如何在Java中将Byte []数组转换为String

在Java中，我们可以使用new String(bytes, StandardCharsets.UTF_8)将byte []转换为String。

package com.mkyong.io;
 
import java.nio.charset.StandardCharsets;
 
public class JavaSample {
 
    public static void main(String[] args) {
 
        String example = "This is raw text!";
        byte[] bytes = example.getBytes();
 
        System.out.println("Text : " + example);
        System.out.println("Text [Byte Format] : " + bytes);
        // no, don't do this, it returns the address of the object in memory
        System.out.println("Text [Byte Format] : " + bytes.toString());
 
        // convert bytes[] to string
        String s = new String(bytes, StandardCharsets.UTF_8);
        System.out.println("Output : " + s);
 
        // UnsupportedEncodingException
        //String s = new String(bytes, "UTF_8");
 
    }
 
}

输出量

Text : This is raw text!
Text [Byte Format] : [B@5ae9a829
Text [Byte Format] : [B@5ae9a829
Output : This is raw text!

翻译自: https://mkyong.com/java/how-do-convert-byte-array-to-string-in-java/