java基础---->Base64算法的使用

时间:2023-03-09 16:57:38
java基础---->Base64算法的使用

  Base64是网络上最常见的用于传输8Bit字节代码的编码方式之一,可用于在HTTP环境下传递较长的标识信息。详细的Base64信息,可以参见*:https://en.wikipedia.org/wiki/Base64。今天,我们开始java中base64算法的使用。

结构导航

  1. Java自带的Base64算法
  2. commons-codec的Base64算法
  3. bouncycastle的Base64算法
  4. 自定义的base64算法
  5. 友情链接

Java自带的Base64算法

项目结构如下

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" alt="" />

一、 引入jdk自带的rt.jar包

要使用Base64Encoder,却发现在Eclipse中无法找到该类,原来Base64Encoder并不属于JDK标准库范畴,但是又包含在了JDK中。

问题的解决方案: Project->Properties,选择Java Build Path设置项,再选择Libraries标签,Add External Jars添加%JAVA_HOME%\jre\lib\rt.jar就行。

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" alt="" />

二、 我们通过junit方法,来加以对Base64算法的测试,明文:my name is huhx。

private static String src = "my name is huhx";

@Test
public void huhxBase64() {
try {
BASE64Encoder encoder = new BASE64Encoder();
String encode = encoder.encode(src.getBytes());
System.out.println("encode: " + encode); BASE64Decoder decoder = new BASE64Decoder();
String decode = new String(decoder.decodeBuffer(encode));
System.out.println("decode: " + decode);
} catch (IOException e) {
e.printStackTrace();
}
}

三、 运行结果如下:

encode: bXkgbmFtZSBpcyBodWh4
decode: my name is huhx

commons-codec的Base64算法

一、 引入commons-codec-1.10.jar包,提供对base64算法的支持

commons-codec-1.10.jar地址:https://www.bouncycastle.org/latest_releases.html

二、 我们通过junit方法,来加以对Base64算法的测试,明文:my name is huhx。

@Test
public void commonCodeBase64() {
byte[] encodeBytes = Base64.encodeBase64(src.getBytes());
System.out.println("encode: " + new String(encodeBytes)); byte[] decodeBytes = Base64.decodeBase64(encodeBytes);
System.out.println("decode: " + new String(decodeBytes));
}

三、 运行结果如下:

encode: bXkgbmFtZSBpcyBodWh4
decode: my name is huhx

bcprov的Base64算法

一、 引入bcprov-jdk15on-154.jar,提供对base64算法的支持

bcprov-jdk15on-154.jar地址: https://commons.apache.org/proper/commons-codec/download_codec.cgi

二、 我们通过junit方法,来加以对Base64算法的测试,明文:my name is huhx。

@Test
public void bouncyCodeBase64() {
byte[] encodeBytes = org.bouncycastle.util.encoders.Base64.encode(src.getBytes());
System.out.println("encode: " + new String(encodeBytes)); byte[] decodeBytes = org.bouncycastle.util.encoders.Base64.decode(encodeBytes);
System.out.println("decode: " + new String(decodeBytes));
}

三、 运行结果如下:

encode: bXkgbmFtZSBpcyBodWh4
decode: my name is huhx

自定义的base64算法

一、 HuhxBase64.java的自定义算法,内容如下:

package com.huhx.base64.jdk;

/**
* writer: huhx
*/
public class HuhxBase64 {
private static final String CODES = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; // base64解密
private static byte[] base64Decode(String input) {
if (input.length() % 4 != 0) {
throw new IllegalArgumentException("Invalid base64 input");
}
byte decoded[] = new byte[((input.length() * 3) / 4) - (input.indexOf('=') > 0 ? (input.length() - input.indexOf('=')) : 0)];
char[] inChars = input.toCharArray();
int j = 0;
int b[] = new int[4];
for (int i = 0; i < inChars.length; i += 4) {
// This could be made faster (but more complicated) by precomputing
// these index locations.
b[0] = CODES.indexOf(inChars[i]);
b[1] = CODES.indexOf(inChars[i + 1]);
b[2] = CODES.indexOf(inChars[i + 2]);
b[3] = CODES.indexOf(inChars[i + 3]);
decoded[j++] = (byte) ((b[0] << 2) | (b[1] >> 4));
if (b[2] < 64) {
decoded[j++] = (byte) ((b[1] << 4) | (b[2] >> 2));
if (b[3] < 64) {
decoded[j++] = (byte) ((b[2] << 6) | b[3]);
}
}
}
return decoded;
} // base64加密
private static String base64Encode(byte[] in) {
StringBuilder out = new StringBuilder((in.length * 4) / 3);
int b;
for (int i = 0; i < in.length; i += 3) {
b = (in[i] & 0xFC) >> 2;
out.append(CODES.charAt(b));
b = (in[i] & 0x03) << 4;
if (i + 1 < in.length) {
b |= (in[i + 1] & 0xF0) >> 4;
out.append(CODES.charAt(b));
b = (in[i + 1] & 0x0F) << 2;
if (i + 2 < in.length) {
b |= (in[i + 2] & 0xC0) >> 6;
out.append(CODES.charAt(b));
b = in[i + 2] & 0x3F;
out.append(CODES.charAt(b));
} else {
out.append(CODES.charAt(b));
out.append('=');
}
} else {
out.append(CODES.charAt(b));
out.append("==");
}
}
return out.toString();
} public static void main(String[] args) {
String input = "I love you, huhx!";
String encode = base64Encode(input.getBytes());
System.out.println("encode: " + encode); String decode = new String(base64Decode(encode));
System.out.println("decode: " + decode);
}
}

二、 运行结果如下:

encode: SSBsb3ZlIHlvdSwgaHVoeCE=
decode: I love you, huhx!

友情链接