中文编码测试

String[] codes = {
"iso-8859-1",
"utf-8",
"gbk",
"unicode"
};

for (int i = 0; i < codes.length; i++) {
for (int j = 0; j < codes.length; j++) {
String code1 = codes[i];
String code2 = codes[j];
String changVal = new String(req.getParameter("Columns").getBytes(code1), code2);
System.out.println("转换前后编码[" + code1 + ", " + code2 + "]=======" + changVal);
}
}