go get -u -v github.com/go-sql-driver/mysql
go get -u -v github.com/jinzhu/gorm`deleted_at` IS NULL因为我的deleted_at是int型,不是timestamp所以只要要这个条件,就查询不出来数据
type DBCoin struct {
Id int32 `json:"id" gorm:"column:id;primary_key;auto_increment"`
Platform string `json:"platform" gorm:"column:platform"`
Source string `json:"source" gorm:"column:source"`
Target string `json:"target" gorm:"column:target"`
Symbol string `json:"symbol" gorm:"column:symbol"`
CreatedAt int32 `json:"created_at" gorm:"column:created_at"`
UpdatedAt int32 `json:"updated_at" gorm:"column:updated_at"`
DeletedAt int32 `json:"deleted_at" gorm:"column:deleted_at;type:int(10)"`
}var coins []DBCoin
# SELECT * FROM `coin` WHERE `coin`.`deleted_at` IS NULL AND ((platform = 'okex') AND (deleted_at = '0'))
err = mysqlDb.Table("coin").
Where("platform = ?", "okex").
Where("deleted_at = ?", 0).
Find(&coins).Error
# 修改之后
# SELECT * FROM `coin` WHERE (platform = 'okex') AND (deleted_at = '0')
err = mysqlDb.Unscoped().Table("coin").
Where("platform = ?", "okex").
Where("deleted_at = ?", 0).
Find(&coins).Error"github.com/jinzhu/gorm"
//这个是mysql的驱动 一定能要引入 否则会出现连接书库失败
_ "github.com/jinzhu/gorm/dialects/mysql"
db, err := gorm.Open("mysql", viper.GetString("database.mysql.host"))
if err != nil {
fmt.Println(err)
panic("--- 数据库连接失败")
}
defer db.Close()
fmt.Println(db)database:
mysql:
host: root:123456@(10.211.55.33:3306)/go_test?charset=utf8&parseTime=True&loc=Local这是因为gorm和laravel差不多会自动维护
created_at和updated_at,所以我们取消这两个字段就行,只需要 注释 gorm.Model 即可
type GoTest struct {
//gorm.Model
Key int
Value int
}
fmt.Printf("%+v\n", db.First(&settings).Value)ab -T 'application/json' -p ab_settings_data -c 4 -n 10000 'http://127.0.0.1:9991/v1/other/settings'
➜ scripts bash ab_settings.sh
This is ApacheBench, Version 2.3 <$Revision: 1807734 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 127.0.0.1 (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests
Server Software:
Server Hostname: 127.0.0.1
Server Port: 9991
Document Path: /v1/other/settings
Document Length: 4348 bytes
Concurrency Level: 4
Time taken for tests: 9.267 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 44650000 bytes
Total body sent: 1510000
HTML transferred: 43480000 bytes
Requests per second: 1079.05 [#/sec] (mean)
Time per request: 3.707 [ms] (mean)
Time per request: 0.927 [ms] (mean, across all concurrent requests)
Transfer rate: 4705.06 [Kbytes/sec] received
159.12 kb/s sent
4864.17 kb/s total
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.1 0 2
Processing: 1 4 1.2 3 19
Waiting: 0 3 1.1 3 15
Total: 1 4 1.2 3 19
Percentage of the requests served within a certain time (ms)
50% 3
66% 4
75% 4
80% 4
90% 5
95% 6
98% 7
99% 8
100% 19 (longest request)This is ApacheBench, Version 2.3 <$Revision: 1807734 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests
Server Software:
Server Hostname: 127.0.0.1
Server Port: 9991
Document Path: /v1/other/settings
Document Length: 4348 bytes
Concurrency Level: 6
Time taken for tests: 35.519 seconds
Complete requests: 100000
Failed requests: 0
Total transferred: 446500000 bytes
Total body sent: 15100000
HTML transferred: 434800000 bytes
Requests per second: 2815.39 [#/sec] (mean)
Time per request: 2.131 [ms] (mean)
Time per request: 0.355 [ms] (mean, across all concurrent requests)
Transfer rate: 12276.09 [Kbytes/sec] received
415.16 kb/s sent
12691.25 kb/s total
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.0 0 7
Processing: 0 2 1.1 2 30
Waiting: 0 2 1.0 2 30
Total: 0 2 1.1 2 30
Percentage of the requests served within a certain time (ms)
50% 2
66% 2
75% 3
80% 3
90% 3
95% 4
98% 5
99% 6
100% 30 (longest request)这里慢我估计是因为nginx要输出access.log的缘故,其实本身nginx的qps是很高的能到1W+吧
This is ApacheBench, Version 2.3 <$Revision: 1807734 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking 127.0.0.1 (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests
Server Software: openresty
Server Hostname: 127.0.0.1
Server Port: 9999
Document Path: /v1/other/settings
Document Length: 4348 bytes
Concurrency Level: 6
Time taken for tests: 72.868 seconds
Complete requests: 100000
Failed requests: 0
Total transferred: 452600000 bytes
Total body sent: 15100000
HTML transferred: 434800000 bytes
Requests per second: 1372.35 [#/sec] (mean)
Time per request: 4.372 [ms] (mean)
Time per request: 0.729 [ms] (mean, across all concurrent requests)
Transfer rate: 6065.69 [Kbytes/sec] received
202.37 kb/s sent
6268.06 kb/s total
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.1 0 7
Processing: 1 4 3.3 4 359
Waiting: 0 4 3.1 3 358
Total: 1 4 3.3 4 359
Percentage of the requests served within a certain time (ms)
50% 4
66% 5
75% 5
80% 6
90% 7
95% 8
98% 10
99% 11
100% 359 (longest request)检查你的模型定义是否column 是否重复了
# 我这里就重复了 CreatedAt int32 `json:"created_at" gorm:"column:created_at"` UpdatedAt int32 `json:"created_at" gorm:"column:created_at"` ``