准备认证机制代码

try {
   init();
   login();
   } 
catch (IOException e) {
   LOG.error("Failed to login because ", e);
   return;
}

private static void init() throws IOException {
        // Default load from conf directory
        conf = HBaseConfiguration.create();
        //In Windows environment
        String userdir = TestMain.class.getClassLoader().getResource("conf").getPath() + File.separator;[1]
        //In Linux environment
        //String userdir = System.getProperty("user.dir") + File.separator + "conf" + File.separator;
        conf.addResource(new Path(userdir + "core-site.xml"), false);
        conf.addResource(new Path(userdir + "hdfs-site.xml"), false);
        conf.addResource(new Path(userdir + "hbase-site.xml"), false);
}

[1]userdir获取的是编译后资源路径下conf目录的路径。将初始化需要的配置文件“core-site.xml”、“hdfs-site.xml”、“hbase-site.xml”和用于安全认证的用户凭证文件放置到“src/main/resources”的目录下。

请根据实际情况，修改“userName”为实际用户名，例如“developuser”。

在Windows环境下和Linux环境下请使用对应的路径获取方式。

private static void login() throws IOException {
        if (User.isHBaseSecurityEnabled(conf)) {
            userName = "hbaseuser1";
           
            //In Windows environment
            String userdir = TestMain.class.getClassLoader().getResource("conf").getPath() + File.separator;
            //In Linux environment
            //String userdir = System.getProperty("user.dir") + File.separator + "conf" + File.separator;
 
            /*
             * if need to connect zk, please provide jaas info about zk. of course,
             * you can do it as below:
             * System.setProperty("java.security.auth.login.config", confDirPath +
             * "jaas.conf"); but the demo can help you more : Note: if this process
             * will connect more than one zk cluster, the demo may be not proper. you
             * can contact us for more help
             */
            LoginUtil.setJaasConf(ZOOKEEPER_DEFAULT_LOGIN_CONTEXT_NAME, userName, userKeytabFile);
            LoginUtil.login(userName, userKeytabFile, krb5File, conf);
        }
}