Question

我正在尝试使用node.js访问由Java实现的TThreadedSelectorServer

我已经能够使用TThreadPoolServer调用thrift中定义的函数，但是在使用TThreadPoolSelectorServer时我遇到了一些问题

这是我的node.js客户端代码

var thrift = require('thrift');
var ThriftTransports = require('thrift/transport');
var ThriftProtocols = require('thrift/protocol');
var CalculatorService = require('./gen-nodejs/CalculatorService.js');

//transport = ThriftTransports.TBufferedTransport();
transport = ThriftTransports.TFramedTransport();

protocol = ThriftProtocols.TBinaryProtocol();
//protocol = ThriftProtocols.TCompactProtocol();
//protocol = ThriftProtocols.TDebugProtocol();



var connection = thrift.createConnection("192.168.129.186", 9090, {
  transport : transport,
  protocol : protocol
});

connection.on('error', function(err) {
 console.log(err);
});

// Create a Calculator client with the connection
var client = thrift.createClient(CalculatorService, connection);
var strList=new Array("Audi","BMW","Volvo");
var strMap={fistname:"bill",lastname:"gates",id:"1111"};

client.send_print(1,"hello,world",strList,strMap,function(err, response) {
      console.log("send_print result:" + response);
    });

这是我的java服务器代码

try
        {
            TNonblockingServerTransport serverTransport = new TNonblockingServerSocket(
                    9090);


            CalculatorService.Processor<CalculatorImpl> processor = new CalculatorService.Processor<CalculatorImpl>(
                    new CalculatorImpl());
            TThreadedSelectorServer.Args args = new TThreadedSelectorServer.Args(
                    serverTransport).processor(processor);
            args.inputTransportFactory(new TFramedTransport.Factory())
            .outputTransportFactory(new TFramedTransport.Factory())
            .inputProtocolFactory(new TBinaryProtocol.Factory())
            .outputProtocolFactory(new TBinaryProtocol.Factory());

            TServer server = new TThreadedSelectorServer(args);
            System.out.println("Starting server on port 9090 ...");
            server.serve();
        } catch (TTransportException e)
        {
            e.printStackTrace();
        }

我能够使用java客户端成功访问此服务器

@Test
    public void test() throws TException
    {

        TSocket socket = new TSocket("192.168.129.186", 9090);

        TTransport transport = new TFramedTransport(socket);

        TProtocol protocol = new TBinaryProtocol(transport);

        CalculatorService.Client client = new CalculatorService.Client(protocol);

            transport.open();
            //socket.open();
            int num = 1;
            String str = "hello,world";
            ArrayList<String> strList = new ArrayList<String>();
            strList.add("hello,world1");
            strList.add("hello,world2");
            strList.add("hello,world3");

            HashMap<String, String> strMap = new HashMap<String, String>();
            strMap.put("hello1", "world1");
            strMap.put("hello2", "world2");
            strMap.put("hello3", "world3");
            int result = client.send_print(num, str, strList, strMap);
            //socket.close();
            transport.close();
            assertEquals(result, 3);

    }

但是当我使用node.js客户端访问该服务器时，我遇到了错误。

服务器端的错误日志是

ERROR server.AbstractNonblockingServer $ FrameBuffer （AbstractNonblockingServer.java:read(348）） - 读取无效帧大小-2147418111。你在客户端使用TFramedTransport吗？侧？

但我已经在node.js代码中分配了TFramedTransport

 transport = ThriftTransports.TFramedTransport();

任何帮助将不胜感激，提前致谢

Answer 1

好吧，我刚刚找到答案此问题是由TTFramedTransport引起的即使我在我的代码中使用它，我也发现了

transport = ThriftTransports.TFramedTransport();

传输似乎未成功分配TFramedTransport

我只是这样试试

transport = require('./node_modules/thrift/framed_transport.js')

成功了

我不熟悉node.js，也许我想出为什么会发生这种情况

Answer 2

http://thrift.apache.org/tutorial/nodejs中的教程是谎言或者过时，你必须这样写，才能使它工作：

var thrift = require('thrift');
var ThriftTransports = require('thrift/transport');
var ThriftProtocols = require('thrift/protocol');
var CalculatorService = require('./gen-nodejs/CalculatorService.js');

var connection = thrift.createConnection("192.168.129.186", 9090, {
  transport : ThriftTransports.TFramedTransport,
  protocol : ThriftProtocols.TBinaryProtocol
});

为什么即使指定了TFramedTransport，Node JS也会抱怨缺少TFramedTransport？

2 个答案: