1、Java 中 byte 转化为 String，代码如下

package nice.com.mian;import java.io.UnsupportedEncodingException;public class StringMain {public static void main(String[] args) throws Exception {byte[] bb = {97,99,105,51,55};String str = new String(bb, "utf-8");System.out.println(str);}
}

输出如下

2、String 转化为 byte ，代码如下

package nice.com.mian;import java.io.UnsupportedEncodingException;public class StringMain {public static void main(String[] args) throws Exception {String str = "afvg123";byte[] bb = str.getBytes();for(byte b : bb){System.out.println(b);}}
}

输出如下