??
12. ???state>??
13. ???<fork?name="f2">??
14. ??????<transition?name="to_j2_1"?to="j2">transition>??
15. ??????<transition?name="to_s2"?to="s2">transition>??
16. ???fork>??
17. ???<state?name="s2">??
18. ??????<transition?name="to_j2_2"?to="j2">transition>??
19. ???state>??? ??
20. ???<join?name="j2">??
21. ????????<transition?name="to_j1_2"?to="j1">transition>??
22. ???join>??
23. ???<join?name="j1">??
24. ??????<transition?name=""?to="s3">transition>??
25. ???join>??
26. ???<state?name="s3">??
27. ??????<transition?name=""?to="end">transition>??
28. ???state>??
29. ???<end-state?name="end">end-state>??
30. ??? ??
31. ??
32. process-definition>??

java 代码

1. private?static?void?run(){ ??
2. ????????JbpmContext?jbpmContext?=?jbpmConfiguration.createJbpmContext(); ??
3. ????????try?{ ??
4. ????????????long?processInstanceId?=1; ??
5. ???????????????processInstance?=?jbpmContext.loadProcessInstance(processInstanceId); ??
6. ???????????????Token?root?=?processInstance.getRootToken(); ??
7. ???????????????root.signal(); ??
8. ???????????????Token?to_s1?=?root.getChild("to_s1"); ??
9. ???????????????Token?to_j1_1?=?root.getChild("to_j1_1"); ??
10. ???????????????System.out.println("root:"+root.getNode());//root:Fork(f1) ??
11. ???????????????System.out.println("to_s1:"+to_s1.getNode());//to_s1:State(s1) ??
12. ???????????????System.out.println("to_j1_1:"+to_j1_1.getNode());//to_j1_1:Join(j1) ??
13. ???????????????to_s1.signal(); ??
14. ???????????????Token?to_s2?=?to_s1.getChild("to_s2"); ??
15. ???????????????Token?to_j2_1?=?to_s1.getChild("to_j2_1"); ??
16. ???????????????System.out.println("root:"+root.getNode());//root:Fork(f1) ??
17. ???????????????System.out.println("to_s2:"+to_s2.getNode());//to_s2:State(s2) ??
18. ???????????????System.out.println("to_j2_1:"+to_j2_1.getNode());//to_j2_1:Join(j1) ??
19. ???????????????to_s2.signal(); ??
20. ???????????????System.out.println("root:"+root.getNode()); ??
21. ???????????????//正确：root:State(s3) ??
22. ????????????}finally?{ ??
23. ??????????????jbpmContext.close(); ??
24. ????????????} ??
25. ??
26. ????}?????

1 楼 抛出异常的爱 2006-12-05 D:/eclipse/jbpm/jbpm-starters-kit-3.1.2/jbpm-designer/workspace/yytestjbpm/processes/yytest/processimage.jpg

注意先上传之后再用网络URL引用图片 2 楼 jeffen2006 2006-12-05 如何上传呢？我点插入图片的按钮，弹出的对话框中没有上传的功能，我就copy的地址。