我有下一个代码:
Process p = Runtime.getRuntime().exec(args);
我希望我的程序等待Runtime.getRuntime()。exec(args);完成导致它持续2-3秒然后继续。
想法?
答案 0 :(得分:5)
Process p = Runtime.getRuntime().exec(args);
int status = p.waitFor();
来自JavaDoc:
如果需要,会导致当前线程等待,直到此Process对象表示的进程终止。如果子进程已终止,则此方法立即返回。如果子进程尚未终止,则调用线程将被阻塞,直到子进程退出。
答案 1 :(得分:2)
以下是示例代码:
Process proc = Runtime.getRuntime().exec(ANonJava.exe@);
InputStream in = proc.getInputStream();
byte buff[] = new byte[1024];
int cbRead;
try {
while ((cbRead = in.read(buff)) != -1) {
// Use the output of the process...
}
} catch (IOException e) {
// Insert code to handle exceptions that occur
// when reading the process output
}
// No more output was available from the process, so...
// Ensure that the process completes
try {
proc.waitFor();
} catch (InterruptedException) {
// Handle exception that could occur when waiting
// for a spawned process to terminate
}
// Then examine the process exit code
if (proc.exitValue() == 1) {
// Use the exit value...
}
您可以在此网站上找到更多信息:http://docs.rinet.ru/JWP/ch14.htm