image

其中 constants.go、rpc_service.go、ttypes.go 是协议库，编写程序需要用到。rpc_service-remote.go 是自动生成的例程，可以不用。

二、go语言实现

1、服务器端

下面，我们来写服务器端程序：

package main

import (
    "demo/rpc"
    "fmt"
    "git.apache.org/thrift.git/lib/go/thrift"
    "os"
)

const (
    NetworkAddr = "127.0.0.1:19090"
)

type RpcServiceImpl struct {
}

func (this *RpcServiceImpl) FunCall(callTime int64, funCode string, paramMap map[string]string) (r []string, err error) {
    fmt.Println("-->FunCall:", callTime, funCode, paramMap)

    for k, v := range paramMap {
        r = append(r, k+v)
    }
    return
}

func main() {
    transportFactory := thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory())
    protocolFactory := thrift.NewTBinaryProtocolFactoryDefault()
    //protocolFactory := thrift.NewTCompactProtocolFactory()

    serverTransport, err := thrift.NewTServerSocket(NetworkAddr)
    if err != nil {
        fmt.Println("Error!", err)
        os.Exit(1)
    }

    handler := &RpcServiceImpl{}
    processor := rpc.NewRpcServiceProcessor(handler)

    server := thrift.NewTSimpleServer4(processor, serverTransport, transportFactory, protocolFactory)
    fmt.Println("thrift server in", NetworkAddr)
    server.Serve()
}

加空行也不过才43行，怎么样简单吧。

2、客户端程序

package main

import (
    "demo/rpc"
    "fmt"
    "git.apache.org/thrift.git/lib/go/thrift"
    "net"
    "os"
    "time"
)

func main() {
    startTime := currentTimeMillis()
    transportFactory := thrift.NewTFramedTransportFactory(thrift.NewTTransportFactory())
    protocolFactory := thrift.NewTBinaryProtocolFactoryDefault()

    transport, err := thrift.NewTSocket(net.JoinHostPort("127.0.0.1", "19090"))
    if err != nil {
        fmt.Fprintln(os.Stderr, "error resolving address:", err)
        os.Exit(1)
    }

    useTransport := transportFactory.GetTransport(transport)
    client := rpc.NewRpcServiceClientFactory(useTransport, protocolFactory)
    if err := transport.Open(); err != nil {
        fmt.Fprintln(os.Stderr, "Error opening socket to 127.0.0.1:19090", " ", err)
        os.Exit(1)
    }
    defer transport.Close()

    for i := 0; i < 1000; i++ {
        paramMap := make(map[string]string)
        paramMap["name"] = "qinerg"
        paramMap["passwd"] = "123456"
        r1, e1 := client.FunCall(currentTimeMillis(), "login", paramMap)
        fmt.Println(i, "Call->", r1, e1)
    }

    endTime := currentTimeMillis()
    fmt.Println("Program exit. time->", endTime, startTime, (endTime - startTime))
}

// 转换成毫秒
func currentTimeMillis() int64 {
    return time.Now().UnixNano() / 1000000
}

分别编译，先启动服务器端，然后在执行客户端程序。可以看到控制台正确打印出了信息，说明调用通过。

-->FunCall: 1380446325199 login map[name:qinerg passwd:123456]

三、Java版实现

为了验证跨语言调用，下面我们分别再用java实现一下服务器端和客户端：

生成Java版开发库：

thrift-0.9.1.exe -gen java RpcService.thrift

1、Java服务器版

package demo.rpc;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TBinaryProtocol.Factory;
import org.apache.thrift.server.TNonblockingServer;
import org.apache.thrift.server.TServer;
import org.apache.thrift.transport.TNonblockingServerSocket;
import org.apache.thrift.transport.TNonblockingServerTransport;
import org.apache.thrift.transport.TTransportException;

/**
 * Thrift测试服务器
 */
public class Server implements RpcService.Iface {

    public static void main(String[] as) {
        TNonblockingServerTransport serverTransport = null;
        try {
            serverTransport = new TNonblockingServerSocket(19090);
        } catch (TTransportException e) {
            e.printStackTrace();
        }

        RpcService.Processor<RpcService.Iface> processor = new RpcService.Processor<RpcService.Iface>(
                new Server());

        Factory protFactory = new TBinaryProtocol.Factory(true, true);
        //TCompactProtocol.Factory protFactory = new TCompactProtocol.Factory();

        TNonblockingServer.Args args = new TNonblockingServer.Args(
                serverTransport);
        args.processor(processor);
        args.protocolFactory(protFactory);
        TServer server = new TNonblockingServer(args);
        System.out.println("Start server on port 19090 ...");
        server.serve();
    }

    @Override
    public List<String> funCall(long callTime, String funCode,
            Map<String, String> paramMap) throws TException {
        System.out.println("-->FunCall:" + callTime + " " + funCode + " "
                + paramMap);
        List<String> retList = new ArrayList<>();

        for (Entry<String, String> entry : paramMap.entrySet()) {
            retList.add(entry.getKey() + entry.getValue());
        }

        return retList;
    }
}

2、Java客户端版

package demo.rpc;

import java.util.HashMap;
import java.util.Map;

import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.transport.TFramedTransport;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;

/**
 * Thrift测试客户端
 */
public class Client {

    public static void main(String[] args) {

        long startTime = System.currentTimeMillis();
        try {
            TTransport transport = new TFramedTransport(new TSocket("localhost", 19090));

            TBinaryProtocol protocol = new TBinaryProtocol(transport);
            //TCompactProtocol protocol = new TCompactProtocol(transport);

            RpcService.Client client = new RpcService.Client(protocol);
            transport.open();

            Map<String, String> param = new HashMap<String, String>();
            param.put("name", "qinerg");
            param.put("passwd", "123456");

            for (int i = 0; i < 1000; i++) {
                System.out.println(client.funCall(System.currentTimeMillis() , "login", param));
            }

            transport.close();
        } catch (TException x) {
            x.printStackTrace();
        }
        long endTime = System.currentTimeMillis();
        System.out.println(" 本次调用完成时间:" + endTime + "   " + startTime + "  " + (endTime - startTime));
    }
}

好了，现在启动java版服务器端，用golang版客户端调用，完全没有问题。启动golang版服务器端程序，用java版客户端调用，同样OK。

完美实现了跨语言调用。