java gbk轉utf8

我的情況：

沒有部署前的spring boot項目：前台請求的參數編碼格式是utf8
在打成jar包后：前台請求的參數編碼格式是gbk

 

代碼：

String reqUrl = "";

String str = new String(reqUrl.getBytes(), "gbk");
byte[] bytes = str.getBytes(StandardCharsets.UTF_8);

reqUrl = new String(bytes);


其實可以先判斷其編碼格式，再進行編碼格式的轉換更好

String iso8859 = new String(reqUrl.getBytes("iso8859-1"));
String gbk = new String(reqUrl.getBytes("gbk"));
if(iso8859.equals(reqUrl)){
    String str = new String(reqUrl.getBytes(), "iso8859-1");
    byte[] bytes = str.getBytes(StandardCharsets.UTF_8);
    reqUrl = new String(bytes);
    System.out.println("iso8859");
}else  if(gbk.equals(reqUrl)){
    String str = new String(reqUrl.getBytes(), "gbk");
    byte[] bytes = str.getBytes(StandardCharsets.UTF_8);
    reqUrl = new String(bytes);
    System.out.println("gbk");
}


歡迎糾錯.........