ICE应用实例

本文接上篇博文《ICE通信框架》如果你还没有接触过ice请先阅读我的上篇博文http://blog.csdn.net/liuzhoulong/archive/2011/03/04/6223450.aspx

 

本文将结合实际项目，做一个基于ice的实际项目实例应用,该实例完成客户端调用服务端接口完成消息发送，计算的功能。

1,创建java项目ICEServer，导入ice.jar.

2,在项目下创建slice文件夹，编写model.ice,service.ice,service2.ice文件，其内容如下

model.ice

 

#ifndef _MODEL#define _MODEL

module com{   module alan   {     module generated     {         module model         {                 /**定义整型数组**/                    sequence<int> IntegerArray;

                    /**自定义Map类型**/                    dictionary<string, string> CustomMap;

                    /**消息类型**/                    enum MessageType {ERROR,INFO,WARNING};

                    /**计算操作类型**/                    enum CalcType {Adds,Subtract,Multiply,Divide};                           /**消息的操作类型**/                    enum ActionType {Add,Remove,Stop,Start,Pause};                                     /** 消息结构 **/                    ["java:getset"]                    struct Message {                         /**消息类型**/                         MessageType type;                         /**消息类型**/                         ActionType action;                         /**相关id**/                         IntegerArray relatedIds;                         /**扩展属性**/                         CustomMap extention;                    };            };        }; };};#endif

 

 

service.ice

 

#ifndef _GENERATED#define _GENERATED

#include <model.ice>

module com{   module alan   {       module generated       {         interface MessageServiceIce         {

             /**              *  向ice服务发送信息              *  @param message 消息内容              *  @return true 成功  false 失败              */                string sendMessage(model::Message msg);             };   };   };};#endif

service2.ice

 

#ifndef _GENERATED#define _GENERATED

#include <model.ice>

module com{   module alan   {       module generated       {         interface CalcServiceIce         {

             /**              *  服务端计算方法              *  @param d1 计算数1     *  @param d2 计算数2     *  @param type 计算方式              *  @return true 成功  false 失败              */                double calc(double d1, double d2, model::CalcType cal);             };   };   };};#endif

 3.dos环境下执行

          cd E:/workspace/ICEService/slice

          E:/Ice-3.3.0/bin/slice2java -I. --output-dir=../src *.ice //生产代码

          E:/Ice-3.3.0/bin/slice2html -I. --output-dir=doc *.ice//生产doc文档，可以忽略

   将生产generated包下代码以jar包方式导出icetest.jar，并在项目中建立lib目录放入其中（把ice.jar也放入lib下，以备后用），可以删除其生产代码，以jar方式调用其代码。

 4,编写发布接口实现代码和服务器端代码

CalcServiceIceImpl .java实现数学计算：

 

public class CalcServiceIceImpl extends _CalcServiceIceDisp {

 public double calc(double num1, double num2, CalcType type,   Current arg3) {  double re = 0.0d;  switch (type) {  case Adds:   re = num1 + num2;   break;  case Subtract:   re = num1 - num2;   break;  case Multiply:   re = num1 * num2;   break;  case Divide:   re = num1 / num2;   break;  default:   break;  }  return re; }

}

MessageServiceIceImpl .java实现发送消息

 

public class MessageServiceIceImpl extends _MessageServiceIceDisp {   public String sendMessage(Message msg, Current __current) {  String str = msg.getType() +" "+ msg.getAction()+" " + Arrays.toString(msg.getRelatedIds());     return str; }}

IceService .java实现服务器端接口注册：

 

public class IceService {

 public static void main(String[] args){   int status = 0;      Communicator ic = null;   try{

   ic = Ice.Util.initialize(args);   Ice.ObjectAdapter adapter = ic.createObjectAdapterWithEndpoints("testAdapter", "default -h *");   ObjectImpl object1 = new MessageServiceIceImpl();   ObjectImpl object2 = new CalcServiceIceImpl();

   adapter.add(object1, ic.stringToIdentity("messageService"));   adapter.add(object2, ic.stringToIdentity("calcService"));   adapter.activate();     ic.waitForShutdown();     } catch (Ice.LocalException e) {    e.printStackTrace();    status = 1;   } catch (Exception e) {    System.err.println(e.getMessage());    status = 1;   }  if (ic != null) {   try {    ic.destroy();   } catch (Exception e) {    System.err.println(e.getMessage());    status = 1;   }  }  System.exit(status);    }}

5，发布接口

  在项目下创建deploy文件夹，在其下创建config-ice.grid配置文件

IceGrid.InstanceName=IceTestServiceGrid

## The IceGrid locator proxy.#Ice.Default.Locator=IceTestServiceGrid/Locator:tcp -p 10000

## IceGrid registry configuration.#IceGrid.Registry.Client.Endpoints=tcp -p 10000IceGrid.Registry.Server.Endpoints=tcpIceGrid.Registry.Internal.Endpoints=tcpIceGrid.Registry.Data=db/rescenter_registryIceGrid.Registry.PermissionsVerifier=IceTestServiceGrid/NullPermissionsVerifierIceGrid.Registry.AdminPermissionsVerifier=IceTestServiceGrid/NullPermissionsVerifierIceGrid.Registry.SSLPermissionsVerifier=IceTestServiceGrid/NullSSLPermissionsVerifierIceGrid.Registry.AdminSSLPermissionsVerifier=IceTestServiceGrid/NullSSLPermissionsVerifier

## Dummy username and password for icegridadmin.#IceGridAdmin.Username=fooIceGridAdmin.Password=bar

#set server active Connection ManagermentIce.ACM.Server=60## IceGrid node configuration.#

IceGrid.Node.Name=node1IceGrid.Node.Endpoints=tcpIceGrid.Node.Data=db/node1IceGrid.Node.CollocateRegistry=1

IceGrid.Node.Trace.Activator=1IceGrid.Node.Trace.Adapter=2IceGrid.Node.Trace.Server=3

 根据需要在当前目录下创建db/node1，db/rescenter_registry文件夹

创建application.xml文件

<icegrid> <application name="icetest">  <server-template id="icetest-server-template">   <parameter name="index" />   <server id="rescenter_${index}" exe="C:/Program Files/Java/jdk1.6.0_10/bin/java" activation="on-demand">    <!---server -Xms128m -Xmx256m -d64 -XX:PermSize=128m-->    <option>-classpath</option>    <option>E:/workspace/ICEServer/bin</option>    <option>-Djava.ext.dirs=E:/workspace/ICEServer/lib</option>    <option>-server</option>    <option>com.alan.ice.IceService</option>    <adapter name="testAdapter" endpoints="tcp" replica-group="ReplicatedTestAdapter" />    <property name="Ice.ThreadPool.Server.SizeMax" value="3000" />   </server>  </server-template>

  <replica-group id="ReplicatedTestAdapter">  <load-balancing type="adaptive" load-sample="1" n-replicas="1" />   <object identity="messageService" type="::com::alan::ice::MessageServiceIceImpl" />   <object identity="calcService" type="::com::alan::ice::CalcServiceIceImpl" />  </replica-group>  <node name="node1">   <server-instance template="icetest-server-template" index="1" />  </node> </application>

</icegrid>

创建start_server.bat

path=%path%;E:/Ice-3.3.0/binicegridnode --Ice.Config=config-ice.grid --deploy application.xml pause

创建完成后就可以双击start_server.bat来启动服务了

6，创建客户端调用项目ICEClient，导入ice.jar以及前面生产的icetest.jar,在项目下创建IceClient .java

public class IceClient {

   public static void main(String[] args){    int status = 0;      Communicator ic = null;      try{       String str = String.format("%s:%s -h %s -p %s", "IceTestServiceGrid/Locator","tcp" ,"localhost", "10000");       InitializationData localInitializationData = new InitializationData();       localInitializationData.properties = Util.createProperties();       localInitializationData.properties.setProperty("Ice.Default.Locator", str);       ic = Util.initialize(localInitializationData);          MessageServiceIcePrx messageclient = MessageServiceIcePrxHelper.checkedCast(ic.stringToProxy("messageService"));          CalcServiceIcePrx calcclient = CalcServiceIcePrxHelper.checkedCast(ic.stringToProxy("calcService"));            if (messageclient == null || calcclient == null )           throw new Error("Invalid proxy");           Map<String ,String > map = new HashMap<String, String>();       Message msg = new Message(MessageType.INFO, ActionType.Add,new int[]{1},map);       System.out.println(messageclient.sendMessage(msg));//调用接口完成消息发送       System.out.println(calcclient.calc(12, 4, CalcType.Adds));//调用接口完成数学计算    } catch (Ice.LocalException e) {      e.printStackTrace();      status = 1;    } catch (Exception e) {    System.err.println(e.getMessage());    status = 1;   }   if (ic != null) {   try {    ic.destroy();   } catch (Exception e) {    System.err.println(e.getMessage());    status = 1;   }  }     System.exit(status); }}

7，执行IceClient ,控制台输出

 

INFO Add [1]16.0

 

到此调用成功,实例完成。