当我觉得springboot自带的定时任务已经很好用的时候,身边的人给我提了一个需求,我想要一个随时可以调节生效时间并且要配置界面的定时任务的时候我懵逼了。。。
xxl-job
简介
XXL-JOB是一个分布式任务调度平台,其核心设计目标是开发迅速、学习简单、轻量级、易扩展。现已开放源代码并接入多家公司线上产品线,开箱即用。
使用
1. 克隆项目
1.1 登录gitee下载xxl-job的代码,地址为:https://gitee.com/xuxueli0323...
1.2 按照https地址进行克隆
1.3 克隆成功
2. 用IDEA打开xxl-job项目
3. 进行相关配置
3.1 首先需要配置mysql数据库,对应位置改成自己的数据库地址:
3.2 需要先新建一个数据库,名称为xxl-job
3.3 运行项目为我们准备的sql即可
4. 运行项目
4.1 运行xxl-job-admin模块下的main方法
4.2 打开配置界面
本地登录地址为:http://localhost:8080/xxl-job-admin/toLogin
账号密码就在你运行的sql里面:
账号:admin
密码:123456
自己的项目配置xxl-job
1. 添加maven依赖
推荐一个maven包搜索的网址:https://mvnrepository.com/
org.springframework.boot
spring-boot-starter-web
com.xuxueli
xxl-job-core
2.2.0
2. 在配置文件中添加执行器配置
可以在克隆的项目中找到该配置文件内容:
/xxl-job/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/resources/application.properties
# 端口号要和admin程序不冲突,否则不能启动
server.port=8081
# no web
#spring.main.web-environment=false
# log config
logging.config=classpath:logback.xml
# 调度中心部署跟地址 [选填]:如调度中心集群部署存在多个地址则用逗号分隔。执行器将会使用该地址进行"执行器心跳注册"和"任务结果回调";为空则关闭自动注册;
xxl.job.admin.addresses=http://127.0.0.1:8080/xxl-job-admin
# 执行器通讯TOKEN [选填]:非空时启用;
xxl.job.accessToken=
# 执行器AppName [选填]:执行器心跳注册分组依据;为空则关闭自动注册
xxl.job.executor.appname=xxl-job-executor-sample
# 执行器注册 [选填]:优先使用该配置作为注册地址,为空时使用内嵌服务 ”IP:PORT“ 作为注册地址。从而更灵活的支持容器类型执行器动态IP和动态映射端口问题。
xxl.job.executor.address=
# 执行器IP [选填]:默认为空表示自动获取IP,多网卡时可手动设置指定IP,该IP不会绑定Host仅作为通讯实用;地址信息用于 "执行器注册" 和 "调度中心请求并触发任务";
xxl.job.executor.ip=
# 执行器端口号 [选填]:小于等于0则自动获取;默认端口为9999,单机部署多个执行器时,注意要配置不同执行器端口;
xxl.job.executor.port=9999
# 执行器运行日志文件存储磁盘路径 [选填] :需要对该路径拥有读写权限;为空则使用默认路径;
xxl.job.executor.logpath=/data/applogs/xxl-job/jobhandler
# 执行器日志文件保存天数 [选填] : 过期日志自动清理, 限制值大于等于3时生效; 否则, 如-1, 关闭自动清理功能;
xxl.job.executor.logretentiondays=30
3. 执行器组件配置
可以在克隆的项目中找到该执行器组件配置内容:
/xxl-job/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/java/com/xxl/job/executor/core/config/XxlJobConfig.java
import com.xxl.job.core.executor.impl.XxlJobSpringExecutor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* xxl-job config
*
* @author xuxueli 2017-04-28
*/
@Configuration
public class XxlJobConfig {
private Logger logger = LoggerFactory.getLogger(XxlJobConfig.class);
@Value("${xxl.job.admin.addresses}")
private String adminAddresses;
@Value("${xxl.job.accessToken}")
private String accessToken;
@Value("${xxl.job.executor.appname}")
private String appname;
@Value("${xxl.job.executor.address}")
private String address;
@Value("${xxl.job.executor.ip}")
private String ip;
@Value("${xxl.job.executor.port}")
private int port;
@Value("${xxl.job.executor.logpath}")
private String logPath;
@Value("${xxl.job.executor.logretentiondays}")
private int logRetentionDays;
@Bean
public XxlJobSpringExecutor xxlJobExecutor() {
logger.info(">>>>>>>>>>> xxl-job config init.");
XxlJobSpringExecutor xxlJobSpringExecutor = new XxlJobSpringExecutor();
xxlJobSpringExecutor.setAdminAddresses(adminAddresses);
xxlJobSpringExecutor.setAppname(appname);
xxlJobSpringExecutor.setAddress(address);
xxlJobSpringExecutor.setIp(ip);
xxlJobSpringExecutor.setPort(port);
xxlJobSpringExecutor.setAccessToken(accessToken);
xxlJobSpringExecutor.setLogPath(logPath);
xxlJobSpringExecutor.setLogRetentionDays(logRetentionDays);
return xxlJobSpringExecutor;
}
/**
* 针对多网卡、容器内部署等情况,可借助 "spring-cloud-commons" 提供的 "InetUtils" 组件灵活定制注册IP;
*
* 1、引入依赖:
*
* org.springframework.cloud
* spring-cloud-commons
* ${version}
*
*
* 2、配置文件,或者容器启动变量
* spring.cloud.inetutils.preferred-networks: 'xxx.xxx.xxx.'
*
* 3、获取IP
* String ip_ = inetUtils.findFirstNonLoopbackHostInfo().getIpAddress();
*/
}
4. 创建一个xxl-job的测试类
这里可以直接使用官方的测试类:
/xxl-job/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/java/com/xxl/job/executor/service/jobhandler/SampleXxlJob.java
/**
* XxlJob开发示例(Bean模式)
*
* 开发步骤:
* 1、在Spring Bean实例中,开发Job方法,方式格式要求为 "public ReturnT execute(String param)"
* 2、为Job方法添加注解 "@XxlJob(value="自定义jobhandler名称", init = "JobHandler初始化方法", destroy = "JobHandler销毁方法")",注解value值对应的是调度中心新建任务的JobHandler属性的值。
* 3、执行日志:需要通过 "XxlJobLogger.log" 打印执行日志;
*
* @author xuxueli 2019-12-11 21:52:51
*/
@Component
public class SampleXxlJob {
private static Logger logger = LoggerFactory.getLogger(SampleXxlJob.class);
/**
* 1、简单任务示例(Bean模式)
*/
@XxlJob("demoJobHandler")
public ReturnT demoJobHandler(String param) throws Exception {
XxlJobLogger.log("XXL-JOB, Hello World.");
for (int i = 0; i < 5; i++) {
XxlJobLogger.log("beat at:" + i);
TimeUnit.SECONDS.sleep(2);
}
return ReturnT.SUCCESS;
}
/**
* 2、分片广播任务
*/
@XxlJob("shardingJobHandler")
public ReturnT shardingJobHandler(String param) throws Exception {
// 分片参数
ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
XxlJobLogger.log("分片参数:当前分片序号 = {}, 总分片数 = {}", shardingVO.getIndex(), shardingVO.getTotal());
// 业务逻辑
for (int i = 0; i < shardingVO.getTotal(); i++) {
if (i == shardingVO.getIndex()) {
XxlJobLogger.log("第 {} 片, 命中分片开始处理", i);
} else {
XxlJobLogger.log("第 {} 片, 忽略", i);
}
}
return ReturnT.SUCCESS;
}
/**
* 3、命令行任务
*/
@XxlJob("commandJobHandler")
public ReturnT commandJobHandler(String param) throws Exception {
String command = param;
int exitValue = -1;
BufferedReader bufferedReader = null;
try {
// command process
Process process = Runtime.getRuntime().exec(command);
BufferedInputStream bufferedInputStream = new BufferedInputStream(process.getInputStream());
bufferedReader = new BufferedReader(new InputStreamReader(bufferedInputStream));
// command log
String line;
while ((line = bufferedReader.readLine()) != null) {
XxlJobLogger.log(line);
}
// command exit
process.waitFor();
exitValue = process.exitValue();
} catch (Exception e) {
XxlJobLogger.log(e);
} finally {
if (bufferedReader != null) {
bufferedReader.close();
}
}
if (exitValue == 0) {
return IJobHandler.SUCCESS;
} else {
return new ReturnT(IJobHandler.FAIL.getCode(), "command exit value("+exitValue+") is failed");
}
}
/**
* 4、跨平台Http任务
* 参数示例:
* "url: http://www.baidu.com\n" +
* "method: get\n" +
* "data: content\n";
*/
@XxlJob("httpJobHandler")
public ReturnT httpJobHandler(String param) throws Exception {
// param parse
if (param==null || param.trim().length()==0) {
XxlJobLogger.log("param["+ param +"] invalid.");
return ReturnT.FAIL;
}
String[] httpParams = param.split("\n");
String url = null;
String method = null;
String data = null;
for (String httpParam: httpParams) {
if (httpParam.startsWith("url:")) {
url = httpParam.substring(httpParam.indexOf("url:") + 4).trim();
}
if (httpParam.startsWith("method:")) {
method = httpParam.substring(httpParam.indexOf("method:") + 7).trim().toUpperCase();
}
if (httpParam.startsWith("data:")) {
data = httpParam.substring(httpParam.indexOf("data:") + 5).trim();
}
}
// param valid
if (url==null || url.trim().length()==0) {
XxlJobLogger.log("url["+ url +"] invalid.");
return ReturnT.FAIL;
}
if (method==null || !Arrays.asList("GET", "POST").contains(method)) {
XxlJobLogger.log("method["+ method +"] invalid.");
return ReturnT.FAIL;
}
// request
HttpURLConnection connection = null;
BufferedReader bufferedReader = null;
try {
// connection
URL realUrl = new URL(url);
connection = (HttpURLConnection) realUrl.openConnection();
// connection setting
connection.setRequestMethod(method);
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setUseCaches(false);
connection.setReadTimeout(5 * 1000);
connection.setConnectTimeout(3 * 1000);
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("Content-Type", "application/json;charset=UTF-8");
connection.setRequestProperty("Accept-Charset", "application/json;charset=UTF-8");
// do connection
connection.connect();
// data
if (data!=null && data.trim().length()>0) {
DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());
dataOutputStream.write(data.getBytes("UTF-8"));
dataOutputStream.flush();
dataOutputStream.close();
}
// valid StatusCode
int statusCode = connection.getResponseCode();
if (statusCode != 200) {
throw new RuntimeException("Http Request StatusCode(" + statusCode + ") Invalid.");
}
// result
bufferedReader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
StringBuilder result = new StringBuilder();
String line;
while ((line = bufferedReader.readLine()) != null) {
result.append(line);
}
String responseMsg = result.toString();
XxlJobLogger.log(responseMsg);
return ReturnT.SUCCESS;
} catch (Exception e) {
XxlJobLogger.log(e);
return ReturnT.FAIL;
} finally {
try {
if (bufferedReader != null) {
bufferedReader.close();
}
if (connection != null) {
connection.disconnect();
}
} catch (Exception e2) {
XxlJobLogger.log(e2);
}
}
}
/**
* 5、生命周期任务示例:任务初始化与销毁时,支持自定义相关逻辑;
*/
@XxlJob(value = "demoJobHandler2", init = "init", destroy = "destroy")
public ReturnT demoJobHandler2(String param) throws Exception {
XxlJobLogger.log("XXL-JOB, Hello World.");
return ReturnT.SUCCESS;
}
public void init(){
logger.info("init");
}
public void destroy(){
logger.info("destory");
}
}
5. 启动程序进行调试
好了,到此结束!
源码地址:
https://github.com/zhouzhaodo...