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Zhe Wang · 九月 18 阅读大约需 4 分钟

Rest实现Post、Get、Put、Delete几种操作方式Contestant

       这是一篇笔记:

说明

       Restful是一种基于Http的网络应用程序的设计风格和开发方式,可以使用xml格式或者Json格式定义。

RESTFUL特点包括:

1、每一个URI代表1种资源;

2、客户端使用GETPOSTPUTDELETE4个表示操作方式的动词对服务端资源进行操作:GET用来获取资源,POST用来新建资源(也可以用于更新资源),PUT用来更新资源,DELETE用来删除资源;

3、通过操作资源的表现形式来操作资源;

4、资源的表现形式是XML或者HTML

5、客户端与服务端之间的交互在请求之间是无状态的,从客户端到服务端的每个请求都必须包含理解请求所必需的信息。

IRIS中实现

GET

XData UrlMap [ XMLNamespace = "http://www.intersystems.com/urlmap" ]
{
<Routes> 
  
    <Route Url="/item" Method="GET" Call="item1" Cors="true"/>
    <Route Url="/item/:id" Method="GET" Call="item2" Cors="true"/>
    <Route Url="/items" Method="GET" Call="item3" Cors="true"/>

</Routes>
}

/// 无参GET操作方式
ClassMethod item1() As %Status
{
    Set sc = $$$OK
    s resp = {}
    d resp.%Set("Code",200)
    d resp.%Set("Msg","ok")
    s resp = resp.%ToJSON()
    w resp
    Return sc
}

/// 一个参数GET操作方式
ClassMethod item2(id As %Integer) As %Status
{
    Set sc = $$$OK
    s resp = {}
    d resp.%Set("Code",200)
    d resp.%Set("Msg","ID为:"_id)
    s resp = resp.%ToJSON()
    w resp
    Return sc
}

/// n个参数的GET操作方式
ClassMethod item3() As %Status
{
    s sc = $$$OK
    s id = $GET(%request.Data("id",1),"")
    s dataName = $GET(%request.Data("dataName",1),"")
    s valueName = $GET(%request.Data("valueName",1),"")
    s resp = {}
    d resp.%Set("code",200)
    d resp.%Set("id",id)
    d resp.%Set("dataName",dataName)
    d resp.%Set("valueName",valueName)
    s resp = resp.%ToJSON()
    w resp
    Return sc
}

 

POST

XData UrlMap [ XMLNamespace = "http://www.intersystems.com/urlmap" ]

{

<Routes>

    <Route Url="/item" Method="POST" Call="item1" Cors="true"/>

</Routes>

}

ClassMethod item1() As %Status
{
    
    #Dim JsonUtils as BKIP.Rest.Utils.JsonAndObj = ##class(BKIP.Rest.Utils.JsonAndObj).%New()
    #Dim XmlUtils as BKIP.Rest.Utils.XmlAndObj = ##class(BKIP.Rest.Utils.XmlAndObj).%New()
    s ContentType =  ##class(%String).LogicalToDisplay($Get(%request.CgiEnvs("CONTENT_TYPE")))
    
    Set sc = $$$OK
    Try {
    s message = ##class(%String).LogicalToDisplay(%request.Content.Read())
    If ContentType="application/xml"{
        s tSC = XmlUtils.Xml2Object(message,"Request","BKIP.Rest.MSG.item",.req) $$$ThrowOnError(tSC)
    }Else{
        s tSC = JsonUtils.Json2Object(message,"BKIP.Rest.MSG.item",.req) $$$ThrowOnError(tSC)
    }  
    s req.valueName="删除成功1"
        s tSC = JsonUtils.ObjectJson(req,.resp)
        
    }
    Catch ex {
      #; w "错误出现"
      s resp = {}
      d resp.%Set("Code",-1)
      d resp.%Set("Msg",ex.DisplayString())
      s resp = resp.%ToJSON()
    }
    w resp
    Return sc
}

 

 

PUT

XData UrlMap [ XMLNamespace = "http://www.intersystems.com/urlmap" ]

{
<Routes>
    <Route Url="/item" Method="PUT" Call="item1" Cors="true"/>
</Routes>
}
ClassMethod item1() As %Status
{
    #Dim JsonUtils as BKIP.Rest.Utils.JsonAndObj = ##class(BKIP.Rest.Utils.JsonAndObj).%New()
    #Dim XmlUtils as BKIP.Rest.Utils.XmlAndObj = ##class(BKIP.Rest.Utils.XmlAndObj).%New()
    s ContentType =  ##class(%String).LogicalToDisplay($Get(%request.CgiEnvs("CONTENT_TYPE")))
    Set sc = $$$OK
    Try {
    s message = ##class(%String).LogicalToDisplay(%request.Content.Read())
    If ContentType="application/xml"{
        s tSC = XmlUtils.Xml2Object(message,"Request","BKIP.Rest.MSG.item",.req) $$$ThrowOnError(tSC)
    }Else{
        s tSC = JsonUtils.Json2Object(message,"BKIP.Rest.MSG.item",.req) $$$ThrowOnError(tSC)
    }  
    s req.valueName="删除成功1"
        s tSC = JsonUtils.ObjectJson(req,.resp)
    }
    Catch ex {
      #; w "错误出现"
      s resp = {}
      d resp.%Set("Code",-1)
      d resp.%Set("Msg",ex.DisplayString())
      s resp = resp.%ToJSON()
    }
    w resp
    Return sc
}

 

DELETE

XData UrlMap [ XMLNamespace = "http://www.intersystems.com/urlmap" ]
{
<Routes>
    <Route Url="/item" Method="DELETE" Call="item1" Cors="true"/>
</Routes>
}

ClassMethod item1() As %Status
{
    #Dim JsonUtils as BKIP.Rest.Utils.JsonAndObj = ##class(BKIP.Rest.Utils.JsonAndObj).%New()
    #Dim XmlUtils as BKIP.Rest.Utils.XmlAndObj = ##class(BKIP.Rest.Utils.XmlAndObj).%New()
    s ContentType =  ##class(%String).LogicalToDisplay($Get(%request.CgiEnvs("CONTENT_TYPE")))
    
    Set sc = $$$OK
    Try {
    s message = ##class(%String).LogicalToDisplay(%request.Content.Read())
    If ContentType="application/xml"{
        s tSC = XmlUtils.Xml2Object(message,"Request","BKIP.Rest.MSG.item",.req) $$$ThrowOnError(tSC)
    }Else{
        s tSC = JsonUtils.Json2Object(message,"BKIP.Rest.MSG.item",.req) $$$ThrowOnError(tSC)
    }  
    s req.valueName="删除成功1"
        s tSC = JsonUtils.ObjectJson(req,.resp)
        
    }
    Catch ex {
      #; w "错误出现"
      s resp = {}
      d resp.%Set("Code",-1)
      d resp.%Set("Msg",ex.DisplayString())
      s resp = resp.%ToJSON()
    }
    w resp
    Return sc
}
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