Skip to content

Commit 4d044a4

Browse files
crossoverJiecrossoverJie
committed
✨ Introducing new features.
1 parent 345ca8d commit 4d044a4

File tree

10 files changed

+346
-1
lines changed

10 files changed

+346
-1
lines changed

‎README.md‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@ Netty 实战相关
99

1010
* [x] [Netty(一) SpringBoot 整合长连接心跳机制](https://crossoverjie.top/2018/05/24/netty/Netty(1)TCP-Heartbeat/)
1111
* [x] [Netty(二) 从线程模型的角度看 Netty 为什么是高性能的？](https://crossoverjie.top/2018/07/04/netty/Netty(2)Thread-model/)
12-
* [ ] 如何解决 TCP 的拆包、粘包？
12+
* [x] [Netty(三) 什么是 TCP 拆、粘包？如何解决？](https://crossoverjie.top/2018/08/03/netty/Netty(3)TCP-Sticky/)
1313

1414

1515
## 安装

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/HeartbeatClient.java‎

Lines changed: 63 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,63 @@
1+
package com.crossoverjie.netty.action;
2+
3+
import com.crossoverjie.netty.action.common.pojo.CustomProtocol;
4+
import com.crossoverjie.netty.action.init.CustomerHandleInitializer;
5+
import io.netty.bootstrap.Bootstrap;
6+
import io.netty.channel.ChannelFuture;
7+
import io.netty.channel.EventLoopGroup;
8+
import io.netty.channel.nio.NioEventLoopGroup;
9+
import io.netty.channel.socket.SocketChannel;
10+
import io.netty.channel.socket.nio.NioSocketChannel;
11+
import org.slf4j.Logger;
12+
import org.slf4j.LoggerFactory;
13+
import org.springframework.beans.factory.annotation.Value;
14+
import org.springframework.stereotype.Component;
15+
16+
import javax.annotation.PostConstruct;
17+
18+
/**
19+
* Function:
20+
*
21+
* @author crossoverJie
22+
* Date: 22/05/2018 14:19
23+
* @since JDK 1.8
24+
*/
25+
@Component
26+
public class HeartbeatClient {
27+
28+
private final static Logger LOGGER = LoggerFactory.getLogger(HeartbeatClient.class);
29+
30+
private EventLoopGroup group = new NioEventLoopGroup();
31+
32+
33+
@Value("${netty.server.port}")
34+
private int nettyPort;
35+
36+
@Value("${netty.server.host}")
37+
private String host;
38+
39+
private SocketChannel channel ;
40+
41+
@PostConstruct
42+
public void start() throws InterruptedException {
43+
Bootstrap bootstrap = new Bootstrap();
44+
bootstrap.group(group)
45+
.channel(NioSocketChannel.class)
46+
.handler(new CustomerHandleInitializer())
47+
;
48+
49+
ChannelFuture future = bootstrap.connect(host, nettyPort).sync();
50+
if (future.isSuccess()) {
51+
LOGGER.info("启动 Netty 成功");
52+
}
53+
channel = (SocketChannel) future.channel();
54+
}
55+
56+
/**
57+
* 发送消息
58+
* @param customProtocol
59+
*/
60+
public void sendMsg(CustomProtocol customProtocol){
61+
channel.writeAndFlush(customProtocol) ;
62+
}
63+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/HeartbeatClientApplication.java‎

Lines changed: 27 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,27 @@
1+
package com.crossoverjie.netty.action;
2+
3+
import org.slf4j.Logger;
4+
import org.slf4j.LoggerFactory;
5+
import org.springframework.boot.CommandLineRunner;
6+
import org.springframework.boot.SpringApplication;
7+
import org.springframework.boot.autoconfigure.SpringBootApplication;
8+
9+
/**
10+
* @author crossoverJie
11+
*/
12+
@SpringBootApplication
13+
public class HeartbeatClientApplication implements CommandLineRunner{
14+
15+
private final static Logger LOGGER = LoggerFactory.getLogger(HeartbeatClientApplication.class);
16+
17+
18+
19+
public static void main(String[] args) {
20+
SpringApplication.run(HeartbeatClientApplication.class, args);
21+
LOGGER.info("启动 Client 成功");
22+
}
23+
24+
@Override
25+
public void run(String... args) throws Exception {
26+
}
27+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/config/SwaggerConfig.java‎

Lines changed: 42 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,42 @@
1+
package com.crossoverjie.netty.action.config;
2+
3+
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
4+
import org.springframework.context.annotation.Bean;
5+
import org.springframework.context.annotation.Configuration;
6+
import springfox.documentation.builders.ApiInfoBuilder;
7+
import springfox.documentation.builders.PathSelectors;
8+
import springfox.documentation.builders.RequestHandlerSelectors;
9+
import springfox.documentation.service.ApiInfo;
10+
import springfox.documentation.spi.DocumentationType;
11+
import springfox.documentation.spring.web.plugins.Docket;
12+
import springfox.documentation.swagger2.annotations.EnableSwagger2;
13+
14+
15+
@Configuration
16+
@EnableSwagger2
17+
/** 是否打开swagger **/
18+
@ConditionalOnExpression("'${swagger.enable}' == 'true'")
19+
public class SwaggerConfig {
20+
21+
22+
@Bean
23+
public Docket createRestApi() {
24+
return new Docket(DocumentationType.SWAGGER_2)
25+
.apiInfo(apiInfo())
26+
.select()
27+
.apis(RequestHandlerSelectors.basePackage("com.crossoverjie.netty.action.client.controller"))
28+
.paths(PathSelectors.any())
29+
.build();
30+
}
31+
32+
private ApiInfo apiInfo() {
33+
return new ApiInfoBuilder()
34+
.title("sbc order api")
35+
.description("sbc order api")
36+
.termsOfServiceUrl("http://crossoverJie.top")
37+
.contact("crossoverJie")
38+
.version("1.0.0")
39+
.build();
40+
}
41+
42+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/controller/IndexController.java‎

Lines changed: 49 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,49 @@
1+
package com.crossoverjie.netty.action.controller;
2+
3+
import com.crossoverjie.netty.action.HeartbeatClient;
4+
import com.crossoverjie.netty.action.vo.req.SendMsgReqVO;
5+
import com.crossoverjie.netty.action.vo.res.SendMsgResVO;
6+
import com.crossoverjie.netty.action.common.enums.StatusEnum;
7+
import com.crossoverjie.netty.action.common.pojo.CustomProtocol;
8+
import com.crossoverjie.netty.action.common.res.BaseResponse;
9+
import io.swagger.annotations.ApiOperation;
10+
import org.springframework.beans.factory.annotation.Autowired;
11+
import org.springframework.stereotype.Controller;
12+
import org.springframework.web.bind.annotation.RequestBody;
13+
import org.springframework.web.bind.annotation.RequestMapping;
14+
import org.springframework.web.bind.annotation.ResponseBody;
15+
16+
/**
17+
* Function:
18+
*
19+
* @author crossoverJie
20+
* Date: 22/05/2018 14:46
21+
* @since JDK 1.8
22+
*/
23+
@Controller
24+
@RequestMapping("/")
25+
public class IndexController {
26+
27+
@Autowired
28+
private HeartbeatClient heartbeatClient ;
29+
30+
/**
31+
* 向服务端发消息
32+
* @param sendMsgReqVO
33+
* @return
34+
*/
35+
@ApiOperation("发送消息")
36+
@RequestMapping("sendMsg")
37+
@ResponseBody
38+
public BaseResponse<SendMsgResVO> sendMsg(@RequestBody SendMsgReqVO sendMsgReqVO){
39+
BaseResponse<SendMsgResVO> res = new BaseResponse();
40+
heartbeatClient.sendMsg(new CustomProtocol(122,sendMsgReqVO.getMsg())) ;
41+
42+
SendMsgResVO sendMsgResVO = new SendMsgResVO() ;
43+
sendMsgResVO.setMsg("OK") ;
44+
res.setCode(StatusEnum.SUCCESS.getCode()) ;
45+
res.setMessage(StatusEnum.SUCCESS.getMessage()) ;
46+
res.setDataBody(sendMsgResVO) ;
47+
return res ;
48+
}
49+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/encode/HeartbeatEncode.java‎

Lines changed: 23 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,23 @@
1+
package com.crossoverjie.netty.action.encode;
2+
3+
import com.crossoverjie.netty.action.common.pojo.CustomProtocol;
4+
import io.netty.buffer.ByteBuf;
5+
import io.netty.channel.ChannelHandlerContext;
6+
import io.netty.handler.codec.MessageToByteEncoder;
7+
8+
/**
9+
* Function:编码
10+
*
11+
* @author crossoverJie
12+
* Date: 17/05/2018 19:07
13+
* @since JDK 1.8
14+
*/
15+
public class HeartbeatEncode extends MessageToByteEncoder<CustomProtocol> {
16+
@Override
17+
protected void encode(ChannelHandlerContext ctx, CustomProtocol msg, ByteBuf out) throws Exception {
18+
19+
out.writeLong(msg.getHeader()) ;
20+
out.writeBytes(msg.getContent().getBytes()) ;
21+
22+
}
23+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/handle/EchoClientHandle.java‎

Lines changed: 66 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,66 @@
1+
package com.crossoverjie.netty.action.handle;
2+
3+
import com.crossoverjie.netty.action.common.pojo.CustomProtocol;
4+
import io.netty.buffer.ByteBuf;
5+
import io.netty.buffer.Unpooled;
6+
import io.netty.channel.ChannelHandlerContext;
7+
import io.netty.channel.SimpleChannelInboundHandler;
8+
import io.netty.handler.timeout.IdleState;
9+
import io.netty.handler.timeout.IdleStateEvent;
10+
import io.netty.util.CharsetUtil;
11+
import org.slf4j.Logger;
12+
import org.slf4j.LoggerFactory;
13+
14+
/**
15+
* Function:
16+
*
17+
* @author crossoverJie
18+
* Date: 16/02/2018 18:09
19+
* @since JDK 1.8
20+
*/
21+
public class EchoClientHandle extends SimpleChannelInboundHandler<ByteBuf> {
22+
23+
private final static Logger LOGGER = LoggerFactory.getLogger(EchoClientHandle.class);
24+
25+
26+
@Override
27+
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
28+
29+
if (evt instanceof IdleStateEvent){
30+
IdleStateEvent idleStateEvent = (IdleStateEvent) evt ;
31+
32+
if (idleStateEvent.state() == IdleState.WRITER_IDLE){
33+
LOGGER.info("已经 10 秒没有发送信息！");
34+
//向客户端发送消息
35+
CustomProtocol customProtocol = new CustomProtocol(45678L,"ping") ;
36+
ctx.writeAndFlush(Unpooled.copiedBuffer(customProtocol.toString(), CharsetUtil.UTF_8)) ;
37+
}
38+
39+
40+
}
41+
42+
super.userEventTriggered(ctx, evt);
43+
}
44+
45+
@Override
46+
public void channelActive(ChannelHandlerContext ctx) throws Exception {
47+
48+
//客户端和服务端建立连接时调用
49+
LOGGER.info("已经建立了联系。。");
50+
}
51+
52+
@Override
53+
protected void channelRead0(ChannelHandlerContext channelHandlerContext, ByteBuf in) throws Exception {
54+
55+
//从服务端收到消息时被调用
56+
LOGGER.info("客户端收到消息={}",in.toString(CharsetUtil.UTF_8)) ;
57+
58+
}
59+
60+
@Override
61+
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
62+
//异常时断开连接
63+
cause.printStackTrace() ;
64+
ctx.close() ;
65+
}
66+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/init/CustomerHandleInitializer.java‎

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,26 @@
1+
package com.crossoverjie.netty.action.init;
2+
3+
import com.crossoverjie.netty.action.encode.HeartbeatEncode;
4+
import com.crossoverjie.netty.action.handle.EchoClientHandle;
5+
import io.netty.channel.Channel;
6+
import io.netty.channel.ChannelInitializer;
7+
import io.netty.handler.timeout.IdleStateHandler;
8+
9+
/**
10+
* Function:
11+
*
12+
* @author crossoverJie
13+
* Date: 23/02/2018 22:47
14+
* @since JDK 1.8
15+
*/
16+
public class CustomerHandleInitializer extends ChannelInitializer<Channel> {
17+
@Override
18+
protected void initChannel(Channel ch) throws Exception {
19+
ch.pipeline()
20+
//10 秒没发送消息
21+
.addLast(new IdleStateHandler(0, 10, 0))
22+
.addLast(new HeartbeatEncode())
23+
.addLast(new EchoClientHandle())
24+
;
25+
}
26+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/vo/req/SendMsgReqVO.java‎

Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,29 @@
1+
package com.crossoverjie.netty.action.vo.req;
2+
3+
import com.crossoverjie.netty.action.common.req.BaseRequest;
4+
import io.swagger.annotations.ApiModelProperty;
5+
6+
import javax.validation.constraints.NotNull;
7+
8+
/**
9+
* Function:
10+
*
11+
* @author crossoverJie
12+
* Date: 2018/05/21 15:56
13+
* @since JDK 1.8
14+
*/
15+
public class SendMsgReqVO extends BaseRequest {
16+
17+
@NotNull(message = "msg 不能为空")
18+
@ApiModelProperty(required = true, value = "msg", example = "hello")
19+
private String msg ;
20+
21+
public String getMsg() {
22+
return msg;
23+
}
24+
25+
public void setMsg(String msg) {
26+
this.msg = msg;
27+
}
28+
29+
}

‎netty-action-heartbeat-client/src/main/java/com/crossoverjie/netty/action/vo/res/SendMsgResVO.java‎

Lines changed: 20 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,20 @@
1+
package com.crossoverjie.netty.action.vo.res;
2+
3+
/**
4+
* Function:
5+
*
6+
* @author crossoverJie
7+
* Date: 2017/6/26 15:43
8+
* @since JDK 1.8
9+
*/
10+
public class SendMsgResVO {
11+
private String msg ;
12+
13+
public String getMsg() {
14+
return msg;
15+
}
16+
17+
public void setMsg(String msg) {
18+
this.msg = msg;
19+
}
20+
}

0 commit comments

Comments
 (0)