【kerberos】win环境下kerberos认证工具类_kerberos windwos 3.2.2-优快云博客

本文介绍了如何使用ApacheHadoop的Kerberos认证机制进行登录，包括配置环境变量、设置安全认证类型和使用keytab文件进行用户身份验证。

本案例在测试中很实用噢！

上代码：

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.UserGroupInformation;
import java.io.IOException;

public class KerberosProvider {
    public static final String krb5Conf = "D:\\configs\\krb5.conf";
    public static final String keytab = "D:\\configs\\xxx.keytab";
    public static final String principal = "xxx@XXXXX.COM";
    static {
        System.setProperty("java.security.krb5.conf", krb5Conf);
    }

    public static void login(){
        try {
            Configuration conf = new Configuration();
            conf.set("hadoop.security.authentication", "Kerberos");
            UserGroupInformation.setConfiguration(conf);
            UserGroupInformation.loginUserFromKeytab(principal, keytab);
            String userName = UserGroupInformation.getLoginUser().getUserName();
            String method = UserGroupInformation.getLoginUser().getAuthenticationMethod().toString();
            System.out.printf("kerberos login username [%s] for method [%s]%n",userName,method);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

}