public static String getURLByDBInfo(DBInfo dbInfo)
    {
        String url = "";
        if(dbInfo.getDbType() != null)
            if(dbInfo.getDbType().equals("SQLSERVER"))
                url = (new StringBuilder("jdbc:microsoft:sqlserver://")).append(dbInfo.getDbHost()).append(":").append(dbInfo.getDbPort()).append(";DatabaseName=").append(dbInfo.getDbSID()).toString();
            else
            if(dbInfo.getDbType().equals("ORACLE"))
                url = (new StringBuilder("jdbc:oracle:thin:@")).append(dbInfo.getDbHost()).append(":").append(dbInfo.getDbPort()).append(":").append(dbInfo.getDbSID()).toString();
            else
            if(dbInfo.getDbType().equals("ORACLE_DSP"))
                url = (new StringBuilder("jdbc:dsp@")).append(dbInfo.getDbHost()).append(":").append(dbInfo.getDbPort()).append("/").append(dbInfo.getDbSID()).append("/").append(dbInfo.getNamespace()).toString();
            else
            if(dbInfo.getDbType().equals("SYBASE"))
                url = "jdbc:sybase:Tds:...";
            else
                url = "sun.jdbc.odbc.JdbcOdbcDriver";
        return url;
    }

/**
     * 全角字符转半角字符
     *
     * @param QJStr
     * @return String
     */
    public static final String QJToBJChange(String QJStr)
    {
        char[] chr = QJStr.toCharArray();
        String str = "";
        for (int i = 0; i < chr.length; i++)
        {
            chr[i] = (char) ((int) chr[i] - 65248);
            str += chr[i];
        }
        return str;
    }

**
     * 去掉字符串中重复的子字符串
     *
     * @param str
     * @return String
     */
    private static String removeSameString(String str)
    {
        Set<String> mLinkedSet = new LinkedHashSet<String>();
        String[] strArray = str.split(" ");
        StringBuffer sb = new StringBuffer();

        for (int i = 0; i < strArray.length; i++)
        {
            if (!mLinkedSet.contains(strArray[i]))
            {
                mLinkedSet.add(strArray[i]);
                sb.append(strArray[i] + " ");
            }
        }
        System.out.println(mLinkedSet);
        return sb.toString().substring(0, sb.toString().length() - 1);
    }

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

public class ConnectDB {
private static final String MYSQL = "jdbc:mysql://";

private static final String ORACLE = "jdbc:oracle:thin:@";

private ConnectDB() {
}

public static Connection getInstance(String DBType, String url)
throws NoSuchDBException, SQLException {
if ("mysql".equalsIgnoreCase(DBType))
return getMySqlConn(url);
if ("oracle".equalsIgnoreCase(DBType))
return getOracleConn(url);
return null;
}

public static void closeConn(Connection conn) {
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}

private static Connection getMySqlConn(String url) throws SQLException {
Connection conn = null;
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
conn = DriverManager.getConnection(MYSQL + url, "root", "root");

return conn;
}

private static Connection getOracleConn(String url) throws SQLException {
Connection conn = null;
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
conn = DriverManager.getConnection(ORACLE + url, "scott", "tiger");

return conn;
}
}

**
     * 人民币转成大写
     *
     * @param value
     * @return String
     */
    public static String hangeToBig(double value)
    {
        char[] hunit = { '拾', '佰', '仟' }; // 段内位置表示
        char[] vunit = { '万', '亿' }; // 段名表示
        char[] digit = { '零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖' }; // 数字表示
        long midVal = (long) (value * 100); // 转化成整形
        String valStr = String.valueOf(midVal); // 转化成字符串

        String head = valStr.substring(0, valStr.length() - 2); // 取整数部分
        String rail = valStr.substring(valStr.length() - 2); // 取小数部分

        String prefix = ""; // 整数部分转化的结果
        String suffix = ""; // 小数部分转化的结果
        // 处理小数点后面的数
        if (rail.equals("00"))
        { // 如果小数部分为0
            suffix = "整";
        }
        else
        {
            suffix = digit[rail.charAt(0) - '0'] + "角" + digit[rail.charAt(1) - '0'] + "分"; // 否则把角分转化出来
        }
        // 处理小数点前面的数
        char[] chDig = head.toCharArray(); // 把整数部分转化成字符数组
        char zero = '0'; // 标志'0'表示出现过0
        byte zeroSerNum = 0; // 连续出现0的次数
        for (int i = 0; i < chDig.length; i++)
        { // 循环处理每个数字
            int idx = (chDig.length - i - 1) % 4; // 取段内位置
            int vidx = (chDig.length - i - 1) / 4; // 取段位置
            if (chDig[i] == '0')
            { // 如果当前字符是0
                zeroSerNum++; // 连续0次数递增
                if (zero == '0')
                { // 标志
                    zero = digit[0];
                }
                else if (idx == 0 && vidx > 0 && zeroSerNum < 4)
                {
                    prefix += vunit[vidx - 1];
                    zero = '0';
                }
                continue;
            }
            zeroSerNum = 0; // 连续0次数清零
            if (zero != '0')
            { // 如果标志不为0,则加上,例如万,亿什么的
                prefix += zero;
                zero = '0';
            }
            prefix += digit[chDig[i] - '0']; // 转化该数字表示
            if (idx > 0)
                prefix += hunit[idx - 1];
            if (idx == 0 && vidx > 0)
            {
                prefix += vunit[vidx - 1]; // 段结束位置应该加上段名如万,亿
            }
        }

        if (prefix.length() > 0)
            prefix += '圆'; // 如果整数部分存在,则有圆的字样
        return prefix + suffix; // 返回正确表示
    }