JAVA如何调用exe或者批处理文件

梦里梦外; 2022-07-15 11:20 259阅读 0赞

/\*\* \* JavaExec.java version 1.0 Feb 22, 2010 \*/ import java.lang.Runtime; import java.lang.Process; import java.io.InputStreamReader; import java.lang.Exception; import java.io.\*; public class JavaExec \{ /\*\* \* @param args \* @author Eric Yang \* @ \*/ public static void main(String\[\] args) \{ // TODO Auto-generated method stub JavaExec javaExec = new JavaExec(); javaExec.testProcess(); \} public void testProcess() \{ try \{ String home="c:/process"; String command = "bfimport.bat -U yq -P qq -x bfimport\_71.xml -p"; String\[\] cmd = new String\[\] \{ "cmd.exe", " ", "bfimport.bat" \}; File dir = new File(home); //Process process = Runtime.getRuntime().exec(command,null, dir); Process process = Runtime.getRuntime().exec(command); /\*TestInputStream errorStream = new TestInputStream(process .getErrorStream()); errorStream.start();\*/ InputStream inputStream = process.getInputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); String line = null; while ((line = reader.readLine()) != null) \{ System.out.println(line); \} //int exitValue = process.waitFor(); //System.out.println("Return Value:" + exitValue); process.getOutputStream().close(); \} catch(IOException e) \{ System.out.println("IOException ");

修改其中的command就可以了

上面的例子确实可以获得一些输出，但是有很多情况也无法获取，再参考很多实例之后，下面的例子最强大，几乎可以捕获所有类型的命令行输出。

/\*\* \* JavaExec.java version 1.0 Feb 22, 2010 \*/ import java.lang.Runtime; import java.lang.Process; import java.io.InputStreamReader; import java.lang.Exception; import java.io.\*; class StreamDrainer implements Runnable \{ private InputStream ins; public StreamDrainer(InputStream ins) \{ this.ins = ins; \} public void run() \{ try \{ BufferedReader reader = new BufferedReader( new InputStreamReader(ins)); String line = null; while ((line = reader.readLine()) != null) \{ System.out.println(line); \} \} catch (Exception e) \{ e.printStackTrace(); \} \} \} public class JavaExec \{ /\*\* \* @param args \* \* \* @author Eric Yang \* @ \*/ public static void main(String\[\] args) \{ // TODO Auto-generated method stub System.out.println("/n Usage:java JavaExec command or java JavaExec"); JavaExec javaExec = new JavaExec(); if (args.length >= 1) \{ javaExec.testProcess(args\[0\]); \} else\{ javaExec.testProcess(null); \} \} public void testProcess(String userInputCmd) \{ try \{ String home="C:/jas\_utilities"; String command = "bfimport.bat -U root -P root -x C:/etc/bfimport\_71.xml -p"; String\[\] cmd = new String\[\] \{ "bfimport.bat", "-U ","root ", "-P"," root ", "-x ", "C:/fvt/7120modify/src/bfimport\_71.xml", " -p" \}; File dir = new File(home); //Process process = Runtime.getRuntime().exec(command,null, dir); Process process = null; if(userInputCmd == null)\{ process = Runtime.getRuntime().exec(command,null, dir); System.out.println("default command"); \} else\{ process = Runtime.getRuntime().exec(userInputCmd); System.out.println("user input command"); \} System.out.println("-----------------output informaiton------"); new Thread(new StreamDrainer(process.getInputStream())).start(); System.out.println("-----------------output informaiton------/n"); System.out.println("-----------------error informaiton------"); new Thread(new StreamDrainer(process.getErrorStream())).start(); System.out.println("-----------------error informaiton------"); process.getOutputStream().close(); int exitValue = process.waitFor(); System.out.println("Return Value:" + exitValue); process.destroy(); \} catch(Exception e) \{ System.out.println("Exception:"+e.getMessage() ); \} \} \}