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java中exec函数使用说明
![]() Process process = Runtime.getRuntime().exec ("ls"); 说明: 1. exec的必须是可执行的程序,如果是命令行的命令则还需另外处理 2. 在windows中process = runtime.exec(new String[] { "cmd.exe","/C", "dir"}); 3. 在linux中process = runtime.exec(new String[] { "/bin/sh","-c", "echo $PATH"}); Windows中exec应用示例: import java.io.BufferedReader; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; public class compiler { public static void main(String[] args) { Runtime runtime = Runtime.getRuntime(); Process process = null; String line = null; InputStream is = null; InputStream es = null; InputStreamReader isr = null; InputStreamReader esr = null; BufferedReader ibr = null; BufferedReader ebr = null; String[] env = null; File file = new File("D://3.1.2//eclipse"); try { process = runtime.exec(new String[] { "cmd.exe", "/C", "eclipse -nl english" }, null, file); } catch (IOException e) { System.out.println(e); } // 取得子进程的输出流 is = process.getInputStream(); isr = new InputStreamReader(is); ibr = new BufferedReader(isr); // 取得子进程的错误流 es = process.getErrorStream(); esr = new InputStreamReader(es); ebr = new BufferedReader(esr); /*********************************************************************** * 如果子进程还要求有输入,则增加这样的方法 * OutputStream outputToChild =process.getOutputStream(); try { outputToChild.write(("your_command" + * "/n").getBytes()); * outputToChild.flush(); } * catch (IOException e) { * System.out.println(e); } */ try { while ((line = ibr.readLine()) != null) { System.out.println(line); } } catch (IOException e) { System.out.println(e); e.printStackTrace(); } try { while ((line = ebr.readLine()) != null) { System.out.println(line); } } catch (IOException e) { System.out.println(e); e.printStackTrace(); } } } |
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最新推荐文章于 2024-10-19 22:05:03 发布