有一個(gè)自動(dòng)備份mysql 數(shù)據(jù)庫的需求，windows 下可以寫一個(gè)bat文件，然后加入到計(jì)劃任務(wù)中設(shè)置執(zhí)行，可是偉大的Windows系統(tǒng)加入計(jì)劃任務(wù)有時(shí)間卻不執(zhí)行，而且設(shè)置計(jì)劃任務(wù)也挺復(fù)雜（寫腳本把執(zhí)行備份的腳本加入計(jì)劃中）。那就用程序?qū)懸粋€(gè)吧備份的功能吧。還是調(diào)用備份的腳本，自動(dòng)任務(wù)部分使用Spring3的@Scheduled來實(shí)現(xiàn)。
pom.xml文件中依賴的jar：
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.1.4.RELEASE</version>
</dependency>
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>1.8.5</version>
</dependency>
</dependencies>
spring-config.xml配置如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:task="http://www.springframework.org/schema/task"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task-3.1.xsd http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<context:component-scan base-package="cn.test" />
<task:annotation-driven/>
</beans>
定義一個(gè)接口，寫一個(gè)實(shí)現(xiàn)類。
package cn.test;
/**
* Created by libo on 13-12-18.
*/
public interface SchedulerService {
void doSome();
}
package cn.test;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import java.io.*;
import java.util.Calendar;
/**
* Created by libo on 13-12-18.
*/@Component
public class SchedulerServiceImpl
implements SchedulerService {
@Scheduled(cron = "0/5 * * * * ? ")
//每5秒執(zhí)行一次
@Override
public void doSome() {
System.out.println("do soming
" + Calendar.getInstance().getTime());
Runtime runtime = Runtime.getRuntime();
Process p =
null;
FileWriter fw =
null;
try {
//此處執(zhí)行的是ipconfig命令，可以換成任何cmd 里的命令。
p = runtime.exec("cmd /c ipconfig /all");
BufferedReader reader =
new BufferedReader(
new InputStreamReader(p.getInputStream(), "GBK"));
// 將命令執(zhí)行結(jié)果保存到文件中
fw =
new FileWriter(
new File("C:/temp/cmdout.txt"));
String line =
null;
while ((line = reader.readLine()) !=
null) {
fw.write(line + "\n");
}
fw.flush();
}
catch (IOException e) {
e.printStackTrace();
}
finally {
if (p !=
null) {
p.destroy();
}
try {
if (fw !=
null)
fw.close();
if (p !=
null)
p.getOutputStream().close();
}
catch (IOException e) {
e.printStackTrace();
}
}
System.out.println("do soming
" + Calendar.getInstance().getTime());
}
}
測(cè)試類(注意：使用junit是不能測(cè)試自動(dòng)任務(wù)地！)
package cn.test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* Created by libo on 13-12-18.
*/public class Test {
public static void main(String[] args){
ApplicationContext context =
new ClassPathXmlApplicationContext("/spring-config.xml");
System.out.println("請(qǐng)等待5秒
讓任務(wù)飛一會(huì)兒!");
}
}
end.
posted on 2013-12-18 16:35
Libo 閱讀(812)
評(píng)論(0) 編輯 收藏 所屬分類:
其他