1.所有任务完成，流程也就结束了，查询历史任务或历史流程就要操作act_hi_taskinst表，用的都是historyService来调用相关的方法。
本节示例查询历史任务，历史流程便不再专门示例。
2.后台业务代码，
（1）自定义的任务实体类
[java]
view plain copypackage model;
import java.util.Date;
public class HisTaskModel {
private String id;
private String name;
private String assignee;
private String processInstanceId;
private Date startTime;
private Date endTime;
private String cause;
private String content;
private String taskType;
public String getCause() {
return cause;
}
public void setCause(String cause) {
this.cause = cause;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
public String getTaskType() {
return taskType;
}
public void setTaskType(String taskType) {
this.taskType = taskType;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAssignee() {
return assignee;
}
public void setAssignee(String assignee) {
this.assignee = assignee;
}
public String getProcessInstanceId() {
return processInstanceId;
}
public void setProcessInstanceId(String processInstanceId) {
this.processInstanceId = processInstanceId;
}
public Date getStartTime() {
return startTime;
}
public void setStartTime(Date startTime) {
this.startTime = startTime;
}
public Date getEndTime() {
return endTime;
}
public void setEndTime(Date endTime) {
this.endTime = endTime;
}
@Override
public String toString() {
return "HisTaskModel [id=" + id + ", name=" + name + ", assignee="
+ assignee + ", processInstanceId=" + processInstanceId
+ ", startTime=" + startTime + ", endTime=" + endTime
+ ", cause=" + cause + ", content=" + content + ", taskType="
+ taskType + "]";
}
}
（2）业务逻辑：
这里需要注意的是，历史表中存在并非是单一类型的数据，就拿历史任务表来说，里边既有已经结束的任务，也有还没有结束的任务。
如果要单独查询结束了的任务，就可以调用finished()方法，查询的就是已经结束的任务。
[java]
view plain copy/**
* 查询我的历史任务
*
* @author：tuzongxun
* @Title: hisTask
* @param @param req
* @param @return
* @return Object
* @date Mar 18, 2016 9:12:07 AM
* @throws
*/
@RequestMapping(value = "/hisTask.do", method = RequestMethod.POST, produces = "application/json;charset=utf-8")
@ResponseBody
public Object hisTask(HttpServletRequest req) {
Map<String, Object> map = new HashMap<String, Object>();
boolean isLogin = this.isLogin(req);
if (isLogin) {
HttpSession session = req.getSession();
String assignee = (String) session.getAttribute("userName");
List<HistoricTaskInstance> hisTaskList1 = historyService
.createHistoricTaskInstanceQuery().taskAssignee(assignee)
.finished().list();
List<HisTaskModel> hisTaskList = new ArrayList<HisTaskModel>();
for (HistoricTaskInstance hisTask : hisTaskList1) {
HisTaskModel hisModel = new HisTaskModel();
List<HistoricVariableInstance> hisList = historyService
.createHistoricVariableInstanceQuery()
.processInstanceId(hisTask.getProcessInstanceId())
.list();
for (HistoricVariableInstance hisVariable : hisList) {
String name = hisVariable.getVariableName();
if (name.equals("content")) {
hisModel.setContent((String) hisVariable.getValue());
} else if (name.equals("cause")) {
hisModel.setCause((String) hisVariable.getValue());
} else if (name.equals("taskType")) {
hisModel.setTaskType((String) hisVariable.getValue());
}
}
hisModel.setAssignee(hisTask.getAssignee());
hisModel.setEndTime(hisTask.getEndTime());
hisModel.setId(hisTask.getId());
hisModel.setName(hisTask.getName());
hisModel.setProcessInstanceId(hisTask.getProcessInstanceId());
hisModel.setStartTime(hisTask.getStartTime());
hisTaskList.add(hisModel);
}
map.put("isLogin", "yes");
map.put("userName",
(String) req.getSession().getAttribute("userName"));
map.put("result", "success");
map.put("data", hisTaskList);
} else {
map.put("isLogin", "no");
}
return map;
}
3.angular js前台代码（前台只是做简单的展示，不多讲）：
（1）app.js中配置路由：
[javascript]
view plain copy$stateProvider
.state('hisTask', {
url: "/hisTask",
views: {
'view': {
templateUrl: 'activi_views/hisTask.html',
controller: 'hisTaskCtr'
}
}
});
（2）逻辑相关代码：
[javascript]
view plain copyangular.module('activitiApp')
.controller('hisTaskCtr', ['$rootScope','$scope','$http','$location', function($rootScope,$scope,$http,$location){
$scope.init=function(){
$http.post("./hisTask.do").success(function(result) {
if(result.isLogin==="yes"){
console.log(result.data);
$rootScope.userName=result.userName;
$scope.taskList=result.data;
}else{
$location.path("/login");
}
});
}
}])
4.对应的填写相关信息的页面：
[html]
view plain copy<div id="logdiv1" ng-init="init();">
<p style="font-size:24px;margin-top:10px">历史任务列表</p>
<center>
<table border="1px" style="width:87%;font-size:18px;text-align:center;margin-top:1px;margin-left:2px;position:relative;float:left;" cellSpacing="0px" cellPadding="0px">
<tr style="background-color:#ccc">
<td>类型</td>
<td>ID</td>
<td>NAME</td>
<td>流程实例Id</td>
<td>开始时间</td>
<td>受理人</td>
<td>完成时间</td>
<td>发起原因</td>
<td>内容</td>
</tr>
<tr ng-repeat="task in taskList | orderBy:'id'" >
<td>{{task.taskType}}</td>
<td>{{task.id}}</td>
<td>{{task.name}}</td>
<td>{{task.processInstanceId}}</td>
<td>{{task.startTime | date:"yyyy-MM-dd HH:mm:ss"}}</td>
<td>{{task.assignee}}</td>
<td>{{task.endTime | date:"yyyy-MM-dd HH:mm:ss"}}</td>
<td>{{task.cause}}</td>
<td>{{task.content}}</td>
</tr>
</table>
</center>
</div>
