java 把 byte[] 数组转化为String

文章出处：http://www.mkyong.com/java/how-do-convert-byte-array-to-string-in-java/

In some cases, we have to convert String variable into a Byte array format, for example, JCE encryption. However how do weconvert a Byte[] array to String afterward?

Simple toString() function like following code is not working property. It will not display the original text but byte value.

String s = bytes.toString();

In order to convert Byte array into String format correctly, we have to explicitly create a String object and assign the Byte array to it.

String s = new String(bytes);

public class TestByte
{
public static void main(String[] argv) {

String example = "This is an example";
byte[] bytes = example.getBytes();

System.out.println("Text : " + example);
System.out.println("Text [Byte Format] : " + bytes);
System.out.println("Text [Byte Format] : " + bytes.toString());

//String s = new String(bytes, "UTF-8");
String s = new String(bytes);System.out.println("Text Decryted : " + s);

}
}

Output

Text : This is an example

Text [Byte Format] : [B@187aeca

Text [Byte Format] : [B@187aeca

Text Decryted : This is an example