Java版的Shell程序
来源:互联网 发布:合众思壮怎么样知乎 编辑:程序博客网 时间:2024/06/05 14:58
如果你接触过windows操作系统,你应该对windows中的cmd有一定的了解。
如果你接触过Linux操作系统,你应该对Linux的shell有一定的了解。
本文说的正是linux中的shell。不过这个是我用java编程实现的“shell”。
现在的功能有三个:
1.扫描文件(过滤文件),如:“c:\\ gif”,命令是在C盘下面,查找后缀是.gif的文件,并且打印到控制台上。
2.命令:“cd c:\\users”,把路径“c:\\users"下面的所有文件打印出来,并且进行统计。
3.命令:“exit”,退出系统。
先来看看项目的结构:
运行的效果:
one:
two:
three:
====================================================
Original Source Part!
Description:
I use the static proxy design pattern in this java project.When the user input
content in the console,then the system will monitoring and get the content,and
process it quickly.
The original source as following:
====================================================
/scanFiles/src/com/b510/scanFiles/dao/ScanFiles.java
/** * */package com.b510.scanFiles.dao;/** * the interface for the Scan Files * @author Hongten * @created Feb 12, 2014 */public interface ScanFiles { public int scan(String[] inputs); public void handleCD(String[] inputs); public void scanFiles(String[] inputs);}
/scanFiles/src/com/b510/scanFiles/dao/impl/ScanDelegate.java
/** * */package com.b510.scanFiles.dao.impl;import java.io.File;import com.b510.scanFiles.dao.ScanFiles;import com.b510.scanFiles.utils.CommonUtil;import com.b510.scanFiles.utils.PrintUtil;/** * the Delegate for the Scan Files. * @author Hongten * @created Feb 12, 2014 */public class ScanDelegate implements ScanFiles, Runnable { @SuppressWarnings("unused") private String[] inputs; private String path; private String suffix; private int targetCount; private int folderCount; private long startTime; public ScanDelegate(String[] inputs) { this.inputs = inputs; } public ScanDelegate(String path, String suffix) { this.path = path; this.suffix = suffix; } public void scanFiles(String[] inputs) { ScanDelegate delegate = new ScanDelegate(inputs[0], inputs[1]); new Thread(delegate).start(); } /** * scan the file(s) from the path,that user give.and return the count of the file(s). */ public int scan(String[] inputs) { int fileCount = 0; File file = new File(inputs[0]); if (!file.exists()) { PrintUtil.printInfo(CommonUtil.INCORRECT_PATH); } else { File[] subFile = file.listFiles(); if (null == subFile || subFile.length == 0) { return fileCount; } for (int i = 0; i < subFile.length; i++) { if (subFile[i].isDirectory()) { folderCount++; fileCount += scan(new String[] { subFile[i].getAbsolutePath() }); } else if (subFile[i].isFile()) { if (getPostfix(subFile[i].getName()).equalsIgnoreCase(suffix)) { PrintUtil.printInfo(CommonUtil.FIND_FILE + subFile[i].getAbsolutePath()); targetCount++; } fileCount++; } } } return fileCount; } public void run() { startTime = System.currentTimeMillis(); int num = scan(new String[] { path }); printResult(num); } private void printResult(int num) { PrintUtil.printInfo(CommonUtil.BOUNDARY); PrintUtil.printInfo(CommonUtil.LEFT_BLANKETS + path + CommonUtil.CONTAINS); PrintUtil.printInfo(CommonUtil.FOLDERS + folderCount); PrintUtil.printInfo(CommonUtil.FILES + num); PrintUtil.printInfo(CommonUtil.TARGET + suffix + CommonUtil.TARGET_FILES + targetCount); PrintUtil.printInfo(CommonUtil.BOUNDARY); long entTime = System.currentTimeMillis(); PrintUtil.printInfo(CommonUtil.SPEND + (entTime - startTime) + CommonUtil.MS); } /** * handle the situation,e.g: "cd e:\" */ public void handleCD(String[] inputs) { File file = new File(inputs[1]); if (!file.exists()) { PrintUtil.printInfo(CommonUtil.INCORRECT_PATH); } else { File[] listFiles = file.listFiles(); for (int i = 0; i < listFiles.length; i++) { PrintUtil.printInfo(listFiles[i].getName()); } PrintUtil.printInfo(CommonUtil.BOUNDARY + "\n"+ CommonUtil.TOTAL + listFiles.length); } } /** * get the suffix of a string,e.g : "test.txt"<br> * and return the string is "txt". * @param inputFilePath * @return */ public String getPostfix(String inputFilePath) { return inputFilePath.substring(inputFilePath.lastIndexOf(CommonUtil.POINT) + 1); }}
/scanFiles/src/com/b510/scanFiles/dao/impl/ScanProxy.java
/** * */package com.b510.scanFiles.dao.impl;import com.b510.scanFiles.dao.ScanFiles;import com.b510.scanFiles.utils.CommonUtil;import com.b510.scanFiles.utils.PrintUtil;/** * @author Hongten * @created Feb 12, 2014 */public class ScanProxy implements ScanFiles { private ScanFiles scanDelegate; public ScanProxy(ScanFiles scanDelegate) { this.scanDelegate = scanDelegate; } public int scan(String[] inputs) { scanFiles(inputs); return 0; } public void handleCD(String[] inputs) { PrintUtil.printInfo(CommonUtil.BOUNDARY); long startTime = System.currentTimeMillis(); scanDelegate.handleCD(inputs); long entTime = System.currentTimeMillis(); PrintUtil.printInfo(CommonUtil.BOUNDARY); PrintUtil.printInfo(CommonUtil.SPEND + (entTime - startTime) + CommonUtil.MS); } public void scanFiles(String[] inputs) { scanDelegate.scanFiles(inputs); }}
/scanFiles/src/com/b510/scanFiles/factory/ScanFilesFactory.java
/** * */package com.b510.scanFiles.factory;import com.b510.scanFiles.dao.ScanFiles;import com.b510.scanFiles.dao.impl.ScanDelegate;import com.b510.scanFiles.dao.impl.ScanProxy;/** * The factory of the static proxy * @author Hongten * @created Feb 12, 2014 */public class ScanFilesFactory { public static ScanFiles getInstance(String[] inputs){ return new ScanProxy(new ScanDelegate(inputs)); }}
/scanFiles/src/com/b510/scanFiles/utils/CommonUtil.java
/** * */package com.b510.scanFiles.utils;/** * @author Hongten * @created Feb 12, 2014 */public class CommonUtil { public static final String DESCRIPTION = "Please input as this format :\n[C:\\ png] or [cd C:\\]"; public static final String EXIT_SYSTEM = "exited system."; public static final String INCORRECT_PATH = "Incorrect path!"; public static final String INCORRECT_INPUT_FORMAT = "Incorrect input format!"; public static final String CD = "cd"; public static final String BLANK = " "; public static final String EXIT = "exit"; public static final String POINT = "."; public static final String BOUNDARY = "======================================"; public static final String LEFT_BLANKETS = "["; public static final String CONTAINS = "] contains :"; public static final String FOLDERS = "folder(s) : "; public static final String FILES = "file(s) : "; public static final String TARGET = "target ["; public static final String TARGET_FILES = "] file(s) : "; public static final String SPEND = "Spend :["; public static final String FIND_FILE = "Find file : "; public static final String MS = "]ms"; public static final String TOTAL = "Total :"; public static final int TWO = 2;}
/scanFiles/src/com/b510/scanFiles/utils/PrintUtil.java
/** * */package com.b510.scanFiles.utils;/** * @author Hongten * @created Feb 12, 2014 */public class PrintUtil { public static void printInfo(String info) { System.out.println(info); } public static void printInfo(StringBuffer info) { System.out.println(info); } public static void printInfo(char info) { System.out.println(info); }}
/scanFiles/src/com/b510/scanFiles/client/Client.java
/** * */package com.b510.scanFiles.client;import java.util.Scanner;import com.b510.scanFiles.dao.ScanFiles;import com.b510.scanFiles.factory.ScanFilesFactory;import com.b510.scanFiles.utils.CommonUtil;import com.b510.scanFiles.utils.PrintUtil;/** * The Client class,User can input some content in the console.<br> * and the system will monitoring the console and get the content and process it. * @author Hongten * @created Feb 12, 2014 */public class Client { private Scanner inputStreamScanner; private boolean controlFlag = false; public static void main(String[] args) { Client client = new Client(); client.monitoringConsoleAndHandleContent(); } public Client() { inputStreamScanner = new Scanner(System.in); } /** * This is a monitor,which can monitoring the console and handle the input content. */ public void monitoringConsoleAndHandleContent() { PrintUtil.printInfo(CommonUtil.DESCRIPTION); try { while (!controlFlag && inputStreamScanner.hasNext()) { processingConsoleInput(); } } catch (Exception e) { e.printStackTrace(); } finally { closeScanner(); } } private void closeScanner() { inputStreamScanner.close(); } /** * Processing the content that user inputed. */ private void processingConsoleInput() { String inputContent = inputStreamScanner.nextLine(); if (!inputContent.isEmpty()) { controlFlag = exit(inputContent); if (!controlFlag) { notExit(inputContent); } } } /** * When the user input the keyword <code>"exit"</code>(ignore case),then the system will be exit. * @param inputContent */ private boolean exit(String inputContent) { if (CommonUtil.EXIT.equalsIgnoreCase(inputContent)) { controlFlag = true; systemExit(); } return controlFlag; } /** * System.exit(0); */ private void systemExit() { PrintUtil.printInfo(CommonUtil.EXIT_SYSTEM); System.exit(0); } /** * different with the method "exit()" * @param inputContent */ private void notExit(String inputContent) { String[] inputs = inputContent.split(CommonUtil.BLANK); if (null != inputs && inputs.length >= CommonUtil.TWO) { //the factory of the proxy ScanFiles factory = ScanFilesFactory.getInstance(inputs); if (CommonUtil.CD.equalsIgnoreCase(inputs[0])) { factory.handleCD(inputs); } else { factory.scan(inputs); } } else { PrintUtil.printInfo(CommonUtil.INCORRECT_INPUT_FORMAT); } }}
===========================================
Original Source Doaload: http://files.cnblogs.com/hongten/scanFiles.zip
===========================================
- Java版的Shell程序
- jprofiler 监控java程序的shell脚本
- jprofiler 监控java程序的shell脚本
- 一个启动Java程序的shell脚本
- shell启动java程序
- 一个用shell写的执行java程序的脚本
- 简单的shell程序
- linux下运行java程序的shell脚本
- linux下shell对java程序的管理
- Java程序调用带参数的shell脚本返回值
- windows Linux下Java程序的启动Shell脚本
- linux的shell命令检测某个java程序是否执行
- 【Shell】 Linux下启动java程序的通用脚本sh
- Java程序调用带参数的shell脚本返回值
- shell脚本运行java程序
- 用Shell 执行java 程序
- shell 执行java 程序 sendkeyevents
- Android shell 启动java程序
- 卡尔曼滤波_1
- 轮询调度算法(Round-Robin Scheduling) 和 权重轮询调度算法(Weighted Round-Robin Scheduling)
- 科学收集并分析Android用户敏感信息实战
- block知识点回顾
- Android 内存泄漏总结
- Java版的Shell程序
- Spring启动后获取所有拥有特定注解的Bean
- 并查集详解
- POJ-2513 Colored Sticks
- C - Saruman's Army
- POJ 1436 Horizontally Visible Segments 简单hash+区间更新
- 取模(mod)与取余(rem)的区别
- 深入理解Android之AOP
- Glide 使用心得-看视频收藏的图片