public String executeCmds(String[] cmds) {
String result = "";
File wd = new File("/bin");
Process proc = null;
try {
proc = Runtime.getRuntime().exec("/bin/bash", null, wd);
}
catch (IOException e) {
e.printStackTrace();
return "IOExeception before cmd execute";
}
if (proc != null) {
BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(proc.getOutputStream())), true);
for(int i=0;i<cmds.length;i++)
out.println(cmds[i]);
try {
String line;
while ((line = in.readLine())!=null){
result = result + line + "\n";
}
proc.waitFor();
in.close();
out.close();
proc.destroy();
}
catch (Exception e) {
e.printStackTrace();
return "Exeception happens when cmd execute";
}
}
return result;
}谨记:
1、cmds[cmds.length-1]="exit",否则while循环不会结束
2、切不可System.setProperty("line.separator", "\r\n"),否则line = in.readLine()不会读到任何信息
本文介绍了一个使用Java执行多个Shell命令的方法,并返回命令执行结果的字符串。该方法通过Runtime类调用/bin/bash进程,在该进程中发送命令并获取输出。
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