JFinal定时任务的配置
最近在使用JFinal的框架，之前使用spring框架，直接在配置文件配置下就可以了。所以从网上找了相关例子，整理了一下
1.建一个配置文件job.properties，用作定时配置
job=com.demo.job.JobA
cron=* * 2 * * ?
enable=true
bjob=com.demo.job.JobB
bcron=* * 2 * * ?
benable=true对应执行的任务类的包名配置好，定时时间配置好就行了，一定要把XXXenable设置成true（开启状态）
对于定时设置，参考：quartz 时间配置 就可以了
2.定时执行的类
比如刚才把com.demo.job.JobA弄好了，于是在该类下，代码如下：
public class JobA implements Job{
private static Logger log = Logger.getLogger(JobA.class);
/**
* 执行定时任务
*/
@Override
public void execute(JobExecutionContext arg0) throws JobExecutionException {
System.out.println("我被执行了");
}
}3.定时类
需要读取刚才写好的job.properties，具体怎么读可以自己改写，我是这么做的（也是改的）
/**
* 实现作业的调度
*
* @author jerri liu
*/
public class NewQuartzPlugin implements IPlugin {
private Logger logger = LoggerFactory.getLogger(getClass());
private SchedulerFactory sf = null;
private Scheduler sched = null;
private String config = "job.properties";
private Properties properties;
public NewQuartzPlugin(String config) {
this.config = config;
}
public NewQuartzPlugin() {
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public boolean start() {
sf = new StdSchedulerFactory();
try {
sched = sf.getScheduler();
}
catch (SchedulerException e) {
new RuntimeException(e);
}
loadProperties();
Enumeration enums = properties.keys();
while (enums.hasMoreElements()) {
String key = enums.nextElement() + "";
if (!key.endsWith("job")) {
continue;
}
String cronKey = key.substring(0, key.indexOf("job")) + "cron";
String enable = key.substring(0, key.indexOf("job")) + "enable";
if (isDisableJob(enable)) {
continue;
}
String jobClassName = properties.get(key) + "";
String jobCronExp = properties.getProperty(cronKey) + "";
Class clazz;
try {
clazz = Class.forName(jobClassName);
}
catch (ClassNotFoundException e) {
throw new RuntimeException(e);
}
JobDetail job = newJob(clazz).withIdentity(jobClassName, jobClassName).build();
CronTrigger trigger = newTrigger().withIdentity(jobClassName, jobClassName).withSchedule(cronSchedule(jobCronExp)).build();
Date ft = null;
try {
ft = sched.scheduleJob(job, trigger);
sched.start();
}
catch (SchedulerException ee) {
new RuntimeException(ee);
}
logger.info(job.getKey() + " has been scheduled to run at: " + ft + " and repeat based on expression: " + trigger.getCronExpression());
}
return true;
}
private boolean isDisableJob(String enable) {
return Boolean.valueOf(properties.get(enable) + "") == false;
}
private void loadProperties() {
properties = new Properties();
InputStream is = NewQuartzPlugin.class.getClassLoader().getResourceAsStream(config);
try {
properties.load(is);
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
public boolean stop() {
try {
sched.shutdown();
}
catch (SchedulerException e) {
logger.error("shutdown error", e);
return false;
}
return true;
}
public static void main(String[] args) {
NewQuartzPlugin plugin = new NewQuartzPlugin();
plugin.start();
System.out.println("执行成功！！！");
}
}代码很好看懂，就是遍历读这三个配置（可能多个任务），然后根据启动状态分别去执行这几个任务
4.在插件中引入这个定时插件
// quartz插件
NewQuartzPlugin quartzPlugin = new NewQuartzPlugin("job.properties");
me.add(quartzPlugin);
这样，定时器就配置好了，我设置的是每天早上2点执行该任务（当然公司需要，展示的空代码，需自己填充）