当我使用下面的方法执行shell脚本时,我的“if(p.exitValue()!= 0)”代码在成功时运行TWICE ...有谁知道为什么?此外,当shell脚本失败时,else代码会运行一次,然后无论如何都会再次运行成功代码。我究竟做错了什么?
void exec(String commander){
Process p = null;
try {
p = Runtime.getRuntime().exec(commander);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
StreamGobbler errorGobbler = new
StreamGobbler(p.getErrorStream(), "ERROR");
// any output?
StreamGobbler outputGobbler = new
StreamGobbler(p.getInputStream(), "OUTPUT");
// kick them off
errorGobbler.start();
outputGobbler.start();
// any error???
int exitVal = 1;
try {
exitVal = p.waitFor();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("ExitValue: " + exitVal);
if (p.exitValue() != 0)
{
//SUCCESS Code RUNS TWICE
}
else {
//FAILURE Code Runs Once, then Success Code Runs anyway!! WHY?
}
}
答案 0 :(得分:0)
也许你的void exec(String commander)
也被召唤了两次。你检查过了吗?