java adsl 自動拔號！

蜘蛛伺服器放在內網，用adsl撥號，老斷網，自己編寫了個自動撥號的程式，方法思路和大家分享一下！

Rasdial.java：

    public void runbat() {
        String cmd = "cmd /c start D:/rasdial.bat";
try {
            Process ps = Runtime.getRuntime().exec(cmd);
            System.out.println(ps.getInputStream());
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }

    }

public void work() {
try {
            InetAddress ad = InetAddress.getByName("119.75.217.56");
boolean state = ad.isReachable(5000); // 測試是否可以達到該地址
            if (state) {
                System.err.println("串連" + ad.getHostAddress() + "成功...");
            } else {
                System.err.println("串連" + ad.getHostAddress() + "失敗！嘗試重新撥號....");
                runbat();
            }
        } catch (IOException ioe) {
            System.err.println("重新撥號失敗...");
            ioe.printStackTrace();
        }
    }

 

rasdial.bat檔案（windows rasdial 命令）

rasdial.exe  /disconnect
rasdial.exe  串連名 使用者名稱 密碼

定時器：

<!-- 重新撥號-->
<bean id="Rasdial" class="*.*.*.*.Rasdial">
</bean>
<bean id="jobDetailRasdial" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
<property name="targetObject" ref="Rasdial" />
<property name="targetMethod" value="run" />
<property name="concurrent" value="false" />
</bean>
<bean id="cronTriggerRasdial" class="org.springframework.scheduling.quartz.CronTriggerBean">
<property name="jobDetail" ref="jobDetailRasdial" />
<property name="cronExpression" value="0 0/30 * * * ?" />
<property name="startDelay" value="4000" />
</bean>


<!-- 執行觸發器  -->
<bean id="schedulerFactory"
        class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
<property name="triggers">
<list>

<!-- 撥號 -->
<ref bean="cronTriggerRasdial" />
</list>
</property>
</bean>