1 package org.zln.module1.demo1;
 2
 3 import org.apache.log4j.Logger;
 4
 5 import java.io.File;
 6 import java.io.IOException;
 7
 8 /**
 9  * Created by coolkid on 2015/6/12 0012.
10  */
11 public class CreateFileInEmptyDir {
12     protected static Logger logger = Logger.getLogger(CreateFileInEmptyDir.class);
13
14     private static final String createFlag = "create";
15     private static final String fillFileName = "填充文件.txt";
16
17     public static void main(String[] args) throws IOException {
18         String rootDir;
19         String delFlag;
20         if (null == args||args.length != 2){
21             throw new RuntimeException("输入参数个数不正确");
22         }else {
23             rootDir = args[0];
24             delFlag = args[1];
25         }
26         logger.debug("对目录："+rootDir+" 进行"+(createFlag.equals(delFlag)?"创建":"删除"));
27         File rootFile = new File(rootDir);
28         if (createFlag.equals(delFlag)){//默认创建
29             createFileInEmptyDir(rootFile);
30         }else {//删除
31             deleteFillFile(rootFile);
32         }
33     }
34
35     /**
36      * 在跟路径下,遍历所有的目录,如果该目录为空,则创建一个文件
37      * @param rootFile 根目录文件
38      */
39     private static void createFileInEmptyDir(File rootFile) throws IOException {
40         if (rootFile.isDirectory()){
41             File[] listFiles = rootFile.listFiles();
42             if (0 == listFiles.length){
43                 createTxtFile(rootFile,fillFileName);
44                 logger.debug(rootFile.getAbsolutePath()+"\t为空目录,创建填充文件");
45
46             }else {
47                 for (int i = 0; i < listFiles.length; i++) {
48                     createFileInEmptyDir(listFiles[i]);
49                 }
50             }
51         }
52     }
53
54     private static void createTxtFile(File rootFile,String fileName) throws IOException {
55         File newFile = new File(rootFile,fileName);
56         newFile.createNewFile();
57     }
58
59     /**
60      * 删除指定目录下的填充文件
61      * @param root
62      */
63     private static void deleteFillFile(File root){
64         if (root.isDirectory()){//是目录
65             File[] files = root.listFiles();
66             for (File tempFile:files){
67                 deleteFillFile(tempFile);
68             }
69         }else {//是文件
70             String fileName = root.getName();
71             if (fillFileName.equals(fileName)){
72                 logger.debug("删除:"+root.getAbsolutePath());
73                 root.delete();
74             }
75         }
76     }
77 }

#进入执行目录 - 程序根目录
cd E:\GitHub\tools\JavaEEDevelop\out\production\Lesson1_JavaSe_Demo1#设置class路径
set CLASSSERVER_HOME=E:\GitHub\tools\JavaEEDevelop\GlobalLibset CLASSPATH=.set CLASSPATH=%CLASSPATH%;%CLASSSERVER_HOME%\log4j\log4j-1.2.17.jarset CLASSPATH=%CLASSPATH%;%CLASSSERVER_HOME%\log4j\log4j-api-2.2.jarset CLASSPATH=%CLASSPATH%;%CLASSSERVER_HOME%\log4j\log4j-core-2.2.jar#根据需求执行指令
#对指定目录及其子目录的空文件夹创建空文件
java  org.zln.module1.demo1.CreateFileInEmptyDir E:\GitHub\tools\JavaEEDevelop create
#删除创建的空文件
java  org.zln.module1.demo1.CreateFileInEmptyDir E:\GitHub\tools\JavaEEDevelop delete

#
# Log4J Settings for log4j 1.2.x (via jakarta-commons-logging)
#
# The five logging levels used by Log are (in order):
#
#   1. DEBUG (the least serious)
#   2. INFO
#   3. WARN
#   4. ERROR
#   5. FATAL (the most serious)# Set root logger level to WARN and append to stdout
log4j.rootLogger=DEBUG, stdout,FILE
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%d %5p (%c:%L) - %m%n#输出到文件
log4j.appender.FILE=org.apache.log4j.RollingFileAppender
log4j.appender.FILE.Append=true
log4j.appender.FILE.File=D:\\log\\Lesson1_JavaSe_Demo1.log
log4j.appender.FILE.Threshold=DEBUG
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [%5p] - %c -%F(%L) -%m%n
log4j.appender.FILE.MaxFileSize=10MB# Print only messages of level ERROR or above in the package noModule.
log4j.logger.noModule=FATAL# OpenSymphony Stuff
log4j.logger.freemarker=INFO
log4j.logger.com.opensymphony=INFO
log4j.logger.com.opensymphony.xwork2.ognl=ERROR
log4j.logger.org.apache.struts2=WARN
log4j.logger.org.apache.struts2.components=WARN
log4j.logger.org.apache.struts2.dispatcher=WARN
log4j.logger.org.apache.struts2.convention=INFO# Spring Stuff
log4j.logger.org.springframework=WARN

 1 /**
 2      * 创建或删除空文件在指定路径及其子路径下
 3      * @param rootFile 根路径
 4      */
 5     private static void createOrDeleteFile(File rootFile) throws IOException {
 6         if (rootFile.isDirectory()){
 7             File[] listFiles = rootFile.listFiles();
 8             if (0 == listFiles.length){
 9                 createTxtFile(rootFile,fillFileName);
10                 logger.debug(rootFile.getAbsolutePath()+"\t为空目录,创建填充文件");
11             }else if (1 < listFiles.length){
12                 for (File temp:listFiles){
13                     if (temp.isDirectory()){
14                         createOrDeleteFile(temp);
15                     }else {
16                         if (fillFileName.equals(temp.getName())){
17                             logger.debug("填充文件失效，删除:"+temp.getAbsolutePath());
18                             temp.delete();
19                         }
20                     }
21                 }
22             }
23         }
24     }