Java 执行系统命令工具类（commons-exec）

短命女 2023-06-19 12:27 34阅读 0赞

#### 坐标 ####

<dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-exec</artifactId>
                <version>1.3</version>
            </dependency>

[其他版本：https://mvnrepository.com/artifact/org.apache.commons/commons-exec][https_mvnrepository.com_artifact_org.apache.commons_commons-exec]

#### 工具类 ####

package com.example.demo.exec;
    
    import org.apache.commons.exec.*;
    import org.apache.commons.lang3.exception.ExceptionUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.io.ByteArrayOutputStream;
    import java.io.IOException;
    import java.io.OutputStream;
    
    /** * 执行系统命令工具类 * * @author https://blog.csdn.net/chen_2890 */
    public class CommandUtil { 
    
        private static Logger logger = LoggerFactory.getLogger(CommandUtil.class.getSimpleName());
        private static final String DEFAULT_CHARSET = "UTF-8";
        private static final Long TIMEOUT = 10000L;
    
        /** * 执行指定命令 * * @param command 命令 * @return 命令执行完成返回结果 * @throws RuntimeException 失败时抛出异常，由调用者捕获处理 */
        public synchronized static String exeCommand(String command) throws RuntimeException { 
            try (ByteArrayOutputStream out = new ByteArrayOutputStream()) { 
                int exitCode = exeCommand(command, out);
                if (exitCode == 0) { 
                    logger.info("命令运行成功:" + System.currentTimeMillis());
                } else { 
                    logger.info("命令运行失败:" + System.currentTimeMillis());
                }
                return out.toString(DEFAULT_CHARSET);
            } catch (Exception e) { 
                logger.info(ExceptionUtils.getStackTrace(e));
                throw new RuntimeException(ExceptionUtils.getStackTrace(e));
            }
        }
    
        /** * 执行指定命令，输出结果到指定输出流中 * * @param command 命令 * @param out 执行结果输出流 * @return 执行结果状态码：执行成功返回0 * @throws ExecuteException 失败时抛出异常，由调用者捕获处理 * @throws IOException 失败时抛出异常，由调用者捕获处理 */
        public synchronized static int exeCommand(String command, OutputStream out) throws ExecuteException, IOException { 
            CommandLine commandLine = CommandLine.parse(command);
            PumpStreamHandler pumpStreamHandler = null;
            if (null == out) { 
                pumpStreamHandler = new PumpStreamHandler();
            } else { 
                pumpStreamHandler = new PumpStreamHandler(out);
            }
            // 设置超时时间为10秒
            ExecuteWatchdog watchdog = new ExecuteWatchdog(TIMEOUT);
            DefaultExecutor executor = new DefaultExecutor();
            executor.setStreamHandler(pumpStreamHandler);
            executor.setWatchdog(watchdog);
            return executor.execute(commandLine);
        }
    
        public static void main(String[] args) { 
            logger.info(exeCommand("pwd"));
            logger.info(exeCommand("ls"));
        }
    
    }

原来微信打赏还可以备注哦

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5fMjg5MA_size_16_color_FFFFFF_t_70_pic_center]

[https_mvnrepository.com_artifact_org.apache.commons_commons-exec]: https://mvnrepository.com/artifact/org.apache.commons/commons-exec
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5fMjg5MA_size_16_color_FFFFFF_t_70_pic_center]: https://img-blog.csdnimg.cn/20200325152812680.jpeg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5fMjg5MA==,size_16,color_FFFFFF,t_70#pic_center