接着之前的内容,前面已经讲过很多Golang的基础语法,mysql的使用,redis的使用,也讲了orm框架,如何创建一个webapi 服务等等,感兴趣的可以看看以前的文章,https://www.cnblogs.com/zhangweizhong/category/1275863.html,
今天要来说一说,如何用beego开发web应用。
介绍
beego 是一个快速开发 Go 应用的 HTTP 框架,他可以用来快速开发 API、Web 及后端服务等各种应用,是一个 RESTful 的框架,同时也是一个关注度和使用量都比价高的开源项目。我认为它是go初学者比较容易上手的一门MVC Web框架。
它是由国内团队开发的开源框架,文档基本都是中文,简单易懂。
安装
需要安装 Beego 和 Bee 的开发工具:
$ go get github.com/astaxie/beego
$ go get github.com/beego/bee
注意:
- beege和bee是两个概念。beego是框架,bee是工具,是命令。
- 在安装Beego前,先确认是否将$GOPATH/bin写入GO环境中。
创建应用
创建一个名为webDemo的应用
$ bee new webDemo //创建一个web应用
$ bee api webDemo //创建一个api应用
编译运行
进入webDemo目录中,执行bee run
,就会完成编译、运行:
$ bee run
成功后,打开浏览器访问:http://localhost:8080,可以看到如图:
开发
以上就beego 的安装和运行简单的介绍完了,下面我们就通过订单查询和新增的例子来学习学习如何用beego开发web应用。
一般的 beego 项目的目录如下所示:
├── conf //配置文件
│ └── app.conf
├── controllers //控制器
│ └── default.go
├── main.go
├── models //模型
│ └── models.go
├── routers //路由
│ └──router.go
├── static //静态文件
│ ├── css
│ ├── ico
│ ├── img
│ └── js
└── views //界面
└── index.tpl
conf
在app.conf 中增加数据库连接配置
appname = webDemo
httpport = 8080
runmode = dev
DBConn="root:root@tcp(localhost:3306)/zwz_test?charset=utf8"
controller
在controller目录下,增加pay.go
package controllers
import (
"webDemo/models"
)
func (c *MainController) PayQuery() {
AccountID, _ := c.GetInt64("AccountID1")
payment, _ := models.GetPaymenRec(AccountID)
c.Data["AccountID"] = payment.AccountID
c.Data["PartnerID"] = payment.PartnerID
c.Data["UserID"] = payment.UserID
c.Data["CreateTime"] = payment.CreateTime
c.Data["Amount"] = payment.Amount
c.Data["OuterTradeNo"] = payment.OuterTradeNo
c.Data["Remark"] = payment.Remark
c.Data["Status"] = payment.Status
c.Data["Msg"] = payment.Msg
c.TplName = "query.html"
}
func (c *MainController) PayAdd() {
var payment models.PaymentRecordStr
c.ParseForm(&payment)
pay, _ := models.AddPaymenRec(payment)
c.Data["AccountID"] = pay.AccountID
c.Data["PartnerID"] = pay.PartnerID
c.Data["UserID"] = pay.UserID
c.Data["CreateTime"] = pay.CreateTime
c.Data["Amount"] = pay.Amount
c.Data["OuterTradeNo"] = pay.OuterTradeNo
c.Data["Remark"] = pay.Remark
c.TplName = "query.html"
}
models
1. 在models目录下,增加pay.go
package models
import (
"database/sql"
"errors"
"strconv"
"time"
"github.com/astaxie/beego"
_ "github.com/go-sql-driver/mysql"
)
var Db *sql.DB
type PaymentRecord struct { Id int64 AccountID int64 PartnerID string UserID string CreateTime string Amount float64 OuterTradeNo string Remark string Status int Msg string } type PaymentRecordStr struct { AccountID string PartnerID string UserID string CreateTime string Amount string OuterTradeNo string Remark string } func init() { dbconn := beego.AppConfig.String("DBConn") db, err := sql.Open("mysql", dbconn) if err != nil { return } db.SetMaxOpenConns(2000) db.SetMaxIdleConns(0) db.Ping() Db = db } func Close() { if Db != nil { Db.Close() } } func AddPaymenRec(rec PaymentRecordStr) (PaymentRecord, error) { var isql = "INSERT pay_demo SET account_id=?,partner_id=?,user_id=?,amount=?,outer_tradeno=?,remark=?" AccountID, _ := strconv.ParseInt(rec.AccountID, 10, 64) Amount, _ := strconv.ParseFloat(rec.Amount, 64) response := PaymentRecord{0, AccountID, rec.PartnerID, rec.UserID, rec.CreateTime, Amount, rec.OuterTradeNo, rec.Remark, 0, ""} if Db == nil { return response, errors.New("AddPaymenRec connect mysql failed") } stmt, _ := Db.Prepare(isql) defer stmt.Close() beego.Informational("AddPaymenRec rec=%#v", rec) res, err := stmt.Exec(AccountID, rec.PartnerID, rec.UserID, Amount, rec.OuterTradeNo, rec.Remark) if err == nil { response.Id, _ = res.LastInsertId() response.Status = 1 response.Msg = "已生效" return response, nil } return response, nil } func GetPaymenRec(AccountID int64) (PaymentRecord, error) { var qsql = "SELECT * FROM pay_demo WHERE account_id=?" var response PaymentRecord response.Msg = "失败" if AccountID != 0 { if Db == nil { return response, errors.New("GetPaymenRec connect mysql failed") } stmt, _ := Db.Prepare(qsql) rows, err := stmt.Query(AccountID) defer rows.Close() if err != nil { return response, err } var timedate string for rows.Next() { err = rows.Scan(&response.Id, &response.AccountID, &response.PartnerID, &response.UserID, &timedate, &response.Amount, &response.OuterTradeNo, &response.Remark) if err != nil { return response, err } DefaultTimeLoc := time.Local loginTime, err := time.ParseInLocation("2006-01-02 15:04:05", timedate, DefaultTimeLoc) if err == nil { unix_time := loginTime.Unix() //time to int64 response.CreateTime = time.Unix(unix_time, 0).Format("2006-01-02 15:04:05") response.Status = 2 response.Msg = "成功" return response, err } else { return response, err } } return response, nil } return response, errors.New("GetPaymenRec Requset is non porinter") }
2. 在数据库中,增加pay_demo表
CREATE TABLE `pay_demo` (
`id` int(64) NOT NULL AUTO_INCREMENT,
`account_id` int(64) NOT NULL,
`partner_id` varchar(50) CHARACTER SET utf8 DEFAULT NULL,
`user_id` varchar(50) CHARACTER SET utf8 DEFAULT NULL,
`create_time` datetime DEFAULT CURRENT_TIMESTAMP,
`amount` double DEFAULT '0',
`outer_tradeno` varchar(50) CHARACTER SET utf8 DEFAULT NULL,
`remark` varchar(255) CHARACTER SET utf8 DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5024 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
views
将原有的index.tpl 删除,增加新的index.html 和query.html
index.html
<!DOCTYPE html>
<html>
<head>
<title>webDemo</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<div>
<form action="/query" method="Post">
<div>
GetPaymentBy AccountID:<input type="text" name="AccountID1" />
</div>
<div>
<input type= "submit" name="n" />
</div>
</form>
<br/>
<br/>
<form action="/add" method="Post">
<div>
AccountID:<input type="text" name="AccountID" />
</div>
<div>
PartnerID:<input type="text" name="PartnerID" />
</div>
<div>
UserID :<input type="text" name="UserID" />
</div>
<div>
CreateTime:<input type="text" name="CreateTime" />
</div>
<div>
Amount:<input type="text" name="Amount" />
</div>
<div>
OuterTradeNo:<input type="text" name="OuterTradeNo" />
</div>
<div>
Remark:<input type="text" name="Remark" />
</div>
<div>
<input type= "submit" name="add" value="添加"/>
</div>
</form>
</div>
</body>
</html>
query.html
<!DOCTYPE html>
<html>
<head>
<title>BeegoDemo</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<div>
<div>
Payment:
</div>
<div>
AccountID:{{.AccountID}}
</div>
<div>
PartnerID:{{.PartnerID}}
</div>
<div>
UserID:{{.UserID}}
</div>
<div>
CreateTime:{{.CreateTime}}
</div>
<div>
Amount:{{.Amount}}
</div>
<div>
OuterTradeNo:{{.OuterTradeNo}}
</div>
<div>
Remark:{{.Remark}}
</div>
</div>
</body>
</html>
routers
在router.go 中增加以上新增的2个路由
package routers
import (
"webDemo/controllers"
"github.com/astaxie/beego"
)
func init() {
beego.Router("/query", &controllers.MainController{}, "Post:PayQuery") // 新增PayQuery路由
beego.Router("/add", &controllers.MainController{}, "Post:PayAdd") // 新增PayAdd路由
beego.Router("/", &controllers.MainController{})
}
重新运行
增加完以上代码之后,重新运行webDemo应用,就可以看到我们新增加的订单查询和新增订单的功能。
最后
1. 以上就把beego 的安装给介绍完了。同时也通过简单的订单支付的例子,介绍如何使用beego 开发web应用。
· 2. 这里只是对beego 做一个最基本的介绍,想要详细了解beego 的各种功能,可以去它的官网:_https://beego.me_
3. 完整例子下载:webDemo