socket在egg中的使用实例代码详解
config/config.default.js
exports.io = {
init: {},
namespace: {
'/': { //对应router.js里的 of('/')
connectionMiddleware: [ 'auth' ], //对应io/middleware/auth
packetMiddleware: [ 'filter' ],
},
},
};
config/plugin.js
exports.io = {
enable: true,
package: 'egg-socket.io',
};
router.js
io.of('/').route('chat', io.controller.chat.index);
io.of('/').route('message', io.controller.chat.message);
io.of('/').route('user:online', io.controller.chat.online);
app/io
app/io/middleware/auth.js
/**
* Created by bear on 2018/2/12.
*/
const PREFIX = 'room'; //定义房间号
module.exports = app => {
return async (ctx, next) => {
const { app, socket, logger, helper } = ctx;
const id = socket.id;
const nsp = app.io.of('/');
const query = socket.handshake.query;
// 用户信息
const { room, userId } = query; //获取socket链接传过来的参数
const rooms = [ room ];
console.log(room, userId);
const tick = (id, msg) => {
logger.debug('#tick', id, msg);
// 踢出用户前发送消息
socket.emit(id, helper.parseMsg('deny', msg));
// 调用 adapter 方法踢出用户，客户端触发 disconnect 事件
nsp.adapter.remoteDisconnect(id, true, err => {
logger.error(err);
});
};
// 检查房间是否存在，不存在则踢出用户
// 备注：此处 app.redis 与插件无关，可用其他存储代替
const hasRoom = await app.redis.get(`${PREFIX}:${room}`);
console.log(hasRoom,`${PREFIX}:${room}`)
// if (!hasRoom) {
// tick(id, {
// type: 'deleted',
// message: 'deleted, room has been deleted.',
// });
// return;
// }
// 用户加入
logger.debug('#join', room);
socket.join(room);
// 在线列表
nsp.adapter.clients(rooms, (err, clients) => {
// 更新在线用户列表
nsp.to(room).emit('online', {
clients,
action: 'join',
target: 'participator',
message: `User(${id}) joined.`,
});
console.log(123,clients)
});
// socket.emit('connect', 'packet received!');
await next();
console.log('disconnect!');
};
};
app/io/middleware/filter.js
module.exports = (app) => {
return async (ctx, next) => {
// console.log(ctx.packet);
await next();
// console.log('packet response!');
};
};
app/io/controller/chat.js
/**
* Created by bear on 2018/2/12.
*/
module.exports = app => {
class chatController extends app.Controller {
async index() {
this.ctx.socket.emit('res', 'test');
}
async message() { //方法通过 客户端 this.emit（'message',{}）//触发
this.ctx.socket.emit('message', 'test');
const params = this.ctx.args[0];
// this.ctx.service.message.sendPeerMessage(params);
console.log(2,params);
}
async online() {// modelMessage.sendOfflineMessage(socket, data.userId);
}
}
return chatController;
};
总结
以上所述是小编给大家介绍的socket在egg中的使用实例代码详解，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对我们网站的支持！
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