简单工作流实现

//main入口类 public class FlowTurnMain { Object it = new Object(); Map<String,TaskNode> map = new HashMap<String, TaskNode>(); FlowTurnMain(){ map.put("张三", new TaskNode("ancd","张三")); map.put("李四", new TaskNode("abcd","李四")); } //流转过程 public void gaveItToTaskNode(String TaskNode,Object it) throws FlowTurnNullException{ String[] tn = TaskNode.split(","); for(String t : tn){ TaskNode obj = map.get(t); if(obj == null){ throw new FlowTurnNullException("对象"+t+"为空，请重新填写！"); } obj.setIt(it); } } /** * 例子 * @param args * @throws FlowTurnNullException */ public static void main(String[] args) throws FlowTurnNullException { FlowTurnMain ftm = new FlowTurnMain(); FlowObj obj = new FlowObj(); obj.setId("王五"); obj.setContent("请假十天"); //王五操作 流转 张三 ftm.gaveItToTaskNode("张三", obj); FlowObj fobj = (FlowObj)ftm.map.get("张三").getIt(); System.out.println("张三看:"+(fobj).getId()+" , "+ fobj.getContent()); //张三传给李四 ftm.gaveItToTaskNode("李四", obj); FlowObj flobj = (FlowObj)ftm.map.get("李四").getIt(); System.out.println("李四看:"+(flobj).getId()+" , "+ flobj.getContent()); } } //流转对象，内容 class FlowObj{ String id ; String content; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } public String toString(){ return this.content; } } //异常处理 class FlowTurnNullException extends Exception{ /** * */ private static final long serialVersionUID = 1L; FlowTurnNullException(String msg){ super(msg); } FlowTurnNullException(){ super("流转对象为空，请重新填写!"); } } //节点 class TaskNode<T>{ T it ; String name; TaskNode(T it,String name){ this.it = it; this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } public T getIt() { return it; } public void setIt(T it) { this.it = it; } }  

以上不解释