这篇文章主要介绍了Spring定时任务轮询本地数据库实现过程解析,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
要做的东西很莫名其妙 可以说是数据互通的一个接口吧 当本地有表单提交后 处理一下数据 发送给另一个公司的接口
在表单提交的存库的controller里 直接处理数据 封装 并发送就完事了 .
然而领导叫我写一个接口...接收数据 处理 并发送. 到最后又改成用触发器的方式 然而写触发器的并不会用它发送http请求 我只能用Spring的定时任务 读取数据库的更新状态 并且处理数据 发送到那个公司的接口里
这是httpclient的示例
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1 public class HttpClinet {
2
3 public static String doPost(Object object ) {
4
5 String responseJson = null;
6 //获得http客户端
7 CloseableHttpClient httpClient = HttpClientBuilder.create().build();
8 //创建post请求
9 //处理参数
10 String uri = null;
11 try{
12 uri ="http://10.145.1.12:80/promo/api/approval/todoItem?sourceID=XZBZ&secretKey=OHzwIVM6";
13
14
15 }catch (Exception e){
16 e.printStackTrace();
17 }
18
19 HttpPost httpPost = new HttpPost(uri);
20
21
22 //将对象转换成json字符串 然后存入entity中 请求body
23 System.out.println(JSON.toJSONString(object));
24 StringEntity entity = new StringEntity(JSON.toJSONString(object),"UTF-8");
25
26 //将json字符串放入请求body中
27 httpPost.setEntity(entity);
28
29 //设置请求头
30 httpPost.setHeader("Content-Type","application/json;charset=utf-8");
31
32 //获取response模型
33
34 CloseableHttpResponse response = null;
35 try {
36 //发送post请求后 由response模型接收
37 response = httpClient.execute(httpPost);
38 //从响应模型中获取body
39 HttpEntity responseEntity = response.getEntity();
40
41
42 responseJson = EntityUtils.toString(responseEntity);
43
44 if(responseEntity != null){
45 System.out.println("相应内容为:" + responseJson);
46 }
47 }catch (Exception e){
48 e.printStackTrace();
49 }finally {
50 try {
51 if (httpClient != null){
52 httpClient.close();
53 }if (response != null){
54 response.close();
55 }
56 }catch (Exception e){
57 e.printStackTrace();
58 }
59 }
60 return responseJson;
61
62 }
63 }
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这是定时任务(非quartz)
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http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.0.xsd">
<!-- mybatis配置 -->
<import resource="classpath:applicationContext-mybatis.xml"/>
<task:annotation-driven />
<context:component-scan base-package="com.litsoft.workflowApi.task"/>
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任务的具体方法
@Component
public class SendDataTask {
@Autowired
WorkFlowService workFlowServiceImpl;
//首次推送待审
@Scheduled(cron = "0 */1 * * * ?") // 间隔一分钟执行
public void taskCycle() throws UnsupportedEncodingException {
//第一次推送任务(产生任务),产生新任务则产生审批人,还需要取消掉没有认领任务的审批人的消息
List<ToDoTaskModel> list = workFlowServiceImpl.getToDoTaskInfoBySendStatus("0","100");
ToDoTaskModel toDoTaskModel = new ToDoTaskModel();
for (int i = 0; i < list.size(); i++) {
toDoTaskModel = list.get(i);
//自拼title
//根据workflowID 判断拼接url
String taskID = toDoTaskModel.getTaskID();
String realTaskID = ChangeTaskIDUitl.changeTaskIDUitl(taskID);
String workflowID = toDoTaskModel.getWorkflowID();
String docID = toDoTaskModel.getDocID();
String title = "您有一条新的待审任务" + toDoTaskModel.getTodoTitle() +"等待审批";
String taskStatus = "1";
String submitorID = toDoTaskModel.getSubmitorID();
String loginName = workFlowServiceImpl.getLoginName(submitorID);
String submitorName = toDoTaskModel.getSubmitorName();
String submitDateTime = toDoTaskModel.getSubmitDateTime();
String openUrl = null;
String beforeUrl = "http://oa20.cctv.com/";
String afterUrl = "/myWork/workWait/gwWeChatWait.do?instanceId=";
//5合同
if(workflowID.equals("5")){
openUrl = beforeUrl + "HT_WeChat" + afterUrl +docID +"&workflowId="+workflowID;
}else{
openUrl = beforeUrl + "GW_WeChat" + afterUrl +docID +"&workflowId="+workflowID;
}
String sendStatus = toDoTaskModel.getSendStatus();
//查询审批人的真实ID
//根据docid 和taskstatus =40 来查审批者的submitorID 然后根据这个来查真实工号
//获取数据库查询的 当前审批层级信息
List<ThisLevelInfoModel> tlist = toDoTaskModel.getThisLevelInfoList();
//new一个移动端要的格式的模型
List<ApproverPOJO> approverList = new ArrayList<ApproverPOJO>();
ApproverPOJO approverPOJO = new ApproverPOJO();
for (int j = 0; j < tlist.size(); j++) {
String realApproverID = workFlowServiceImpl.getLoginName(tlist.get(j).getApproverID());
approverPOJO.setDocID(tlist.get(j).getDocID());
approverPOJO.setApproverName(tlist.get(j).getApproverName());
approverPOJO.setApproverID(realApproverID);
approverList.add(approverPOJO);
}
//ToDoTaskPOJO里的最高层对象(list(模型))
ThisLevelInfoPOJO thisLevelInfoPOJO = new ThisLevelInfoPOJO();
thisLevelInfoPOJO.setApproverList(approverList);
ToDoTaskPOJO toDoTaskPOJO = new ToDoTaskPOJO(realTaskID,workflowID,docID,title,taskStatus,loginName,submitorName,submitDateTime,openUrl,sendStatus,thisLevelInfoPOJO);
JSONObject jsonObject= JSONObject.fromObject(toDoTaskPOJO);
String jsonStr = HttpClinet.doPost(jsonObject);
JSONObject jsonCode = JSONObject.fromObject(jsonStr);
if("0".equals(jsonCode.get("errCode"))) {
//这要加判断? 是否是终审人? 条件:提交人工号=审核人工号时 该审批层级未最终审批????
//或者终审层级 有没有审核人 如果没有 移动端返回错误码
if (workFlowServiceImpl.isFirstSend() == 1) {
workFlowServiceImpl.updateSendStatus("2",taskID);
}else{
workFlowServiceImpl.updateSendStatus("1",taskID);}
}else if("当前层级待审人不能为空".equals(jsonCode.get("errDesc"))){
workFlowServiceImpl.updateSendStatus("1",taskID);
}
/*_____________________________________________________________________________________*/
//查询旧表该docID下的所有taskID 并将(taskID和docID)插入新表
//先查询docID下所有的taskID
List<String> taskIDList = new ArrayList<String>();
taskIDList = workFlowServiceImpl.selectAllByDocID(docID);
for (int j = 0; j < taskIDList.size(); j++) {
//想新表插入所有taskID和docID
workFlowServiceImpl.creatAllInfo(taskIDList.get(j),docID);
}
TaskStatusPOJO taskStatusPOJO = new TaskStatusPOJO();
//查询新表和旧表 对比 旧表不存在二新表存在的taskID 通过第二个url推送给WeChat端,删掉消息
List<String> invalidList = new ArrayList<String>();
invalidList = workFlowServiceImpl.SelectInvalidApprover();
String invalidTaskID = null;
for (int j = 0; j < invalidList.size(); j++) {
invalidTaskID = ChangeTaskIDUitl.changeTaskIDUitl(invalidList.get(j));
taskStatusPOJO.setTaskID(invalidTaskID);
taskStatusPOJO.setTaskStatus("2");
JSONObject jsonObj= JSONObject.fromObject(taskStatusPOJO);
HttpSecondSend.doPost(jsonObj);
}
}
//第二个接口 告诉当前待办人审批完结
List<TaskStatusPOJO> secondList = workFlowServiceImpl.getNewStatus("1","100");
TaskStatusPOJO taskStatusPOJO = new TaskStatusPOJO();
for (int i = 0; i < secondList.size(); i++) {
String dID = secondList.get(i).getTaskID();
String docID = secondList.get(i).getOnlyDocID();
String realTaskID =ChangeTaskIDUitl.changeTaskIDUitl(workFlowServiceImpl.getTrueTaskID(docID));
taskStatusPOJO.setTaskID(realTaskID);
taskStatusPOJO.setTaskStatus("2");
JSONObject jsonObject= JSONObject.fromObject(taskStatusPOJO);
String Str = HttpSecondSend.doPost(jsonObject);
JSONObject json = JSONObject.fromObject(Str);
if ("0".equals(json.get("errCode"))) {
workFlowServiceImpl.updateSendStatus("2",dID);
}
}
}
}
其实这个东西很简单 只是需求变三变 从提交表单给我发数据 到用触发器给我发http请求(json串 自己处理数据) 再到最后 我只能去数据库自己查 自己处理数据 自己发
原文链接：/java/534839.html