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Detailed explanation of the separation of front-end and back-end development of Golang+Nodejs

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Mar 12, 2018 am 09:51 AM

javascript Detailed explanation

This time I will bring you a detailed explanation of the separation of front-end and back-end development using Golang+Nodejs. What are the things to note? Let’s take a look at the following practical cases. 1. Back-end server writes

code:

package mainimport (    "github.com/hprose/hprose-golang/rpc"//<===hprose
    "fmt"
    "database/sql"
    _ "github.com/go-sql-driver/mysql"//<===mysql驱动
    "log")func checkErr(err error) {    if err != nil {
        panic(err)
    }
}
func mysqlTestConnect(str string) string{//数据库查询
    fmt.Print(str)
    db, err := sql.Open("mysql", "root:换成你数据库的密码@tcp(localhost:3306)/test")    if err != nil {        log.Fatalf("Open database error: %s\n", err)
    }
    defer db.Close()
    err = db.Ping()
    checkErr(err)
    rows, err := db.Query("SELECT * FROM t_test")
    checkErr(err)
    var tmp string=""
    for rows.Next() {
        var id int
        var name string
        rows.Columns()
        err = rows.Scan(&id, &name)
        checkErr(err)
        tmp=tmp+"id:"+string(id)+"  name:"+name+"<br/>"
    }    return  tmp
}
func main(){
    server := rpc.NewTCPServer("tcp4://0.0.0.0:10010/")//创建服务具体
    server.AddFunction("客户端调用函数名", mysqlTestConnect)//添加访问函数
    server.Start()//启动}

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2. Front-end server writes

code:

const koa = require(&#39;koa&#39;);//这里以koa 框架为例const app = new koa();var hprose = require("hprose");//hprosevar client = hprose.Client.create("tcp4://127.0.0.1:10010/", [&#39;客户端调用函数名&#39;]);//创建客户端连接app.use(function* () {    var dt= yield new Promise(function (resolve) {
        client.客户端调用函数名("请求参数", function (result) {
            resolve(result);
        })
    });    this.type = &#39;text/html;charset=utf-8&#39;;    this.body = dt;
});
app.listen(3000);

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3. Effect

Browser access 127.0.0.1:3000 address

Detailed explanation of the separation of front-end and back-end development of Golang+Nodejs I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related matters on the php Chinese website article!

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