三十八毒

忘了是那里抄来的,还是自己写的,反正需要的时候直接拿来用,很方便.
我的工具类已经攒了N多,今天帖出一点点和大家共享,呵呵.

import java.awt.Frame;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.ImageWriter;
import javax.imageio.stream.ImageInputStream;

/**
 * <p>
 * Title: 工具类
 * </p>
 * <p>
 * Description: 用来处理时间日期字符串等
 * </p>
 * <p>
 * Copyright: (C) 2006.11 常用方法，需要者随便拿去^-^
 * </p>
 * 
 * @author weiking
 * @version 1.０
 */
public class UtilTool {

	public UtilTool() {
		super();
	}

	/**
	 * 杀空函数，将"null"和null对象转换为""
	 * 
	 * @param str
	 *            输入字符串
	 * @return 输出字符串
	 */
	public String killNull(String str) {
		String returnStr = null;
		if (str == null || "null".equals(str.toLowerCase())) {
			returnStr = "";
		} else {
			returnStr = str;
		}
		return returnStr;
	}

	/**
	 * 切割字符串
	 * 
	 * @return
	 */
	public String timeFirs() {
		String[] timefirs = new String[3];
		String timefir = "2006-9-28";
		timefirs = timefir.split("-");
		String mydate1 = timefirs[0] + "年" + timefirs[1] + "月" + timefirs[2]
				+ "日";
		return mydate1;
	}

	/**
	 * 去除字符串两边的空格并处理空字符串
	 * 
	 * @param str
	 *            输入字符串
	 * @return 输出字符串
	 */
	public String trim(String str) {
		String returnStr = null;
		returnStr = killNull(str);
		returnStr = returnStr.trim();
		return returnStr;
	}

	/**
	 * 将String类型变量转换为ASCII码 1、如果ASCII为73<i>、79[O]，跳过
	 * 2、只转换'0-9'和'A-Z'(除'I'、'O')的ASCII码，对应的ASCII码为'48-57'和'65-90'(除'73'、'79')
	 * 
	 * @param transParam
	 *            待转换的变
	 * @return 转换后的ASCII码
	 */
	public static String stringToASCII(String transParam) {
		// 不满足要求，直接返回null
		if (transParam == null || transParam.length() == 0) {
			return null;
		}

		char[] transChars = transParam.toCharArray();
		String ascii = "";

		// 字符转换为数字，并拼接为ASCII码
		int charASCII = -1;
		for (int i = 0; i < transChars.length; i++) {
			charASCII = (int) transChars<i>;

			// 如果为73(I)、79(O)，自增
			if (charASCII == 73 || charASCII == 79) {
				charASCII++;
			}
			ascii += charASCII;
		}

		return ascii;
	}
}