encodeutil.java

实现gbk、unicode、iso8859之间互相转换的类

package cn.ineasy.util;

import java.io.UnsupportedEncodingException;

/**
 * 编码转换，如GBK到ISO，GBK到Unicode等
 * 
 * @author 王玉玺
 * @version 1.0 / 2006-03-16
 */

public class EncodeUtil {

	/**
	 * 把GBK转为Unicode
	 * 
	 * @param inStr
	 *            gbk编码字符串
	 * @return Unicode格式字符串
	 */
	public static String GB2Unicode(String inStr) {
		if (inStr == null) {
			return null;
		}

		char temChr;
		int ascInt;
		int i;
		String result = new String("");
		if (inStr == null) {
			inStr = "";
		}

		for (i = 0; i < inStr.length(); i++) {
			temChr = inStr.charAt(i);
			ascInt = temChr + 0;
			result = result + "&#x" + Integer.toHexString(ascInt) + ";";
		}
		return result;
	}

	/**
	 * 把GBK转为ISO-8859-1
	 * 
	 * @param inStr
	 *            gbk编码字符串
	 * @return ISO-8859-1格式字符串
	 */
	public static String GBK2ISO(String inStr) {
		if (inStr == null) {
			return null;
		}

		try {
			return new String(inStr.getBytes("GBK"), "ISO-8859-1");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return "";
		}
	}

	public static String GBK2Utf8(String inStr) {
		if (inStr == null) {
			return null;
		}

		try {
			return new String(inStr.getBytes("GBK"), "UTF-8");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return "";
		}
	}

	/**
	 * 把ISO-8859-1转为Unicode
	 * 
	 * @param inStr
	 *            ISO-8859-1编码字符串
	 * @return Unicode格式字符串
	 */
	public static String ISO2Unicode(String inStr) {
		if (inStr == null) {
			return null;
		}

		try {
			inStr = new String(inStr.getBytes("ISO-8859-1"), "GBK");
			return GB2Unicode(inStr);
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return "";
		}
	}

	/**
	 * 把ISO-8859-1转为GBK
	 * 
	 * @param inStr
	 *            ISO-8859-1编码字符串
	 * @return GBK格式字符串
	 */
	public static String ISO2GBK(String inStr) {
		if (inStr == null) {
			return null;
		}

		try {
			return new String(inStr.getBytes("ISO-8859-1"), "GBK");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return "";
		}
	}

	public static String Utf82GBK(String inStr) {
		if (inStr == null) {
			return null;
		}

		try {
			return new String(inStr.getBytes("UTF-8"), "GBK");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return "";
		}
	}

	public static String Utf82ISO(String inStr) {
		if (inStr == null) {
			return null;
		}

		try {
			return new String(inStr.getBytes("UTF-8"), "ISO-8859-1");
		} catch (UnsupportedEncodingException e) {
			e.printStackTrace();
			return "";
		}
	}

	public static void main(String[] args) {
		System.out.println(GB2Unicode("测试"));
	}
}