Eddyer
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Thrift入门及Java实例演示

本文参考

http://www.micmiu.com/soa/rpc/thrift-sample/

http://bit1129.iteye.com/blog/2106628

ailikes.iteye.com/blog/2211925

对于一些概念不再阐述,强调一下Thrift语法可参考：

http://www.cnblogs.com/tianhuilove/archive/2011/09/05/2167669.html

实例

1，新建一个maven管理项目在pom.xml中添加依赖包。

    <dependency>
      <groupId>org.apache.thrift</groupId>
      <artifactId>libthrift</artifactId>
      <version>0.9.3</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.5.8</version>
    </dependency>

2，编写“.thrift”文件，安装thrift，生成thrift代码。

namespace java com.eddy.webapp.thrift

service  HelloWorldService {
  string sayHello(1:string username)
}

dos命令：

thrift -out E:/project/webapp/src/main/java -gen java E:/project/webapp/src/main/java/com/eddy/webapp/thrift/thrift/HelloWorldService.thrift

如果要生成的文件很多可以用代码的方式来生成。

package com.eddy.webapp.thrift;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * Thrift 生成
 * Created by eddy on 2015/10/14.
 */
public class _Main {

    //定义一个源文件路径
    private final static String ROOT_PATH = "E:/project/webapp/src/main/java/com/eddy/webapp/thrift/thrift";

    public static void main(String args[]) {
        try {
            docs(new File(ROOT_PATH));
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    private static void docs(File file) throws IOException {
        if (file.canRead()) {
            if (file.getName().charAt(0) == '.') {
                return;
            }
            if (file.isDirectory()) {
                String[] files = file.list();
                if (null != files) {
                    for (String file1 : files) {
                        docs(new File(file, file1));
                    }
                }
            } else {
                String command = "thrift -out E:/project/webapp/src/main/java -gen java " + file.getAbsolutePath();
                Process process = Runtime.getRuntime().exec(command);
                BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
                if (null == bufferedReader.readLine()) {
                    System.out.println("Execution: " + command);
                }
            }
        }
    }

}

3，生成了HelloWorldService.Iface接口（供参考）：

/**
 * Autogenerated by Thrift Compiler (0.9.2)
 *
 * DO NOT EDIT UNLESS YOU ARE SURE THAT YOU KNOW WHAT YOU ARE DOING
 *  @generated
 */
package com.eddy.webapp.thrift;

import org.apache.thrift.scheme.IScheme;
import org.apache.thrift.scheme.SchemeFactory;
import org.apache.thrift.scheme.StandardScheme;

import org.apache.thrift.scheme.TupleScheme;
import org.apache.thrift.protocol.TTupleProtocol;
import org.apache.thrift.protocol.TProtocolException;
import org.apache.thrift.EncodingUtils;
import org.apache.thrift.TException;
import org.apache.thrift.async.AsyncMethodCallback;
import org.apache.thrift.server.AbstractNonblockingServer.*;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import java.util.EnumMap;
import java.util.Set;
import java.util.HashSet;
import java.util.EnumSet;
import java.util.Collections;
import java.util.BitSet;
import java.nio.ByteBuffer;
import java.util.Arrays;
import javax.annotation.Generated;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@SuppressWarnings({"cast", "rawtypes", "serial", "unchecked"})
@Generated(value = "Autogenerated by Thrift Compiler (0.9.2)", date = "2015-10-14")
public class HelloWorldService {

  public interface Iface {

    public String sayHello(String username) throws org.apache.thrift.TException;

  }

  public interface AsyncIface {

    public void sayHello(String username, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException;

  }

  public static class Client extends org.apache.thrift.TServiceClient implements Iface {
    public static class Factory implements org.apache.thrift.TServiceClientFactory<Client> {
      public Factory() {}
      public Client getClient(org.apache.thrift.protocol.TProtocol prot) {
        return new Client(prot);
      }
      public Client getClient(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
        return new Client(iprot, oprot);
      }
    }

    public Client(org.apache.thrift.protocol.TProtocol prot)
    {
      super(prot, prot);
    }

    public Client(org.apache.thrift.protocol.TProtocol iprot, org.apache.thrift.protocol.TProtocol oprot) {
      super(iprot, oprot);
    }

    public String sayHello(String username) throws org.apache.thrift.TException
    {
      send_sayHello(username);
      return recv_sayHello();
    }

    public void send_sayHello(String username) throws org.apache.thrift.TException
    {
      sayHello_args args = new sayHello_args();
      args.setUsername(username);
      sendBase("sayHello", args);
    }

    public String recv_sayHello() throws org.apache.thrift.TException
    {
      sayHello_result result = new sayHello_result();
      receiveBase(result, "sayHello");
      if (result.isSetSuccess()) {
        return result.success;
      }
      throw new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.MISSING_RESULT, "sayHello failed: unknown result");
    }

  }
  public static class AsyncClient extends org.apache.thrift.async.TAsyncClient implements AsyncIface {
    public static class Factory implements org.apache.thrift.async.TAsyncClientFactory<AsyncClient> {
      private org.apache.thrift.async.TAsyncClientManager clientManager;
      private org.apache.thrift.protocol.TProtocolFactory protocolFactory;
      public Factory(org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.protocol.TProtocolFactory protocolFactory) {
        this.clientManager = clientManager;
        this.protocolFactory = protocolFactory;
      }
      public AsyncClient getAsyncClient(org.apache.thrift.transport.TNonblockingTransport transport) {
        return new AsyncClient(protocolFactory, clientManager, transport);
      }
    }

    public AsyncClient(org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.async.TAsyncClientManager clientManager, org.apache.thrift.transport.TNonblockingTransport transport) {
      super(protocolFactory, clientManager, transport);
    }

    public void sayHello(String username, org.apache.thrift.async.AsyncMethodCallback resultHandler) throws org.apache.thrift.TException {
      checkReady();
      sayHello_call method_call = new sayHello_call(username, resultHandler, this, ___protocolFactory, ___transport);
      this.___currentMethod = method_call;
      ___manager.call(method_call);
    }

    public static class sayHello_call extends org.apache.thrift.async.TAsyncMethodCall {
      private String username;
      public sayHello_call(String username, org.apache.thrift.async.AsyncMethodCallback resultHandler, org.apache.thrift.async.TAsyncClient client, org.apache.thrift.protocol.TProtocolFactory protocolFactory, org.apache.thrift.transport.TNonblockingTransport transport) throws org.apache.thrift.TException {
        super(client, protocolFactory, transport, resultHandler, false);
        this.username = username;
      }

      public void write_args(org.apache.thrift.protocol.TProtocol prot) throws org.apache.thrift.TException {
        prot.writeMessageBegin(new org.apache.thrift.protocol.TMessage("sayHello", org.apache.thrift.protocol.TMessageType.CALL, 0));
        sayHello_args args = new sayHello_args();
        args.setUsername(username);
        args.write(prot);
        prot.writeMessageEnd();
      }

      public String getResult() throws org.apache.thrift.TException {
        if (getState() != org.apache.thrift.async.TAsyncMethodCall.State.RESPONSE_READ) {
          throw new IllegalStateException("Method call not finished!");
        }
        org.apache.thrift.transport.TMemoryInputTransport memoryTransport = new org.apache.thrift.transport.TMemoryInputTransport(getFrameBuffer().array());
        org.apache.thrift.protocol.TProtocol prot = client.getProtocolFactory().getProtocol(memoryTransport);
        return (new Client(prot)).recv_sayHello();
      }
    }

  }

  public static class Processor<I extends Iface> extends org.apache.thrift.TBaseProcessor<I> implements org.apache.thrift.TProcessor {
    private static final Logger LOGGER = LoggerFactory.getLogger(Processor.class.getName());
    public Processor(I iface) {
      super(iface, getProcessMap(new HashMap<String, org.apache.thrift.ProcessFunction<I, ? extends org.apache.thrift.TBase>>()));
    }

    protected Processor(I iface, Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> processMap) {
      super(iface, getProcessMap(processMap));
    }

    private static <I extends Iface> Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> getProcessMap(Map<String,  org.apache.thrift.ProcessFunction<I, ? extends  org.apache.thrift.TBase>> processMap) {
      processMap.put("sayHello", new sayHello());
      return processMap;
    }

    public static class sayHello<I extends Iface> extends org.apache.thrift.ProcessFunction<I, sayHello_args> {
      public sayHello() {
        super("sayHello");
      }

      public sayHello_args getEmptyArgsInstance() {
        return new sayHello_args();
      }

      protected boolean isOneway() {
        return false;
      }

      public sayHello_result getResult(I iface, sayHello_args args) throws org.apache.thrift.TException {
        sayHello_result result = new sayHello_result();
        result.success = iface.sayHello(args.username);
        return result;
      }
    }

  }

  public static class AsyncProcessor<I extends AsyncIface> extends org.apache.thrift.TBaseAsyncProcessor<I> {
    private static final Logger LOGGER = LoggerFactory.getLogger(AsyncProcessor.class.getName());
    public AsyncProcessor(I iface) {
      super(iface, getProcessMap(new HashMap<String, org.apache.thrift.AsyncProcessFunction<I, ? extends org.apache.thrift.TBase, ?>>()));
    }

    protected AsyncProcessor(I iface, Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase, ?>> processMap) {
      super(iface, getProcessMap(processMap));
    }

    private static <I extends AsyncIface> Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase,?>> getProcessMap(Map<String,  org.apache.thrift.AsyncProcessFunction<I, ? extends  org.apache.thrift.TBase, ?>> processMap) {
      processMap.put("sayHello", new sayHello());
      return processMap;
    }

    public static class sayHello<I extends AsyncIface> extends org.apache.thrift.AsyncProcessFunction<I, sayHello_args, String> {
      public sayHello() {
        super("sayHello");
      }

      public sayHello_args getEmptyArgsInstance() {
        return new sayHello_args();
      }

      public AsyncMethodCallback<String> getResultHandler(final AsyncFrameBuffer fb, final int seqid) {
        final org.apache.thrift.AsyncProcessFunction fcall = this;
        return new AsyncMethodCallback<String>() { 
          public void onComplete(String o) {
            sayHello_result result = new sayHello_result();
            result.success = o;
            try {
              fcall.sendResponse(fb,result, org.apache.thrift.protocol.TMessageType.REPLY,seqid);
              return;
            } catch (Exception e) {
              LOGGER.error("Exception writing to internal frame buffer", e);
            }
            fb.close();
          }
          public void onError(Exception e) {
            byte msgType = org.apache.thrift.protocol.TMessageType.REPLY;
            org.apache.thrift.TBase msg;
            sayHello_result result = new sayHello_result();
            {
              msgType = org.apache.thrift.protocol.TMessageType.EXCEPTION;
              msg = (org.apache.thrift.TBase)new org.apache.thrift.TApplicationException(org.apache.thrift.TApplicationException.INTERNAL_ERROR, e.getMessage());
            }
            try {
              fcall.sendResponse(fb,msg,msgType,seqid);
              return;
            } catch (Exception ex) {
              LOGGER.error("Exception writing to internal frame buffer", ex);
            }
            fb.close();
          }
        };
      }

      protected boolean isOneway() {
        return false;
      }

      public void start(I iface, sayHello_args args, org.apache.thrift.async.AsyncMethodCallback<String> resultHandler) throws TException {
        iface.sayHello(args.username,resultHandler);
      }
    }

  }

  public static class sayHello_args implements org.apache.thrift.TBase<sayHello_args, sayHello_args._Fields>, java.io.Serializable, Cloneable, Comparable<sayHello_args>   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("sayHello_args");

    private static final org.apache.thrift.protocol.TField USERNAME_FIELD_DESC = new org.apache.thrift.protocol.TField("username", org.apache.thrift.protocol.TType.STRING, (short)1);

    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
    static {
      schemes.put(StandardScheme.class, new sayHello_argsStandardSchemeFactory());
      schemes.put(TupleScheme.class, new sayHello_argsTupleSchemeFactory());
    }

    public String username; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      USERNAME((short)1, "username");

      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();

      static {
        for (_Fields field : EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 1: // USERNAME
            return USERNAME;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      public static _Fields findByName(String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final String _fieldName;

      _Fields(short thriftId, String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.USERNAME, new org.apache.thrift.meta_data.FieldMetaData("username", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
      metaDataMap = Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(sayHello_args.class, metaDataMap);
    }

    public sayHello_args() {
    }

    public sayHello_args(
      String username)
    {
      this();
      this.username = username;
    }

    /**
     * Performs a deep copy on <i>other</i>.
     */
    public sayHello_args(sayHello_args other) {
      if (other.isSetUsername()) {
        this.username = other.username;
      }
    }

    public sayHello_args deepCopy() {
      return new sayHello_args(this);
    }

    @Override
    public void clear() {
      this.username = null;
    }

    public String getUsername() {
      return this.username;
    }

    public sayHello_args setUsername(String username) {
      this.username = username;
      return this;
    }

    public void unsetUsername() {
      this.username = null;
    }

    /** Returns true if field username is set (has been assigned a value) and false otherwise */
    public boolean isSetUsername() {
      return this.username != null;
    }

    public void setUsernameIsSet(boolean value) {
      if (!value) {
        this.username = null;
      }
    }

    public void setFieldValue(_Fields field, Object value) {
      switch (field) {
      case USERNAME:
        if (value == null) {
          unsetUsername();
        } else {
          setUsername((String)value);
        }
        break;

      }
    }

    public Object getFieldValue(_Fields field) {
      switch (field) {
      case USERNAME:
        return getUsername();

      }
      throw new IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new IllegalArgumentException();
      }

      switch (field) {
      case USERNAME:
        return isSetUsername();
      }
      throw new IllegalStateException();
    }

    @Override
    public boolean equals(Object that) {
      if (that == null)
        return false;
      if (that instanceof sayHello_args)
        return this.equals((sayHello_args)that);
      return false;
    }

    public boolean equals(sayHello_args that) {
      if (that == null)
        return false;

      boolean this_present_username = true && this.isSetUsername();
      boolean that_present_username = true && that.isSetUsername();
      if (this_present_username || that_present_username) {
        if (!(this_present_username && that_present_username))
          return false;
        if (!this.username.equals(that.username))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      List<Object> list = new ArrayList<Object>();

      boolean present_username = true && (isSetUsername());
      list.add(present_username);
      if (present_username)
        list.add(username);

      return list.hashCode();
    }

    @Override
    public int compareTo(sayHello_args other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = Boolean.valueOf(isSetUsername()).compareTo(other.isSetUsername());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetUsername()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.username, other.username);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
    }

    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder("sayHello_args(");
      boolean first = true;

      sb.append("username:");
      if (this.username == null) {
        sb.append("null");
      } else {
        sb.append(this.username);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class sayHello_argsStandardSchemeFactory implements SchemeFactory {
      public sayHello_argsStandardScheme getScheme() {
        return new sayHello_argsStandardScheme();
      }
    }

    private static class sayHello_argsStandardScheme extends StandardScheme<sayHello_args> {

      public void read(org.apache.thrift.protocol.TProtocol iprot, sayHello_args struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 1: // USERNAME
              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
                struct.username = iprot.readString();
                struct.setUsernameIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, sayHello_args struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.username != null) {
          oprot.writeFieldBegin(USERNAME_FIELD_DESC);
          oprot.writeString(struct.username);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class sayHello_argsTupleSchemeFactory implements SchemeFactory {
      public sayHello_argsTupleScheme getScheme() {
        return new sayHello_argsTupleScheme();
      }
    }

    private static class sayHello_argsTupleScheme extends TupleScheme<sayHello_args> {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, sayHello_args struct) throws org.apache.thrift.TException {
        TTupleProtocol oprot = (TTupleProtocol) prot;
        BitSet optionals = new BitSet();
        if (struct.isSetUsername()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetUsername()) {
          oprot.writeString(struct.username);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, sayHello_args struct) throws org.apache.thrift.TException {
        TTupleProtocol iprot = (TTupleProtocol) prot;
        BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.username = iprot.readString();
          struct.setUsernameIsSet(true);
        }
      }
    }

  }

  public static class sayHello_result implements org.apache.thrift.TBase<sayHello_result, sayHello_result._Fields>, java.io.Serializable, Cloneable, Comparable<sayHello_result>   {
    private static final org.apache.thrift.protocol.TStruct STRUCT_DESC = new org.apache.thrift.protocol.TStruct("sayHello_result");

    private static final org.apache.thrift.protocol.TField SUCCESS_FIELD_DESC = new org.apache.thrift.protocol.TField("success", org.apache.thrift.protocol.TType.STRING, (short)0);

    private static final Map<Class<? extends IScheme>, SchemeFactory> schemes = new HashMap<Class<? extends IScheme>, SchemeFactory>();
    static {
      schemes.put(StandardScheme.class, new sayHello_resultStandardSchemeFactory());
      schemes.put(TupleScheme.class, new sayHello_resultTupleSchemeFactory());
    }

    public String success; // required

    /** The set of fields this struct contains, along with convenience methods for finding and manipulating them. */
    public enum _Fields implements org.apache.thrift.TFieldIdEnum {
      SUCCESS((short)0, "success");

      private static final Map<String, _Fields> byName = new HashMap<String, _Fields>();

      static {
        for (_Fields field : EnumSet.allOf(_Fields.class)) {
          byName.put(field.getFieldName(), field);
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, or null if its not found.
       */
      public static _Fields findByThriftId(int fieldId) {
        switch(fieldId) {
          case 0: // SUCCESS
            return SUCCESS;
          default:
            return null;
        }
      }

      /**
       * Find the _Fields constant that matches fieldId, throwing an exception
       * if it is not found.
       */
      public static _Fields findByThriftIdOrThrow(int fieldId) {
        _Fields fields = findByThriftId(fieldId);
        if (fields == null) throw new IllegalArgumentException("Field " + fieldId + " doesn't exist!");
        return fields;
      }

      /**
       * Find the _Fields constant that matches name, or null if its not found.
       */
      public static _Fields findByName(String name) {
        return byName.get(name);
      }

      private final short _thriftId;
      private final String _fieldName;

      _Fields(short thriftId, String fieldName) {
        _thriftId = thriftId;
        _fieldName = fieldName;
      }

      public short getThriftFieldId() {
        return _thriftId;
      }

      public String getFieldName() {
        return _fieldName;
      }
    }

    // isset id assignments
    public static final Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> metaDataMap;
    static {
      Map<_Fields, org.apache.thrift.meta_data.FieldMetaData> tmpMap = new EnumMap<_Fields, org.apache.thrift.meta_data.FieldMetaData>(_Fields.class);
      tmpMap.put(_Fields.SUCCESS, new org.apache.thrift.meta_data.FieldMetaData("success", org.apache.thrift.TFieldRequirementType.DEFAULT, 
          new org.apache.thrift.meta_data.FieldValueMetaData(org.apache.thrift.protocol.TType.STRING)));
      metaDataMap = Collections.unmodifiableMap(tmpMap);
      org.apache.thrift.meta_data.FieldMetaData.addStructMetaDataMap(sayHello_result.class, metaDataMap);
    }

    public sayHello_result() {
    }

    public sayHello_result(
      String success)
    {
      this();
      this.success = success;
    }

    /**
     * Performs a deep copy on <i>other</i>.
     */
    public sayHello_result(sayHello_result other) {
      if (other.isSetSuccess()) {
        this.success = other.success;
      }
    }

    public sayHello_result deepCopy() {
      return new sayHello_result(this);
    }

    @Override
    public void clear() {
      this.success = null;
    }

    public String getSuccess() {
      return this.success;
    }

    public sayHello_result setSuccess(String success) {
      this.success = success;
      return this;
    }

    public void unsetSuccess() {
      this.success = null;
    }

    /** Returns true if field success is set (has been assigned a value) and false otherwise */
    public boolean isSetSuccess() {
      return this.success != null;
    }

    public void setSuccessIsSet(boolean value) {
      if (!value) {
        this.success = null;
      }
    }

    public void setFieldValue(_Fields field, Object value) {
      switch (field) {
      case SUCCESS:
        if (value == null) {
          unsetSuccess();
        } else {
          setSuccess((String)value);
        }
        break;

      }
    }

    public Object getFieldValue(_Fields field) {
      switch (field) {
      case SUCCESS:
        return getSuccess();

      }
      throw new IllegalStateException();
    }

    /** Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise */
    public boolean isSet(_Fields field) {
      if (field == null) {
        throw new IllegalArgumentException();
      }

      switch (field) {
      case SUCCESS:
        return isSetSuccess();
      }
      throw new IllegalStateException();
    }

    @Override
    public boolean equals(Object that) {
      if (that == null)
        return false;
      if (that instanceof sayHello_result)
        return this.equals((sayHello_result)that);
      return false;
    }

    public boolean equals(sayHello_result that) {
      if (that == null)
        return false;

      boolean this_present_success = true && this.isSetSuccess();
      boolean that_present_success = true && that.isSetSuccess();
      if (this_present_success || that_present_success) {
        if (!(this_present_success && that_present_success))
          return false;
        if (!this.success.equals(that.success))
          return false;
      }

      return true;
    }

    @Override
    public int hashCode() {
      List<Object> list = new ArrayList<Object>();

      boolean present_success = true && (isSetSuccess());
      list.add(present_success);
      if (present_success)
        list.add(success);

      return list.hashCode();
    }

    @Override
    public int compareTo(sayHello_result other) {
      if (!getClass().equals(other.getClass())) {
        return getClass().getName().compareTo(other.getClass().getName());
      }

      int lastComparison = 0;

      lastComparison = Boolean.valueOf(isSetSuccess()).compareTo(other.isSetSuccess());
      if (lastComparison != 0) {
        return lastComparison;
      }
      if (isSetSuccess()) {
        lastComparison = org.apache.thrift.TBaseHelper.compareTo(this.success, other.success);
        if (lastComparison != 0) {
          return lastComparison;
        }
      }
      return 0;
    }

    public _Fields fieldForId(int fieldId) {
      return _Fields.findByThriftId(fieldId);
    }

    public void read(org.apache.thrift.protocol.TProtocol iprot) throws org.apache.thrift.TException {
      schemes.get(iprot.getScheme()).getScheme().read(iprot, this);
    }

    public void write(org.apache.thrift.protocol.TProtocol oprot) throws org.apache.thrift.TException {
      schemes.get(oprot.getScheme()).getScheme().write(oprot, this);
      }

    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder("sayHello_result(");
      boolean first = true;

      sb.append("success:");
      if (this.success == null) {
        sb.append("null");
      } else {
        sb.append(this.success);
      }
      first = false;
      sb.append(")");
      return sb.toString();
    }

    public void validate() throws org.apache.thrift.TException {
      // check for required fields
      // check for sub-struct validity
    }

    private void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException {
      try {
        write(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(out)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, ClassNotFoundException {
      try {
        read(new org.apache.thrift.protocol.TCompactProtocol(new org.apache.thrift.transport.TIOStreamTransport(in)));
      } catch (org.apache.thrift.TException te) {
        throw new java.io.IOException(te);
      }
    }

    private static class sayHello_resultStandardSchemeFactory implements SchemeFactory {
      public sayHello_resultStandardScheme getScheme() {
        return new sayHello_resultStandardScheme();
      }
    }

    private static class sayHello_resultStandardScheme extends StandardScheme<sayHello_result> {

      public void read(org.apache.thrift.protocol.TProtocol iprot, sayHello_result struct) throws org.apache.thrift.TException {
        org.apache.thrift.protocol.TField schemeField;
        iprot.readStructBegin();
        while (true)
        {
          schemeField = iprot.readFieldBegin();
          if (schemeField.type == org.apache.thrift.protocol.TType.STOP) { 
            break;
          }
          switch (schemeField.id) {
            case 0: // SUCCESS
              if (schemeField.type == org.apache.thrift.protocol.TType.STRING) {
                struct.success = iprot.readString();
                struct.setSuccessIsSet(true);
              } else { 
                org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
              }
              break;
            default:
              org.apache.thrift.protocol.TProtocolUtil.skip(iprot, schemeField.type);
          }
          iprot.readFieldEnd();
        }
        iprot.readStructEnd();

        // check for required fields of primitive type, which can't be checked in the validate method
        struct.validate();
      }

      public void write(org.apache.thrift.protocol.TProtocol oprot, sayHello_result struct) throws org.apache.thrift.TException {
        struct.validate();

        oprot.writeStructBegin(STRUCT_DESC);
        if (struct.success != null) {
          oprot.writeFieldBegin(SUCCESS_FIELD_DESC);
          oprot.writeString(struct.success);
          oprot.writeFieldEnd();
        }
        oprot.writeFieldStop();
        oprot.writeStructEnd();
      }

    }

    private static class sayHello_resultTupleSchemeFactory implements SchemeFactory {
      public sayHello_resultTupleScheme getScheme() {
        return new sayHello_resultTupleScheme();
      }
    }

    private static class sayHello_resultTupleScheme extends TupleScheme<sayHello_result> {

      @Override
      public void write(org.apache.thrift.protocol.TProtocol prot, sayHello_result struct) throws org.apache.thrift.TException {
        TTupleProtocol oprot = (TTupleProtocol) prot;
        BitSet optionals = new BitSet();
        if (struct.isSetSuccess()) {
          optionals.set(0);
        }
        oprot.writeBitSet(optionals, 1);
        if (struct.isSetSuccess()) {
          oprot.writeString(struct.success);
        }
      }

      @Override
      public void read(org.apache.thrift.protocol.TProtocol prot, sayHello_result struct) throws org.apache.thrift.TException {
        TTupleProtocol iprot = (TTupleProtocol) prot;
        BitSet incoming = iprot.readBitSet(1);
        if (incoming.get(0)) {
          struct.success = iprot.readString();
          struct.setSuccessIsSet(true);
        }
      }
    }

  }

}
View Code

到此，这些接口的作用是实现跨平台通信，但是真正的业务逻辑并未实现，所以，要做什么？怎么做？这些详细的设计应该由我们自己来实现，其实现类：

package com.eddy.webapp.thrift;

import org.apache.thrift.TException;

/**
 * Created by eddy on 2015/10/14.
 */
public class HelloWorldServiceImpl implements HelloWorldService.Iface {

    @Override
    public String sayHello(String username) throws TException {
        return "Hi, " + username + ", Welcome to the Thrift world, enjoy it!";
    }
}

4，编辑服务端：

package com.eddy.webapp.thrift;

import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.server.TServer;
import org.apache.thrift.server.TSimpleServer;
import org.apache.thrift.transport.TServerSocket;
import org.apache.thrift.transport.TTransportException;

/**
 * Created by eddy on 2015/10/14.
 */
public class HelloWorldSimpleServer {

    public static final int SERVER_PORT = 8090;

    public void startServer(){
        System.out.println("HelloWorld TSimpleServer start ....");

        try {
            TProcessor tprocessor = new HelloWorldService.Processor<HelloWorldService.Iface>(new HelloWorldServiceImpl());
            // 简单的单线程服务模型，一般用于测试
            TServerSocket serverTransport = new TServerSocket(SERVER_PORT);
            TServer.Args tArgs = new TServer.Args(serverTransport);
            tArgs.processor(tprocessor);
            //注意：客户端必须和服务点使用的协议保持一致。
            tArgs.protocolFactory(new TBinaryProtocol.Factory());
            // tArgs.protocolFactory(new TCompactProtocol.Factory());
            // tArgs.protocolFactory(new TJSONProtocol.Factory());
            TServer server = new TSimpleServer(tArgs);
            server.serve();
        } catch (TTransportException e) {
            System.out.println("Server start error!!!");
            e.printStackTrace();
        }
    }

    public static void main(String[] args){
        HelloWorldSimpleServer server = new HelloWorldSimpleServer();
        server.startServer();
    }

}

5，编写客户端：

package com.eddy.webapp.thrift;

import org.apache.thrift.TException;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransportException;

/**
 * Created by eddy on 2015/10/14.
 */
public class HelloWorldSimpleClient {

    public static final String SERVER_IP = "localhost";
    public static final int SERVER_PORT = 8090;
    public static final int TIMEOUT = 30000;

    public void startClient(String name){
        TSocket transport = null;
        try {
            transport = new TSocket(SERVER_IP, SERVER_PORT, TIMEOUT);
            // 协议要和服务端一致
            TProtocol protocol = new TBinaryProtocol(transport);
            HelloWorldService.Client client = new HelloWorldService.Client(protocol);
            transport.open();
            String result = client.sayHello(name);
            System.out.println("Thrift client result =: " + result);
        } catch (TTransportException e) {
            e.printStackTrace();
        } catch (TException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args){
        HelloWorldSimpleClient client = new HelloWorldSimpleClient();
        client.startClient("Eddy.");
    }
}

到此一个简单的demo完毕：

允许服务端的main()方法，Server一直处于运行过程中，再允许客户端的main()方法结果输出：

Thrift client result =: Hi, Eddy., Welcome to the Thrift world, enjoy it!

 

posted on 2015-10-14 16:27  Eddyer  阅读(401)  评论(0)    收藏  举报

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