对此问题的解决办法之一是写一个bean，好处是可重用。
public class ISOtoGBK {
public static String convert( String str ) {
if (str.trim()=="")
{
return null;
}
try {
/*Encodes this String into a sequence of bytes using the named charset, storing the result into a new byte array.*/
byte[] bytesStr=str.getBytes( "ISO-8859-1" ) ;
/*Constructs a new String by decoding the specified array of bytes using the specified charset. The length of the new String is a function of the charset, and hence may not be equal to the length of the byte array. */
return new String( bytesStr, "GBK" ) ;
}
catch( Exception ex ) {
return str ;
}
}
}
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