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##Ketty

基于netty实现的服务端Nio MVC业务开发平台,提供性能监控,日志分析,动态扩展的功能。

###ketty-srv模块

基于netty实现支持自定义协议扩展的Nio MVC高性能业务框架

####协议

  • Http
  • Ketty(自定义私有协议)

####基于注解的 mvc

  • @Inject注入
  • @Path 路径支持
  • @Param参数自动注入value

####支持方法调用频率限制RateLimiter

@Action
public class SimpleAction {

    @Inject
    private UserService userService;

    // 每秒最多可调用100次,超过100次丢弃,
	@Rate(value=100)
	@Interceptor(id = "echoInterceptor")
    @Path
    public User getUserByUid(@Param String uid) {
        return userService.getUserByUid(uid);
    }
}

####拦截器 example

@Around
public class EchoInterceptor extends BaseInterceptor {

    private final static Logger LOGGER = LoggerFactory.getLogger(EchoInterceptor.class);

    @Override
    public boolean before() {
        LOGGER.info("==============EchoInterceptor before=========");
        return true;
    }

    @Override
    public boolean after() {
        LOGGER.info("==============EchoInterceptor after=========");
        return true;
    }
}

KettyServer example

// nio mvc 业务server启动类example
new KettyServer.Builder()
                .tcpNoDelay(true)
                .soKeepAlive(true)
                .setHttpProtocol()
                .host("localhost")
                .port(8888)
                .build()
                .start();

// 测试jetty客户端
public class JettClientTest {
	public static ClientSender clientSender = new ClientSender("localhost", 8888);
	public static void main(String[] args) throws Exception {
		KettyRequest request = new KettyRequest();
		request.setUri("/simpleAction/getUserByUid");
		JSONObject params = new JSONObject();
		params.put("uid", "12345677");
		request.setParameter(params);
		String result = clientSender.sendAndWait(request);
		System.out.println("result : " + result);
	}
}

HttpServer example

// nio mvc 业务server启动类example
public class SimpleServer {
    public static void main(String[] args) throws Exception {
         new KettyServer.Builder()
                        .setKettyProtocol()
                        .port(8888)
                        .build()
                        .start();
    }
}

####TODO

  • 支持自定义协议扩展
  • 安全验证
  • 性能优化
  • WebSocket协议的实现

###ketty-client模块

KettyServer高可用NIO客户端

####High availability 支持多个节点,节点不可用自动移除

Client pool

支持连接池

断链自动重连

自动维护心跳

###ketty-codec模块

编解码框架

####KettyRequest

header body
size len uri msgId paramsMap body
short(2byte) short(2byte) string int(4byte) map JSONString

####KettyResponse

header body
size len msgId(消息id) resCode(消息返回码) body
short(2byte) short(2byte) int(4byte) short(2byte) JSONString

###ketty-router模块

服务代理模块,提供路由分发功能

###ketty-monitor模块

性能监控 报警

###ketty-analysis模块

接口统计分析 智能推荐

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