java乱码问题,急求帮助!

[jekencao]

从ORACLE存储过程得到字符串全是"?"的乱码,数字能正常显示,我把这段代码转换成unicode使用如下方法:

测试用:getUnicode("2008-02-28{北京{天津{上海");

public static String toHEXString(byte b) {
return (""+"0123456789abcdef".charAt(0xf&b>>4)+"0123456789abcdef".charAt(b&0xF));
}

public static String getUnicode(String setStr) {
String szRet = "";
String szRetTmp = null;
String str = null;
try {
try {
str = new String(setStr.getBytes("gb2312"),"gb2312");
}
catch(Exception ex){
ex.printStackTrace();
}
byte[] bb = str.getBytes("UTF16");
for(int i = 2; i < bb.length; i++)
{
i++;
if(bb[i-1] != 0)
szRetTmp = "\\u" + toHEXString(bb[i-1]) + toHEXString(bb[i]);
else
szRetTmp = new String(bb,i,1,"gb2312");
szRet = szRet + szRetTmp;
}
}catch(Exception ex) {
szRet="Sorry Convert2Unicode method fail!";
ex.printStackTrace();
}
return szRet;
}

得到unicode:2008-02-28{\u5317\u4eac{\u5929\u6d25{\u4e0a\u6d77,然后把这段代码再转换为字符格式,如下方法:

unicodeToStr(getUnicode("2008-02-28{北京{天津{上海"));
或
String unicodestr=getUnicode("2008-02-28{北京{天津{上海");
unicodeToStr(unicodestr);

public String unicodeToStr(String uStr){
String str = uStr;
System.out.println("str:"+str+" "+str.length());
String[] unicode = str.split("\\\\u");
StringBuffer buf = new StringBuffer(unicode.length - 1);
for(int i = 1; i < unicode.length; i++)
{
buf.append(Integer.parseInt(unicode[i],16));
}
System.out.println(buf.toString());
return str;
}

总是提示错误:
java.lang.NumberFormatException: For input string: "4eac{"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)

而如果直接使用unicodeToStr("2008-02-28{\u5317\u4eac{\u5929\u6d25{\u4e0a\u6d77");就不会报错,请问该怎么改呀,或者使用其它方法把unicode 转化为字符格式?
谢谢了!

[yibunengjing]

手头正好有份和楼主需求一样的资料，楼主可以参考下：

	public static String gbk2Unicode(String str) {
		StringBuffer ret = new StringBuffer();
		String tmp = null;
		try {
			byte[] bb = str.getBytes("UTF-16");
			for (int i = 3; i < bb.length; i += 2) {
				if (bb[i - 1] != 0)
					tmp = toHEXString(bb[i - 1]) + toHEXString(bb[i]);
				else
					tmp = "00" + toHEXString(bb[i]);
				ret.append("\\u").append(tmp);
			}
			return ret.toString();
		} catch (Exception e) {
			return str;
		}
	}

	public static String unicode2GBK(String str) {
		String[] s = str.split("\\\\u");
		StringBuffer ret = new StringBuffer();
		for (int i = 1; i < s.length; i++) {
			ret.append((char) Integer.parseInt(s[i], 16));
		}
		return ret.toString();
	}

	private static String toHEXString(byte b) {
		return ("" + "0123456789ABCDEF".charAt(0xf & b >> 4) + "0123456789ABCDEF"
				.charAt(b & 0xF));
	}

[yibunengjing]

String temp = gbk2Unicode("2008-02-28{北京{天津{上海");
		System.out.println("gbk2Unicode:" + temp);
		System.out.println("unicode2GBK:" + unicode2GBK(temp));

验证可以通过

[EdifierX]

先搞清楚DB中出来的是什么码才能正确的转,不然越转越乱的.

[jekencao]

多谢帮助！