Version 1.5.8 - Add HttpServer.SetBinder

example/bind/main.go

@@ -1,10 +1,15 @@
 package main
 
 import (
+	"encoding/json"
+	"encoding/xml"
+	"errors"
 	"fmt"
 	"github.com/devfeel/dotweb"
 	"github.com/devfeel/dotweb/framework/file"
+	"github.com/devfeel/dotweb/framework/reflects"
 	"strconv"
+	"strings"
 )
 
 func main() {
@@ -22,6 +27,9 @@ func main() {
 	//设置gzip开关
 	//app.HttpServer.SetEnabledGzip(true)
 
+	//设置自定义绑定器
+	app.HttpServer.SetBinder(newUserBinder())
+
 	//设置路由
 	InitRoute(app.HttpServer)
 
@@ -92,3 +100,53 @@ func InitRoute(server *dotweb.HttpServer) {
 	server.Router().GET("/getbind", GetBind)
 	server.Router().POST("/jsonbind", PostJsonBind)
 }
+
+
+type userBinder struct{
+
+}
+
+//Bind decode req.Body or form-value to struct
+func (b *userBinder) Bind(i interface{}, ctx dotweb.Context) (err error) {
+	fmt.Println("UserBind.Bind")
+	req := ctx.Request()
+	ctype := req.Header.Get(dotweb.HeaderContentType)
+	if req.Body == nil {
+		err = errors.New("request body can't be empty")
+		return err
+	}
+	err = errors.New("request unsupported MediaType -> " + ctype)
+	switch {
+	case strings.HasPrefix(ctype, dotweb.MIMEApplicationJSON):
+		err = json.Unmarshal(ctx.Request().PostBody(), i)
+	case strings.HasPrefix(ctype, dotweb.MIMEApplicationXML):
+		err = xml.Unmarshal(ctx.Request().PostBody(), i)
+		//case strings.HasPrefix(ctype, MIMEApplicationForm), strings.HasPrefix(ctype, MIMEMultipartForm),
+		//	strings.HasPrefix(ctype, MIMETextHTML):
+		//	err = reflects.ConvertMapToStruct(defaultTagName, i, ctx.FormValues())
+	default:
+		//check is use json tag, fixed for issue #91
+		tagName := "form"
+		if ctx.HttpServer().ServerConfig().EnabledBindUseJsonTag{
+			tagName = "json"
+		}
+		//no check content type for fixed issue #6
+		err = reflects.ConvertMapToStruct(tagName, i, ctx.Request().FormValues())
+	}
+	return err
+}
+
+//BindJsonBody default use json decode req.Body to struct
+func (b *userBinder) BindJsonBody(i interface{}, ctx dotweb.Context) (err error) {
+	fmt.Println("UserBind.BindJsonBody")
+	if ctx.Request().PostBody() == nil {
+		err = errors.New("request body can't be empty")
+		return err
+	}
+	err = json.Unmarshal(ctx.Request().PostBody(), i)
+	return err
+}
+
+func newUserBinder() *userBinder {
+	return &userBinder{}
+}

server.go

@@ -102,6 +102,11 @@ func (server *HttpServer) SessionConfig() *config.SessionNode {
 	return server.DotApp.Config.Session
 }
 
+// SetBinder set custom Binder on HttpServer
+func (server *HttpServer) SetBinder(binder Binder){
+	server.binder = binder
+}
+
 // ListenAndServe listens on the TCP network address srv.Addr and then
 // calls Serve to handle requests on incoming connections.
 func (server *HttpServer) ListenAndServe(addr string) error {

version.MD

@@ -1,5 +1,16 @@
 ## dotweb版本记录：
 
+#### Version 1.5.8
+* New Feature: Add HttpServer.SetBinder, used to set custom Binder on HttpServer
+* Detail:
+  - Custom binder must implement dotweb.Binder interface
+* Example:
+  ``` golang
+  app.HttpServer.SetBinder(newUserBinder())
+  ```
+* update example/bind
+* 2018-10-24 21:00
+
 #### Version 1.5.7.8
 * Improve Comments about session Maxlifetime
 * Session.StoreConfig.Maxlifetime: session life time, with second