Java中使用Base64两种方式

一、使用JRE默认提供的Base64功能

1、需要导入一下的包

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

2、使用方法

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public static void main(String[] args) throws Exception {
    String str = "hello base64";
    String ret = "";
    ret = new BASE64Encoder().encode(str.getBytes());
    System.out.println("加密前:" + str + " 加密后:" + ret);
    str = "amF2YTEyMzQ1";
    try {
        ret = new String(new BASE64Decoder().decodeBuffer(str));
    } catch (IOException e) {
        e.printStackTrace();
    }
    System.out.println("解密前:" + str + " 解密后:" + ret);
}

import sun.misc.BASE64Decoder;

import sun.misc.BASE64Encoder;

public static void main(String[] args) throws Exception {

String str = "hello base64";

String ret = "";

ret = new BASE64Encoder().encode(str.getBytes());

System.out.println("加密前:" + str + " 加密后:" + ret);

str = "amF2YTEyMzQ1";

try {

ret = new String(new BASE64Decoder().decodeBuffer(str));

} catch (IOException e) {

e.printStackTrace();

}

System.out.println("解密前:" + str + " 解密后:" + ret);

}

二、使用commons-codec包

项目地址：http://commons.apache.org/proper/commons-codec/

maven引用：

<!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
<dependency>
    <groupId>commons-codec</groupId>
    <artifactId>commons-codec</artifactId>
    <version>1.11</version>
</dependency>

<groupId>commons-codec</groupId>

<artifactId>commons-codec</artifactId>

</dependency>

使用样例：

/**  
 * 解密  
 */
public static String decodeStr(String pwd) {
    Base64 base64 = new Base64();
    byte[] debytes = base64.decodeBase64(new String(pwd).getBytes());
    return new String(debytes);
}

/**  
 * 加密  
 */
public static String encodeStr(String pwd) {
    Base64 base64 = new Base64();
    byte[] enbytes = base64.encodeBase64Chunked(pwd.getBytes());
    return new String(enbytes);
}

/**

* 解密

public static String decodeStr(String pwd) {

Base64 base64 = new Base64();

byte[] debytes = base64.decodeBase64(new String(pwd).getBytes());

return new String(debytes);

}

/**

* 加密

public static String encodeStr(String pwd) {

Base64 base64 = new Base64();

byte[] enbytes = base64.encodeBase64Chunked(pwd.getBytes());

return new String(enbytes);

}

Java中使用Base64两种方式

文章评论