Java定时框架Quartz实例详解与定时任务的Mongodb、Mysql持久化实现（三）Quartz持久化

Biegral 2016/8/12 23:18:29 3448

（一）Quartz组件详解

（二）Quartz配置详解

就像我在上一篇中说的，把调度器信息存储在内存中非常的快也易于配置。但当调度器进程一旦被终止，所有的 Job 和 Trigger 的状态就丢失了。所以我们就需要把调度器信息持久化到数据库，在服务器重启时就可以自动启动终止的任务。Quartz不可能没有考虑到这个问题，可以通过引入Jar包与配置实现，并支持多种数据库版本。

一、持久化到MongoDB

1、引入Jar依赖

好吧，我承认，这竟然是我做这个工作最费时的一步。我竟然没找到现成的Jar包？！这个还好，我是用Maven的嘛，我引入依赖就好了嘛，结果竟然在中央版本库中找不到这个依赖？！好吧……经过了中间省略无数尝试后，终于在git上找到了这个依赖的仓库，引入到pom.xml中：

<repositories>
	<repository>
		<id>clojars.org</id>
		<url>http://clojars.org/repo</url>
		<layout>default</layout>
		<releases>
			<enabled>true</enabled>
			<updatePolicy>never</updatePolicy>
		</releases>
		<snapshots>
			<enabled>true</enabled>
			<updatePolicy>never</updatePolicy>
		</snapshots>
	</repository>
</repositories>
引入依赖： 

<dependency>
	<groupId>com.novemberain</groupId>
	<artifactId>quartz-mongodb</artifactId>
	<version>2.0.0-rc2</version>
</dependency>

二、配置quartz.properties 

# Scheduler Properties 
org.quartz.scheduler.instanceName = MyScheduler
org.quartz.scheduler.instanceId = AUTO
# ThreadPool Properties
org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount = 1
org.quartz.threadPool.threadPriority = 5
# JobStore Properties  
org.quartz.jobStore.class=com.novemberain.quartz.mongodb.MongoDBJobStore  
org.quartz.jobStore.mongoUri=mongodb://localhost:27017    
org.quartz.jobStore.dbName=quartzJobs  
org.quartz.jobStore.collectionPrefix=job  
org.quartz.jobStore.misfireThreshold=60000
其中调度器与线程池的配置在上一篇中说过了，这里主要说明JobStore的配置：

class属性不再使用RamJobStore，改为使用MongoDBJobStore，这标志改为使用MongoDB去存储调度信息；

mongoUrl，很清楚，mongo的访问路径；

dbName，也很清楚，存储调度信息的mongo集合名；

collectionPrefix，是一个标志性集合名的前缀，用于区别其他用途的集合；

misfireThreadhold，这个就需要说说什么是misfire了，就是在该执行job的时候，因为系统崩溃等原因没有执行，则这时候就需要错失执行策略了，这个东西比较复杂，可以参看这篇博客http://www.blogjava.net/zuxiong/archive/2016/03/03/429525.aspx

3、在web.xml中配置quartz.properties，在服务器启动时加载这个配置文件

<servlet>
	<servlet-name>QuartzInitializer</servlet-name>
	<servlet-class>org.quartz.ee.servlet.QuartzInitializerServlet</servlet-class>
	<init-param>
		<param-name>shutdown-on-unload</param-name>
		<param-value>true</param-value>
	</init-param>
	<init-param>
		<param-name>config-file</param-name>
		<param-value>quartz.properties</param-value>
	</init-param>
	<load-on-startup>1</load-on-startup>
</servlet>
4、启动服务器后，就会看到MongoDB中产生对应数据库结构：


然后，启动任务，调度信息就会存储到Mongo中，在服务器重启后，仍然会启动未终止的任务。支持持久化到MongoDB完成！


二、持久化到Mysql

1、引入jar

<dependency>
    	<groupId>mysql</groupId>
    	<artifactId>mysql-connector-java</artifactId>
    	<version>5.1.35</version>
</dependency>
2、配置quartz-properties
#org.quartz.dataSource.myDS.driver = com.mysql.jdbc.Driver
#org.quartz.dataSource.myDS.URL = jdbc:mysql://localhost:3306/quartz?characterEncoding=utf-8
#org.quartz.dataSource.myDS.user = root
#org.quartz.dataSource.myDS.password = 
#org.quartz.dataSource.myDS.maxConnections = 5
3、在数据库中创建表结构
#
# Quartz seems to work best with the driver mm.mysql-2.0.7-bin.jar
#
# PLEASE consider using mysql with innodb tables to avoid locking issues
#
# In your Quartz properties file, you'll need to set 
# org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
#

DROP TABLE IF EXISTS QRTZ_FIRED_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_PAUSED_TRIGGER_GRPS;
DROP TABLE IF EXISTS QRTZ_SCHEDULER_STATE;
DROP TABLE IF EXISTS QRTZ_LOCKS;
DROP TABLE IF EXISTS QRTZ_SIMPLE_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_SIMPROP_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_CRON_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_BLOB_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_TRIGGERS;
DROP TABLE IF EXISTS QRTZ_JOB_DETAILS;
DROP TABLE IF EXISTS QRTZ_CALENDARS;


CREATE TABLE QRTZ_JOB_DETAILS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    JOB_NAME  VARCHAR(200) NOT NULL,
    JOB_GROUP VARCHAR(200) NOT NULL,
    DESCRIPTION VARCHAR(250) NULL,
    JOB_CLASS_NAME   VARCHAR(250) NOT NULL,
    IS_DURABLE VARCHAR(1) NOT NULL,
    IS_NONCONCURRENT VARCHAR(1) NOT NULL,
    IS_UPDATE_DATA VARCHAR(1) NOT NULL,
    REQUESTS_RECOVERY VARCHAR(1) NOT NULL,
    JOB_DATA BLOB NULL,
    PRIMARY KEY (SCHED_NAME,JOB_NAME,JOB_GROUP)
);

CREATE TABLE QRTZ_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(200) NOT NULL,
    TRIGGER_GROUP VARCHAR(200) NOT NULL,
    JOB_NAME  VARCHAR(200) NOT NULL,
    JOB_GROUP VARCHAR(200) NOT NULL,
    DESCRIPTION VARCHAR(250) NULL,
    NEXT_FIRE_TIME BIGINT(13) NULL,
    PREV_FIRE_TIME BIGINT(13) NULL,
    PRIORITY INTEGER NULL,
    TRIGGER_STATE VARCHAR(16) NOT NULL,
    TRIGGER_TYPE VARCHAR(8) NOT NULL,
    START_TIME BIGINT(13) NOT NULL,
    END_TIME BIGINT(13) NULL,
    CALENDAR_NAME VARCHAR(200) NULL,
    MISFIRE_INSTR SMALLINT(2) NULL,
    JOB_DATA BLOB NULL,
    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
    FOREIGN KEY (SCHED_NAME,JOB_NAME,JOB_GROUP)
        REFERENCES QRTZ_JOB_DETAILS(SCHED_NAME,JOB_NAME,JOB_GROUP)
);

CREATE TABLE QRTZ_SIMPLE_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(200) NOT NULL,
    TRIGGER_GROUP VARCHAR(200) NOT NULL,
    REPEAT_COUNT BIGINT(7) NOT NULL,
    REPEAT_INTERVAL BIGINT(12) NOT NULL,
    TIMES_TRIGGERED BIGINT(10) NOT NULL,
    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
        REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
);

CREATE TABLE QRTZ_CRON_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(200) NOT NULL,
    TRIGGER_GROUP VARCHAR(200) NOT NULL,
    CRON_EXPRESSION VARCHAR(200) NOT NULL,
    TIME_ZONE_ID VARCHAR(80),
    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
        REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
);

CREATE TABLE QRTZ_SIMPROP_TRIGGERS
  (          
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(200) NOT NULL,
    TRIGGER_GROUP VARCHAR(200) NOT NULL,
    STR_PROP_1 VARCHAR(512) NULL,
    STR_PROP_2 VARCHAR(512) NULL,
    STR_PROP_3 VARCHAR(512) NULL,
    INT_PROP_1 INT NULL,
    INT_PROP_2 INT NULL,
    LONG_PROP_1 BIGINT NULL,
    LONG_PROP_2 BIGINT NULL,
    DEC_PROP_1 NUMERIC(13,4) NULL,
    DEC_PROP_2 NUMERIC(13,4) NULL,
    BOOL_PROP_1 VARCHAR(1) NULL,
    BOOL_PROP_2 VARCHAR(1) NULL,
    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP) 
    REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
);

CREATE TABLE QRTZ_BLOB_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_NAME VARCHAR(200) NOT NULL,
    TRIGGER_GROUP VARCHAR(200) NOT NULL,
    BLOB_DATA BLOB NULL,
    PRIMARY KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP),
    FOREIGN KEY (SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
        REFERENCES QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
);

CREATE TABLE QRTZ_CALENDARS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    CALENDAR_NAME  VARCHAR(200) NOT NULL,
    CALENDAR BLOB NOT NULL,
    PRIMARY KEY (SCHED_NAME,CALENDAR_NAME)
);

CREATE TABLE QRTZ_PAUSED_TRIGGER_GRPS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    TRIGGER_GROUP  VARCHAR(200) NOT NULL, 
    PRIMARY KEY (SCHED_NAME,TRIGGER_GROUP)
);

CREATE TABLE QRTZ_FIRED_TRIGGERS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    ENTRY_ID VARCHAR(95) NOT NULL,
    TRIGGER_NAME VARCHAR(200) NOT NULL,
    TRIGGER_GROUP VARCHAR(200) NOT NULL,
    INSTANCE_NAME VARCHAR(200) NOT NULL,
    FIRED_TIME BIGINT(13) NOT NULL,
    SCHED_TIME BIGINT(13) NOT NULL,
    PRIORITY INTEGER NOT NULL,
    STATE VARCHAR(16) NOT NULL,
    JOB_NAME VARCHAR(200) NULL,
    JOB_GROUP VARCHAR(200) NULL,
    IS_NONCONCURRENT VARCHAR(1) NULL,
    REQUESTS_RECOVERY VARCHAR(1) NULL,
    PRIMARY KEY (SCHED_NAME,ENTRY_ID)
);

CREATE TABLE QRTZ_SCHEDULER_STATE
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    INSTANCE_NAME VARCHAR(200) NOT NULL,
    LAST_CHECKIN_TIME BIGINT(13) NOT NULL,
    CHECKIN_INTERVAL BIGINT(13) NOT NULL,
    PRIMARY KEY (SCHED_NAME,INSTANCE_NAME)
);

CREATE TABLE QRTZ_LOCKS
  (
    SCHED_NAME VARCHAR(120) NOT NULL,
    LOCK_NAME  VARCHAR(40) NOT NULL, 
    PRIMARY KEY (SCHED_NAME,LOCK_NAME)
);
四、web.xml配置后即可完成持久化


本文转载:CSDN博客

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