[TOC] ## 注意 ### 同时支持三个数据库需求 #### 在设置 strcut 时,把字段和表名字都设置为大写 ``` type SYS_CONFIG struct { CFG_ID string `xorm:"not null pk default '' VARCHAR(50) " ` CFG_NAME string `xorm:"default '' VARCHAR(100) "` CFG_DATA string `xorm:"default '' VARCHAR(50) "` CFG_TYPE string `xorm:"default '' VARCHAR(50) "` CFG_STATUS int `xorm:"default 1 INT(2) "` } ``` #### 设置名称映射 ``` // 自定义初始化 type tableTolowerMap struct {} func (t tableTolowerMap) Obj2Table(s string) string { return strings.ToLower(s) } func (t tableTolowerMap) Table2Obj(s string) string { return strings.ToLower(s) } Engine.SetTableMapper(tableTolowerMap{}}) Engine.SetColumnMapper(tableTolowerMap{}) ``` ## demo ``` //同一 三大数据库 package main import ( "github.com/go-xorm/xorm" "github.com/go-xorm/core" _ "github.com/go-sql-driver/mysql" _ "github.com/lunny/godbc" _ "github.com/mattn/go-oci8" "log" "os" ) type DbType struct { DbName string DbSource string } type SYS_CONFIG struct { CFG_ID string `xorm:"not null pk default '' VARCHAR(50) " ` CFG_NAME string `xorm:"default '' VARCHAR(100) "` CFG_DATA string `xorm:"default '' VARCHAR(50) "` CFG_TYPE string `xorm:"default '' VARCHAR(50) "` CFG_STATUS int `xorm:"default 1 INT(2) "` } var dbType = []DbType{ {DbName: "mysql", DbSource: "root:www.upsoft01.com@/antdbms?charset=utf8"}, {DbName: "odbc", DbSource: "driver={SQL Server};Server=192.168.186.138;Database=antdbms;uid=sa;pwd=123;"}, //mssql {DbName: "oci8", DbSource: "root/123@192.168.0.120:1521/ORCL"}, } //var index = 0 //mysql //var index = 1 //mssql var index = 2 //oci8 func main() { log.Println("启动数据库数据库引擎 ",dbType[index].DbName) Engine, err := xorm.NewEngine(dbType[index].DbName, dbType[index].DbSource) assert(err,"连接引擎出错") Engine.SetTableMapper(tableTolowerMap{}}) Engine.SetColumnMapper(tableTolowerMap{}) Engine.ShowSQL(true) Engine.SetMaxIdleConns(5) //通过结构体获取单挑条 config :=new(SYS_CONFIG) _,err=Engine.Get(config) assert(err," get is error ") log.Println("通过结构体获取 : ",config,"\n\n") //获取单条 config1 := make(map[string]string) //_,err = Engine.Table("sys_config").Get(&config1) assert(err,"通过数据错误报错 ") log.Println("通过条件获取 :",config1,"\n\n") //获取多条 config2 :=make([]map[string]string,0) err=Engine.Table("sys_config").Find(&config2) assert(err,"获取多条报错 ") log.Println("获取多条",config2,"\n\n") //非struct的单个字段的数组 cfgId :=make([]string,0) err = Engine.Table("sys_config").Cols("CFG_ID").Find(&cfgId) assert(err,"获取个别字段出错 ") log.Println("获取个别字段 ",cfgId,"\n\n") //非struct的多个字段的数组 cfgIdList :=make([][]string,0) err = Engine.Table("sys_config").Cols("CFG_ID","CFG_TYPE").Find(&cfgIdList) assert(err,"获取多个字段出错 ") log.Println("获取多别字段 ",cfgIdList,"\n\n") } func assert(err error,msg string){ if err != nil { log.Println(msg,err) os.Exit(0) } } ```