import org.apache.commons.codec.binary.Base64;
public class UtilHelper { //base64字符串轉byte[] public static byte[] base64String2ByteFun(String base64Str){ return Base64.decodeBase64(base64Str); } //byte[]轉base64 public static String byte2Base64StringFun(byte[] b){ return Base64.encodeBase64String(b); } }
普通String和byte[]轉換
public static void main(String[] args) { String str="我是中國人"; byte[] arr=str.getBytes(); System.out.println("打印:"+arr); String str2=new String(arr); System.out.println("打印2:"+str2); }