java数据传输乱码解决，对中文编码解码解决乱码问题，中文乱码

	        
package com.tool.utils;

import org.apache.commons.lang.StringUtils;

/**
 * 字符编码解码工具类【处理中文乱码】
 * @author jspanjsp
 *
 */
public class EncodingUtil {
	
	//特殊字符编码（中文）
	public static String encodeZhCN(String content){
		if(StringUtils.isBlank(content)){
			return "";
		}
		return encodeStr(escape(content));
	} 
	//特殊字符解码（中文）
	public static String decodeZhCN(String content){
		if(StringUtils.isBlank(content)){
			return "";
		}
		return unescape(decodeStr(content));
	}
	
	/*特殊字符解码
	 * + URL 中+号表示空格 %2B 
	 * 空格 URL中的空格可以用+号或者编码 %20
	 * / 分隔目录和子目录 %2F 
	 * ? 分隔实际的URL和参数 %3F 
	 * % 指定特殊字符 %25 
	 * # 表示书签 %23 
	 * & URL 中指定的参数间的分隔符 %26 
	 * = URL 中指定参数的值 %3D
	 */
	public static String decodeStr(String str) {
		str = str.replaceAll("thanks", "%");
		str = str.replaceAll("44F", "-");
		str = str.replaceAll("%2B", "+");
		str = str.replaceAll("%20", " ");
		str = str.replaceAll("%3F", "?");
		str = str.replaceAll("%23", "#");
		str = str.replaceAll("%26", "&");
		str = str.replaceAll("%3D", "=");
		str = str.replaceAll("%2F", "/");
		str = str.replaceAll("%RR", "\r");
		str = str.replaceAll("%NN", "\n");
		//str = str.replaceAll("%25", "%");
		return str;
	}
	//特殊字符编码
	public static String encodeStr(String str) {
		str = str.replaceAll("-", "44F");
		str = str.replaceAll("\n", "%NN");
		str = str.replaceAll("\r", "%RR");
		str = str.replaceAll("\\+", "%2B");
		str = str.replaceAll(" ", "%20");
		str = str.replaceAll("\\?", "%3F");
		str = str.replaceAll("#", "%23");
		str = str.replaceAll("&", "%26");
		str = str.replaceAll("=", "%3D");
		str = str.replaceAll("/", "%2F");
		str = str.replaceAll("%", "thanks");
		return str;
	}
	
	//字符串编码，能解决中文乱码问题
    public static String escape(String src) {
        int i;
        char j;
        StringBuffer tmp = new StringBuffer();
        tmp.ensureCapacity(src.length() * 6);
        for (i = 0; i < src.length(); i++) {
            j = src.charAt(i);
            if (Character.isDigit(j) || Character.isLowerCase(j)
                    || Character.isUpperCase(j))
                tmp.append(j);
            else if (j < 256) {
                tmp.append("%");
                if (j < 16)
                    tmp.append("0");
                tmp.append(Integer.toString(j, 16));
            } else {
                tmp.append("%u");
                tmp.append(Integer.toString(j, 16));
            }
        }
        return tmp.toString();
    }

    //字符串解码，能解决中文乱码问题
    public static String unescape(String src) {
        if (src == null)
            return null;
        StringBuffer tmp = new StringBuffer();
        tmp.ensureCapacity(src.length());
        int lastPos = 0, pos = 0;
        char ch;
        while (lastPos < src.length()) {
            pos = src.indexOf("%", lastPos);
            if (pos == lastPos) {
                if (src.charAt(pos + 1) == 'u') {
                    ch = (char) Integer.parseInt(
                            src.substring(pos + 2, pos + 6), 16);
                    tmp.append(ch);
                    lastPos = pos + 6;
                } else if (src.charAt(pos + 1) == ' '
                        || src.charAt(pos + 1) == ';') {
                    tmp.append(src.substring(pos, pos + 1));
                    lastPos = pos + 1;
                } else {
                    ch = (char) Integer.parseInt(
                            src.substring(pos + 1, pos + 3), 16);
                    tmp.append(ch);
                    lastPos = pos + 3;
                }
            } else {
                if (pos == -1) {
                    tmp.append(src.substring(lastPos));
                    lastPos = src.length();
                } else {
                    tmp.append(src.substring(lastPos, pos));
                    lastPos = pos;
                }
            }
        }
        return tmp.toString();
    }
	
}