[轉]Java經常使用工具類集合

轉自：http://blog.csdn.net/justdb/article/details/8653166

數據庫鏈接工具類——僅僅得到鏈接對象 ConnDB.java

package com.util;

import java.sql.Connection;
import java.sql.DriverManager;

/**
 * 數據庫鏈接工具類——僅僅得到鏈接對象
 *
 */
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;
    }
}

 

數據庫鏈接工具類——包含取得鏈接和關閉資源 ConnUtil.java

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: 數據庫鏈接工具類——包含取得鏈接和關閉資源 
 * @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";
    
    /**
     * 獲得鏈接
     * @return
     * @throws SQLException
     * @throws ClassNotFoundException
     */
    public static Connection establishConn() throws SQLException,ClassNotFoundException{
        Class.forName("com.mysql.jdbc.Driver");
        return DriverManager.getConnection(url, user, password);
    }
    
    /**
     * 關閉鏈接
     * @param conn
     * @throws SQLException
     */
    public static void close(Connection conn) throws SQLException{
        if(conn != null){
            conn.close();
            conn = null;
        }
    }
    
    /**
     * 關閉PreparedStatement
     * @param pstmt
     * @throws SQLException
     */
    public static void close(PreparedStatement pstmt) throws SQLException{
        if(pstmt != null){
            pstmt.close();
            pstmt = null;
        }
    }
    
    /**
     * 關閉結果集
     * @param rs
     * @throws SQLException
     */
    public static void close(ResultSet rs) throws SQLException{
        if(rs != null){
            rs.close();
            rs = null;
        }
    }
}

格式轉換工具類

 

日期轉換工具類 CommUtil.java

package com.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 日期轉換工具類
 */
public class CommUtil {

    /**
     * 將日期格式轉換成yyyy-MM-dd的字符串格式
     * 返回值如：2010-10-06
     * @param time 要轉換的日期
     * @return
     */
    public static  String dateToString(Date time)  {
        
        SimpleDateFormat formatter = new  SimpleDateFormat ("yyyy-MM-dd"); //定義將日期格式要換成的格式
        String stringTime  =  formatter.format(time);
    
        return  stringTime;
        
      }
    /**
     * 將日期格式轉換成yyyyMMdd的字符串格式
     * 返回值如：2010-10-06
     * @param time 要轉換的日期
     * @return
     */
    public static  String dateTimeToString(Date time)  {
        
        SimpleDateFormat formatter = new  SimpleDateFormat ("yyyyMMdd"); //定義將日期格式要換成的格式
        String stringTime  =  formatter.format(time);
    
        return  stringTime;
        
      }
    
     
    /**
     * 將日期格式轉換成yyyy-MM-dd的字符串格式
     * 返回值如：2010-10-06
     * @param time 要轉換的日期
     * @return
     */
    public static  Date dateToDate(Date time)  {
        
        SimpleDateFormat formatter = new  SimpleDateFormat ("yyyy-MM-dd"); //定義將日期格式要換成的格式
        String stringTime  =  formatter.format(time);
     Date date = null;
    try {
        date = formatter.parse(stringTime);
    } catch (ParseException e) {
        e.printStackTrace();
    }
        return  date;
        
    }
    
    /**
     * 獲得當前時間，以字符串表示
     * @return
     */
    public static String getDate(){
        Date date = new Date();
        return CommUtil.dateToString(date);
    }
}

日期轉換類  DateConverter.java

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;

/**
 * 日期轉換類
 *
 */
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") }; //支持轉換的日期格式 

    @Override 
    public Object convertValue(Map context, Object value, Class toType) { 
        if (toType == Date.class) {  //瀏覽器向服務器提交時，進行String to Date的轉換 
            Date date = null; 
            String dateString = null; 
            String[] params = (String[])value; 
            dateString = params[0];//獲取日期的字符串 
            for (DateFormat format : ACCEPT_DATE_FORMATS) { 
                try { 
                    return format.parse(dateString);//遍歷日期支持格式，進行轉換 
                } catch(Exception e) { 
                    continue; 
                } 
            } 
            return null; 
        } 
        else if (toType == String.class) {   //服務器向瀏覽器輸出時，進行Date to String的類型轉換 
            Date date = (Date)value; 
            return new SimpleDateFormat("yyyy-MM-dd").format(date);//輸出的格式是yyyy-MM-dd 
        } 
        
        return null; 
    }
}

功能更強大的格式化工具類 FormatUtils.java

package com.util;

import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * 功能更強大的格式化工具類
 */
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中的時間
     * @param date
     * @return
     */
    public static String formatDateForExcelDate(Date date) {
        return excelDate.format(date);
    }
    
    /**
     * 將日期格式化做爲文件名
     * @param date
     * @return
     */
    public static String formatDateForFileName(Date date) {
        return fileName.format(date);
    }

    /**
     * 格式化日期(精確到秒)
     * 
     * @param date
     * @return
     */
    public static String formatDateSecond(Date date) {
        return second.format(date);
    }
    
    /**
     * 格式化日期(精確到秒)
     * 
     * @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(精確到天)
     * 
     * @param date
     * @return
     */
    public static String formatDateDay(Date date) {
        return day.format(date);
    }
    
    /**
     * 格式化日期(精確到天)
     * 
     * @param date
     * @return
     */
    public static String formatDateDetailDay(Date date) {
        return detailDay.format(date);
    }

    /**
     * 將double類型的數字保留兩位小數（四捨五入）
     * 
     * @param number
     * @return
     */
    public static String formatNumber(double number) {
        DecimalFormat df = new DecimalFormat();
        df.applyPattern("#0.00");
        return df.format(number);
    }

    /**
     * 將字符串轉換成日期
     * 
     * @param date
     * @return
     * @throws Exception
     */
    public static Date formateDate(String date) throws Exception {
        return day.parse(date);
    }
    
    /**
     * 將字符日期轉換成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);
    }
}

文件操做工具類

 

目錄操做工具類 CopyDir.java

package com.util;

import java.io.*;

/**
 * 1,創建目的目錄。 2，遍歷源目錄。 3，遍歷過程當中，建立文件或者文件夾。 原理：其實就是改變了源文件或者目錄的目錄頭。
 * @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 {
        // 是建立目的目錄。也就是建立要拷貝的源文件夾。Test
        // 獲取源文件夾名稱。
        String name = sDir.getName();
        // 經過該名稱在目的目錄建立該文件夾，爲了存放源文件夾中的文件或者文件夾。
        // 將目的目錄和源文件夾名稱，封裝成File對象。
        newDir = dDir;
        // new File(dDir,name);
        // 調用該對象的mkdir方法。在目的目錄建立該文件夾。d:\\abc\\Test
        newDir.mkdir();//

        // 遍歷源文件夾。
        listAll(sDir);
    }

    /*
     * 將遍歷目錄封裝成方法。 在遍歷過程當中，遇到文件建立文件。 遇到目錄建立目錄。
     */
    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]);// 調用建立目錄的方法。
                listAll(files[x]);// 在繼續進行遞歸。進入子級目錄。
            } else {
                createFile(files[x]);// 調用建立文件的方法。
            }
        }
    }

    /*
     * copy目錄。經過源目錄在目的目錄建立新目錄。
     */
    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文件是一個數據數據傳輸的過程。須要經過流來完成。
        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();
    }

    /*
     * 替換路徑。
     */
    private File replaceFile(File f) {
        // 原理是：將源目錄的父目錄(C:\\Tset)，替換成目的父目錄。（d:\\abc\\Test）
        String path = f.getAbsolutePath();// 獲取源文件或者文件夾的決定路徑。
        // 將源文件或者文件夾的絕對路徑替換成目的路徑。
        String newPath = path.replace(sDir.getAbsolutePath(), newDir
                .getAbsolutePath());
        // 將新的目的路徑封裝成File對象
        File newFile = new File(newPath);
        return newFile;
    }
}

文件/目錄部分處理工具類 DealDir.java

package com.util;

import java.io.File;
import java.util.StringTokenizer;

/**
 * 文件/目錄 部分處理
 * @createTime Dec 25, 2010 7:06:58 AM
 * @version 1.0
 */
public class DealDir {
    /**
     * 獲取文件的後綴名並轉化成大寫
     * 
     * @param fileName
     *            文件名
     * @return
     */
    public String getFileSuffix(String fileName) throws Exception {
        return fileName.substring(fileName.lastIndexOf(".") + 1,
                fileName.length()).toUpperCase();
    }

    /**
     * 建立多級目錄
     * 
     * @param path
     *            目錄的絕對路徑
     */
    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("目錄建立失敗" + e);
            e.printStackTrace();
        }

    }

    /**
     * 刪除文件/目錄(遞歸刪除文件/目錄)
     * 
     * @param path
     *            文件或文件夾的絕對路徑
     */
    public void deleteAll(String dirpath) {
        if (dirpath == null) {
            System.out.println("目錄爲空");
        } else {
            File path = new File(dirpath);
            try {
                if (!path.exists())
                    return;// 目錄不存在退出
                if (path.isFile()) // 若是是文件刪除
                {
                    path.delete();
                    return;
                }
                File[] files = path.listFiles();// 若是目錄中有文件遞歸刪除文件
                for (int i = 0; i < files.length; i++) {
                    deleteAll(files[i].getAbsolutePath());
                }
                path.delete();

            } catch (Exception e) {
                System.out.println("文件/目錄 刪除失敗" + e);
                e.printStackTrace();
            }
        }
    }

    /**
     * 文件/目錄 重命名
     * 
     * @param oldPath
     *            原有路徑（絕對路徑）
     * @param newPath
     *            更新路徑
     * @author lyf 注：不能修改上層次的目錄
     */
    public void renameDir(String oldPath, String newPath) {
        File oldFile = new File(oldPath);// 文件或目錄
        File newFile = new File(newPath);// 文件或目錄
        try {
            boolean success = oldFile.renameTo(newFile);// 重命名
            if (!success) {
                System.out.println("重命名失敗");
            } else {
                System.out.println("重命名成功");
            }
        } catch (RuntimeException e) {
            e.printStackTrace();
        }

    }

}

目錄處理工具類 DealWithDir.java

package com.util;

import java.io.File;

/**
 * 目錄處理工具類
 *
 */
public class DealWithDir {
    /**
     * 新建目錄
     */
    public static boolean newDir(String path) throws Exception {
        File file = new File(path);
        return file.mkdirs();//建立目錄
    }
    
    /**
     * 刪除目錄
     */
    public static boolean deleteDir(String path) throws Exception {
        File file = new File(path);
        if (!file.exists())
            return false;// 目錄不存在退出
        if (file.isFile()) // 若是是文件刪除
        {
            file.delete();
            return false;
        }
        File[] files = file.listFiles();// 若是目錄中有文件遞歸刪除文件
        for (int i = 0; i < files.length; i++) {
            deleteDir(files[i].getAbsolutePath());
        }
        file.delete();
        
        return file.delete();//刪除目錄
    }

    /**
     * 更新目錄
     */
    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");
    }
    
    
}

刪除文件夾工具類 DeleteFolder.java

package com.util;

import java.io.File;

/**
 * 刪除文件夾
 * @createTime DSC 20, 2010 15:38
 * @version 2.0
 */
public class DeleteFolder {
    // 刪除文件夾
    // param folderPath 文件夾完整絕對路徑
    public static void delFolder(String folderPath) {
        try {
            delAllFile(folderPath); // 刪除完裏面全部內容
            String filePath = folderPath;
            filePath = filePath.toString();
            java.io.File myFilePath = new java.io.File(filePath);
            myFilePath.delete(); // 刪除空文件夾
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // 刪除指定文件夾下全部文件
    // param path 文件夾完整絕對路徑
    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]);// 先刪除文件夾裏面的文件
                delFolder(path + "/" + tempList[i]);// 再刪除空文件夾
                flag = true;
            }
        }
        return flag;
    }

}

文件上傳工具類 UploadUtil.java

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;

/**
 * 文件上傳工具類
 *
 */
public class UploadUtil {
    private static final int BUFFER_SIZE = 16 * 1024;
    //保存圖片
    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 年號+月號+天+時+分+秒+隨機碼
     * @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";
    }

}

其餘工具類

MD5編碼工具類 MD5Code.java

package com.util;
/**
 * MD5編碼工具類
 *
 */
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;
    }
}

讀取Config文件工具類 PropertiesConfig.java

package com.util;

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Properties;
/**
 * 讀取Config文件工具類
 * @version 1.0
 * @since JDK 1.6
 */
public class PropertiesConfig {  
      
    /** 
     * 獲取整個配置文件中的屬性
     * @param filePath 文件路徑，即文件所在包的路徑，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) {
        //獲取絕對路徑 並截掉路徑的」file:/「前綴  
        return PropertiesConfig.class.getResource("/" + filePath).toString().substring(6);
    }
}  

 

自動掃描FTP文件工具類 ScanFtp.java

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;

/**
 * 自動掃描FTP文件工具類
 * 須要定時執行
 */
public class ScanFtp {
    //服務器圖片路徑文件夾
    private String serverLocal = "D:/TOOLS/Tomcat 6.0/webapps/BCCCSM/modelforcast/";
    //圖片上傳文件夾存放路徑,文件夾內應包含AGCM CSM ZS 3個子文件夾分別存放須要掃描到tomcat中的圖片
    private String saveLocal = "D:/modelForcast/";
    /**
     * 得到遠程權限
     * @return
     */
    private void getFTPAdress(){
        //登錄成功
    }
    
    /**
     * 開始掃描
     * @throws IOException 
     */
    private void scan() throws IOException {
        this.getFTPAdress();
        File file = new File(saveLocal + "AGCM");  //打開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);//分析每個文件名字並存儲
                    System.out.println(fileName + " saved");
                }
            }   
        }
        
        file = new File(saveLocal + "CSM");  //打開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);//分析每個文件名字並存儲
                    System.out.println(fileName + " saved");
                }
            }   
        }
        
        file = new File(saveLocal + "ZS");  //打開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);//分析每個文件名字並存儲
                    System.out.println(fileName + " saved");
                }
            }   
        }
        

    }
    
    /**
     * 開始執行
     * @throws IOException 
     */
    public void execute() throws IOException{
        scan();//開始掃描
    }
    
    /**
     * 按類型存儲
     * @param file
     * @param type
     * @throws IOException 
     */
    private void saveFile(File file, int type) throws IOException {
        String fileName = file.getName();
        //類型A C 和 指數3種
        String year = fileName.substring(1, 5);//得到發佈年份
        String date = fileName.substring(5, 9);//得到發佈日期包含月日
        String var = null;//得到變量名字
        String dir = serverLocal;//存儲目錄名字
        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);//指數的暫時沒處理
            dir = dir + "ZS/" + var + "/" + year + "/" + date;
        }
        //判斷是否存在這樣的目錄沒有就自動建立
        File savePath = new File(dir);
        if(!savePath.exists()) {
            savePath.mkdirs();
        }
        File saveFile = new File(dir + "/" + fileName);
        if(!saveFile.exists()){//若是不存在,就存文件
            FileInputStream fis = null;//這裏用本地複製暫時代替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("文件已經存在,不進行存儲,可清理當前文件.");
        }
    }
    
    
    /**
     * 測試方法
     * @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();
        }
    }
}

郵件發送工具類 SendMail.java

package com.util;

import org.apache.commons.mail.EmailException;
import org.apache.commons.mail.SimpleEmail;

/**
 * 郵件發送工具類
 */
public class SendMail {
    private String hostName;//設置smtp服務器
    private String sendMailAddress;//設置發送地址
    private String mailPassword;//設置密碼
    private boolean TLS = false;//設置是否須要TLS登陸
    private String[] getMailAddress;//設置接收地址s
    private String mailTitle;//設置標題
    private String mailContent;//設置郵件內容

    public  void  send(){
        SimpleEmail email = new SimpleEmail();
        email.setTLS(TLS); //是否TLS校驗，，某些郵箱須要TLS安全校驗，同理有SSL校驗  
        email.setHostName(hostName);
        try {
            email.setFrom(sendMailAddress, sendMailAddress);
            email.setAuthentication(sendMailAddress, mailPassword);
            email.setCharset("utf-8");//解決中文亂碼問題
            email.setSubject(mailTitle); //標題       
            email.setMsg(mailContent);//內容  
            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;
    }
}

分頁工具類 SharePager.java

package com.util;


/**
 * 分頁工具類
 *
 */
public class SharePager {
    private int totalRows; //總行數
    private int pageSize = 20; //每頁顯示的行數  
    private int currentPage; //當前頁號
    private int totalPages; //總頁數 
    private int startRow; //當前頁在數據庫中的起始行  
   

    /**
     * 默認構造函數
     */
    public SharePager() 
    {  
        
    }  
      
    /**默認每頁10行
     * @param totalRows 
     */  
    public SharePager(int totalRows) 
    {  
        this.totalRows = totalRows;  

        totalPages =(int) Math.ceil((double)totalRows / (double)pageSize);  
        startRow = 0;  
    }  
      
      
    /**可自定義每頁顯示多少頁
     * @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;  
    }  
      
    /**
     * 跳轉到首頁
     */
    public void first() 
    {  
        this.currentPage = 1;  
        this.startRow = 0; 
    }  
    
    /**
     * 跳轉到上一頁
     */
    public void previous() 
    {  
        if (currentPage == 1) 
        {  
            return;  
        }  
        currentPage--;  
        startRow = (currentPage-1) * pageSize;  
   }  
    
    /**
     * 跳轉到下一頁
     */
    public void next() 
    {  
        if (currentPage < totalPages)
        {  
            currentPage++;  
        }  
        startRow = (currentPage-1) * pageSize;  
    }  
    
    /**
     *    跳轉到尾頁
     */
    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);   
        
    }  
    
    /**
     * 跳轉到指定頁
     * @param currentPage    指定的頁
     */
    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;  
    }  
}