ch0ice / jt809-tcp-server Goto Github PK

View Code? Open in Web Editor NEW

155.0 4.0 83.0 3.48 MB

parse JTT 809-2011 protocol of ministry of transportation

License: MIT License

Java 100.00%

tcp-server netty jtt809 java

jt809-tcp-server's Introduction

jt809-tcp-server

JT/T809-2011（道路运输车辆卫星定位系统平台数据交换协议）上级服务端

Why

自己在git上找了一下，没有JTT809协议的代码，或是说没有能用的，并且由于JTT809是通用协议，开源以后各位就不需要重复造轮子，可以拿过来填充自己的业务直接使用。

How

本项目使用 spring-boot-2.1.6.RELEASE + netty-4.1.32.Final开发，项目启动后会启动两个端口，分别为一个HTTP端口和一个TCP端口。

为什么要使用spring
- 一是因为spring模块化和方便的配置管理。
- 二是因为可能有外部通过接口请求进行下行命令操作的需求。

What

本项目完全按照JTT 809-2011协议实现上级服务端，解决了TCP粘包拆包问题，数据转义，和数据解析

目前解析了如下数据
- 0x1001 - 主链路登陆
- 0x1200 - 主链路动态信息交换消息
  - 0x1200-0x1201 - 车辆注册
  - 0x1200-0x1202 - 实时定位

PS

目前采用Github flow模式：Fork->PushRequest->Merge(当然也可以直接提交issues)
如果你感觉本项目对你有所帮助，请帮忙点击一下star。

jt809-tcp-server's People

Contributors

Stargazers

Watchers

jt809-tcp-server's Issues

客户端经常报java.io.IOException: Connection reset by peer

堆外内存占用到9G后，运行一段时间日志就会报Connection reset by peer。请问有什么排查解决思路吗
2022/04/12-20:13:09.357 [workServer-5-4] ERROR c.b.j.h.i.ServerByte2MessageInboundHandler - 发生错误.......
java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
at sun.nio.ch.IOUtil.read(IOUtil.java:192)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380)
at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirectByteBuf.java:288)
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:1125)
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:347)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:148)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:682)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:617)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:534)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)
2022/04/12-20:13:09.358 [workServer-5-4] INFO c.b.j.h.i.ServerByte2MessageInboundHandler - 断开客户端连接,客户端信息 :

大佬。这个不支持809 2019的协议吗？

crc校验和数据加解密

请问执行crc校验和数据体加解密的逻辑在哪里？

新手,内存溢出有没有办法解决

java.lang.OutOfMemoryError: Cannot reserve 16777216 bytes of direct buffer memory (allocated: 520249618, limit: 536870912)
at java.base/java.nio.Bits.reserveMemory(Bits.java:178)
at java.base/java.nio.DirectByteBuffer.(DirectByteBuffer.java:121)
at java.base/java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:330)
at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:772)
at io.netty.buffer.PoolArena$DirectArena.newChunk(PoolArena.java:748)
at io.netty.buffer.PoolArena.allocateNormal(PoolArena.java:245)
at io.netty.buffer.PoolArena.allocate(PoolArena.java:215)
at io.netty.buffer.PoolArena.allocate(PoolArena.java:147)
at io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:342)
at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:187)
at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:178)
at io.netty.buffer.AbstractByteBufAllocator.ioBuffer(AbstractByteBufAllocator.java:139)
at io.netty.channel.DefaultMaxMessagesRecvByteBufAllocator$MaxMessageHandle.allocate(DefaultMaxMessagesRecvByteBufAllocator.java:114)
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:147)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:682)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:617)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:534)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:831)
2021/04/29-23:44:45.586 [workServer-5-7] INFO c.c.o.j.h.i.ServerByte2MessageInboundHandler - 断开客户端连接,客户端信息

ch0ice / jt809-tcp-server Goto Github PK

jt809-tcp-server's Introduction

jt809-tcp-server

Why

How

What

PS

jt809-tcp-server's People

Contributors

Stargazers

Watchers

Forkers

jt809-tcp-server's Issues

Recommend Projects

Recommend Topics

Recommend Org