本文主要实现了扫描指定文件路径下的文件，递归扫描其子目录下的所有文件信息，示例文件为：
要求将后缀为.dat的文件夹信息也写入到数据库中，然后将.chk文件解析，将文件中对应的内容读出来写入到数据库，对应类为ChkFileParseFactroy，本文文件发现代码为：
package com.src.service.impl;
import java.io.File;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.Date;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.src.dao.ChkFileDao;
import com.src.dao.FileDao;
import com.src.dao.impl.ChkFileDaoImpl;
import com.src.dao.impl.FileDaoImpl;
import com.src.factory.ChkFileParseFactroy;
import com.src.service.FoundFileService;
import com.src.util.Config;
import com.src.util.UUIDUtil;
/**
* @ClassName: FoundFileServiceImpl
* @Description: 扫描文件
* @date Aug 24, 2014 1:26:18 AM
*/
public class FoundFileServiceImpl implements FoundFileService {
private static Logger logger = LoggerFactory.getLogger(FoundFileServiceImpl.class);
private static String interDir;
/**
* @Title: foundFile
* @Description: 获取接口文件目录
* @最后修改时间：Aug 24, 2014 1:26:50 AM
*/
public void foundFile() {
interDir = Config.getInstance().interDir;
if (!isExist(interDir)) {
logger.info("The file path " + interDir + " does not exists.");
} else {
logger.info("The current scanning directory: " + interDir);
foundFile(interDir);
}
}
/**
* @Title: foundFile
* @Description: 获取接口文件目录下的文件列表
* @最后修改时间：Aug 24, 2014 1:27:40 AM
* @param rootStr
*/
public void foundFile(String rootStr) {
String host = Config.getInstance().host; // 获取配置文件中的IP地址
File root = new File(rootStr);
File[] file = root.listFiles();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
FileDao fileDao = new FileDaoImpl();
ChkFileDao chkFileDao = new ChkFileDaoImpl();
/** 接口文件变量 */
String id = null; // UUID
String interNo = null; // 接口号
String opTime; // 数据日期
String interFileName; // 源接口文件名
String sourceDir = null; // 源接口文件路径
String fileSize; // 源接口文件大小
String updateTime; // 源接口文件最后修改时间
int status = 6; // 接口文件FTP状态
String loadStatus = ""; // 接口文件Load状态
/** CHK文件变量 */
String totalNum; // 接口记录总数
String chkFileSize; // 接口文件总大小
int chkFileNum = 0; // 接口文件个数
String ftpStatus = ""; // FTP状态
for (File f : file) {
interFileName = f.getName(); // 获取文件名
logger.info("The current scan the file: " + interFileName);
id = UUIDUtil.getUUID(); // 获取ID, Unique
sourceDir = f.getAbsolutePath().toString().replace("\\", "/");
if (interFileName.endsWith(".dat") || interFileName.endsWith(".DAT")) {
updateTime = sdf.format(new Date(f.lastModified())); // 获取接口文件最后修改时间
String interID = interFileName.substring(11, 15); // 获取6位接口号
List<Map<String, String>> list = fileDao.getInterNoByID(interID);
for (Map<String, String> map : list) {
interNo = map.get("FULLINTERCODE");
}
if ("M".equalsIgnoreCase(interNo.substring(0, 1))) {
opTime = interFileName.substring(0, 6);
} else {
opTime = interFileName.substring(0, 8);
}
if (-1 != fileDao.insert(id, interFileName,updateTime, interNo, opTime, sourceDir, host,loadStatus, status)) {
logger.info(" The inter file " + interFileName + " successfully logged into the database.");
} else {
logger.info(" The inter file " + interFileName + " already exists in the database.");
}
}
if (f.isFile()) {
if (interFileName.endsWith(".avl") || interFileName.endsWith(".AVL")) {
fileSize = Long.toString(f.length()); // 获取文件大小
updateTime = sdf.format(new Date(f.lastModified())); // 获取接口文件最后修改时间
interNo = interFileName.substring(0, 6); // 获取6位接口号
opTime = getOpTime(interFileName); // 获取操作时间
if (-1 != fileDao.insert(id, interFileName, updateTime, interNo, opTime, sourceDir, fileSize, host, loadStatus, status)) {
logger.info(" The inter file " + interFileName + " successfully logged into the database.");
} else {
logger.info(" The inter file " + interFileName + " already exists in the database.");
}
} else if (interFileName.endsWith(".chk") || interFileName.endsWith(".CHK")) {
ChkFileParseFactroy chkFileParse = new ChkFileParseFactroy();
Map<String, String> chkFileMap = new LinkedHashMap<String, String>();
chkFileMap = chkFileParse.fileParsing(f);
opTime = getOpTime(interFileName); // 获取操作时间
updateTime = sdf.format(new Date()); // 获取更新时间：系统当前时间
interNo = interFileName.substring(0, 6);
chkFileNum = Integer.valueOf(chkFileMap.get("fileNum"));
totalNum = chkFileMap.get("totalNum");
chkFileSize = chkFileMap.get("fileSize");
/**
* 根据interNo和opTime字段判断表中是否存在该记录
*/
if (!chkFileDao.query(interNo, opTime)) {
chkFileDao.insert(id, interNo, opTime, chkFileNum, totalNum, chkFileSize, sourceDir, updateTime, ftpStatus, loadStatus);
logger.info(" The CHK file " + interFileName + " successfully logged into the database.");
} else {
logger.info(" The CHK file " + interFileName + " already exists in the database.");
}
} else {
logger.info("The file " + interFileName + " is illegal, pass it.");
}
} else if (f.isDirectory()) {
foundFile(f.toString());
}
}
}
/**
* @Title: isExist
* @Description: 判断文件目录是否存在
* @最后修改时间：Aug 28, 2014 10:54:13 AM
* @param filePath
* @return boolean 返回类型
*/
public static boolean isExist(String filePath) {
boolean exists = true;
File file = new File(filePath);
if (!file.exists()) {
exists = false;
}
return exists;
}
/**
*
* @Title: unifiedSeparator
* @Description: 获取文件路径，统一格式全部都以分隔符结束
* @最后修改时间：Aug 31, 2014 12:59:54 AM
* @param interDirectory
* @return String 返回类型
*/
public static String unifiedSeparator(String interDirectory) {
String separator = "/";
if (interDirectory.endsWith(separator)) {
return interDirectory;
} else {
return interDirectory + separator;
}
}
/**
* @Title: getOpTime
* @Description: 判断是日接口还是月接口，并获取相应的日期;
* 月接口：例M24289201408231155 非月接口：A/I/P，I0606920140820230045
* @最后修改时间：Aug 31, 2014 1:00:16 AM
* @param interDirectory
* @return String 返回类型
*/
public static String getOpTime(String interDirectory) {
String opTimeString = null;
try {
if ("M".equalsIgnoreCase(interDirectory.substring(0, 1))) {
opTimeString = interDirectory.substring(6, 12);
} else {
opTimeString = interDirectory.substring(6, 14);
}
} catch (Exception e) {
logger.info("Failure to obtain the operating time: "
+ e.getMessage());
}
return opTimeString;
}
}示例演示存储为：
.dat后缀的文件夹和.avl文件存到inter_file_log表中：
.chk文件存到inter_log表中：
本文出自 “Forever Love” 博客，请务必保留此出处http://dwf07223.blog.51cto.com/8712758/1562878
Java扫描指定文件路径下的文件并且递归扫描其子目录下的所有文件
原文地址：http://dwf07223.blog.51cto.com/8712758/1562878
