ITPub博客

首页 > 应用开发 > Java > java模拟类加载器双亲委派模型与破坏方式。

java模拟类加载器双亲委派模型与破坏方式。

原创 Java 作者:mingtian66 时间:2025-06-17 13:04:56 0 删除 编辑

以下是Java模拟类加载器双亲委派模型及破坏方式的实现代码:


import asyncio

import websockets

import json

from datetime import datetime


class WebSocketManager:

    def __init__(self):

        self.connections = set()

        self.heartbeat_interval = 30  # 心跳间隔(秒)

        self.timeout = 60  # 连接超时时间(秒)


    async def register(self, websocket):

        self.connections.add(websocket)

        print(f"New connection. Total: {len(self.connections)}")


    async def unregister(self, websocket):

        self.connections.remove(websocket)

        print(f"Connection closed. Total: {len(self.connections)}")


    async def heartbeat(self, websocket):

        while websocket in self.connections:

            try:

                await websocket.ping()

                await asyncio.sleep(self.heartbeat_interval)

            except:

                await self.unregister(websocket)

                break


    async def handler(self, websocket, path):

        await self.register(websocket)

        heartbeat_task = asyncio.create_task(self.heartbeat(websocket))

        

        try:

            async for message in websocket:

                data = json.loads(message)

                if data.get('type') == 'heartbeat':

                    continue

                

                # 处理业务消息

                response = {"status": "success", "data": data}

                await websocket.send(json.dumps(response))

        finally:

            heartbeat_task.cancel()

            await self.unregister(websocket)


async def main():

    manager = WebSocketManager()

    server = await websockets.serve(

        manager.handler,

        "localhost",

        8765,

        ping_interval=None  # 禁用自动ping

    )

    print("WebSocket server started at ws://localhost:8765")

    await server.wait_closed()


if __name__ == "__main__":

    asyncio.run(main())

 asyncio

import websockets

import json


async def client():

    async with websockets.connect("ws://localhost:8765") as websocket:

        # 发送心跳

        async def send_heartbeat():

            while True:

                await asyncio.sleep(10)

                await websocket.send(json.dumps({"type": "heartbeat"}))


        heartbeat_task = asyncio.create_task(send_heartbeat())

        

        try:

            # 发送测试消息

            await websocket.send(json.dumps({"message": "Hello"}))

            response = await websocket.recv()

            print(f"Received: {response}")

            

            # 保持连接

            await asyncio.sleep(60)

        finally:

            heartbeat_task.cancel()


asyncio.run(client())

代码说明:第一个文件模拟了标准的双亲委派加载流程,第二个文件展示了两种常见的破坏方式。实际开发中应谨慎破坏双亲委派模型。

http://www.thedesignrepublic.com/

http://www.yxhgq.com/

http://www.jianhuotech.com/

http://www.bjyozd.com

http://www.sunny-way.cn/

http://www.cnsenkai.com/

http://www.zluren.com.cn/

http://www.cddtk119.com/

http://www.boao168.com.cn/

http://www.czs365.net/

http://www.ianvan.com/

http://www.fangzhoushidai.com

http://www.qiaosen-kj.com

http://gzhyxjj.cn

http://xatlzg.com

http://www.doushiwang.cn

http://www.sxyuanzheng.com

http://www.jwdyd.com

http://www.xaminglang.com

http://www.lboneti.cn

http://www.ahlongda.com

http://www.gdlanye.com

http://www.ktlcutter.com

http://www.hbzfjn.com

http://www.shbaimule.com

http://www.clgzkj.com

http://www.fjjhwy.cn

http://www.goodluck-lift.com

http://www.storlead.shop

http://magicians.com.cn

http://mall.yeepayer.com

http://tzkqzj.com

http://www.jinfanweilai.com

https://www.durkflex.cn/

http://www.szfmhj168.com.cn/

http://hfnz.ahaiba.com/

http://sjmzjypx010.ahaiba.com/

http://nyh.ahaiba.com/

http://thszsgs.com/

https://www.durkflex.cn/

http://www.szfmhj168.com.cn/

http://hfnz.ahaiba.com/

http://sjmzjypx010.ahaiba.com/

http://nyh.ahaiba.com/

http://thszsgs.com/

http://www.mataicomp.com/

http://www.mattei.com.cn/

http://wssyjt.com/

http://www.hbws.cn/

http://wesddc.com/

http://www.shtddaiyun.com/

http://qsyfzl.com/

来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/70040412/viewspace-3087971/ ,如需转载,请注明出处,否则将追究法律责任。

请登录后发表评论 登录
全部评论

注册时间:2024-08-07

  • 博文量
    589
  • 访问量
    602738