1,用google的工具包,配置maven:
<!-- https://mvnrepository.com/artifact/com.googlecode.juniversalchardet/juniversalchardet -->
<dependency>
<groupId>com.googlecode.juniversalchardet</groupId>
<artifactId>juniversalchardet</artifactId>
<version>1.0.3</version>
</dependency>
2,定义一个公共方法:
public static String guessEncoding(byte[] bytes) {
UniversalDetector detector = new UniversalDetector(null);
detector.handleData(bytes, 0, bytes.length);
detector.dataEnd();
String encoding = detector.getDetectedCharset();
detector.reset();
return encoding;
}