获取url路径下的文件md5值,JAVA自带的commons-codec包就提供了获取16进制MD5值的方法。
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.apache.commons.codec.digest.DigestUtils;
public class Test {
public static void main(String[] args) {
InputStream inputStream = null;
try {
//url路径
URL url=new URL("http://obs.jwy.szga/0266784f2acf448d862de250a04fc0b9/62ee75dc919b4841803add044909cc78.zip");
//获取连接
HttpURLConnection connection=(HttpURLConnection)url.openConnection();
connection.setConnectTimeout(3*1000);
//设置请求头
connection.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.110 Safari/537.36");
inputStream = connection.getInputStream();
//DigestUtils为org.apache.commons.codec.digest.DigestUtils下的类
String md5 = DigestUtils.md5Hex(inputStream);
System.out.println(md5);
} catch (IOException e) {
e.printStackTrace();
} finally{
try {
if (inputStream != null) {
//关闭流
inputStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
文件md5在线计算:http://www.metools.info/other/o21.html