生僻字与16进制的转换

字符串中的生僻字在传输和存储的过程中存在着各种各样的问题，为了便于传输和存储，我们通常会把这些生僻字转换为16进制编码进行传输和存储。

package com.dc.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.HashMap;
import java.util.Map;

/* ******************  类说明  *********************
 * class       :  RareWordUtil
 * @author     :  ncc
 * create time :  2017-12-20 上午09:49:54
 * @version    :  1.0  
 * description :  生僻字与16进制编码相互转化
 * @see        :                        
 * ************************************************/
public class RareWordUtil {
	private static Map<String, String> nameToValue;

	private static Map<String, String> valueToName;

	private String fileName = "gbk.txt";

	private String fileEncoding = "GBK";

	private final String preFix = "■△";

	private static final RareWordUtil cr_instance = new RareWordUtil();

	/**
	 * 构造方法
	 */
	private RareWordUtil() {
		try {
			init();
		} catch (IOException e) {
			System.out.println(e.getMessage());
		}
	}

	/* ********************************************
	 * method name   : getInstance 
	 * description   : 获取实例
	 * @return       : RareWordUtil
	 * @param        : @return
	 * modified      : ncc ,  2017-12-20
	 * @see          : 
	 * ********************************************/      
	public static RareWordUtil getInstance() {
		return cr_instance;
	}

	/* ********************************************
	 * method name   : init 
	 * description   : 初始化
	 * @return       : void
	 * @param        : @throws IOException
	 * modified      : ncc ,  2017-12-20
	 * @see          : 
	 * ********************************************/      
	@SuppressWarnings( { "static-access", "unchecked" })
	private void init() throws IOException {
		if (nameToValue != null && valueToName != null) {
			return;
		}
		InputStream input = RareWordUtil.class.getResourceAsStream(fileName);
		InputStreamReader inputsr = new InputStreamReader(input, Charset.forName(fileEncoding));
		BufferedReader br = new BufferedReader(inputsr);

		this.nameToValue = new HashMap();
		this.valueToName = new HashMap();
		String line = null;
		while ((line = br.readLine()) != null) {
			String ret = new String(line.getBytes(fileEncoding), fileEncoding);
			String key = ret.substring(0, 1);
			String value = ret.substring(line.length() - 4, line.length());
			this.nameToValue.put(key, value);
			this.valueToName.put(value, key);
		}
	}

	/* ********************************************
	 * method name   : getRareWord 
	 * description   : 将含16进制编码的字符串转化成含生僻字的字符串
	 * @return       : String
	 * @param        : @param value
	 * @param        : @return
	 * modified      : ncc ,  2017-12-20
	 * @see          : 
	 * ********************************************/      
	@SuppressWarnings("static-access")
	public String getRareWord(String value) {
		StringBuffer sb = new StringBuffer();
		int pos = -1;
		while ((pos = value.indexOf(preFix)) != -1) {
			sb.append(value.substring(0, pos));
			String code = value.substring(pos + preFix.length(), pos + preFix.length() + 4);
			String codeValue = this.valueToName.get(code);
			sb.append(codeValue);
			value = value.substring(pos + preFix.length() + 4, value.length());
		}
		sb.append(value);
		return sb.toString();
	}

	/* ********************************************
	 * method name   : getHex 
	 * description   : 将含生僻字的字符串转化成含16进制编码的字符串
	 * @return       : String
	 * @param        : @param name
	 * @param        : @return
	 * modified      : ncc ,  2017-12-20
	 * @see          : 
	 * ********************************************/      
	@SuppressWarnings("static-access")
	public String getHex(String name) {
		StringBuffer sb = new StringBuffer();
		for (int i = 0; i < name.length(); i++) {
			String value = this.nameToValue.get(name.substring(i, i + 1));
			if (value == null) {
				sb.append(name.substring(i, i + 1));
			} else {
				sb.append(preFix + value);
			}
		}
		return sb.toString();
	}

	public static void main(String[] args) {
		RareWordUtil cu = RareWordUtil.getInstance();
		String name = "王喆昊";
		name = cu.getHex(name);
		System.out.println("Cent2Dollar(1) = " + name);
		name = cu.getRareWord(name);
		System.out.println("Cent2Dollar(1) = " + name);

	}
}

 

 代码中用的的txt文件见附件。