Quartz使用(6) - Quartz项目实战
本片博文将阐述项目工作中使用Quartz的情况,包含项目背景、项目框架、Quartz集群部署等方面,重点讲述如何在实际项目中使用Quartz。
1. 背景
因项目需求,需要定时调用数据下载接口,并将数据存储至诸如mongo、redis、elasticsearch等数据库或缓存中。具体涉及到的需求如下:
a. 调用接口的任务均从mongo数据库读取;
b. 任务的个数随着业务量的增加而增加;
c. 每个调用任务的定时执行时间可能不同,且定时执行时间在mongo中可配置;
d. 任务的执行需要动态更新,如检测到某一任务的定时时间发生变化,则任务的执行也需要实时修改
e. mongo、redis、elasticsearch等数据库中所存储的字段也由mongo进行配置;
f. 任务执行需要实时性较高、可靠性较强、可扩展性较高等
综上需求,调研了一番,发现任务调度框架Quartz可满足项目需求。
2. 框架
基于项目的需求,结合任务调度框架Quartz,大体的流程框架如下图所示:
1) 首先构建从mongo加载任务
2) 将任务的配置信息初始化至Quartz
3) 通过Quartz的Job任务实现定时调用下载接口任务
4) 将下载的数据依据配置,存储至数据库中
5) 定时检测任务通过定时扫描mongo数据库,查看相关任务信息的配置是否发生变化,如果发生变化,则进行动态更新
6) 为了实现高可用性、可扩展性,可以直接使用Quartz原生的集群特性。
3. 核心代码
核心代码将会涵盖上述流程图中的相关环节,为了项目的保密性,相关信息也会隐藏。
3.1 任务主流程
import com.quartz.conf.Configuration;
import com.quartz.conf.OcpConfHelper;
import com.quartz.module.TaskInfo;
import org.apache.log4j.PropertyConfigurator;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.impl.StdSchedulerFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.util.List; public class SchedulerRunner {
static Logger logger = LoggerFactory.getLogger(SchedulerRunner.class); public static void main(String[] args) { // 加载日志配置文件
PropertyConfigurator.configure("./conf/log4j.properties"); // 加载quartz配置文件
System.setProperty("org.quartz.properties", "./conf/quartz.properties"); // 执行任务解析与调度
run();
} public static void run(){
// 获取配置信息表
List<TaskInfo> taskInfos = GenerateTaskInfo.generateTaskInfoFromMysql();
if(taskInfos.size() == 0){
logger.info("there is no tasks from mongoInfo");
return;
} // 过滤下线任务
taskInfos = GenerateTaskInfo.filterTask(taskInfos);
if(taskInfos.size() == 0){
logger.info("all tasks if offline, no need to run");
return;
} Scheduler scheduler = null;
try {
scheduler = StdSchedulerFactory.getDefaultScheduler();
} catch (SchedulerException e) {
e.printStackTrace();
} if(scheduler == null){
logger.error("create scheduler failed");
return;
} if(isSchedulerClear()){
clearSchedulerJob(scheduler);
} // 加入任务调度
for(TaskInfo task : taskInfos){
SchedulerFactory.addJob2Scheduler(task, scheduler);
} // 加入动态更新任务
SchedulerFactory.addDynamicUpdateJob2Scheduler(scheduler); // 开启任务
try {
scheduler.start();
} catch (SchedulerException e) {
logger.error("start scheduler error!");
}
} public static void clearSchedulerJob(Scheduler scheduler){
try {
scheduler.clear();
} catch (SchedulerException e) {
logger.error("clear scheduler error!");
}
} /**
* 基于配置文件中的信息,加载调度器开始运行时的清洗标识
* @return
*/
private static boolean isSchedulerClear(){
Configuration conf = OcpConfHelper.getInstance().getOcpConf();
return conf.getBooleanValue("cleanSchedulerFlag", "true");
}
}
3.2 封装任务对象
import java.util.List;
import java.util.Map; public class TaskInfo { protected String categoryId; // 业务Id
protected String categoryName; // 业务名称
protected String sourceId; // 信源Id
protected String sourceName; // 信源名称
protected int sourceStatus; // 信源状态
protected String pipelineConf; // 信源pipeline配置信息
protected List<String> dbStoreTypes; // 业务的存储类型
protected String esConfInfo; // ES存储配置
protected String dbConfInfo; // DB存储配置
protected String cronInfo; // 定时任务信息
protected int sourceType; // 实时更新还是离线更新
protected List<String> indexBuildEles; // 更新索引的信息
protected List<String> idBuildEles; // id的构建因素
protected String indexType; // 全量或增量
protected String categoryLevel1; // 一级分类
protected String zhName; // 中文信息
protected Map<String,String> outputType; //输出参数名及其类型
protected String providerName;
protected String functionName; //category_function名称 public String getProviderName() {
return providerName;
} public void setProviderName(String providerName) {
this.providerName = providerName;
} public String getCategoryId() {
return categoryId;
} public void setCategoryId(String categoryId) {
this.categoryId = categoryId;
} public String getCategoryName() {
return categoryName;
} public void setCategoryName(String categoryName) {
this.categoryName = categoryName;
} public String getSourceId() {
return sourceId;
} public void setSourceId(String sourceId) {
this.sourceId = sourceId;
} public String getSourceName() {
return sourceName;
} public void setSourceName(String sourceName) {
this.sourceName = sourceName;
} public int getSourceStatus() {
return sourceStatus;
} public void setSourceStatus(int sourceStatus) {
this.sourceStatus = sourceStatus;
} public String getPipelineConf() {
return pipelineConf;
} public void setPipelineConf(String pipelineConf) {
this.pipelineConf = pipelineConf;
} public String getEsConfInfo() {
return esConfInfo;
} public void setEsConfInfo(String esConfInfo) {
this.esConfInfo = esConfInfo;
} public String getDbConfInfo() {
return dbConfInfo;
} public void setDbConfInfo(String dbConfInfo) {
this.dbConfInfo = dbConfInfo;
} public String getCronInfo() {
return cronInfo;
} public void setCronInfo(String cronInfo) {
this.cronInfo = cronInfo;
} public int getSourceType() {
return sourceType;
} public void setSourceType(int sourceType) {
this.sourceType = sourceType;
} public List<String> getIdBuildEles() {
return idBuildEles;
} public void setIdBuildEles(List<String> idBuildEles) {
this.idBuildEles = idBuildEles;
} public List<String> getIndexBuildEles() {
return indexBuildEles;
} public void setIndexBuildEles(List<String> indexBuildEles) {
this.indexBuildEles = indexBuildEles;
} public String getIndexType() {
return indexType;
} public void setIndexType(String indexType) {
this.indexType = indexType;
} public String getCategoryLevel1() {
return categoryLevel1;
} public void setCategoryLevel1(String categoryLevel1) {
this.categoryLevel1 = categoryLevel1;
} public String getZhName() {
return zhName;
} public void setZhName(String zhName) {
this.zhName = zhName;
} public TaskInfo(){} public List<String> getDbStoreTypes() {
return dbStoreTypes;
} public void setDbStoreTypes(List<String> dbStoreTypes) {
this.dbStoreTypes = dbStoreTypes;
} public Map<String, String> getOutputType() {
return outputType;
} public void setOutputType(Map<String, String> outputType) {
this.outputType = outputType;
} public String getFunctionName() {
return functionName;
} public void setFunctionName(String functionName) {
this.functionName = functionName;
} /**
* 是否有相同的定时信息
* @param taskInfo
* @return
*/
public boolean hasSameCronInfo(TaskInfo taskInfo){
if(taskInfo == null) return false;
return this.getCronInfo().equalsIgnoreCase(taskInfo.getCronInfo());
} @Override
public String toString() {
return "TaskInfo{" +
"categoryId='" + categoryId + '\'' +
", categoryName='" + categoryName + '\'' +
", sourceId='" + sourceId + '\'' +
", sourceName='" + sourceName + '\'' +
", sourceStatus=" + sourceStatus +
", pipelineConf='" + pipelineConf + '\'' +
", dbStoreTypes=" + dbStoreTypes +
", esConfInfo='" + esConfInfo + '\'' +
", dbConfInfo='" + dbConfInfo + '\'' +
", cronInfo='" + cronInfo + '\'' +
", sourceType=" + sourceType +
", indexBuildEles=" + indexBuildEles +
", idBuildEles=" + idBuildEles +
", indexType='" + indexType + '\'' +
", categoryLevel1='" + categoryLevel1 + '\'' +
", zhName='" + zhName + '\'' +
", outputType='" + outputType + '\'' +
", providerName='" + providerName + '\'' +
", functionName='" + functionName + '\'' +
'}';
} @Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false; TaskInfo taskInfo = (TaskInfo) o; if (sourceStatus != taskInfo.sourceStatus) return false;
if (sourceType != taskInfo.sourceType) return false;
if (categoryName != null ? !categoryName.equals(taskInfo.categoryName) : taskInfo.categoryName != null)
return false;
if (sourceName != null ? !sourceName.equals(taskInfo.sourceName) : taskInfo.sourceName != null) return false;
if (providerName != null ? !providerName.equals(taskInfo.providerName) : taskInfo.providerName != null) return false;
if (pipelineConf != null ? !pipelineConf.equals(taskInfo.pipelineConf) : taskInfo.pipelineConf != null)
return false;
if (dbStoreTypes != null ? !dbStoreTypes.equals(taskInfo.dbStoreTypes) : taskInfo.dbStoreTypes != null)
return false;
if (esConfInfo != null ? !esConfInfo.equals(taskInfo.esConfInfo) : taskInfo.esConfInfo != null) return false;
if (dbConfInfo != null ? !dbConfInfo.equals(taskInfo.dbConfInfo) : taskInfo.dbConfInfo != null) return false;
if (cronInfo != null ? !cronInfo.equals(taskInfo.cronInfo) : taskInfo.cronInfo != null) return false;
if (indexBuildEles != null ? !indexBuildEles.equals(taskInfo.indexBuildEles) : taskInfo.indexBuildEles != null)
return false;
if (idBuildEles != null ? !idBuildEles.equals(taskInfo.idBuildEles) : taskInfo.idBuildEles != null)
return false;
if (indexType != null ? !indexType.equals(taskInfo.indexType) : taskInfo.indexType != null) return false;
if (categoryLevel1 != null ? !categoryLevel1.equals(taskInfo.categoryLevel1) : taskInfo.categoryLevel1 != null)
return false;
if (outputType != null ? !outputType.equals(taskInfo.outputType) : taskInfo.outputType != null)
return false;
if (functionName != null ? !functionName.equals(taskInfo.functionName) : taskInfo.functionName != null)
return false;
return zhName != null ? zhName.equals(taskInfo.zhName) : taskInfo.zhName == null; } @Override
public int hashCode() {
int result = categoryName != null ? categoryName.hashCode() : 0;
result = 31 * result + (sourceName != null ? sourceName.hashCode() : 0);
result = 31 * result + (providerName != null ? providerName.hashCode() : 0);
result = 31 * result + sourceStatus;
result = 31 * result + (pipelineConf != null ? pipelineConf.hashCode() : 0);
result = 31 * result + (dbStoreTypes != null ? dbStoreTypes.hashCode() : 0);
result = 31 * result + (esConfInfo != null ? esConfInfo.hashCode() : 0);
result = 31 * result + (dbConfInfo != null ? dbConfInfo.hashCode() : 0);
result = 31 * result + (cronInfo != null ? cronInfo.hashCode() : 0);
result = 31 * result + sourceType;
result = 31 * result + (indexBuildEles != null ? indexBuildEles.hashCode() : 0);
result = 31 * result + (idBuildEles != null ? idBuildEles.hashCode() : 0);
result = 31 * result + (indexType != null ? indexType.hashCode() : 0);
result = 31 * result + (categoryLevel1 != null ? categoryLevel1.hashCode() : 0);
result = 31 * result + (zhName != null ? zhName.hashCode() : 0);
result = 31 * result + (outputType != null ? outputType.hashCode() : 0);
result = 31 * result + (functionName != null ? functionName.hashCode() : 0);
return result;
}
}
3.3 任务的构造及初始化
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.JSONObject;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gson.Gson;
import com.quartz.consts.SourceType;
import com.quartz.consts.Sql;
import com.quartz.consts.StatusType;
import com.quartz.module.TaskInfo;
import com.quartz.util.MongoUtil;
import com.quartz.util.MySqlUtil;
import com.quartz.util.TimeUtil;
import com.mongodb.BasicDBObject;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import org.bson.types.ObjectId;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.sql.Connection;
import java.util.*; /**
* 获取调度任务的相关信息
* Created by songwang4 on 2017/6/7.
*/
public class GenerateTaskInfo { static Logger logger = LoggerFactory.getLogger(GenerateTaskInfo.class); static DBCollection sourceColl = MongoUtil.createOcpSourceDB();
static DBCollection categoryColl = MongoUtil.createOcpCategoryDB(); /**
* 从数据库中读取任务相关信息
*
* @return
*/
public static List<TaskInfo> generateTaskInfoFromMongo() {
// 将任务信息进行封装
List<TaskInfo> tasks = Lists.newArrayList();
TaskInfo task = null; DBCursor sourceCur = sourceColl.find();
DBObject sourceObj = null;
DBObject categoryObj = null;
while (sourceCur.hasNext()) {
sourceObj = sourceCur.next();
task = new TaskInfo(); String sourceName = sourceObj.get("sourceName").toString();
String categoryName = sourceObj.get("category").toString();
// 基于业务名查找对应的业务表信息
categoryObj = categoryColl.findOne(new BasicDBObject("catName", categoryName));
if (categoryObj == null) {
logger.error("no category found through source: " + sourceName);
continue;
} task.setCategoryId(categoryObj.get("_id").toString()); // 业务Id
task.setCategoryName(categoryName); // 业务名 List<String> dbStoreTypes = Lists.newArrayList();
if (categoryObj.containsField("storeType")) {
try {
JSONArray storeTypeArr = JSON.parseArray(categoryObj.get("storeType").toString());
for (int i = 0; i < storeTypeArr.size(); i++) {
dbStoreTypes.add(storeTypeArr.getString(i));
}
} catch (Exception e) {
}
}
task.setDbStoreTypes(dbStoreTypes); // 存储类型 task.setCategoryLevel1(categoryObj.get("parent").toString()); // 一级业务分类
task.setZhName(sourceObj.get("zhName").toString()); task.setDbConfInfo(categoryObj.containsField("db") ? categoryObj.get("db").toString() : categoryName); // DB配置
task.setEsConfInfo(categoryObj.containsField("es") ? categoryObj.get("es").toString() : categoryName); // ES配置 task.setIndexBuildEles(extractBuilderEles(categoryObj, "isIndex", "itemName")); // 构建ES索引信息
task.setIdBuildEles(extractBuilderEles(categoryObj, "isGK", "itemName")); // 构建id的信息元素 task.setSourceId(sourceObj.get("_id").toString()); // 信源Id
task.setSourceName(sourceName); // 信源名称 int status = StatusType.OFFLINE;
if (sourceObj.containsField("status")) {
String statusType = sourceObj.get("status").toString();
if (statusType.equals(StatusType.STR_ONLINE)) {
status = StatusType.ONLINE;
}
}
task.setSourceStatus(status); // 信源的上下线状态 int sourceType = SourceType.REAL_TIME_PROCESS;
if (sourceObj.containsField("type")) {
String strStatusType = sourceObj.get("type").toString();
if (strStatusType.equals(SourceType.STR_OFF_LINE_PROCESS)) {
sourceType = SourceType.OFF_LINE_PROCESS;
}
}
task.setSourceType(sourceType); // 离线或实时处理 task.setIndexType(sourceObj.containsField("indexType") ?
sourceObj.get("indexType").toString() : ""); // 增量或全量标识 // 定时时间配置
task.setCronInfo(sourceObj.containsField("timerInfo") ?
sourceObj.get("timerInfo").toString() : "");
if (task.getCronInfo().trim().length() == 0) {
task.setCronInfo(generateCronInfo(sourceObj));
} task.setPipelineConf(sourceObj.containsField("mappingWorkflow") ?
sourceObj.get("mappingWorkflow").toString() : ""); // pipeline配置信息 tasks.add(task);
}
sourceCur.close();
return tasks;
} /**
* 构建生成id或es的信息元素
*
* @param categoryObj
* @param queryField
* @param retureField
* @return
*/
public static List<String> extractBuilderEles(DBObject categoryObj, String queryField, String retureField) {
List<String> builerEles = Lists.newArrayList();
JSONArray dataItemArr = null;
try {
dataItemArr = JSON.parseArray(categoryObj.get("dataItems").toString());
} catch (JSONException e) {
}
if (dataItemArr != null && dataItemArr.size() > 0) {
JSONObject dataItemJson = null;
for (int i = 0; i < dataItemArr.size(); i++) {
dataItemJson = dataItemArr.getJSONObject(i);
if (dataItemJson.containsKey(queryField) && dataItemJson.getBoolean(queryField)) {
builerEles.add(dataItemJson.getString(retureField).trim());
}
}
}
return builerEles;
} /**
* 基于业务表中的信息构造定时任务表达式
*
* @param sourceObj
* @return
*/
public static String generateCronInfo(DBObject sourceObj) {
String updateTimeType = "";
String updateTimeCycle = "";
if (sourceObj.containsField("updateType")) {
updateTimeType = sourceObj.get("updateType").toString();
}
if (sourceObj.containsField("updateCycle")) {
updateTimeCycle = sourceObj.get("updateCycle").toString();
}
if (updateTimeType.trim().length() == 0 || updateTimeCycle.trim().length() == 0) {
return "";
} StringBuilder sb = new StringBuilder();
Date date = null;
if (updateTimeType.equalsIgnoreCase("YEAR")) {
date = TimeUtil.parseDate(updateTimeCycle, "MM-dd HH:mm");
if (date == null) {
try {
sb.append(TimeUtil.extractFixedTimeByDay(Integer.parseInt(updateTimeCycle), 0, 0));
} catch (NumberFormatException e) {
}
} else {
sb.append("0 ").append(TimeUtil.extractFixedTime(date, Calendar.MINUTE)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.HOUR_OF_DAY)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.DATE)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.MONTH) + 1).append(" ? *");
}
} if (updateTimeType.equalsIgnoreCase("MONTH")) {
date = TimeUtil.parseDate(updateTimeCycle, "dd HH:mm");
if (date == null) return "";
sb.append("0 ").append(TimeUtil.extractFixedTime(date, Calendar.MINUTE)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.HOUR_OF_DAY)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.DATE)).append(" * ?");
} if (updateTimeType.equalsIgnoreCase("DAY")) {
date = TimeUtil.parseDate(updateTimeCycle, "HH:mm");
if (date == null) return "";
sb.append("0 ").append(TimeUtil.extractFixedTime(date, Calendar.MINUTE)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.HOUR_OF_DAY)).append(" * * ?");
} if (updateTimeType.equalsIgnoreCase("WEEK")) {
String weekDay = "1";
if (sourceObj.containsField("weekDay")) {
weekDay = sourceObj.get("weekDay").toString();
}
date = TimeUtil.parseDate(updateTimeCycle, "HH:mm");
if (date == null) return "";
sb.append("0 ").append(TimeUtil.extractFixedTime(date, Calendar.MINUTE)).append(" ")
.append(TimeUtil.extractFixedTime(date, Calendar.HOUR_OF_DAY)).append(" ? * ")
.append(TimeUtil.extractFixedTime(weekDay));
} if (updateTimeType.equalsIgnoreCase("HOUR")) {
try {
int hour = Integer.parseInt(updateTimeCycle);
sb.append(TimeUtil.extractFixedTimeByHour(hour, 0));
} catch (NumberFormatException e) {
}
} if (updateTimeType.equalsIgnoreCase("MINUTE")) {
try {
int minute = Integer.parseInt(updateTimeCycle);
sb.append(TimeUtil.extractFixedTimeByMinute(minute));
} catch (NumberFormatException e) {
}
} if (updateTimeType.equalsIgnoreCase("SECOND")) {
sb.append("*/").append(updateTimeCycle).append(" * * * * ?");
} return sb.toString();
} /**
* 过滤下线的任务
*
* @param tasks
* @return
*/
public static List<TaskInfo> filterTask(List<TaskInfo> tasks) {
List<TaskInfo> taskInfos = Lists.newArrayList();
for (TaskInfo taskInfo : tasks) {
// 过滤下线的信源状态或实时的信源
if (taskInfo.getSourceStatus() == StatusType.OFFLINE
|| taskInfo.getSourceType() != SourceType.OFF_LINE_PROCESS) {
continue;
}
taskInfos.add(taskInfo);
}
return taskInfos;
} /**
* 基于业务名称对任务进行分组
*
* @param oriTasks
* @return
*/
public static Map<String, List<TaskInfo>> groupTaskByCategory(List<TaskInfo> oriTasks) {
Map<String, List<TaskInfo>> categoryTasks = Maps.newHashMap();
for (TaskInfo oriTask : oriTasks) {
if (!categoryTasks.containsKey(oriTask.getCategoryId())) {
List<TaskInfo> taskInfos = Lists.newArrayList();
taskInfos.add(oriTask);
categoryTasks.put(oriTask.getCategoryId(), taskInfos);
} else {
boolean hasSameSourceId = false;
for (TaskInfo taskInfo : categoryTasks.get(oriTask.getCategoryId())) {
if (taskInfo.getSourceId().equals(oriTask.getSourceId())) {
hasSameSourceId = true;
break;
}
}
if (!hasSameSourceId) {
categoryTasks.get(oriTask.getCategoryId()).add(oriTask);
}
}
}
return categoryTasks;
}
}
3.4 调用下载接口的任务
import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.JSONObject;
import com.google.common.collect.Lists;
import com.google.gson.Gson;
import com.pipes.entity.CrawlerLog;
import com.pipes.out.IDataOut;
import com.pipes.parser.PipeExecuter;
import com.quartz.consts.SourceType;
import com.quartz.consts.StatusType;
import com.quartz.consts.StoreType;
import com.quartz.module.TaskInfo;
import com.quartz.output.*;
import com.quartz.util.CrawlerLogUtil;
import org.apache.log4j.PropertyConfigurator;
import org.elasticsearch.common.Strings;
import org.quartz.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.util.List; /**
* 离线存储任务
* 注意:上一个任务如未完成,且下一次的定时任务已到执行时间,则需要等待上一个任务
* 执行完成,再进行下一个任务
*/
@DisallowConcurrentExecution
public class ScheduleJob implements Job {
static Logger logger = LoggerFactory.getLogger(ScheduleJob.class); public ScheduleJob() {
} @Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
JobDetail jobDetail = jobExecutionContext.getJobDetail(); JSONObject json = new JSONObject();
json.put("jobName", jobDetail.getKey().getName());
json.put("jobGroup", jobDetail.getKey().getGroup());
json.put("triggerName", jobExecutionContext.getTrigger().getKey().getName());
json.put("triggerGroup", jobExecutionContext.getTrigger().getKey().getGroup()); logger.info("job is running: " + json.toString()); JobDataMap dataMap = jobDetail.getJobDataMap();
JSONObject confJson = null;
try {
confJson = JSONObject.parseObject(dataMap.getString(SchedulerFactory.CONF_INFO));
} catch (JSONException e) {
}
if (confJson == null) {
logger.error("conf is empty: " + json.toString());
return;
} // 获取存储类型
TaskInfo taskInfo = new Gson().fromJson(confJson.toString(), TaskInfo.class);
if (!isNeedtoRun(taskInfo)) {
logger.info("no need to run: " + json.toString());
return;
} List<IDataOut> dataOuts = Lists.newArrayList();
for (String dbStoreType : taskInfo.getDbStoreTypes()) {
switch (dbStoreType) {
case StoreType.STR_MONGO_STORE:
dataOuts.add(new DataOut2Mongo(taskInfo.getFunctionName(), taskInfo.getSourceName(), taskInfo.getIdBuildEles(), taskInfo.getOutputType(),taskInfo.getProviderName()));
break;
case StoreType.STR_ES_STORE:
dataOuts.add(new DataOut2ES(taskInfo.getCategoryName(),taskInfo.getFunctionName(), taskInfo.getSourceName(), taskInfo.getIdBuildEles(), taskInfo.getIndexBuildEles(), taskInfo.getOutputType(),taskInfo.getProviderName()));
break;
case StoreType.STR_REDIS_STORE:
dataOuts.add(new DataOut2Redis(taskInfo.getSourceName(), taskInfo.getIdBuildEles(), taskInfo.getOutputType(),taskInfo.getProviderName()));
break;
}
} // 创建数据拉取对象,拉取前存储一次,拉取后存储一次
CrawlerLog crawlerLog = createCrawlerLog(taskInfo);
if (dataOuts.size() > 0) {
PipeExecuter.executeSave(taskInfo.getPipelineConf(), dataOuts, crawlerLog);
}
} /**
* 判断job是否需要执行
*
* @param taskInfo
* @return
*/
public static boolean isNeedtoRun(TaskInfo taskInfo) { // 实时or离线
if (taskInfo.getSourceType() == SourceType.REAL_TIME_PROCESS) {
logger.warn("the job is real-time process, no need to run");
return false;
} // job的上下线状态
if (taskInfo.getSourceStatus() == StatusType.OFFLINE) {
logger.warn("the job status is offline, no need to run");
return false;
} // pipeline的配置信息
if (Strings.isNullOrEmpty(taskInfo.getPipelineConf()) || taskInfo.getPipelineConf().trim().length() == 0) {
logger.warn("no pipeline configure info, no need to run");
return false;
} // job的存储信息
if (taskInfo.getDbStoreTypes().size() == 0) {
logger.warn("the job store type is 0, no need to store");
return false;
}
return true;
} /**
* 创建拉取数据的日志,以便管理系统查看
*
* @param taskInfo
* @return
*/
public CrawlerLog createCrawlerLog(TaskInfo taskInfo) {
CrawlerLog crawlerLog = new CrawlerLog();
crawlerLog.setIndexType(taskInfo.getIndexType()); // 增量还是全量
crawlerLog.setCategoryLv1(taskInfo.getCategoryLevel1());
String sourceName = taskInfo.getSourceName();
String sourceZhName = taskInfo.getZhName();
String sourceArr[] = sourceName.split("_");
String sourceZhArr[] = sourceZhName.split("_"); crawlerLog.setCategoryLv2((sourceArr != null && sourceArr.length > 0) ? sourceArr[0] : "");
crawlerLog.setFunctionName((sourceArr != null && sourceArr.length > 1) ? sourceArr[1] : "");
crawlerLog.setProviderName((sourceArr != null && sourceArr.length > 2) ? sourceArr[2] : ""); crawlerLog.setFunctionZhName((sourceZhArr != null && sourceZhArr.length > 1) ? sourceZhArr[1] : "");
crawlerLog.setProviderZhName((sourceZhArr != null && sourceZhArr.length > 2) ? sourceZhArr[2] : "");
crawlerLog.setId();
return crawlerLog;
}
}
3.5 任务调度工厂
工厂用于生成任务的触发器Trigger,以及创建任务Job。
import com.google.gson.Gson;
import com.quartz.consts.PrefixType;
import com.quartz.module.TaskInfo;
import org.quartz.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; public class SchedulerFactory {
static Logger logger = LoggerFactory.getLogger(SchedulerFactory.class); public static final String CONF_INFO = "conf_info";
public static final String DYNAMIC_UPDATE_JOB_NAME = "dynamicUpdateJob";
public static final String DYNAMIC_UPDATE_GROUP_NAME = "dynamicUpdateGroup";
public static final String DYNAMIC_UPDATE_CRONTINFO = "*/30 * * * * ?"; /**
* 将任务加入任务调度中
* @param taskInfo
* @param scheduler
*/
public static void addJob2Scheduler(TaskInfo taskInfo, Scheduler scheduler) {
try {
JobDetail jobDetail = generateJobDetail(taskInfo);
if(jobDetail == null){
logger.error("create job failed!");
return;
} Trigger triger = generateTrigger(taskInfo);
if(triger == null){
logger.error("create trigger failed!");
return;
} // 加载执行Job及定时器
scheduler.scheduleJob(jobDetail,triger);
} catch (SchedulerException e) {
logger.error("create scheduler error, error message: "+e.toString());
}
} public static void addDynamicUpdateJob2Scheduler(Scheduler scheduler) {
try {
JobDetail jobDetail = generateDynamicUpdateJobDetail(DYNAMIC_UPDATE_JOB_NAME, DYNAMIC_UPDATE_GROUP_NAME);
if(jobDetail == null){
logger.error("create job failed!");
return;
} Trigger triger = generateTrigger(DYNAMIC_UPDATE_JOB_NAME, DYNAMIC_UPDATE_GROUP_NAME, DYNAMIC_UPDATE_CRONTINFO);
if(triger == null){
logger.error("create trigger failed!");
return;
} // 加载执行Job及定时器
scheduler.scheduleJob(jobDetail,triger);
} catch (SchedulerException e) {
logger.error("create scheduler error, error message: "+e.toString());
}
} /**
* 于信源信息生成对应的job
* @param taskInfo
* @return
*/
public static JobDetail generateJobDetail(TaskInfo taskInfo) {
String jobName = taskInfo.getSourceName();
if(jobName.trim().length() == 0){
logger.error("job name is empty, please check!");
return null;
} String jobGroup = taskInfo.getCategoryName();
if(jobGroup.trim().length() == 0){
logger.error("job group is empty, please check!");
return null;
} return JobBuilder.newJob(ScheduleJob.class)
.withIdentity(PrefixType.JOB_PREFIX+jobName, PrefixType.JOB_PREFIX+jobGroup)
.requestRecovery()
.usingJobData(CONF_INFO, new Gson().toJson(taskInfo)).build();
} public static JobDetail generateDynamicUpdateJobDetail(String jobName, String jobGroup) {
if(jobName.trim().length() == 0){
logger.error("job name is empty, please check!");
return null;
} if(jobGroup.trim().length() == 0){
logger.error("job group is empty, please check!");
return null;
} return JobBuilder.newJob(DynamicUpdateJob.class)
.withIdentity(PrefixType.JOB_PREFIX+jobName, PrefixType.JOB_PREFIX+jobGroup)
.requestRecovery()
.build();
} /**
* 基于信源信息生成对应的trigger
* @param taskInfo
* @return
*/
public static Trigger generateTrigger(TaskInfo taskInfo) {
String sourceTriggerName = taskInfo.getSourceName();
if(sourceTriggerName.trim().length() == 0){
logger.error("trigger name is empty, please check!");
return null;
}
String sourceTriggerGroup = taskInfo.getCategoryName();
if(sourceTriggerGroup.trim().length() == 0){
logger.error("trigger group is empty, please check!");
return null;
}
String cronInfo = taskInfo.getCronInfo();
if(cronInfo.trim().length() == 0){
logger.error("cron timer info is empty, please check!");
return null;
}
return TriggerBuilder.newTrigger().withIdentity(PrefixType.TRIGGER_PREFIX+sourceTriggerName,
PrefixType.TRIGGER_PREFIX+sourceTriggerGroup)
.withSchedule(CronScheduleBuilder.cronSchedule(cronInfo))
.build();
} public static Trigger generateTrigger(String sourceTriggerName, String sourceTriggerGroup, String cronInfo) {
if(sourceTriggerName.trim().length() == 0){
logger.error("trigger name is empty, please check!");
return null;
}
if(sourceTriggerGroup.trim().length() == 0){
logger.error("trigger group is empty, please check!");
return null;
}
if(cronInfo.trim().length() == 0){
logger.error("cron timer info is empty, please check!");
return null;
}
return TriggerBuilder.newTrigger().withIdentity(PrefixType.TRIGGER_PREFIX+sourceTriggerName,
PrefixType.TRIGGER_PREFIX+sourceTriggerGroup)
.withSchedule(CronScheduleBuilder.cronSchedule(cronInfo))
.build();
}
}
3.6 动态检测任务更新的Job
import com.alibaba.fastjson.JSONObject;
import com.google.common.collect.Lists;
import com.google.gson.Gson;
import com.quartz.consts.PrefixType;
import com.quartz.module.TaskInfo;
import org.quartz.*;
import org.quartz.impl.matchers.GroupMatcher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.util.List; @DisallowConcurrentExecution
public class DynamicUpdateJob implements Job{ private static Logger logger = LoggerFactory.getLogger(DynamicUpdateJob.class); public DynamicUpdateJob(){} @Override
public void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {
JobDetail jobDetail = jobExecutionContext.getJobDetail(); JSONObject json = new JSONObject();
json.put("jobName", jobDetail.getKey().getName());
json.put("jobGroup", jobDetail.getKey().getGroup());
json.put("triggerName", jobExecutionContext.getTrigger().getKey().getName());
json.put("triggerGroup", jobExecutionContext.getTrigger().getKey().getGroup()); logger.info("job is running: "+json.toString()); // 获取当前的调度器
Scheduler scheduler = jobExecutionContext.getScheduler(); // 获取配置信息中的任务(注意需要保持)
List<TaskInfo> confTaskInfos = GenerateTaskInfo.generateTaskInfoFromMysql(); // 获取所有的job信息
List<JobKey> schedulerJobKeys = acquireJobKeysWithinSceduler(scheduler); // 1. 配置任务不存在,而sheduler相关任务存在,则进行下线处理
for(JobKey schedulerJobKey : schedulerJobKeys ){
boolean hasSameJobKeyInConfTask = false;
for(TaskInfo confTaskInfo : confTaskInfos){
if(generateJobKey(confTaskInfo).equals(schedulerJobKey)){
hasSameJobKeyInConfTask = true;
break;
}
}
if(!hasSameJobKeyInConfTask){
try {
scheduler.deleteJob(schedulerJobKey);
logger.info("delete offline job: "+schedulerJobKey.toString());
} catch (SchedulerException e) {
logger.error("delete offline job error: "+json.toString());
}
}
} // 2 配置任务与调度器任务比较
for(TaskInfo confTaskInfo : confTaskInfos){
JobKey confJobKey = generateJobKey(confTaskInfo); boolean hasSameJob = false;
for(JobKey schedulerJobKey : schedulerJobKeys ){
if(confJobKey.equals(schedulerJobKey)){
hasSameJob = true;
break;
}
} if(hasSameJob){ //具有相同名称的job
logger.info("has same jobKey: "+confJobKey);
JobDetail schedulerJobDetail = null;
try {
schedulerJobDetail = scheduler.getJobDetail(confJobKey);
} catch (SchedulerException e) {
logger.error("get job detail from scheduler error: "+confJobKey);
}
if(schedulerJobDetail == null) continue; // 1) 是否需要下线
if(!ScheduleJob.isNeedtoRun(confTaskInfo)){
try {
logger.info("has same jobKey and offline the job "+confJobKey);
scheduler.deleteJob(confJobKey);
} catch (SchedulerException e) {
logger.error("delete offline job error: "+confJobKey);
}
}else{
// 2) 是否需要更新任务
TaskInfo schedulerTaskInfo = parseTaskInfoFromJobDataMap(schedulerJobDetail);
logger.info("confTaskInfo: " + confTaskInfo);
logger.info("schedulerTaskInfo: " + schedulerTaskInfo);
if(!confTaskInfo.equals(schedulerTaskInfo)){
try {
logger.info("has same jobKey and update the job "+confJobKey);
scheduler.deleteJob(confJobKey);
SchedulerFactory.addJob2Scheduler(confTaskInfo, scheduler);
} catch (SchedulerException e) {
logger.error("update scheduler info error: "+confJobKey);
}
}else{
logger.info("the job info is same "+confJobKey);
}
}
}else{ // 创建新的Job
// 1) 是否满足上线的条件
if(!ScheduleJob.isNeedtoRun(confTaskInfo)){
logger.info("the status is offline, no need to create new job: "+confJobKey);
continue;
} logger.info("no same jobKey and create job "+confJobKey); // 2) 上线
SchedulerFactory.addJob2Scheduler(confTaskInfo, scheduler);
}
}
} protected List<JobKey> acquireJobKeysWithinSceduler(Scheduler scheduler){
List<JobKey> jobKeys = Lists.newArrayList();
try {
for(String groupName : scheduler.getJobGroupNames()){
if(groupName.equals(PrefixType.JOB_PREFIX+SchedulerFactory.DYNAMIC_UPDATE_GROUP_NAME)){
continue;
}
for(JobKey jobKey : scheduler.getJobKeys(GroupMatcher.jobGroupEquals(groupName))){
jobKeys.add(jobKey);
}
}
} catch (SchedulerException e) {
}
return jobKeys;
} protected TaskInfo parseTaskInfoFromJobDataMap(JobDetail jobDetail){
try {
String confInfo = jobDetail.getJobDataMap().getString(SchedulerFactory.CONF_INFO);
return new Gson().fromJson(confInfo, TaskInfo.class);
} catch (Exception e) {
logger.error("parse task info from JobDataMap error!");
return null;
}
} protected JobKey generateJobKey(TaskInfo taskInfo){
return generateJobKey(taskInfo.getSourceName(), taskInfo.getCategoryName());
} protected JobKey generateJobKey(String jobName, String jobGroup){
return JobKey.jobKey(PrefixType.JOB_PREFIX+jobName,PrefixType.JOB_PREFIX+jobGroup);
}
}
3.7 Es数据库存储
import com.alibaba.fastjson.JSONObject;
import com.pipes.out.IDataOut;
import com.quartz.conf.Configuration;
import com.quartz.conf.OcpConfHelper;
import com.quartz.util.IdBuilder;
import com.quartz.util.OutputTypeTransform;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsRequest;
import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsResponse;
import org.elasticsearch.action.bulk.BulkRequestBuilder;
import org.elasticsearch.action.bulk.BulkResponse;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.InetSocketTransportAddress;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.reindex.DeleteByQueryAction;
import org.elasticsearch.rest.RestStatus;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.List;
import java.util.Map; /**
* Created by songwang4 on 2017/6/7.
*/
public class DataOut2ES implements IDataOut, IDataClose { static Logger logger = LoggerFactory.getLogger(DataOut2ES.class); static TransportClient client; String indexName; // 默认为ocp String typeName;
String sourceName; List<String> indexBuildEles;
List<String> idBuilderEles; Map<String,String> outputType; String providerName; public DataOut2ES(String indexName,String type){
this.indexName = indexName;
this.typeName = type;
init();
} public DataOut2ES(String indexName,String type, List<String> indexBuildEles){
this(indexName,type);
this.indexBuildEles = indexBuildEles;
} public DataOut2ES(String indexName,String type, List<String> idBuilderEles, List<String> indexBuildEles){
this(indexName,type, indexBuildEles);
this.idBuilderEles = idBuilderEles;
} public DataOut2ES(String indexName,String type, String sourceName, List<String> idBuilderEles, List<String> indexBuildEles){
this(indexName,type, idBuilderEles, indexBuildEles);
this.sourceName = sourceName;
} public DataOut2ES(String indexName,String type, String sourceName, List<String> idBuilderEles, List<String> indexBuildEles, Map<String,String> outputType,String providerName){
this(indexName,type,sourceName, idBuilderEles, indexBuildEles);
this.outputType = outputType;
this.providerName = providerName;
} public static void init() {
if(client == null){
Configuration conf = OcpConfHelper.getInstance().getOcpConf(); String esClusterName = conf.getStringValue("ocp_es_cluster_name", "");
String esIp = conf.getStringValue("ocp_es_ip", "");
int esPort = conf.getIntValue("ocp_es_port", ""); Settings settings = Settings.builder()
.put("cluster.name",esClusterName)
.put("client.transport.sniff", true)
.put("client.transport.ping_timeout", "120s")
.put("client.transport.nodes_sampler_interval","30s").build();
try {
client = new PreBuiltTransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(esIp),esPort));
} catch (UnknownHostException e) {
e.printStackTrace();
}
}
} /**
* 批量写入
* @param datas
*/
public void save(List<JSONObject> datas) {
// 批量的插入数据
BulkRequestBuilder bulkRequest = client.prepareBulk();
for(JSONObject data : datas){ //按输出字段类型进行转换
// data = OutputTypeTransform.transform(data,outputType); String id64 = IdBuilder.generateId(this.sourceName, data, this.idBuilderEles);
if(id64.trim().length() == 0) continue; JSONObject indexJson = new JSONObject();
for(String indexBuildEle : this.indexBuildEles){
if(data.containsKey(indexBuildEle)){
indexJson.put(indexBuildEle, data.get(indexBuildEle));
}
}
if(indexJson.keySet().isEmpty()){
logger.info("no json fields, so no need to save");
return;
} bulkRequest.add(client.prepareIndex(indexName, typeName, id64).setSource(indexJson.toString()));
}
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
if(bulkResponse.hasFailures()){
logger.error("insert data 2 es error "+indexName);
System.out.println(bulkResponse.buildFailureMessage());
}
} public void saveWithoutIndexBuilds(List<JSONObject> datas) {
// 批量的插入数据
BulkRequestBuilder bulkRequest = client.prepareBulk();
for(JSONObject data : datas){
bulkRequest.add(client.prepareIndex(indexName, typeName).setSource(data.toString()));
}
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
if(bulkResponse.hasFailures()){
logger.error("insert data 2 es error "+indexName);
System.out.println(bulkResponse.buildFailureMessage());
}
} public void saveWithoutIndexBuilds2(List<JSONObject> datas) {
// 批量的插入数据
BulkRequestBuilder bulkRequest = client.prepareBulk();
for(JSONObject data : datas){
String _id = data.getString("_id");
JSONObject source = data.getJSONObject("_source");
bulkRequest.add(client.prepareIndex(indexName, typeName,_id).setSource(source.toString()));
}
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
if(bulkResponse.hasFailures()){
logger.error("insert data 2 es error "+indexName);
System.out.println(bulkResponse.buildFailureMessage());
}
} /**
* 判断索引是否存在
* @param indexName
* @return
*/
public boolean isExistsIndex(String indexName){
IndicesExistsResponse response = client.admin().indices()
.exists(new IndicesExistsRequest().indices(new String[]{indexName})).actionGet();
return response.isExists();
} /**
* 创建索引信息
* @param indexName
* @return
*/
public boolean createIndex(String indexName){
try {
CreateIndexResponse indexResponse = this.client
.admin()
.indices()
.prepareCreate(indexName)
.get();
return indexResponse.isAcknowledged();
} catch (ElasticsearchException e) {
e.printStackTrace();
}
return false;
} @Override
public void save(Object data) {
if(this.indexBuildEles.size() == 0){
logger.error("index fields are empty in es, no index need to save, info: " + data.toString());
return;
} // 逐条插入数据
JSONObject json = null;
try {
json = (JSONObject)data;
} catch (Exception e) {
logger.error("trans data to json error in es :" + data.toString());
return;
}
if(json == null){
logger.error("trans data to Json error in es, info " + data.toString());
return;
} // json = OutputTypeTransform.transform(json,outputType); // 构建索引id
String id64 = IdBuilder.generateId(this.sourceName, json, this.idBuilderEles);
if(id64.trim().length() == 0){
logger.error("generate 64 bit id is null,please check: " + data.toString());
return;
} JSONObject indexJson = new JSONObject();
for(String indexBuildEle : this.indexBuildEles){
if(json.containsKey(indexBuildEle)){
indexJson.put(indexBuildEle, json.get(indexBuildEle));
}
} if(indexJson.keySet().isEmpty()){
logger.info("no json fields, so no need to save");
return;
} logger.info("index info: "+indexJson); IndexResponse response = client.prepareIndex(this.indexName, this.typeName, id64).setSource(indexJson.toString()).get();
if(response.status() != RestStatus.CREATED && response.status() != RestStatus.OK){
logger.error("index error in es, status is "+response.status().getStatus()+"info: " + data.toString());
return;
}
} @Override
public void close() {
}
}
以上代码均为与Quartz相关的整体流程,虽然各个细节方面的代码,如配置类,数据库初始化类或加载类、以及部分帮助类没有展示,但对于Quartz的核心使用,已略窥一二。如有问题,可留言回复。
4. 集群模式
注意:上述默认使用Quartz集群模式,从主流程加载的quartz.properties中配置的集群模式如下,可进行参考。
#============================================================================
# Configure Main Scheduler Properties
#============================================================================ org.quartz.scheduler.instanceName: OcpScheduler
org.quartz.scheduler.instanceId: OcpInstance org.quartz.scheduler.skipUpdateCheck: true #============================================================================
# Configure ThreadPool
#============================================================================
org.quartz.threadPool.class: org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount: 50
org.quartz.threadPool.threadPriority: 5
org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread: true #============================================================================
# Configure JobStore
#============================================================================
org.quartz.jobStore.misfireThreshold: 120000 org.quartz.jobStore.class: org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass: org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.useProperties: false
org.quartz.jobStore.tablePrefix: QRTZ_
org.quartz.jobStore.dataSource: ocpQzDs
org.quartz.jobStore.isClustered: true
org.quartz.jobStore.clusterCheckinInterval = 60000 #============================================================================
# Configure Datasources
#============================================================================
org.quartz.dataSource.ocpQzDs.driver: com.mysql.jdbc.Driver
org.quartz.dataSource.ocpQzDs.URL:jdbc:mysql://192.168.1.1:3306/test?useUnicode=true&characterEncoding=utf-8
org.quartz.dataSource.ocpQzDs.user: test
org.quartz.dataSource.ocpQzDs.password: test
org.quartz.dataSource.ocpQzDs.maxConnection: 30 #============================================================================
# Configure Plugins
#============================================================================
org.quartz.plugin.shutdownHook.class: org.quartz.plugins.management.ShutdownHookPlugin
org.quartz.plugin.shutdownHook.cleanShutdown: true #org.quartz.plugin.triggHistory.class: org.quartz.plugins.history.LoggingJobHistoryPlugin
Quartz使用(6) - Quartz项目实战的更多相关文章
- Net作业调度(一) -Quartz.Net入门 Quartz表达式生成器 [转]
背景 很多时候,项目需要在不同个时刻,执行一个或很多个不同的作业. Windows执行计划这时并不能很好的满足需求了. 这时候需要一个更为强大,方便管理,集部署的作业调度了. 介绍 Quartz一个开 ...
- Java 18套JAVA企业级大型项目实战分布式架构高并发高可用微服务电商项目实战架构
Java 开发环境:idea https://www.jianshu.com/p/7a824fea1ce7 从无到有构建大型电商微服务架构三个阶段SpringBoot+SpringCloud+Solr ...
- 【Quartz.NET】Quartz.NET 入门
概述 Quartz.NET是一个开源的作业调度框架,非常适合在平时的工作中,定时轮询数据库同步,定时邮件通知,定时处理数据等. Quartz.NET允许开发人员根据时间间隔(或天)来调度作业.它实现了 ...
- quartz (一) 基于 Quartz 开发企业级任务调度应用
本文转自:http://www.ibm.com/developerworks/cn/opensource/os-cn-quartz/ Quartz 基本概念及原理 Quartz Scheduler 开 ...
- Quartz使用(5) - Quartz的Job存储及集群部署
1. Job的存储与持久化 Quartz的JobStore接口定义了作业Job.触发器trigger.调度器Scheduler等数据存储机制.Quartz主要有两种Job存储类型:内存存储RAMJob ...
- Asp.Net Core 项目实战之权限管理系统(4) 依赖注入、仓储、服务的多项目分层实现
0 Asp.Net Core 项目实战之权限管理系统(0) 无中生有 1 Asp.Net Core 项目实战之权限管理系统(1) 使用AdminLTE搭建前端 2 Asp.Net Core 项目实战之 ...
- 给缺少Python项目实战经验的人
我们在学习过程中最容易犯的一个错误就是:看的多动手的少,特别是对于一些项目的开发学习就更少了! 没有一个完整的项目开发过程,是不会对整个开发流程以及理论知识有牢固的认知的,对于怎样将所学的理论知识应用 ...
- 【腾讯Bugly干货分享】React Native项目实战总结
本文来自于腾讯bugly开发者社区,非经作者同意,请勿转载,原文地址:http://dev.qq.com/topic/577e16a7640ad7b4682c64a7 “8小时内拼工作,8小时外拼成长 ...
- Asp.Net Core 项目实战之权限管理系统(0) 无中生有
0 Asp.Net Core 项目实战之权限管理系统(0) 无中生有 1 Asp.Net Core 项目实战之权限管理系统(1) 使用AdminLTE搭建前端 2 Asp.Net Core 项目实战之 ...
随机推荐
- 读懂sql_trace
TKPROF: Release 11.2.0.1.0 - Development on 星期一 11月 3 21:39:41 2014 Copyright (c) 1982, 2009, Oracle ...
- ThreadLocalRandom原理
原文链接:https://www.jianshu.com/p/9c2198586f9b 2.2. 并发包中ThreadLocalRandom类原理剖析 ThreadLocalRandom类是JDK7在 ...
- P3943 星空 区间异或差分
\(\color{#0066ff}{ 题目描述 }\) 逃不掉的那一天还是来了,小 F 看着夜空发呆. 天上空荡荡的,没有一颗星星--大概是因为天上吹不散的乌云吧. 心里吹不散的乌云,就让它在那里吧, ...
- javascript事件委托//就是父级事件给子级
<!DOCTYPE html><html><head> <title></title> <style type="text/ ...
- 在SQLSERVER中创建聚集索引
CREATE CLUSTERED INDEX CLUSTER_id ON TABLE_name(ID)------批量
- Java技术列表
完整的java技术列表,可以在oracle官网找到: https://www.oracle.com/technetwork/java/javaee/tech/index.html JSR: Java ...
- Functions that return a function
javascript学习中,经常会遇到闭包的问题,然后闭包的很多例子中又会遇到很多返回函数的闭包的例子程序.因为对闭包的理解还不够透彻,然后对于Functions rerurn a function产 ...
- MPI环境配置
单机多核配置:https://www.cnblogs.com/shixiangwan/p/6626156.html 多计算机配置:https://blog.csdn.net/WASEFADG/arti ...
- C# DateTime.Compare时间大小对比
- OpenCV属性页配置问题~
详细的OpenCV属性页的安装流程,参考这个网站:http://m.bubuko.com/infodetail-793518.html 运行例子时候,如果遇到这个问题,可能配置环境时候出现问题了. 此 ...