Base64编码

java.util.Base64

package com.mozq.sb.jwt01.config;

import java.nio.charset.Charset;
import java.util.Base64;

/**
 * @description: Base64编码
 */
public class Base64Test {
    public static void main(String[] args) {
        //将字节数组编码成Base64字符串
        String src = "jie";
        String enc = Base64.getEncoder().encodeToString(src.getBytes());
        //不指定编码会使用默认的编码 Charset.defaultCharset().name()
        System.out.println(enc);

        //将Base64字符串解码成字节数组
        byte[] decode = Base64.getDecoder().decode(enc);
        String aSrc = new String(decode);
        System.out.println(aSrc);

        String defaultCharset = Charset.defaultCharset().name();
        System.out.println(defaultCharset);//UTF-8
    }
}

commons-codec

<!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
<dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>1.10</version>
</dependency>

package com.mozq.sb.jwt01.config;

import org.apache.commons.codec.binary.Base64;

import java.nio.charset.Charset;

/**
 * @description: Base64编码
 */
public class Base64Test_02 {
    public static void main(String[] args) {
        //将字节数组编码成Base64字符串
        String src = "jie//++--\\";
        String enc = new Base64().encodeToString(src.getBytes());//amllLy8rKy0tXA==
        //不指定编码会使用默认的编码 Charset.defaultCharset().name()
        System.out.println(enc);
        //将Base64字符串解码成字节数组
        byte[] decode = new Base64().decode(enc);
        String aSrc = new String(decode);
        System.out.println(aSrc);

        String defaultCharset = Charset.defaultCharset().name();
        System.out.println(defaultCharset);//UTF-8
    }
}

Base64编码

原文：https://www.cnblogs.com/mozq/p/11980852.html