Java中的byte[]和String的相互转换

//string 转 byte[]
String str = "Hello";
byte[] srtbyte = str.getBytes();

//byte[] 转 string
String res = new String(srtbyte);
System.out.println(res);

//设定编码方式的转换
String str = "hello";
byte[] srtbyte = null;
try {
srtbyte = str.getBytes("UTF-8");
String res = new String(srtbyte,"UTF-8");
System.out.println(res);
    } catch (UnsupportedEncodingException e) {
e.printStackTrace();
 }