85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
package mongo
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import (
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"context"
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"errors"
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"strings"
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"time"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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"go.mongodb.org/mongo-driver/mongo/readpref"
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)
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type Config struct {
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Uri string
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Username string
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Password string
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Database string
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Timeout int
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}
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var config *Config
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func Init(conf *Config) {
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config = conf
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if config == nil {
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config = &Config{
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Uri: "mongodb://localhost:27017",
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Database: "admin",
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Timeout: 3,
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}
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}
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}
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//New 获取mongo客户端
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//// "mongodb://user:password@localhost:27017"
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func New() (*mongo.Client, error) {
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clientOpts := options.Client().ApplyURI(config.Uri)
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if config.Username != "" && config.Password != "" {
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clientOpts = clientOpts.SetAuth(options.Credential{
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AuthMechanism: "SCRAM-SHA-256",
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AuthSource: config.Database,
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Username: config.Username,
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Password: config.Password,
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})
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}
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(config.Timeout)*time.Second)
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defer cancel()
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return mongo.Connect(ctx, clientOpts)
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}
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func Ping() error {
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client, err := New()
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if err != nil {
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return err
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}
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ctx, cancel := context.WithTimeout(context.Background(), time.Duration(config.Timeout)*time.Second)
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defer cancel()
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defer client.Disconnect(ctx)
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return client.Ping(ctx, readpref.Primary())
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}
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//Collection 获取集合
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func Collection(client *mongo.Client, cname string) (*mongo.Collection, error) {
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collection := client.Database(config.Database).Collection(cname)
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return collection, nil
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}
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//CollectionMulti 支持多数据库直接获取collection
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func CollectionMulti(client *mongo.Client, cname string) (*mongo.Collection, error) {
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name := strings.Split(cname, ".")
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if len(name) != 2 {
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return nil, errors.New("collection名称不正确，请使用[database.collection]方式使用")
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}
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if name[0] == "" || name[1] == "" {
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return nil, errors.New("名称不能为空")
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}
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collection := client.Database(name[0]).Collection(name[1])
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return collection, nil
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}
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