encode.java

java写的全国移动联通的手机归属地查询程序

package net.xdevelop.util;

import java.io.UnsupportedEncodingException;
import net.xdevelop.util.Debug;

/**
 * Encoding convert class
 */

public final class Encode {

    /**
     * 从8859＿1转换为GB2312编码
     * @param str 待转换字符串
     */
    public static String toGb2312(String str) {
        String gbstr = null;
        if ( str == null || str.equals("") ) {
            return str;
        }
        else {
            try {
                gbstr =  new String(str.getBytes("8859_1"), "GB2312");
                return gbstr;
            }
            catch (UnsupportedEncodingException e) {
                Debug.println("Encode toGB2312 Error:" + e.getMessage());
                return str;
            }
        }
    }

    /**
     * 从8859＿1转换为GB2312编码
     * @param str 待转换字符串
     */
    public static String toGBK(String str) {
        String gbstr = null;
        if ( str == null || str.equals("") ) {
            return str;
        }
        else {
            try {
                gbstr =  new String(str.getBytes("8859_1"), "GB2312");
                return gbstr;
            }
            catch (UnsupportedEncodingException e) {
                Debug.println("Encode toGB2312 Error:" + e.getMessage());
                return str;
            }
        }
    }


    /**
     * 从GBK转换为8859_1编码
     * @param str 待转换字符串
     */
    public static String to8859_1(String str) {
        String gbstr = null;
        if ( str == null || str.equals("") ) {
            return str;
        }
        else {
            try {
                gbstr =  new String(str.getBytes("GB2312"), "8859_1");
                return gbstr;
            }
            catch (UnsupportedEncodingException e) {
                Debug.println("Encode toGB2312 Error:" + e.getMessage());
                return str;
            }
        }
    }
}