项目经验分享——Java常用工具类集合
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写在前面 本文涉及的工具类部分是自己编写，另一部分是在项目里收集的。工具类涉及数据库连接、格式转换、文件操作、发送邮件等等。提高开发效率，欢迎收藏与转载。 数据库连接工具类 数据库连接工具类——仅仅获得连接对象 ConnDB.java[java] view plain copy package com.util; import java.sql.Connection; import java.sql.DriverManager; /** * 数据库连接工具类——仅仅获得连接对象 * */ public class ConnDB { private static Connection conn = null; private static final String DRIVER_NAME = "com.mysql.jdbc.Driver"; private static final String URL = "jdbc:mysql://localhost:3306/axt?useUnicode=true&characterEncoding=UTF-8"; private static final String USER_NAME = "root"; private static final String PASSWORD = "root"; public static Connection getConn(){ try { Class.forName(DRIVER_NAME); conn = DriverManager.getConnection(URL, USER_NAME, PASSWORD); } catch (Exception e) { e.printStackTrace(); } return conn; } } 数据库连接工具类——包含取得连接和关闭资源 ConnUtil.java [java] view plain copy package com.util; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; /** * @className: ConnUtil.java * @classDescription: 数据库连接工具类——包含取得连接和关闭资源 * @function: * @author: Wentasy * @createTime: 2012-9-24 上午11:51:15 * @modifyTime: * @modifyReason: * @since: JDK 1.6 */ public class ConnUtil { public static final String url = "jdbc:mysql://XXX.XXX.XXX.XXX:3306/dbadapter"; public static final String user = "root"; public static final String password = "XXXXXX"; /** * 得到连接 * @return * @throws SQLException * @throws ClassNotFoundException */ public static Connection establishConn() throws SQLException,ClassNotFoundException{ Class.forName("com.mysql.jdbc.Driver"); return DriverManager.getConnection(url, user, password); } /** * 关闭连接 * @param conn * @throws SQLException */ public static void close(Connection conn) throws SQLException{ if(conn != null){ conn.close(); conn = null; } } /** * 关闭PreparedStatement * @param pstmt * @throws SQLException */ public static void close(PreparedStatement pstmt) throws SQLException{ if(pstmt != null){ pstmt.close(); pstmt = null; } } /** * 关闭结果集 * @param rs * @throws SQLException */ public static void close(ResultSet rs) throws SQLException{ if(rs != null){ rs.close(); rs = null; } } } 格式转换工具类 日期转换工具类 CommUtil.java[java] view plain copy package com.util; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; /** * 日期转换工具类 */ public class CommUtil { /** * 将日期格式转换成yyyy-MM-dd的字符串格式 * 返回值如：2010-10-06 * @param time 要转换的日期 * @return */ public static String dateToString(Date time) { SimpleDateFormat formatter = new SimpleDateFormat ("yyyy-MM-dd"); //定义将日期格式要换成的格式 String stringTime = formatter.format(time); return stringTime; } /** * 将日期格式转换成yyyyMMdd的字符串格式 * 返回值如：2010-10-06 * @param time 要转换的日期 * @return */ public static String dateTimeToString(Date time) { SimpleDateFormat formatter = new SimpleDateFormat ("yyyyMMdd"); //定义将日期格式要换成的格式 String stringTime = formatter.format(time); return stringTime; } /** * 将日期格式转换成yyyy-MM-dd的字符串格式 * 返回值如：2010-10-06 * @param time 要转换的日期 * @return */ public static Date dateToDate(Date time) { SimpleDateFormat formatter = new SimpleDateFormat ("yyyy-MM-dd"); //定义将日期格式要换成的格式 String stringTime = formatter.format(time); Date date = null; try { date = formatter.parse(stringTime); } catch (ParseException e) { e.printStackTrace(); } return date; } /** * 得到当前时间，以字符串表示 * @return */ public static String getDate(){ Date date = new Date(); return CommUtil.dateToString(date); } } 日期转换类 DateConverter.java[java] view plain copy package com.util; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Map; import com.opensymphony.xwork2.conversion.impl.DefaultTypeConverter; /** * 日期转换类 * */ public class DateConverter extends DefaultTypeConverter { private static final DateFormat[] ACCEPT_DATE_FORMATS = { new SimpleDateFormat("dd/MM/yyyy"), new SimpleDateFormat("yyyy-MM-dd"), new SimpleDateFormat("yyyy/MM/dd") }; //支持转换的日期格式 @Override public Object convertValue(Map context, Object value, Class toType) { if (toType == Date.class) { //浏览器向服务器提交时，进行String to Date的转换 Date date = null; String dateString = null; String[] params = (String[])value; dateString = params[0];//获取日期的字符串 for (DateFormat format : ACCEPT_DATE_FORMATS) { try { return format.parse(dateString);//遍历日期支持格式，进行转换 } catch(Exception e) { continue; } } return null; } else if (toType == String.class) { //服务器向浏览器输出时，进行Date to String的类型转换 Date date = (Date)value; return new SimpleDateFormat("yyyy-MM-dd").format(date);//输出的格式是yyyy-MM-dd } return null; } } 功能更强大的格式化工具类 FormatUtils.java [java] view plain copy package com.util; import java.text.DecimalFormat; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; /** * 功能更强大的格式化工具类 */ public class FormatUtils { private static SimpleDateFormat second = new SimpleDateFormat( "yy-MM-dd hh:mm:ss"); private static SimpleDateFormat day = new SimpleDateFormat("yyyy-MM-dd"); private static SimpleDateFormat detailDay = new SimpleDateFormat("yyyy年MM月dd日"); private static SimpleDateFormat fileName = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss"); private static SimpleDateFormat tempTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); private static SimpleDateFormat excelDate = new SimpleDateFormat("yyyy/MM/dd"); /** * 格式化excel中的时间 * @param date * @return */ public static String formatDateForExcelDate(Date date) { return excelDate.format(date); } /** * 将日期格式化作为文件名 * @param date * @return */ public static String formatDateForFileName(Date date) { return fileName.format(date); } /** * 格式化日期(精确到秒) * * @param date * @return */ public static String formatDateSecond(Date date) { return second.format(date); } /** * 格式化日期(精确到秒) * * @param date * @return */ public static String tempDateSecond(Date date) { return tempTime.format(date); } public static Date tempDateSecond(String str) { try { return tempTime.parse(str); } catch (ParseException e) { e.printStackTrace(); } return new Date(); } /** * 格式化日期(精确到天) * * @param date * @return */ public static String formatDateDay(Date date) { return day.format(date); } /** * 格式化日期(精确到天) * * @param date * @return */ public static String formatDateDetailDay(Date date) { return detailDay.format(date); } /** * 将double类型的数字保留两位小数（四舍五入） * * @param number * @return */ public static String formatNumber(double number) { DecimalFormat df = new DecimalFormat(); df.applyPattern("#0.00"); return df.format(number); } /** * 将字符串转换成日期 * * @param date * @return * @throws Exception */ public static Date formateDate(String date) throws Exception { return day.parse(date); } /** * 将字符日期转换成Date * @param date * @return * @throws Exception */ public static Date parseStringToDate(String date) throws Exception { return day.parse(date); } public static String formatDoubleNumber(double number) { DecimalFormat df = new DecimalFormat("#"); return df.format(number); } } 文件操作工具类 目录操作工具类 CopyDir.java[java] view plain copy package com.util; import java.io.*; /** * 1,建立目的目录。 2，遍历源目录。 3，遍历过程中，创建文件或者文件夹。 原理：其实就是改变了源文件或者目录的目录头。 * @datetime Dsc 24 */ public class CopyDir { private File sDir, dDir, newDir; public CopyDir(String s, String d) { this(new File(s), new File(d)); } CopyDir(File sDir, File dDir)// c:\\Test d:\\abc { this.sDir = sDir; this.dDir = dDir; } public void copyDir() throws IOException { // 是创建目的目录。也就是创建要拷贝的源文件夹。Test // 获取源文件夹名称。 String name = sDir.getName(); // 通过该名称在目的目录创建该文件夹，为了存放源文件夹中的文件或者文件夹。 // 将目的目录和源文件夹名称，封装成File对象。 newDir = dDir; // new File(dDir,name); // 调用该对象的mkdir方法。在目的目录创建该文件夹。d:\\abc\\Test newDir.mkdir();// // 遍历源文件夹。 listAll(sDir); } /* * 将遍历目录封装成方法。 在遍历过程中，遇到文件创建文件。 遇到目录创建目录。 */ private void listAll(File dir) throws IOException { File[] files = dir.listFiles(); for (int x = 0; x < files.length; x++) { if (files[x].isDirectory()) { createDir(files[x]);// 调用创建目录的方法。 listAll(files[x]);// 在继续进行递归。进入子级目录。 } else { createFile(files[x]);// 调用创建文件的方法。 } } } /* * copy目录。通过源目录在目的目录创建新目录。 */ private void createDir(File dir) { File d = replaceFile(dir); d.mkdir(); } /* * copy文件。 */ private void createFile(File file) throws IOException { File newFile = replaceFile(file); // copy文件是一个数据数据传输的过程。需要通过流来完成。 FileInputStream fis = new FileInputStream(file); FileOutputStream fos = new FileOutputStream(newFile); byte[] buf = new byte[1024 * 2]; int num = 0; while ((num = fis.read(buf)) != -1) { fos.write(buf, 0, num); } fos.close(); fis.close(); } /* * 替换路径。 */ private File replaceFile(File f) { // 原理是：将源目录的父目录(C:\\Tset)，替换成目的父目录。（d:\\abc\\Test） String path = f.getAbsolutePath();// 获取源文件或者文件夹的决定路径。 // 将源文件或者文件夹的绝对路径替换成目的路径。 String newPath = path.replace(sDir.getAbsolutePath(), newDir .getAbsolutePath()); // 将新的目的路径封装成File对象 File newFile = new File(newPath); return newFile; } } 文件/目录部分处理工具类 DealDir.java[java] view plain copy package com.util; import java.io.File; import java.util.StringTokenizer; /** * 文件/目录 部分处理 * @createTime Dec 25, 2010 7:06:58 AM * @version 1.0 */ public class DealDir { /** * 获取文件的后缀名并转化成大写 * * @param fileName * 文件名 * @return */ public String getFileSuffix(String fileName) throws Exception { return fileName.substring(fileName.lastIndexOf(".") + 1, fileName.length()).toUpperCase(); } /** * 创建多级目录 * * @param path * 目录的绝对路径 */ public void createMultilevelDir(String path) { try { StringTokenizer st = new StringTokenizer(path, "/"); String path1 = st.nextToken() + "/"; String path2 = path1; while (st.hasMoreTokens()) { path1 = st.nextToken() + "/"; path2 += path1; File inbox = new File(path2); if (!inbox.exists()) inbox.mkdir(); } } catch (Exception e) { System.out.println("目录创建失败" + e); e.printStackTrace(); } } /** * 删除文件/目录(递归删除文件/目录) * * @param path * 文件或文件夹的绝对路径 */ public void deleteAll(String dirpath) { if (dirpath == null) { System.out.println("目录为空"); } else { File path = new File(dirpath); try { if (!path.exists()) return;// 目录不存在退出 if (path.isFile()) // 如果是文件删除 { path.delete(); return; } File[] files = path.listFiles();// 如果目录中有文件递归删除文件 for (int i = 0; i < files.length; i++) { deleteAll(files[i].getAbsolutePath()); } path.delete(); } catch (Exception e) { System.out.println("文件/目录 删除失败" + e); e.printStackTrace(); } } } /** * 文件/目录 重命名 * * @param oldPath * 原有路径（绝对路径） * @param newPath * 更新路径 * @author lyf 注：不能修改上层次的目录 */ public void renameDir(String oldPath, String newPath) { File oldFile = new File(oldPath);// 文件或目录 File newFile = new File(newPath);// 文件或目录 try { boolean success = oldFile.renameTo(newFile);// 重命名 if (!success) { System.out.println("重命名失败"); } else { System.out.println("重命名成功"); } } catch (RuntimeException e) { e.printStackTrace(); } } } 目录处理工具类 DealWithDir.java[java] view plain copy package com.util; import java.io.File; /** * 目录处理工具类 * */ public class DealWithDir { /** * 新建目录 */ public static boolean newDir(String path) throws Exception { File file = new File(path); return file.mkdirs();//创建目录 } /** * 删除目录 */ public static boolean deleteDir(String path) throws Exception { File file = new File(path); if (!file.exists()) return false;// 目录不存在退出 if (file.isFile()) // 如果是文件删除 { file.delete(); return false; } File[] files = file.listFiles();// 如果目录中有文件递归删除文件 for (int i = 0; i < files.length; i++) { deleteDir(files[i].getAbsolutePath()); } file.delete(); return file.delete();//删除目录 } /** * 更新目录 */ public static boolean updateDir(String path, String newPath) throws Exception { File file = new File(path); File newFile = new File(newPath); return file.renameTo(newFile); } public static void main(String d[]) throws Exception{ //deleteDir("d:/ff/dddf"); updateDir("D:\\TOOLS\\Tomcat 6.0\\webapps\\BCCCSM\\nationalExperiment/22222", "D:\\TOOLS\\Tomcat 6.0\\webapps\\BCCCSM\\nationalExperiment/224222"); } } 删除文件夹工具类 DeleteFolder.java [java] view plain copy package com.util; import java.io.File; /** * 删除文件夹 * @createTime DSC 20, 2010 15:38 * @version 2.0 */ public class DeleteFolder { // 删除文件夹 // param folderPath 文件夹完整绝对路径 public static void delFolder(String folderPath) { try { delAllFile(folderPath); // 删除完里面所有内容 String filePath = folderPath; filePath = filePath.toString(); java.io.File myFilePath = new java.io.File(filePath); myFilePath.delete(); // 删除空文件夹 } catch (Exception e) { e.printStackTrace(); } } // 删除指定文件夹下所有文件 // param path 文件夹完整绝对路径 public static boolean delAllFile(String path) { boolean flag = false; File file = new File(path); if (!file.exists()) { return flag; } if (!file.isDirectory()) { return flag; } String[] tempList = file.list(); File temp = null; for (int i = 0; i < tempList.length; i++) { if (path.endsWith(File.separator)) { temp = new File(path + tempList[i]); } else { temp = new File(path + File.separator + tempList[i]); } if (temp.isFile()) { temp.delete(); } if (temp.isDirectory()) { delAllFile(path + "/" + tempList[i]);// 先删除文件夹里面的文件 delFolder(path + "/" + tempList[i]);// 再删除空文件夹 flag = true; } } return flag; } } 文件上传工具类 UploadUtil.java[java] view plain copy package com.util; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.util.Calendar; /** * 文件上传工具类 * */ public class UploadUtil { private static final int BUFFER_SIZE = 16 * 1024; //保存图片 public static synchronized void copy(File src, File newFile) { try { InputStream is = null; OutputStream os = null; try { is = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE); os = new BufferedOutputStream(new FileOutputStream(newFile), BUFFER_SIZE); byte[] buffer = new byte[BUFFER_SIZE]; while (is.read(buffer) > 0) { os.write(buffer); } } finally { if (null != is) { is.close(); } if (null != os) { os.close(); } } } catch (Exception e) { e.printStackTrace(); } } /** * 返回 年号+月号+天+时+分+秒+随机码 * @return */ @SuppressWarnings("static-access") public static synchronized String getTime() { Calendar calendar = Calendar.getInstance(); String year = calendar.get(calendar.YEAR) + ""; String month = (calendar.get(calendar.MONTH) + 1) + ""; String day = calendar.get(calendar.DAY_OF_MONTH) + ""; String hour = calendar.get(calendar.HOUR_OF_DAY) + ""; String minute = calendar.get(calendar.MINUTE) + ""; String second = calendar.get(calendar.SECOND) + ""; String milliSecond = calendar.get(calendar.MILLISECOND) + ""; int r = (int)(Math.random()*100000); String random = String.valueOf(r); return year + month + day + hour + minute + second + milliSecond + random+"a"; } } 其他工具类MD5编码工具类 MD5Code.java[java] view plain copy package com.util; /** * MD5编码工具类 * */ public class MD5Code { static final int S11 = 7; static final int S12 = 12; static final int S13 = 17; static final int S14 = 22; static final int S21 = 5; static final int S22 = 9; static final int S23 = 14; static final int S24 = 20; static final int S31 = 4; static final int S32 = 11; static final int S33 = 16; static final int S34 = 23; static final int S41 = 6; static final int S42 = 10; static final int S43 = 15; static final int S44 = 21; static final byte[] PADDING = { -128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; private long[] state = new long[4];// state (ABCD) private long[] count = new long[2];// number of bits, modulo 2^64 (lsb // first) private byte[] buffer = new byte[64]; // input buffer public String digestHexStr; private byte[] digest = new byte[16]; public String getMD5ofStr(String inbuf) { md5Init(); md5Update(inbuf.getBytes(), inbuf.length()); md5Final(); digestHexStr = ""; for (int i = 0; i < 16; i++) { digestHexStr += byteHEX(digest[i]); } return digestHexStr; } public MD5Code() { md5Init(); return; } private void md5Init() { count[0] = 0L; count[1] = 0L; // /* Load magic initialization constants. state[0] = 0x67452301L; state[1] = 0xefcdab89L; state[2] = 0x98badcfeL; state[3] = 0x10325476L; return; } private long F(long x, long y, long z) { return (x & y) | ((~x) & z); } private long G(long x, long y, long z) { return (x & z) | (y & (~z)); } private long H(long x, long y, long z) { return x ^ y ^ z; } private long I(long x, long y, long z) { return y ^ (x | (~z)); } private long FF(long a, long b, long c, long d, long x, long s, long ac) { a += F(b, c, d) + x + ac; a = ((int) a << s) | ((int) a >>> (32 - s)); a += b; return a; } private long GG(long a, long b, long c, long d, long x, long s, long ac) { a += G(b, c, d) + x + ac; a = ((int) a << s) | ((int) a >>> (32 - s)); a += b; return a; } private long HH(long a, long b, long c, long d, long x, long s, long ac) { a += H(b, c, d) + x + ac; a = ((int) a << s) | ((int) a >>> (32 - s)); a += b; return a; } private long II(long a, long b, long c, long d, long x, long s, long ac) { a += I(b, c, d) + x + ac; a = ((int) a << s) | ((int) a >>> (32 - s)); a += b; return a; } private void md5Update(byte[] inbuf, int inputLen) { int i, index, partLen; byte[] block = new byte[64]; index = (int) (count[0] >>> 3) & 0x3F; // /* Update number of bits */ if ((count[0] += (inputLen << 3)) < (inputLen << 3)) count[1]++; count[1] += (inputLen >>> 29); partLen = 64 - index; // Transform as many times as possible. if (inputLen >= partLen) { md5Memcpy(buffer, inbuf, index, 0, partLen); md5Transform(buffer); for (i = partLen; i + 63 < inputLen; i += 64) { md5Memcpy(block, inbuf, 0, i, 64); md5Transform(block); } index = 0; } else i = 0; // /* Buffer remaining input */ md5Memcpy(buffer, inbuf, index, i, inputLen - i); } private void md5Final() { byte[] bits = new byte[8]; int index, padLen; // /* Save number of bits */ Encode(bits, count, 8); // /* Pad out to 56 mod 64. index = (int) (count[0] >>> 3) & 0x3f; padLen = (index < 56) ? (56 - index) : (120 - index); md5Update(PADDING, padLen); // /* Append length (before padding) */ md5Update(bits, 8); // /* Store state in digest */ Encode(digest, state, 16); } private void md5Memcpy(byte[] output, byte[] input, int outpos, int inpos, int len) { int i; for (i = 0; i < len; i++) output[outpos + i] = input[inpos + i]; } private void md5Transform(byte block[]) { long a = state[0], b = state[1], c = state[2], d = state[3]; long[] x = new long[16]; Decode(x, block, 64); /* Round 1 */ a = FF(a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */ d = FF(d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */ c = FF(c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */ b = FF(b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */ a = FF(a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */ d = FF(d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */ c = FF(c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */ b = FF(b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */ a = FF(a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */ d = FF(d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */ c = FF(c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */ b = FF(b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */ a = FF(a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */ d = FF(d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */ c = FF(c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */ b = FF(b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */ /* Round 2 */ a = GG(a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */ d = GG(d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */ c = GG(c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */ b = GG(b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */ a = GG(a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */ d = GG(d, a, b, c, x[10], S22, 0x2441453L); /* 22 */ c = GG(c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */ b = GG(b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */ a = GG(a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */ d = GG(d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */ c = GG(c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */ b = GG(b, c, d, a, x[8], S24, 0x455a14edL); /* 28 */ a = GG(a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */ d = GG(d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */ c = GG(c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */ b = GG(b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */ /* Round 3 */ a = HH(a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */ d = HH(d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */ c = HH(c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */ b = HH(b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */ a = HH(a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */ d = HH(d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */ c = HH(c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */ b = HH(b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */ a = HH(a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */ d = HH(d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */ c = HH(c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */ b = HH(b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */ a = HH(a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */ d = HH(d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */ c = HH(c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */ b = HH(b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */ /* Round 4 */ a = II(a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */ d = II(d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */ c = II(c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */ b = II(b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */ a = II(a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */ d = II(d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */ c = II(c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */ b = II(b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */ a = II(a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */ d = II(d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */ c = II(c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */ b = II(b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */ a = II(a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */ d = II(d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */ c = II(c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */ b = II(b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */ state[0] += a; state[1] += b; state[2] += c; state[3] += d; } private void Encode(byte[] output, long[] input, int len) { int i, j; for (i = 0, j = 0; j < len; i++, j += 4) { output[j] = (byte) (input[i] & 0xffL); output[j + 1] = (byte) ((input[i] >>> 8) & 0xffL); output[j + 2] = (byte) ((input[i] >>> 16) & 0xffL); output[j + 3] = (byte) ((input[i] >>> 24) & 0xffL); } } private void Decode(long[] output, byte[] input, int len) { int i, j; for (i = 0, j = 0; j < len; i++, j += 4) output[i] = b2iu(input[j]) | (b2iu(input[j + 1]) << 8) | (b2iu(input[j + 2]) << 16) | (b2iu(input[j + 3]) << 24); return; } public static long b2iu(byte b) { return b < 0 ? b & 0x7F + 128 : b; } public static String byteHEX(byte ib) { char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; char[] ob = new char[2]; ob[0] = Digit[(ib >>> 4) & 0X0F]; ob[1] = Digit[ib & 0X0F]; String s = new String(ob); return s; } } 读取Config文件工具类 PropertiesConfig.java[java] view plain copy package com.util; import java.io.BufferedInputStream; import java.io.FileInputStream; import java.io.InputStream; import java.util.Properties; /** * 读取Config文件工具类 * @version 1.0 * @since JDK 1.6 */ public class PropertiesConfig { /** * 获取整个配置文件中的属性 * @param filePath 文件路径，即文件所在包的路径，例如：java/util/config.properties */ public static Properties readData(String filePath) { filePath = getRealPath(filePath); Properties props = new Properties(); try { InputStream in = new BufferedInputStream(new FileInputStream(filePath)); props.load(in); in.close(); return props; } catch (Exception e) { e.printStackTrace(); return null; } } private static String getRealPath(String filePath) { //获取绝对路径 并截掉路径的”file:/“前缀 return PropertiesConfig.class.getResource("/" + filePath).toString().substring(6); } } 自动扫描FTP文件工具类 ScanFtp.java[java] view plain copy package com.util; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; /** * 自动扫描FTP文件工具类 * 需要定时执行 */ public class ScanFtp { //服务器图片路径文件夹 private String serverLocal = "D:/TOOLS/Tomcat 6.0/webapps/BCCCSM/modelforcast/"; //图片上传文件夹存放路径,文件夹内应包含AGCM CSM ZS 3个子文件夹分别存放需要扫描到tomcat中的图片 private String saveLocal = "D:/modelForcast/"; /** * 获得远程权限 * @return */ private void getFTPAdress(){ //登陆成功 } /** * 开始扫描 * @throws IOException */ private void scan() throws IOException { this.getFTPAdress(); File file = new File(saveLocal + "AGCM"); //打开AGCM File[] array = file.listFiles(); String fileName; File fileTemp; for(int i = 0; i < array.length; i++){ if(array[i].isFile()) { fileTemp = array[i]; fileName = fileTemp.getName();//取出文件名 if (!fileName.equals("humbs.db")) { this.saveFile(fileTemp, 1);//分析每一个文件名字并存储 System.out.println(fileName + " saved"); } } } file = new File(saveLocal + "CSM"); //打开CSM array = file.listFiles(); for(int i = 0; i < array.length; i++){ if(array[i].isFile()) { fileTemp = array[i]; fileName = fileTemp.getName();//取出文件名 if (!fileName.equals("humbs.db")) { this.saveFile(fileTemp, 2);//分析每一个文件名字并存储 System.out.println(fileName + " saved"); } } } file = new File(saveLocal + "ZS"); //打开ZS array = file.listFiles(); for(int i = 0; i < array.length; i++){ if(array[i].isFile()) { fileTemp = array[i]; fileName = fileTemp.getName();//取出文件名 if (!fileName.equals("humbs.db")) { this.saveFile(fileTemp, 3);//分析每一个文件名字并存储 System.out.println(fileName + " saved"); } } } } /** * 开始执行 * @throws IOException */ public void execute() throws IOException{ scan();//开始扫描 } /** * 按类型存储 * @param file * @param type * @throws IOException */ private void saveFile(File file, int type) throws IOException { String fileName = file.getName(); //类型A C 和 指数3种 String year = fileName.substring(1, 5);//获得发布年份 String date = fileName.substring(5, 9);//获得发布日期包含月日 String var = null;//获得变量名字 String dir = serverLocal;//存储目录名字 if (type == 1 ) { var = fileName.substring(11, 15); dir = dir + "AGCM/" + var + "/" + year + "/" + date; } else if(type == 2) { var = fileName.substring(11, 15); dir = dir + "CSM/" + var + "/" + year + "/" + date; } else { var = fileName.substring(11, 15);//指数的暂时没处理 dir = dir + "ZS/" + var + "/" + year + "/" + date; } //判断是否存在这样的目录没有就自动创建 File savePath = new File(dir); if(!savePath.exists()) { savePath.mkdirs(); } File saveFile = new File(dir + "/" + fileName); if(!saveFile.exists()){//如果不存在,就存文件 FileInputStream fis = null;//这里用本地复制暂时代替FTP FileOutputStream fos =null; BufferedInputStream bis =null; BufferedOutputStream bos =null; int c; fis = new FileInputStream(file); bis = new BufferedInputStream(fis); fos = new FileOutputStream(dir + "/" + fileName); bos = new BufferedOutputStream(fos); while((c = bis.read())!= -1) bos.write(c); bos.flush(); if(bos != null) bos.close(); if(bis != null) bis.close(); if(fos != null) fos.close(); if(fis != null) fos.close(); } else { System.out.println("文件已经存在,不进行存储,可清理当前文件."); } } /** * 测试方法 * @param argv * @throws IOException */ public static void main(String argv[]) { ScanFtp s = new ScanFtp(); try { s.scan(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } 邮件发送工具类 SendMail.java[java] view plain copy package com.util; import org.apache.commons.mail.EmailException; import org.apache.commons.mail.SimpleEmail; /** * 邮件发送工具类 */ public class SendMail { private String hostName;//设置smtp服务器 private String sendMailAddress;//设置发送地址 private String mailPassword;//设置密码 private boolean TLS = false;//设置是否需要TLS登录 private String[] getMailAddress;//设置接收地址s private String mailTitle;//设置标题 private String mailContent;//设置邮件内容 public void send(){ SimpleEmail email = new SimpleEmail(); email.setTLS(TLS); //是否TLS校验，，某些邮箱需要TLS安全校验，同理有SSL校验 email.setHostName(hostName); try { email.setFrom(sendMailAddress, sendMailAddress); email.setAuthentication(sendMailAddress, mailPassword); email.setCharset("utf-8");//解决中文乱码问题 email.setSubject(mailTitle); //标题 email.setMsg(mailContent);//内容 for(int i = 0; i < getMailAddress.length; ++i){ email.addTo(getMailAddress[i]); //接收方 email.send(); } } catch (EmailException e) { // e.printStackTrace(); } } public String getHostName() { return hostName; } public void setHostName(String hostName) { this.hostName = hostName; } public String getSendMailAddress() { return sendMailAddress; } public void setSendMailAddress(String sendMailAddress) { this.sendMailAddress = sendMailAddress; } public String getMailPassword() { return mailPassword; } public void setMailPassword(String mailPassword) { this.mailPassword = mailPassword; } public boolean isTLS() { return TLS; } public void setTLS(boolean tls) { TLS = tls; } public String[] getGetMailAddress() { return getMailAddress; } public void setGetMailAddress(String[] getMailAddress) { this.getMailAddress = getMailAddress; } public String getMailTitle() { return mailTitle; } public void setMailTitle(String mailTitle) { this.mailTitle = mailTitle; } public String getMailContent() { return mailContent; } public void setMailContent(String mailContent) { this.mailContent = mailContent; } } 分页工具类 SharePager.java[java] view plain copy package com.util; /** * 分页工具类 * */ public class SharePager { private int totalRows; //总行数 private int pageSize = 20; //每页显示的行数 private int currentPage; //当前页号 private int totalPages; //总页数 private int startRow; //当前页在数据库中的起始行 /** * 默认构造函数 */ public SharePager() { } /**默认每页10行 * @param totalRows */ public SharePager(int totalRows) { this.totalRows = totalRows; totalPages =(int) Math.ceil((double)totalRows / (double)pageSize); startRow = 0; } /**可自定义每页显示多少页 * @param totalRows * @param pageSize */ public SharePager(int totalRows, int pageSize) { this.totalRows = totalRows; this.pageSize = pageSize; if(this.pageSize<1) this.pageSize=1; else if(pageSize>20) this.pageSize=20; // if(this.pageSize>totalRows){ // this.pageSize=(int)totalRows; // } totalPages =(int) Math.ceil((double)totalRows / (double)this.pageSize); currentPage = 1; startRow = 0; } /** * 跳转到首页 */ public void first() { this.currentPage = 1; this.startRow = 0; } /** * 跳转到上一页 */ public void previous() { if (currentPage == 1) { return; } currentPage--; startRow = (currentPage-1) * pageSize; } /** * 跳转到下一页 */ public void next() { if (currentPage < totalPages) { currentPage++; } startRow = (currentPage-1) * pageSize; } /** * 跳转到尾页 */ public void last() { this.currentPage = totalPages; if(currentPage<1){ currentPage = 1; } this.startRow = (currentPage-1) * this.pageSize; totalPages =(int) Math.ceil((double)totalRows / (double)this.pageSize); } /** * 跳转到指定页 * @param currentPage 指定的页 */ public void refresh(int currentPage) { if(currentPage < 0) { first(); } if (currentPage > totalPages) { last(); }else{ this.currentPage = currentPage; this.startRow = (currentPage-1) * this.pageSize; } } public int getStartRow() { return startRow; } public int getTotalPages() { return totalPages; } public int getCurrentPage() { return currentPage; } public int getPageSize() { return pageSize; } public void setTotalRows(int totalRows) { this.totalRows = totalRows; } public void setStartRow(int startRow) { this.startRow = startRow; } public void setTotalPages(int totalPages) { this.totalPages = totalPages; } public void setCurrentPage(int currentPage) { this.currentPage = currentPage; } public void setPageSize(int pageSize) { this.pageSize = pageSize; } public int getTotalRows() { return totalRows; } } 0 0
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