# 4.5 调用MongoDB

# 4.5.1 简介

store/mongo 包是对 gopkg.in/mgo.v2/bson 进行二次封装。

# 4.5.2 配置规范

配置说明

# 4.5.3 用法

访问redis示例

// run: go run main.go --config=config.toml
package main

import (
	"fmt"
	"time"

	"github.com/douyu/jupiter"
	"github.com/douyu/jupiter/pkg/store/mongo"
	"github.com/douyu/jupiter/pkg/xlog"
	"gopkg.in/mgo.v2/bson"
)

// run: go run main.go -config=config.toml
type Engine struct {
	jupiter.Application
}

func NewEngine() *Engine {
	eng := &Engine{}
	if err := eng.Startup(
		eng.exampleMongo,
	); err != nil {
		xlog.Panic("startup", xlog.Any("err", err))
	}
	return eng
}

func main() {
	app := NewEngine()
	if err := app.Run(); err != nil {
		panic(err)
	}
}

func (eng *Engine) exampleMongo() (err error) {
	session := mongo.StdConfig("test").Build()
	defer session.Close()

	// write
	m := make(map[string]interface{}, 0)
	m["dateline"] = time.Now().Unix()
	m["rid"] = 777

	err = session.DB("test").C("test").Insert(m)
	if err != nil {
		panic(err)
	}

	// read
	type MongoData struct {
		Dateline int64 `bson:"dateline"`
		Rid      int64 `bson:"rid"`
	}
	var rawData []MongoData
	err = session.DB("test").C("test").Find(bson.M{"rid": 777}).Sort("-time").All(&rawData)
	if err != nil {
		panic(err)
	}
	fmt.Println("rawData...", rawData)
	return
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62

执行 go run main.go --config=config.toml,可以看到如下图结果 image