unicode字符n 提交服务器请求中文字符乱码，需要进行编码转换(3)

??????throws??UnsupportedEncodingException??{????

????if??(str??!=??null)??{????

??????//用旧的字符编码解码字符串。解码可能会出现异常。unicode字符nunicode字符n????

??????byte[]??bs??=??str.getBytes(oldCharset);????

??????//用新的字符编码生成字符串????

??????return??new??String(bs,??newCharset);????

????}????

????return??null;????

??}????

????

??public??static??void??main(String[]??args)??throws??UnsupportedEncodingException??{????

????ChangeCharset??test??=??new??ChangeCharset();????

????String??str??=??"This??is??a??中文的??String!";????

????System.out.println("str:??"??+??str);????

????String??gbk??=??test.toGBK(str);????

????System.out.println("转换成GBK码:??"??+??gbk);????

????System.out.println();????

????String??ascii??=??test.toASCII(str);????

????System.out.println("转换成US-ASCII码:??"??+??ascii);????

????gbk??=??test.changeCharset(ascii,ChangeCharset.US_ASCII,??ChangeCharset.GBK);????

????System.out.println("再把ASCII码的字符串转换成GBK码:??"??+??gbk);????

????System.out.println();????

????String??iso88591??=??test.toISO_8859_1(str);????

????System.out.println("转换成ISO-8859-1码:??"??+??iso88591);????

????gbk??=??test.changeCharset(iso88591,ChangeCharset.ISO_8859_1,??ChangeCharset.GBK);????

????System.out.println("再把ISO-8859-1码的字符串转换成GBK码:??"??+??gbk);????

????System.out.println();????

????String??utf8??=??test.toUTF_8(str);????

????System.out.println("转换成UTF-8码:??"??+??utf8);????

????gbk??=??test.changeCharset(utf8,ChangeCharset.UTF_8,??ChangeCharset.GBK);????

????System.out.println("再把UTF-8码的字符串转换成GBK码:??"??+??gbk);????

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