本篇內(nèi)容主要講解“如何用golang仿spring ioc/aop實(shí)現(xiàn)藍(lán)圖效果”，感興趣的朋友不妨來(lái)看看。本文介紹的方法操作簡(jiǎn)單快捷，實(shí)用性強(qiáng)。下面就讓小編來(lái)帶大家學(xué)習(xí)“如何用golang仿spring ioc/aop實(shí)現(xiàn)藍(lán)圖效果”吧!
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Spring的主要特性： 1. 控制反轉(zhuǎn)（Inversion of Control, IoC） 2. 面向容器 3. 面向切面（AspectOriented Programming, AOP） 源碼gitee地址： https://gitee.com/ioly/learning.gooop 原文鏈接： https://my.oschina.net/ioly
參考spring常用注解，使用golang編寫“基于注解的靜態(tài)代碼增強(qiáng)器/生成器”
配置： ComponentScan，Configuration, Bean
Bean聲明：Component, Service, Controller
Bean注入：Autowried
AOP注解：Before, After, Around, PointCut
前兩天都是在整外圍接口，沒(méi)說(shuō)清楚到底要搞啥
今天以@RestController為例，把項(xiàng)目目標(biāo)理清楚：
以gin框架為基礎(chǔ)，描述一個(gè)訂單CRUD服務(wù)
以@RestController為例，手寫增強(qiáng)前后的代碼，描繪如何增強(qiáng)
增強(qiáng)前，應(yīng)當(dāng)盡可能簡(jiǎn)潔，降低框架侵入性
增強(qiáng)后，與框架很好的結(jié)合，把臟活累活默默干好
OrderController: 訂單服務(wù)控制器
OrderController_Enhanced：增強(qiáng)后的訂單服務(wù)控制器
添加SetOrderService方法以便依賴注入
添加xxx_Enhanced方法，以集成到gin框架
添加RegisterRestController方法，以注冊(cè)到Bean容器
添加init()方法，以便Bean容器引用
IOrderService：訂單持久化服務(wù)接口
MockOrderService：訂單持久化服務(wù)的實(shí)現(xiàn)，碼略
dto/, entity/: 訂單服務(wù)的實(shí)體類和數(shù)值類，碼略
IBeanRegistry：bean注冊(cè)表接口
IRestController：RESTFul控制器接口
IControllerRegistry：RESTFul控制器注冊(cè)表及其默認(rèn)實(shí)現(xiàn)
訂單服務(wù)控制器
重慶分公司
重慶分公司
package controller
import (
"learning/gooop/spring/demo/order/dto"
"learning/gooop/spring/demo/order/entity"
"learning/gooop/spring/demo/order/service"
)
// OrderController handles rest requests for CRUD orders
// @RestController
// @RequestMapping path=/order
type OrderController struct {
@Autowried
orderService service.IOrderService
}
// Save create or update an order
// @PostMapping
func (me *OrderController) Save(head *entity.OrderHeadEntity, items []*entity.OrderItemEntity) error {
return me.orderService.Save(head, items)
}
// View gets order and order items
// @GetMapping
func (me *OrderController) View(orderID int) (error, *dto.OrderDTO) {
return me.orderService.Get(orderID)
}
// Query query order headers by custom conditions
// @GetMapping
func (me *OrderController) Query(customerID int, statusFlag int, dateFrom string, dateTo string, pageNO int, pageSize int) (error, []*dto.OrderHeadDTO) {
return me.orderService.Query(customerID, statusFlag, dateFrom, dateTo, pageNO, pageSize)
}增強(qiáng)后的訂單服務(wù)控制器
添加SetOrderService方法以便依賴注入
添加xxx_Enhanced方法，以集成到gin框架
添加RegisterRestController方法，以注冊(cè)到Bean容器
添加init()方法，以便Bean容器引用
package controller
import (
"github.com/gin-gonic/gin"
"learning/gooop/spring/demo/framework/bean/controller"
"learning/gooop/spring/demo/order/dto"
"learning/gooop/spring/demo/order/entity"
"learning/gooop/spring/demo/order/service"
"net/http"
)
// OrderController_Enhanced handles rest requests for CRUD orders
// RestController
// RequestMapping path=/order
type OrderController_Enhanced struct {
// Autowired
orderService service.IOrderService
}
// SetOrderService is auto generated setter method for injecting service.IOrderService into me.orderService
func (me *OrderController_Enhanced) SetOrderService(it interface{}) {
me.orderService = it.(service.IOrderService)
}
// Save create or update an order
// PostMapping
func (me *OrderController_Enhanced) Save(head *entity.OrderHeadEntity, items []*entity.OrderItemEntity) error {
return me.orderService.Save(head, items)
}
// OrderController_Save_ParamsDTO is auto generated struct for wrapping parameters of OrderController.Save
type OrderController_Save_ParamsDTO struct {
Order *entity.OrderHeadEntity
Items []*entity.OrderItemEntity
}
// View_Enhanced is the enhanced version of Save
func (me *OrderController_Enhanced) Save_Enhanced(c *gin.Context) {
r := new(OrderController_Save_ParamsDTO)
e := c.BindJSON(r)
if e != nil {
c.JSON(http.StatusBadRequest, gin.H{"ok": false, "error": e.Error()})
return
}
e = me.Save(r.Order, r.Items)
if e != nil {
c.JSON(http.StatusInternalServerError, gin.H{"ok": false, "error": e.Error()})
return
}
c.JSON(http.StatusOK, gin.H{"ok": true})
}
// View gets order and order items
// GetMapping
func (me *OrderController_Enhanced) View(orderID int) (error, *dto.OrderDTO) {
return me.orderService.Get(orderID)
}
// View_Enhanced is the enhanced version of View
func (me *OrderController_Enhanced) View_Enhanced(c *gin.Context) {
id := c.GetInt("id")
e, d := me.View(id)
if e != nil {
c.JSON(http.StatusInternalServerError, gin.H{"ok": false, "error": e.Error()})
}
c.JSON(http.StatusOK, d)
}
// Query query order headers by custom conditions
// GetMapping
func (me *OrderController_Enhanced) Query(customerID int, statusFlag int, dateFrom string, dateTo string, pageNO int, pageSize int) (error, []*dto.OrderHeadDTO) {
return me.orderService.Query(customerID, statusFlag, dateFrom, dateTo, pageNO, pageSize)
}
// OrderController_Query_ParamsDTO is auto generated struct for wrapping parameters of PagedQuery
type OrderController_Query_ParamsDTO struct {
CustomerID int
StatusFlag int
DateFrom string
DateTO string
PageNO int
PageSize int
}
// Query_Enhanced is the enhanced version of PagedQuery
func (me *OrderController_Enhanced) Query_Enhanced(c *gin.Context) {
r := new(OrderController_Query_ParamsDTO)
e := c.Bind(r)
if e != nil {
c.JSON(http.StatusBadRequest, gin.H{"ok": false, "error": e.Error()})
return
}
e, d := me.Query(r.CustomerID, r.StatusFlag, r.DateFrom, r.DateTO, r.PageNO, r.PageSize)
if e != nil {
c.JSON(http.StatusInternalServerError, gin.H{"ok": false, "error": e.Error()})
return
}
c.JSON(http.StatusOK, gin.H{"ok": true, "data": d})
}
// RegisterRestController is auto generated to implements controller.IRestController interface
func (me *OrderController_Enhanced) RegisterRestController(r *gin.Engine) {
r.POST("/order/save", me.Save_Enhanced)
r.GET("/order/view", me.View_Enhanced)
r.GET("/order/query", me.Query_Enhanced)
}
// init is auto generated to register OrderController_Enhanced into controller.ControllerRegistry
func init() {
it := new(OrderController_Enhanced)
controller.ControllerRegistry.Register(it)
}訂單持久化服務(wù)接口
package service
import (
"learning/gooop/spring/demo/order/dto"
"learning/gooop/spring/demo/order/entity"
)
type IOrderService interface {
Save(head *entity.OrderHeadEntity, items []*entity.OrderItemEntity) error
Get(orderID int) (error, *dto.OrderDTO)
Query(customerID int, statusFlag int, dateFrom string, dateTo string, pageNO int, pageSize int) (error, []*dto.OrderHeadDTO)
}bean注冊(cè)表接口
package bean
type IBeanRegistry interface {
All() []interface{}
}RESTFul控制器接口
package controller
import "github.com/gin-gonic/gin"
type IRestController interface {
RegisterRestController(r *gin.Engine)
}RESTFul控制器注冊(cè)表及其默認(rèn)實(shí)現(xiàn)
package controller
import (
"github.com/gin-gonic/gin"
"learning/gooop/spring/demo/framework/bean"
"sync"
)
type IControllerRegistry interface {
bean.IBeanRegistry
Register(it IRestController)
Apply(r *gin.Engine)
}
type tDefaultControllerRegistry struct {
rwmutex *sync.RWMutex
items []IRestController
}
func (me *tDefaultControllerRegistry) All() []interface{} {
me.rwmutex.RLock()
defer me.rwmutex.RUnlock()
all := make([]interface{}, len(me.items))
for i, it := range me.items {
all[i] = it
}
return all
}
func (me *tDefaultControllerRegistry) Register(it IRestController) {
me.rwmutex.Lock()
defer me.rwmutex.Unlock()
me.items = append(me.items, it)
}
func (me *tDefaultControllerRegistry) Apply(r *gin.Engine) {
me.rwmutex.RLock()
defer me.rwmutex.RLock()
for _, it := range me.items {
it.RegisterRestController(r)
}
}
func newDefaultControllerRegistry() IControllerRegistry {
return &tDefaultControllerRegistry{
new(sync.RWMutex),
[]IRestController{},
}
}
var ControllerRegistry = newDefaultControllerRegistry()到此，相信大家對(duì)“如何用golang仿spring ioc/aop實(shí)現(xiàn)藍(lán)圖效果”有了更深的了解，不妨來(lái)實(shí)際操作一番吧！這里是創(chuàng)新互聯(lián)網(wǎng)站，更多相關(guān)內(nèi)容可以進(jìn)入相關(guān)頻道進(jìn)行查詢，關(guān)注我們，繼續(xù)學(xué)習(xí)！
