项目经验分享——Java常用工具类集合

 转载自http://blog.csdn.net/wentasy/article/details/8653166

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

 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

 

 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

 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

 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

 

 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

 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

 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

 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

 

 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

 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

 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

 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

 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

 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

 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;