JAVA线程控制超时问题
public class TimeoutThread extends Thread{
/**
* 计时器超时时间
*/
private long timeout;
/**
* 计时是否被取消
*/
private boolean isCanceled = false;
private boolean flag = false;
/**
* 当计时器超时时抛出的异常
*/
private TimeoutException timeoutException;
/**
* 构造器
* @param timeout 指定超时的时间
*/
public TimeoutThread(long timeout,TimeoutException timeoutErr) {
super();
this.timeout = timeout;
this.timeoutException = timeoutErr;
//设置本线程为守护线程
this.setDaemon(true);
}
/**
* 取消计时
*/
public void cancel()
{
isCanceled = true;
}
/**
* 启动超时计时器
*/
public void run()
{
try {
Thread.sleep(timeout);
if(!isCanceled){
throw timeoutException;
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public class TimeoutException extends RuntimeException { /**
* 序列化号
*/
private static final long serialVersionUID = -8078853655388692688L; public TimeoutException(String errMessage)
{
super(errMessage);
}
}
public class Test {
boolean flag = false;
TimeoutThread t = new TimeoutThread(60,new TimeoutException("超时"));
try{
t.start();
double i = 1;
while(i>0){
i++;
}
t.cancel();
System.out.println("超时");
System.out.println(i);
}catch (TimeoutException e)
{
System.out.println("111111111111");
System.out.println("超时");
}
}
}
运行main的时候怎么捕获不到 TimeoutException啊 谁帮帮我啊!!!!!!!!!
public class TimeoutThread extends Thread{
/**
* 计时器超时时间
*/
private long timeout;
/**
* 计时是否被取消
*/
private boolean isCanceled = false;
private boolean flag = false;
/**
* 当计时器超时时抛出的异常
*/
private TimeoutException timeoutException;
/**
* 构造器
* @param timeout 指定超时的时间
*/
public TimeoutThread(long timeout,TimeoutException timeoutErr) {
super();
this.timeout = timeout;
this.timeoutException = timeoutErr;
//设置本线程为守护线程
this.setDaemon(true);
}
/**
* 取消计时
*/
public void cancel()
{
isCanceled = true;
}
/**
* 启动超时计时器
*/
public void run()
{
try {
Thread.sleep(timeout);
if(!isCanceled){
throw timeoutException;
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public class TimeoutException extends RuntimeException { /**
* 序列化号
*/
private static final long serialVersionUID = -8078853655388692688L; public TimeoutException(String errMessage)
{
super(errMessage);
}
}
public class Test {
boolean flag = false;
TimeoutThread t = new TimeoutThread(60,new TimeoutException("超时"));
try{
t.start();
double i = 1;
while(i>0){
i++;
}
t.cancel();
System.out.println("超时");
System.out.println(i);
}catch (TimeoutException e)
{
System.out.println("111111111111");
System.out.println("超时");
}
}
}
运行main的时候怎么捕获不到 TimeoutException啊 谁帮帮我啊!!!!!!!!!
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