#开发环境

环境准备
windows安装包 下载
注意 es是以来java环境 所以需要安装jdk 支持1.7以上
es-hander下载可视化操作插件

@Document(indexName = "stack", type = "group_user")
public class User {

    @Id
    private String id;
    private String name;   //姓名
    private Integer age;   //年龄
    private String level;  //级别
    private Date entryDate;//时间
    private String mobile; //电话
    private String email;  //邮箱
    private String address;//地址


    public User(String id, String name, Integer age, String level, Date entryDate, String mobile, String email, String address) {
        this.id = id;
        this.name = name;
        this.age = age;
        this.level = level;
        this.entryDate = entryDate;
        this.mobile = mobile;
        this.email = email;
        this.address = address;

    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getLevel() {
        return level;
    }

    public void setLevel(String level) {
        this.level = level;
    }

    public Date getEntryDate() {
        return entryDate;
    }

    public void setEntryDate(Date entryDate) {
        this.entryDate = entryDate;
    }

    public String getMobile() {
        return mobile;
    }

    public void setMobile(String mobile) {
        this.mobile = mobile;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
}

@Service("myServerHandler")
public class MyServerHandler extends ChannelInboundHandlerAdapter {

    private Logger logger = LoggerFactory.getLogger(MyServerHandler.class);

    @Autowired
    private UserService userService;

    /**
     * 当客户端主动链接服务端的链接后，这个通道就是活跃的了。也就是客户端与服务端建立了通信通道并且可以传输数据
     */
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        SocketChannel channel = (SocketChannel) ctx.channel();
        logger.info("链接报告开始");
        logger.info("链接报告信息：有一客户端链接到本服务端");
        logger.info("链接报告IP:{}", channel.localAddress().getHostString());
        logger.info("链接报告Port:{}", channel.localAddress().getPort());
        logger.info("链接报告完毕");
    }

    /**
     * 当客户端主动断开服务端的链接后，这个通道就是不活跃的。也就是说客户端与服务端的关闭了通信通道并且不可以传输数据
     */
    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        logger.info("客户端断开链接{}", ctx.channel().localAddress().toString());
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        //接收msg消息{与上一章节相比，此处已经不需要自己进行解码}
        logger.info(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " 服务端接收到消息：" + JSON.toJSONString(msg));
        //接收数据写入到Elasticsearch
        TransportProtocol transportProtocol = (TransportProtocol) msg;
        userService.save((User) transportProtocol.getObj());
    }

    /**
     * 抓住异常，当发生异常的时候，可以做一些相应的处理，比如打印日志、关闭链接
     */
    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        ctx.close();
        logger.info("异常信息：\r\n" + cause.getMessage());
    }

}

@Component("nettyServer")
public class NettyServer {

    private Logger logger = LoggerFactory.getLogger(NettyServer.class);

    @Resource
    private MyChannelInitializer myChannelInitializer;

    //配置服务端NIO线程组
    private final EventLoopGroup parentGroup = new NioEventLoopGroup(); //NioEventLoopGroup extends MultithreadEventLoopGroup Math.max(1, SystemPropertyUtil.getInt("io.netty.eventLoopThreads", NettyRuntime.availableProcessors() * 2));
    private final EventLoopGroup childGroup = new NioEventLoopGroup();
    private Channel channel;

    public ChannelFuture bing(InetSocketAddress address) {
        ChannelFuture channelFuture = null;
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(parentGroup, childGroup)
                    .channel(NioServerSocketChannel.class)    //非阻塞模式
                    .option(ChannelOption.SO_BACKLOG, 128)
                    .childHandler(myChannelInitializer);

            channelFuture = b.bind(address).syncUninterruptibly();
            channel = channelFuture.channel();
        } catch (Exception e) {
            logger.error(e.getMessage());
        } finally {
            if (null != channelFuture && channelFuture.isSuccess()) {
                logger.info("itstack-demo-netty server start done. {关注明哥，获取源码}");
            } else {
                logger.error("itstack-demo-netty server start error. {关注明哥，获取源码}");
            }
        }
        return channelFuture;
    }

    public void destroy() {
        if (null == channel) return;
        channel.close();
        parentGroup.shutdownGracefully();
        childGroup.shutdownGracefully();
    }

    public Channel getChannel() {
        return channel;
    }

}

public interface UserService {

    void save(User user);

    void deleteById(String id);

    User queryUserById(String id);

    Iterable<User> queryAll();

    Page<User> findByName(String name, PageRequest request);

}

提供一个可拓展的操作实体表的接口

public interface UserRepository extends ElasticsearchRepository<User, String> {

    Page<User> findByName(String name, Pageable pageable);

}

@Service("userService")
public class UserServiceImpl implements UserService {

    private UserRepository dataRepository;

    @Autowired
    public void setDataRepository(UserRepository dataRepository) {
        this.dataRepository = dataRepository;
    }

    @Override
    public void save(User user) {
        dataRepository.save(user);
    }

    @Override
    public void deleteById(String id) {
        dataRepository.deleteById(id);
    }

    @Override
    public User queryUserById(String id) {
        Optional<User> optionalUser = dataRepository.findById(id);
        return optionalUser.get();
    }

    @Override
    public Iterable<User> queryAll() {
        return dataRepository.findAll();
    }

    @Override
    public Page<User> findByName(String name, PageRequest request) {
        return dataRepository.findByName(name, request);
    }

}

@RestController
public class NettyController {

    @Resource
    private NettyServer nettyServer;

    @RequestMapping("/localAddress")
    public String localAddress() {
        return "nettyServer localAddress " + nettyServer.getChannel().localAddress();
    }

}

@SpringBootApplication
public class Application implements CommandLineRunner {

    private Logger logger = LoggerFactory.getLogger(Application.class);

    @Value("${netty.host}")
    private String host;
    @Value("${netty.port}")
    private int port;
    @Resource
    private NettyServer nettyServer;

    public static void main(String[] args) {
        System.setProperty("es.set.netty.runtime.available.processors", "false");
        SpringApplication.run(Application.class, args);
    }

    @Override
    public void run(String... args) throws Exception {
        InetSocketAddress address = new InetSocketAddress(host, port);
        ChannelFuture channelFuture = nettyServer.bing(address);
        Runtime.getRuntime().addShutdownHook(new Thread(() -> nettyServer.destroy()));
        channelFuture.channel().closeFuture().syncUninterruptibly();
    }

}

## 服务端口
server.port = 8080

## Netty服务端配置
netty.host = 127.0.0.1
netty.port = 7397

## Elasticsearch配置｛更换为自己的cluster-name、cluster-nodes｝
spring.data.elasticsearch.cluster-name=es-itstack
spring.data.elasticsearch.cluster-nodes=127.0.0.1:9300
spring.data.elasticsearch.repositories.enabled=true

ApiTest.java *Netty客户端，用于向服务端发送数据

public class ApiTest {

    public static void main(String[] args) {
        System.out.println("hi 微信公众号：关注明哥");
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        try {
            Bootstrap b = new Bootstrap();
            b.group(workerGroup);
            b.channel(NioSocketChannel.class);
            b.option(ChannelOption.AUTO_READ, true);
            b.handler(new ChannelInitializer<SocketChannel>() {
                @Override
                protected void initChannel(SocketChannel channel) throws Exception {
                    //对象传输处理
                    channel.pipeline().addLast(new ObjDecoder(TransportProtocol.class));
                    channel.pipeline().addLast(new ObjEncoder(TransportProtocol.class));
                    // 在管道中添加我们自己的接收数据实现方法
                    channel.pipeline().addLast(new ChannelInboundHandlerAdapter() {
                        @Override
                        public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {

                        }
                    });
                }
            });
            ChannelFuture f = b.connect("127.0.0.1", 7397).sync();
            System.out.println("itstack-demo-netty client start done. {关注明哥，获取源码}");

            TransportProtocol tp1 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "李小明", 1, "T0-1", new Date(), "13566668888", "184172133@qq.com", "北京"));
            TransportProtocol tp2 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "张大明", 2, "T0-2", new Date(), "13566660001", "huahua@qq.com", "南京"));
            TransportProtocol tp3 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "李书鹏", 2, "T1-1", new Date(), "13566660002", "xiaobai@qq.com", "榆树"));
            TransportProtocol tp4 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "韩小雪", 2, "T2-1", new Date(), "13566660002", "xiaobai@qq.com", "榆树"));
            TransportProtocol tp5 = new TransportProtocol(1, new
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