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ResultSet rs;
bytep[] bytes = rs.getBytes();
String str = new String(bytes, "gb2312");

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ResultSet rs;
String str = rs.getString();
str = new String(str.getBytes("iso8859-1"), "gb2312");

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String str = "ÖÐ";
 
 
  String str1 = new String(str.getBytes("gbk"), "ISO8859-1");
  String str2 = new String(str1.getBytes("ISO8859-1"), "gbk");
  System.out.println(str2);  //Êä³ö"ÖÐ" ......
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