java 常用工具类 合集


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


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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






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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


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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


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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






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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


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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


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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


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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






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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


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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


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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 plaincopy










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 plaincopy










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 plaincopy










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 plaincopy










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; 





















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