建设银行企业版网站论坛外链代发
前段时间公司项目用到了 定时任务 所以写了一篇定时任务的文章 ，浏览量还不错 ，
- Springboot 整合定时任务 )
所以就准备写第二篇， 如果你是一名Java工程师，你也可以会看到如下的页面 ，去添加定时任务
定时任务展示 :
很显然他们只是披着不同的皮而已，本质上都是定时任务 , 也就是将所有的任务数据 交给了 Spring 进行管理 ，最后 将 任务Job信息 ，以及 参数传递的信息 对外进行暴露 cron 的输入值 ，然后交给数据库去进行 传参 这里我们来演示下 上面做到流程
环境搭建
- 我们需要配置一个任务
这玩意 简单说 就是你要做什么事情 ，然后你要做这件事，你需要 用到定时任务， 所有 你就得 去实现人家第三方的库 ，这里我们用 quartz , 当然类似的还有很多很多,只是为了方便演示
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-quartz</artifactId></dependency>
在第一次使用之前首先我们需要生成一下quartz 自带默认的表 ，大概会生成11 张的样子
-
把yaml配置文件中的 initialize-schema: always 配置的 always 属性意思是:
-
每次初始化都会重新生成表(执行一次删除，执行一次创建)，生成后，可以修改为 never
-
修改下列初始化结构的 yaml 属性 :
initialize-schema:- always : 重复生成 ，你每次 都会重新生成
- never: 不生成
所以你第一次可以用 always ，后面你就改成 never 就行了
spring:## quartz定时任务,采用数据库方式quartz:job-store-type: jdbcinitialize-schema: embedded#定时任务启动开关，true-开 false-关auto-startup: true#延迟1秒启动定时任务startup-delay: 1s#启动时更新己存在的Joboverwrite-existing-jobs: trueproperties:org:quartz:scheduler:instanceName: MySchedulerinstanceId: AUTOjobStore:class: org.springframework.scheduling.quartz.LocalDataSourceJobStoredriverDelegateClass: org.quartz.impl.jdbcjobstore.StdJDBCDelegatetablePrefix: QRTZ_isClustered: falsemisfireThreshold: 12000clusterCheckinInterval: 15000threadPool:class: org.quartz.simpl.SimpleThreadPoolthreadCount: 1threadPriority: 5threadsInheritContextClassLoaderOfInitializingThread: true
如果你不想自己去生成也可以去执行这个包下面的sql
我们在创建一张业务的表，方便待会弄增删改查
创建SQL
CREATE TABLE `sys_quartz_job` (`id` varchar(32) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL,`create_by` varchar(32) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL COMMENT '创建人',`create_at` datetime DEFAULT NULL COMMENT '创建时间',`del_flag` int DEFAULT NULL COMMENT '删除状态',`update_by` varchar(32) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL COMMENT '修改人',`update_at` datetime DEFAULT NULL COMMENT '修改时间',`job_class_name` varchar(255) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL COMMENT '任务类名',`cron_expression` varchar(255) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL COMMENT 'cron表达式',`parameter` varchar(255) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL COMMENT '参数',`meeting_record_id` int DEFAULT NULL COMMENT '会议室记录id',`description` varchar(255) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci DEFAULT NULL COMMENT '描述',`status` int DEFAULT NULL COMMENT '状态 0正常 -1停止',PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 ROW_FORMAT=DYNAMIC;加上这张表，我们就有了12 张表， 其他都是 框架自带的，一张我们自己生成的
编写MVC 代码
首先写一个类 ，你继承了人家quartz 的Job就可以用人家的功能，就这么简单，然后你已经有了一个任务了
import org.quartz.Job;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
@Component
public class QuartzDemoJob implements Job {static int i = 0;@Autowiredprivate QuartzDemoService quartzDemoService;public QuartzDemoJob() {}@Autowired //这里不能直接注入，因为@Autowired注入是Spring的注入，要求注入对象与被注入对象都是在SpringIOC容器中存在，public QuartzDemoJob(QuartzDemoService quartzDemoService) {this.quartzDemoService = quartzDemoService;}@Transactional@Overridepublic void execute(JobExecutionContext jobExecutionContext) throws JobExecutionException {// 编写 service 逻辑}public static String dateToStr(java.util.Date date, String strFormat) {SimpleDateFormat sf = new SimpleDateFormat(strFormat);return sf.format(date);}public static Date strToSqlDate(String strDate, String dateFormat) {SimpleDateFormat sf = new SimpleDateFormat(dateFormat);Date date = null;try {date = sf.parse(strDate);} catch (ParseException e) {e.printStackTrace();}return new Date(date != null ? date.getTime() : 0);}
}
你有了这个任务之后 ，你现在需要 交给Spring 进行管理 ，所以你需要搞个配置 ，这你看了我上篇文章 就明白了 吧
首先我们简单点 ，Job就是任务 说人话就是你要做的事 ，你把你要做的事写了个类，然后给Spring 进行管理 配置一下， 所以我们现在把 Job弄到配置类里面去
@Beanpublic JobDetailFactoryBean jobDetailFactoryBean(){JobDetailFactoryBean factoryBean=new JobDetailFactoryBean();//关联我们自己的Job类factoryBean.setJobClass(QuartzDemoJob.class); //QuartzDemoJob的实例化并没有经过Spring的处理，// Spring的注入是要求注入的对象和被注入的对象都要在Spring的IOC容器中return factoryBean;}
完整 代码 :
@Configuration
public class QuartzCoreConfig {/*** 1、创建Job对象*/@Beanpublic JobDetailFactoryBean jobDetailFactoryBean(){JobDetailFactoryBean factoryBean=new JobDetailFactoryBean();//关联我们自己的Job类factoryBean.setJobClass(QuartzDemoJob.class); //QuartzDemoJob的实例化并没有经过Spring的处理，// Spring的注入是要求注入的对象和被注入的对象都要在Spring的IOC容器中return factoryBean;}/*** 2、创建Trigger对象* Cron Trigger*/@Beanpublic CronTriggerFactoryBean cronTriggerFactoryBean(JobDetailFactoryBean jobDetailFactoryBean){CronTriggerFactoryBean factoryBean=new CronTriggerFactoryBean();//关联JobDetail对象factoryBean.setJobDetail(Objects.requireNonNull(jobDetailFactoryBean.getObject()));//设置触发时间factoryBean.setCronExpression("0/2 * * * * ?"); //每2秒触发一次， 分钟，小时，天，月，星期
// factoryBean.setCronExpression("0 0-59 0-22 * * ?"); //在每天0-22点期间的每1分钟触发return factoryBean;}/*** 3、创建Scheduler*/@Beanpublic SchedulerFactoryBean schedulerFactoryBean(CronTriggerFactoryBean cronTriggerFactoryBean, MyadaptableJobFactory myadaptableJobFactory){SchedulerFactoryBean factoryBean=new SchedulerFactoryBean();//关联triggerfactoryBean.setTriggers(cronTriggerFactoryBean.getObject());factoryBean.setJobFactory(myadaptableJobFactory); //调用myadaptableJobFactory把对象注入到SpringIOC容器中return factoryBean;}
}
上面的流程图大概说下关联
SchedulerFactoryBean : 就是调度器的意思
CronTriggerFactoryBean : 就是 触发器的意思
JobDetailFactoryBean : 定时任务
在自己搞个工厂 将 quartz 手动创建一个实例
/*** 2. 编写工厂模式 加载进Spring*/
@Component("myadaptableJobFactory") //将该类实例化，使得可以直接用
public class MyadaptableJobFactory extends AdaptableJobFactory {//AutowireCapableBeanFactory可以将一个对象添加到Spring IOC容器中，并且完成该对象注入@Autowiredprivate AutowireCapableBeanFactory autowireCapableBeanFactory;//该方法将实例化的任务对象手动的添加到SpringIOC容器中并且完成对象的注入@Overrideprotected Object createJobInstance(TriggerFiredBundle bundle) throws Exception {Object object = super.createJobInstance(bundle);//将object对象添加到Spring IOC容器中并完成注入this.autowireCapableBeanFactory.autowireBean(object);return object;}
}上面我们做了三部
- 配置一个任务
- 将任务加载进行了Spring
- 创建了个工厂，自己注入
接下来完成三层 架构 MVC，搞个Controller ，只是提供思路，自己把他写完哈
@RestController
@RequestMapping("/sys/quartzJob")
@Slf4j
@Api(tags = "定时任务接口")
public class QuartzJobController {@Autowiredprivate IQuartzJobService quartzJobService;@Autowiredprivate Scheduler scheduler;/*** 分页列表查询** @param quartzJob* @param pageNo* @param pageSize* @param req* @return*/@RequestMapping(value = "/list", method = RequestMethod.GET)public Result<?> queryPageList(QuartzJob quartzJob, @RequestParam(name = "pageNo", defaultValue = "1") Integer pageNo,@RequestParam(name = "pageSize", defaultValue = "10") Integer pageSize, HttpServletRequest req) {QueryWrapper<QuartzJob> queryWrapper = new QueryWrapper<>();queryWrapper.select("");Page<QuartzJob> page = new Page<QuartzJob>(pageNo, pageSize);IPage<QuartzJob> pageList = quartzJobService.page(page, queryWrapper);return Result.ok(pageList);}/*** 添加定时任务** @param quartzJob* @return*///@RequiresRoles("admin")@RequestMapping(value = "/add", method = RequestMethod.POST)public Result<?> add(@RequestBody QuartzJob quartzJob) {quartzJobService.saveAndScheduleJob(quartzJob);return Result.ok("创建定时任务成功");}/*** 更新定时任务** @param quartzJob* @return*///@RequiresRoles("admin")@RequestMapping(value = "/edit", method = {RequestMethod.PUT, RequestMethod.POST})public Result<?> eidt(@RequestBody QuartzJob quartzJob) {try {quartzJobService.editAndScheduleJob(quartzJob);} catch (SchedulerException e) {log.error(e.getMessage(), e);return Result.error("更新定时任务失败!");}return Result.ok("更新定时任务成功!");}/*** 通过id删除** @param id* @return*///@RequiresRoles("admin")@RequestMapping(value = "/delete", method = RequestMethod.DELETE)public Result<?> delete(@RequestParam(name = "id", required = true) String id) {QuartzJob quartzJob = quartzJobService.getById(id);if (quartzJob == null) {return Result.error("未找到对应实体");}quartzJobService.deleteAndStopJob(id);return Result.ok("删除成功!");}/*** 批量删除** @param ids* @return*///@RequiresRoles("admin")@RequestMapping(value = "/deleteBatch", method = RequestMethod.DELETE)public Result<?> deleteBatch(@RequestParam(name = "ids", required = true) String ids) {if (ids == null || "".equals(ids.trim())) {return Result.error("参数不识别！");}for (String id : Arrays.asList(ids.split(""))) {QuartzJob job = quartzJobService.getById(id);quartzJobService.deleteAndStopJob(id);}return Result.ok("删除定时任务成功!");}/*** 暂停定时任务** @param id* @return*///@RequiresRoles("admin")@GetMapping(value = "/pause")@ApiOperation(value = "停止定时任务")public Result<Object> pauseJob(@RequestParam(name = "id") String id) {QuartzJob job = quartzJobService.getById(id);if (job == null) {return Result.error("定时任务不存在！");}quartzJobService.pause(job);return Result.ok("停止定时任务成功");}/*** 启动定时任务** @param id* @return*///@RequiresRoles("admin")@GetMapping(value = "/resume")@ApiOperation(value = "启动定时任务")public Result<Object> resumeJob(@RequestParam(name = "id") String id) {QuartzJob job = quartzJobService.getById(id);if (job == null) {return Result.error("定时任务不存在！");}quartzJobService.resumeJob(job);//scheduler.resumeJob(JobKey.jobKey(job.getJobClassName().trim()));return Result.ok("启动定时任务成功");}/*** 通过id查询** @param id* @return*/@RequestMapping(value = "/queryById", method = RequestMethod.GET)public Result<?> queryById(@RequestParam(name = "id", required = true) String id) {QuartzJob quartzJob = quartzJobService.getById(id);return Result.ok(quartzJob);}/*** 导出excel** @param request* @param quartzJob*/@RequestMapping(value = "/exportXls")public ModelAndView exportXls(HttpServletRequest request, QuartzJob quartzJob) {// Step.1 组装查询条件
// QueryWrapper<QuartzJob> queryWrapper = QueryGenerator.initQueryWrapper(quartzJob, request.getParameterMap());
// // Step.2 AutoPoi 导出Excel
// ModelAndView mv = new ModelAndView(new JeecgEntityExcelView());
// List<QuartzJob> pageList = quartzJobService.list(queryWrapper);
// // 导出文件名称
// mv.addObject(NormalExcelConstants.FILE_NAME, "定时任务列表");
// mv.addObject(NormalExcelConstants.CLASS, QuartzJob.class);
// //获取当前登录用户
// //update-begin---author:wangshuai ---date:20211227 for：[JTC-116]导出人写死了------------
// LoginUser user = (LoginUser) SecurityUtils.getSubject().getPrincipal();
// mv.addObject(NormalExcelConstants.PARAMS, new ExportParams("定时任务列表数据", "导出人:" + user.getRealname(), "导出信息"));
// //update-end---author:wangshuai ---date:20211227 for：[JTC-116]导出人写死了------------
// mv.addObject(NormalExcelConstants.DATA_LIST, pageList);return null;}/*** 通过excel导入数据** @param request* @param response* @return*/@RequestMapping(value = "/importExcel", method = RequestMethod.POST)public Result<?> importExcel(HttpServletRequest request, HttpServletResponse response) throws IOException {MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
// 错误信息
List<String> errorMessage = new ArrayList<>();
int successLines = 0, errorLines = 0;
for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) {
// 获取上传文件对象
MultipartFile file = entity.getValue();
ImportParams params = new ImportParams();
params.setTitleRows(2);
params.setHeadRows(1);
params.setNeedSave(true);
try {
List<QuartzJob> listQuartzJobs = ExcelImportUtil.importExcel(file.getInputStream(), QuartzJob.class, params);
//add-begin-author:taoyan date:20210909 for:导入定时任务，并不会被启动和调度，需要手动点击启动，才会加入调度任务中 #2986
for (QuartzJob job : listQuartzJobs) {
job.setStatus(CommonConstant.STATUS_DISABLE);
}
List<String> list = ImportExcelUtil.importDateSave(listQuartzJobs, IQuartzJobService.class, errorMessage, CommonConstant.SQL_INDEX_UNIQ_JOB_CLASS_NAME);
//add-end-author:taoyan date:20210909 for:导入定时任务，并不会被启动和调度，需要手动点击启动，才会加入调度任务中 #2986
errorLines += list.size();
successLines += (listQuartzJobs.size() - errorLines);
// } catch (Exception e) {
// log.error(e.getMessage(), e);
// return Result.error("文件导入失败！");
// } finally {
// try {
// file.getInputStream().close();
// } catch (IOException e) {
// e.printStackTrace();
// }
// }
// }return Result.ok("");}/*** 立即执行** @param id* @return*///@RequiresRoles("admin")@GetMapping("/execute")public Result<?> execute(@RequestParam(name = "id", required = true) String id) {QuartzJob quartzJob = quartzJobService.getById(id);if (quartzJob == null) {return Result.error("未找到对应实体");}try {quartzJobService.execute(quartzJob);} catch (Exception e) {//e.printStackTrace();log.info("定时任务 立即执行失败>>" + e.getMessage());return Result.error("执行失败!");}return Result.ok("执行成功!");}}
@Data
@TableName("sys_quartz_job")
public class QuartzJob implements Serializable {private static final long serialVersionUID = 1L;/*** id*/@TableId(type = IdType.ASSIGN_ID)private java.lang.String id;/*** 创建人*/private java.lang.String createBy;/*** 创建时间*/@JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")private java.util.Date createTime;/*** 删除状态*/private java.lang.Integer delFlag;/*** 修改人*/private java.lang.String updateBy;/*** 修改时间*/@JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")private java.util.Date updateTime;/*** 任务类名*/@Excel(name = "任务类名", width = 40)private java.lang.String jobClassName;/*** cron表达式*/@Excel(name = "cron表达式", width = 30)private java.lang.String cronExpression;/*** 参数*/@Excel(name = "参数", width = 15)private java.lang.String parameter;/*** 描述*/@Excel(name = "描述", width = 40)private java.lang.String description;/*** 状态 0正常 -1停止*/@Excel(name = "状态", width = 15)private java.lang.Integer status;}```Mapper```java
@Mapper
public interface QuartzJobMapper extends BaseMapper<QuartzJob> {/*** 根据jobClassName查询* @param jobClassName 任务类名* @return*/public List<QuartzJob> findByJobClassName(@Param("jobClassName") String jobClassName);}```+ xml
```xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.example.schduletest.mapper.QuartzJobMapper"><!-- 根据jobClassName查询 --><select id="findByJobClassName" resultType="com.example.schduletest.entity.QuartzJob">select * from sys_quartz_job where job_class_name = #{jobClassName}</select>
</mapper>```+ Service ```java
package com.example.schduletest.service;import com.example.schduletest.entity.QuartzJob;
import org.quartz.SchedulerException;import com.baomidou.mybatisplus.extension.service.IService;import java.util.List;/*** @Description: 定时任务*/
public interface IQuartzJobService extends IService<QuartzJob> {/*** 通过类名寻找定时任务* @param jobClassName 类名* @return List<QuartzJob>*/List<QuartzJob> findByJobClassName(String jobClassName);/*** 保存定时任务* @param quartzJob* @return boolean*/boolean saveAndScheduleJob(QuartzJob quartzJob);/*** 编辑定时任务* @param quartzJob* @return boolean* @throws SchedulerException*/boolean editAndScheduleJob(QuartzJob quartzJob) throws SchedulerException;/*** 删除定时任务* @param id* @return boolean*/boolean deleteAndStopJob(String id);/*** 恢复定时任务* @param quartzJob* @return*/boolean resumeJob(QuartzJob quartzJob);/*** 执行定时任务* @param quartzJob* @throws Exception*/void execute(QuartzJob quartzJob) throws Exception;/*** 暂停任务* @param quartzJob* @throws SchedulerException*/void pause(QuartzJob quartzJob);
}- 所有依赖
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.5</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>Schdule-Test</artifactId><version>0.0.1-SNAPSHOT</version><name>Schdule-Test</name><description>Demo project for Spring Boot</description><properties><java.version>8</java.version></properties><dependencies><!--Spring tx 坐标--><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.1.1</version></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.4.3.1</version></dependency><!-- 下一节需要用到的定时任务依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-quartz</artifactId></dependency><!-- Spring 官方自带了依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>cn.afterturn</groupId><artifactId>easypoi-annotation</artifactId><version>4.4.0</version></dependency><dependency><groupId>me.zhengjie</groupId><artifactId>eladmin-system</artifactId><version>2.6</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>- 完整yaml
server:port: 8080
spring:datasource:name: mydburl: jdbc:mysql://localhost:3306/test?allowMultiQueries=true&useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=Asia/Shanghaiusername: rootpassword: passworddriver-class-name: com.mysql.cj.jdbc.Driverquartz:job-store-type: jdbc#定时任务启动开关，true-开 false-关auto-startup: true#延迟1秒启动定时任务startup-delay: 1s#启动时更新己存在的Joboverwrite-existing-jobs: trueproperties:org:quartz:scheduler:instanceName: MySchedulerinstanceId: AUTOjobStore:class: org.springframework.scheduling.quartz.LocalDataSourceJobStoredriverDelegateClass: org.quartz.impl.jdbcjobstore.StdJDBCDelegatetablePrefix: QRTZ_isClustered: falsemisfireThreshold: 12000clusterCheckinInterval: 15000threadPool:class: org.quartz.simpl.SimpleThreadPoolthreadCount: 1threadPriority: 5threadsInheritContextClassLoaderOfInitializingThread: truejdbc:initialize-schema: nevermybatis:mapper-locations: classpath:Mapper/*.xml #注意：一定要对应mapper映射xml文件的所在路径type-aliases-package: com.example.schduletest.entity # 注意：对应实体类的路径这是 本篇文章项目 结构 ，感谢大家的学习
- 尾声:
终归本质来说，第三方框架， 最后集成在业务层面也大致只不过是个增删改查， 只不过 在业务层面不同而已，例如我们只是在新增的时候通过调度器创建了一个 Job
public boolean saveAndScheduleJob(QuartzJob quartzJob) {// DB设置修改quartzJob.setDelFlag(1);boolean success = this.save(quartzJob);if (success) {if ("NORMAL".equals(quartzJob.getStatus())) {// 定时器添加this.schedulerAdd(quartzJob.getId(), quartzJob.getJobClassName().trim(), quartzJob.getCronExpression().trim(), quartzJob.getParameter());}}return success;}
博客项目演示层面 ，只是做了一个Demo : 更多 具体详情使用细节 ，请关注 源码实现细节