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连接 redis
Redis client(support redis portocal) based on ioredis for egg framework
安装
bash
npm i egg-redis --save
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配置
Change ${app_root}/config/plugin.js to enable redis plugin:
javascript
exports.redis = {
enable: true,
package: "egg-redis",
};
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Configure redis information in ${app_root}/config/config.default.js:
Single Client
javascript
config.redis = {
client: {
port: 6379, // Redis port
host: "127.0.0.1", // Redis host
password: "auth",
db: 0,
},
};
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使用方法
service
app/service/redis.js if(this.app.redis)判断是否有启用 redis
javascript
"use strict";
const Service = require("egg").Service;
class RedisService extends Service {
async set(key, value, seconds) {
value = JSON.stringify(value);
if (this.app.redis) {
if (!seconds) {
await this.app.redis.set(key, value);
} else {
await this.app.redis.set(key, value, "EX", seconds);
}
}
}
async get(key) {
if (this.app.redis) {
const data = await this.app.redis.get(key);
if (!data) return;
return JSON.parse(data);
}
}
}
module.exports = RedisService;
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controller
app/controller/default/index.js 如果没有设置 redis 缓存，就去请求数据,再设置缓存
javascript
var topNav = await this.ctx.service.cache.get("index_topNav");
if (!topNav) {
topNav = await this.ctx.model.Nav.find({
position: 1,
});
await this.ctx.service.cache.set("index_topNav", topNav, 60 * 60);
}
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