针对三种Base64实现:
* 自已实现的
* JDK8的java.util.Base64
* apache-common的org.apache.commons.codec.binary.Base64
/** * 用于命令行调用 * * @throws Exception */ public static void main(String[] args) throws Exception { byte[] binaryData = "这是一个小小的测试 this is a test only".getBytes(); long t1 = System.currentTimeMillis(); for (int i = 0; i < 10000 * 1000; i++) Base64.decode(Base64.encode(binaryData)); long t2 = System.currentTimeMillis(); Encoder encoder = java.util.Base64.getEncoder(); Decoder decoder = java.util.Base64.getDecoder(); for (int i = 0; i < 10000 * 1000; i++) decoder.decode(encoder.encodeToString(binaryData)); long t3 = System.currentTimeMillis(); for (int i = 0; i < 10000 * 1000; i++) org.apache.commons.codec.binary.Base64.decodeBase64(org.apache.commons.codec.binary.Base64.encodeBase64String(binaryData)); long t4 = System.currentTimeMillis(); System.out.println("t2-t1:"+(t2-t1)); System.out.println("t3-t2:"+(t3-t2)); System.out.println("t4-t3:"+(t4-t3)); }
测试结果:
t2-t1:7871 #自己实现的
t3-t2:2820 #JDK8自带的
t4-t3:25142 #apache-common的
不要太相信apache-common的性能。
时间: 2024-11-06 14:04:19