Java 执行CMD命令或执行BAT批处理方式

java 执行CMD命令或执行BAT批处理

背景

日常开发中总能遇到一些奇怪的需求，例如使用java执行cmd命令或者bat批处理文件，今天就简单记录一下使用过程。

使用

废话不多说直接上代码

import java.io.BufferedReader;

import java.io.FileWriter;

import java.io.IOException;

import java.io.InputStreamReader;

public class Cmder {

/**

* 执行一个cmd命令

*

* @param cmdCommand cmd命令

* @return 命令执行结果字符串，如出现异常返回null

*/

public static String executeCmdCommand(String cmdCommand) {

StringBuilder stringBuilder = new StringBuilder();

Process process = null;

try {

process = Runtime.getRuntime().exec(cmdCommand);

BufferedReader bufferedReader = new BufferedReader(

new InputStreamReader(process.getInputStream(), "GBK"));

String line = null;

while ((line = bufferedReader.readLine()) != null) {

stringBuilder.append(line).append(" ");

}

return stringBuilder.toString();

} catch (Exception e) {

e.printStackTrace();

return null;

}

}

/**

* 执行bat文件，

*

* @param file bat文件路径

* @param isCloseWindow 执行完毕后是否关闭cmd窗口

* @return bat文件输出log

*/

public static String executeBatFile(String file, boolean isCloseWindow) {

String cmdCommand = null;

if (isCloseWindow) {

cmdCommand = "cmd.exe /c " + file;

} else {

cmdCommand = "cmd.exe /k " + file;

}

StringBuilder stringBuilder = new StringBuilder();

Process process = null;

try {

process = Runtime.getRuntime().exec(cmdCommand);

BufferedReader bufferedReader = new BufferedReader(

new InputStreamReader(process.getInputStream(), "GBK"));

String line = null;

while ((line = bufferedReader.readLine()) != null) {

stringBuilder.append(line).append(" ");

}

return stringBuilder.toString();

} catch (Exception e) {

e.printStackTrace();

return null;

}

}

/**

* 执行bat文件,新开窗口

*

* @param file bat文件路径

* @param isCloseWindow 执行完毕后是否关闭cmd窗口

* @return bat文件输出log

*/

public static String executeBatFileWithNewWindow(String file, boolean isCloseWindow) {

String cmdCommand;

if (isCloseWindow) {

cmdCommand = "cmd.exe /c start" + file;

} else {

cmdCommand = "cmd.exe /k start" + file;

}

StringBuilder stringBuilder = new StringBuilder();

Process process;

try {

process = Runtime.getRuntime().exec(cmdCommand);

BufferedReader bufferedReader = new BufferedReader(

new InputStreamReader(process.getInputStream(), "GBK"));

Strhttp://ing line;

while ((line = bufferedReader.readLine()) != null) {

stringBuilder.append(line).append(" ");

}

return stringBuildhttp://er.toString();

} catch (Exception e) {

e.printStackTrace();

return null;

}

}

/**

* 执行bat脚本

*

* @param batScript 脚本内容

* @param location 脚本存储路径

* @return 结果

*/

public static String executeBatScript(String batScript, String location) {

StringBuilder stringBuilder = new StringBuilder();

FileWriter fw = null;

try {

//生成bat文件

fw = new FileWriter(location);

fw.write(batScript);

fw.close();

} catch (IOException e) {

e.printStackTrace();

}

Process process;

try {

process = Runtime.getRuntime().exec(location);

BufferedReader bufferedReader = new BufferedReader(

new InputStreamReader(process.getInputStream(), "GBK"));

String line;

while ((line = bufferedReader.readLine()) != null) {

stringBuilder.append(line).append(" ");

}

return stringBuilder.toString();

} catch (Exception e) {

e.printStackTrace();

return null;

}

}

/**

* 执行脚本,不停止,并输出执行结果

*

* @param batScript 脚本内容

* @param location bat文件生成地址

*/

public void executeBatScriptAlways(String batScript, String location) {

FileWriter fw = null;

try {

//生成bat文件

fw = new FileWriter(location);

fw.write(batScript);

fw.close();

} catch (IOException e) {

e.printStackTrace();

}

StringBuilder stringBuilder = new StringBuilder();

//运行bat文件

Process process;

try {

process = Runtime.getRuntime().exec(location);

BufferedReader bufferedReader = new BufferedReader(

new InputStreamReader(process.getInputStream(), "GBK"));

String line;

while ((line = bufferedReader.readLine()) != null) {

System.out.println(line);

}

} catch (Exception e) {

e.printStackTrace();

}

}

}

Java 执行系统命令

1. windows

1.1 cmd

第一种方法

File dir = new File("D:\\mysql57\\mysql-5.7.29-winx64\\bin");

// String command="netstat -an";

String command = "c:\\windows\\system32\\cmd.exe /c mysqlbinlog ../data/master-bin.000006 | more";

Runtime r = Runtime.getRuntime();

Process p = r.exec(command, null, dir);

BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));

StringBuffer sb = new StringBuffer();

String inline;

while (null != (inline = br.readLine())) {

sb.append(inline).append("\n");

}

System.out.println(sb.toString());

第二种方法

try {

File dir = new File("D:\\mysql57\\mysql-5.7.29-winx64\\bin");//此处是指定路径

String[] cmd = new String[] { "cmd", "/c",

"mysqlbinlog -v ../data/master-bin.000006 | more"

};// cmd[2]是要执行的dos命令

System.out.println(cmd[2]);

Process process = Runtime.getRuntime().exec(cmd,null,dir);

// 记录dos命令的返回信息

StringBuffer resStr = new StringBuffer();

// 获取返回信息的流

InputStream in = process.getInputStream();

Reader reader = new InputStreamReader(in);

BufferedReader bReader = new BufferedReader(reader);

for (String res = ""; (res = bReader.readLine()) != null;) {

resStr.append(res + "\n");

}

System.out.println(resStr.toString());

bReader.close();

reader.close();

process.getOutputStream().close(); // 不要忘记了一定要关

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

windows cmd 命令

后台运行

start /b 程序名字

start /b redis-server.exe redis.windows.conf

关闭程序

taskkill /f /t /im 程序名字

taskkill /f /t /im redis-server.exe

查看进程

根据进程名称 查看进程

tasklist|find /i "redis-server.exe"