php+nodeJs+thrift协议，实现zookeeper节点数据自动发现

./server001/bin/zkServer.sh start
./server002/bin/zkServer.sh start
./server003/bin/zkServer.sh start
./server004/bin/zkServer.sh start
./server005/bin/zkServer.sh start
![zookeeper集群启动][1]

./bin/zkCli.sh
/zk_test测试写入123：set /zk_test 123 发现可以正常写入与读取
![zk写入与读取][2]

namespace php tutorial
service zkDataService {
     string zkData()
}

C:\Users\77388\AppData\thrift-0.10.0.exe -r --gen js:node zkData.thrift

![生成node端中间代码][3]

console.log('pid in worker:', process.pid);
process.on('message', function(msg) {
  console.log('3:', msg);
});
var i=0;
var zookeeper = require('node-zookeeper-client');
var client = zookeeper.createClient('localhost:2181');
var path = '/zk_test';//节点名称
 
function getData(client, path) {
    client.getData(
        path,
        function (event) {
            console.log('Got event: %s', event);
            getData(client, path);
        },
        function (error, data, stat) {
            if (error) {
                console.log('Error occurred when getting data: %s.', error);
                return;
            }
            process.send('zookeeper节点数据'+data.toString('utf8'));//通知主进程zk节点数据
        }
    );
}
 
client.once('connected', function () {
    console.log('Connected to ZooKeeper.');
    getData(client, path);
});
 
client.connect();
process.emit('message', '======');

var childprocess = require('child_process');
var worker = childprocess.fork('./support.js');
console.log('pid in master:', process.pid);
var childMessage="";
//监听子进程事件
worker.on('message', function(msg) {
  childMessage=msg;
  console.log('1:', msg);//监听子进程zk数据，并将zk节点数据打印
})
process.on('message', function(msg) {
  console.log('2:', msg);
})

//触发事件 message
process.emit('message', '------');
var thrift = require("thrift");
var zkDataService = require("./gen-nodejs/zkDataService");
var ttypes = require("./gen-nodejs/tutorial_types");
var data = {};
var server = thrift.createServer(zkDataService, {
  zkData: function(result) {
    result(null, childMessage);//将zk节点数据返回
  }
});
server.listen(9090);

<?php
namespace tutorial\php;
error_reporting(E_ALL);
require_once __DIR__.&#39;/lib/Thrift/ClassLoader/ThriftClassLoader.php&#39;;
require_once __DIR__.&#39;/gen-php/tutorial/zkDataService.php&#39;;
use Thrift\ClassLoader\ThriftClassLoader;
$GEN_DIR = realpath(dirname(__FILE__).&#39;/..&#39;).&#39;/gen-php&#39;;
$loader = new ThriftClassLoader();
$loader->registerNamespace(&#39;Thrift&#39;, __DIR__ . &#39;/lib&#39;);
$loader->registerDefinition(&#39;shared&#39;, $GEN_DIR);
$loader->registerDefinition(&#39;tutorial&#39;, $GEN_DIR);
$loader->register();
/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
use Thrift\Protocol\TBinaryProtocol;
use Thrift\Transport\TSocket;
use Thrift\Transport\THttpClient;
use Thrift\Transport\TBufferedTransport;
use Thrift\Exception\TException;
try {
  if (array_search(&#39;--http&#39;, $argv)) {
    $socket = new THttpClient(&#39;localhost&#39;, 8080, &#39;/php/PhpServer.php&#39;);
  } else {
    $socket = new TSocket(&#39;192.168.0.105&#39;, 9090);
  }
  $transport = new TBufferedTransport($socket, 1024, 1024);
  $protocol = new TBinaryProtocol($transport);
  $client = new \tutorial\zkDataServiceClient($protocol);
  $transport->open();
  $result= $client->zkData();
  print "$result";//打印zk节点数据
  $transport->close();
} catch (TException $tx) {
  print &#39;TException: &#39;.$tx->getMessage()."\n";
}
?>