Flex's HTTPService 数据交互代码大集合

转载

mob604756f920a7 2009-06-30 14:18:00

今天把常用的后台代码整理一下，教程就不用写了，我相信要是涉及到这方面的人，应该不用手把手教的，整理的代码主要有ＰＨＰ，ＡＳＰ．ＮＥＴ，ＪＡＶＡ．够爽吧．最近也正在整理ＦＭＳ２.０应用的各种语言版本的例子，以后可能会爆出来．

先分一下类：HTTPService主要分为普通网页格式调用和，ＸＭＬ方式调用．

Flex(普通形式):

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    layout="absolute"
    backgroundColor="#FFFFFF"
    backgroundAlpha="0">
    <mx:Script>
        <![CDATA[
        import mx.rpc.events.ResultEvent;
        import mx.rpc.events.FaultEvent;
        import mx.controls.Alert;

            public function handlePlain(event:ResultEvent):void
            {
                shippingOptions.text = event.result.toString();
            }

            public function handleFault(event:FaultEvent):void
            {
               Alert.show(event.fault.faultString, "Error");
            }
        ]]>
    </mx:Script>

    <mx:HTTPService result="handlePlain(event);" fault="handleFault(event);" id="plainRPC" resultFormat="text"
        url="http://yourserver.com/text/plainHttpService.php"
        useProxy="false">
        <mx:request xmlns="">
            <zipcode>{zipcode.text}</zipcode>
            <pounds>{weight_lb.text}</pounds>
        </mx:request>
    </mx:HTTPService>

    <mx:Label x="56" y="32" text="Zip Code" width="55" height="18" textAlign="right" fontWeight="bold"/>
    <mx:Label x="56" y="58" text="Weight" width="55" height="18" textAlign="right" fontWeight="bold"/>
    <mx:TextInput x="130" y="32" id="zipcode" width="160" height="22"/>
    <mx:TextInput x="130" y="58" id="weight_lb" width="160" height="22"/>
    <mx:Button x="130" y="95" label="Get Shipping Options" click="plainRPC.send();" width="160" height="22"/>

    <mx:Text x="56" y="150" id="shippingOptions" width="310" height="133" fontWeight="bold"/>

</mx:Application>

Flex(XML格式):

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

    <mx:Script>
        <![CDATA[
            import mx.rpc.events.ResultEvent;
            import mx.rpc.events.FaultEvent;
            import mx.controls.Alert;

            public function handleXML(event:ResultEvent):void
            {
                shippingInfo = event.result.option as XML;
            }

            public function handleFault(event:FaultEvent):void
            {
               Alert.show(event.fault.faultString, "Error");
            }
        ]]>
    </mx:Script>

    <mx:HTTPService result="handleXML(event);" fault="handleFault(event);" id="xmlRPC" resultFormat="e4x"
        method="POST"  url="http://yourserver.com/xml/xmlHttpService.jsp" useProxy="false">
        <mx:request xmlns="">
            <zipcode>{zipcode.text}</zipcode>
            <pounds>{weight_lb.text}</pounds>
        </mx:request>
    </mx:HTTPService>

    <mx:Label x="56" y="32" text="Zip Code" width="55" height="18" textAlign="right" fontWeight="bold"/>
    <mx:Label x="56" y="58" text="Weight" width="55" height="18" textAlign="right" fontWeight="bold"/>
    <mx:TextInput x="130" y="32" id="zipcode" width="160" height="22"/>
    <mx:TextInput x="130" y="58" id="weight_lb" width="160" height="22"/>
    <mx:Button x="130" y="95" label="Get Shipping Options" click="xmlRPC.send();" width="160" height="22"/>
    <mx:DataGrid
        dataProvider="{shippingInfo}"
        x="80" y="141" width="262" height="92" id="shippingOptionsList" editable="false" enabled="true">
        <mx:columns>
            <mx:DataGridColumn headerText="Service" dataField="service" />
            <mx:DataGridColumn headerText="Price" dataField="price" />
        </mx:columns>
    </mx:DataGrid>

</mx:Application>

后台代码:

ColdFusion文件(我最喜欢CF和PHP)

PlainHttpService.cfm

<cfinvoke component="Shipping" method="getShippingOptions"

argumentcollection="#myArgs#"

returnvariable="myResult">

#myResult[i][1]#: $#myResult[i][2]#<br />

</cfloop>

</cfoutput>

</cfprocessingdirective>

XmlHttpService.cfm

<cfprocessingdirective pageencoding = "utf-8" suppressWhiteSpace = "yes">
<cfset myArgs.zipcode=URL.zipcode>
<cfset myArgs.pounds=URL.pounds>
<cfinvoke component="Shipping" method="getShippingOptions"
    rgumentcollection="#myArgs#"
    returnvariable="myResult">
<cfxml variable="userXML">
<options>
    <cfloop array="#myresult#" index="theOption" >
        <cfoutput>
            <option>
                <service>#theOption[1]#</service>
                <price>#theOption[2]#</price>
            </option>
        </cfoutput>
    </cfloop>
 </options>
</cfxml>
<cfoutput>#userXML#</cfoutput>
</cfprocessingdirective>

Shipping.cfc

<cfcomponent>
  <cffunction name="getShippingOptions"
    access="public" returntype="array">
    <cfargument name="zipcode" type="any" required="yes" >
    <cfargument name="pounds" type="any" required="yes">
        <cflog text="In Shipping.getShippingOptions,
          #Arguments.zipcode#, #Arguments.pounds#">
        <cfset options=ArrayNew(2)>
    <cfset baseCost=(zipcode / 10000) + (pounds * 5)>
        <cfset options[1][1]="Next Day">
        <cfset options[1][2]=baseCost * 4>
        <cfset options[2][1]="Two Day Air">
        <cfset options[2][2]=baseCost * 2>
        <cfset options[3][1]="Saver Ground">
        <cfset options[3][2]=baseCost>
    <cflog text="options: #ArrayToList(options[3])#">
    <cfreturn options>
  </cffunction>
</cfcomponent>

PHP 文件

XML 例子

xmlHttpService.php

<?php
    require('shipping.php');

    $options = get_shipping_options($_REQUEST["zipcode"], $_REQUEST["pounds"]);

    $results[] = "<options>";
    foreach ($options as $service => $price) {
        $results[] = "<option><service>$service</service><price>$price</price></option>";
    }
    $results[] = "</options>";
    print implode("\n", $results);
?>

shipping.php

<?php
    function get_shipping_options($zipcode, $pounds) {
        $baseCost = round($zipcode / 10000) + ($pounds * 5);
        $options = array( "Next Day" => $baseCost * 4,
                            "Two Day Air" => $baseCost * 2,
                            "Saver Ground" => $baseCost);
        return $options;
    }

?>

页面格式例子

plainHttpService.php

<?php
    require ('shipping.php');

    $options = get_shipping_options($_REQUEST[zipcode], $_REQUEST[pounds]);
    foreach ($options as $service => $price) {
        $result[] = "$service: $price USD";
    }
    print implode("\n", $result);
?>

JSP 和 JAVA 文件

页面格式例子

PlainHttpService.jsp

<%@page import="quickstart.ShippingCalculator,
                quickstart.ShippingOption,
                java.util.List" %>
<%
    ShippingCalculator calc = new ShippingCalculator();
    List    options;
    int     zipcode;
    double  pounds;

    zipcode = Integer.parseInt(request.getParameter("zipcode"));
    pounds = Double.parseDouble(request.getParameter("pounds"));

    options = calc.getShippingOptions(zipcode, pounds);

    for (int i = 0; i < options.size(); i++) {
        ShippingOption option = (ShippingOption) options.get(i);
%><%= option.getService() %>: <%= option.getPrice() %> USD
<%
    }
%>

XML例子

xmlHttpService.JSP

<%@page import="quickstart.ShippingCalculator,
                quickstart.ShippingOption,
                java.util.List" %>

<?xml version="1.0" encoding="utf-8"?>
<options>
<%
    ShippingCalculator calc = new ShippingCalculator();
    List    options;
    int     zipcode;
    double  pounds;

    zipcode = Integer.parseInt(request.getParameter("zipcode"));
    pounds = Double.parseDouble(request.getParameter("pounds"));

    options = calc.getShippingOptions(zipcode, pounds);

    for (int i = 0; i < options.size(); i++) {
        ShippingOption option = (ShippingOption) options.get(i);
%>
    <option>
        <service><%= option.getService() %></service>
        <price><%= option.getPrice() %></price>
    </option>
<%
    }
%>
</options>

ShippingCalculator.java

package quickstart;

import java.util.ArrayList;
import java.util.List;
import java.lang.Math;

public class ShippingCalculator {

    /*  Returns a list of made-up ShippingOptions.
    */
    public List getShippingOptions(int zipcode, double pounds) {

        List        options = new ArrayList();
        double      baseCost;

        baseCost = Math.round(zipcode / 10000) + (pounds * 5);

        options.add(new ShippingOption("Next Day", baseCost * 4));
        options.add(new ShippingOption("Two Day Air", baseCost * 2));
        options.add(new ShippingOption("Saver Ground", baseCost));

        return options;
    }
}

ShippingOption.java

package quickstart;

public class ShippingOption {

    private String  service;
    private double  price;

    public ShippingOption() {
    }

    public ShippingOption(String aService, double aPrice) {
        this.service = aService;
        this.price = aPrice;
    }

    public void setService(String value) {
        this.service = value;
    }

    public void setPrice(double value) {
        this.price = value;
    }

    public String getService() { return this.service; }

    public double getPrice() { return this.price; }
}

ASP.NET 文件

页面格式文件:

PlainHttpService.aspx

<%@ Import Namespace="quickstart" %>

<script language="C#" runat="server">

  public void Page_Load(Object sender, EventArgs E)
  {
    int zipcode;
  double weight;

    if(Request.RequestType == "POST")
    {
    zipcode = Int32.Parse(Request.Form["zipcode"].ToString()); 
    weight = Double.Parse(Request.Form["pounds"].ToString()); 
  }
  else
  {
    zipcode = Int32.Parse(Request.QueryString["zipcode"].ToString()); 
    weight = Double.Parse(Request.QueryString["pounds"].ToString()); 
  }

    ShippingCalculator shippingcalculator = new ShippingCalculator();
  ShippingOption shippingOption = new ShippingOption();

    ArrayList al =  shippingcalculator.getShippingOptions(zipcode, weight);
    StringBuilder stringBuilder;;

    foreach(Object obj in al)
    {
      stringBuilder = new StringBuilder();
      shippingOption = (ShippingOption)obj;
      stringBuilder.Append(shippingOption.getService());
      stringBuilder.Append(": ");
      stringBuilder.Append(shippingOption.getPrice());
      stringBuilder.Append(" USD" + "\n");
      Response.Write(stringBuilder.ToString());     
    }
  }
</script>

XML格式文件

xmlHttpService.aspx

<%@ Import Namespace="quickstart" %>

<script language="C#" runat="server" ContentType="text/xml" >

  public string str="";

  public void Page_Load(Object sender, EventArgs E)
  {
    int zipcode;
  double weight;

    if(Request.RequestType == "POST")
    {
    zipcode = Int32.Parse(Request.Form["zipcode"].ToString()); 
    weight = Double.Parse(Request.Form["pounds"].ToString()); 
  }
  else
  {
    zipcode = Int32.Parse(Request.QueryString["zipcode"].ToString()); 
    weight = Double.Parse(Request.QueryString["pounds"].ToString()); 
  } 

    ShippingCalculator shippingcalculator = new ShippingCalculator();
  ShippingOption shippingOption = new ShippingOption();

    ArrayList al =  shippingcalculator.getShippingOptions(zipcode, weight);
    StringBuilder stringBuilder = new StringBuilder("<options>");   

    foreach(Object obj in al)
    {     
      shippingOption = (ShippingOption)obj;
      stringBuilder.Append("<option><service>");
      stringBuilder.Append(shippingOption.getService());
      stringBuilder.Append("</service><price>");
      stringBuilder.Append(shippingOption.getPrice());
      stringBuilder.Append("</price></option>" );         
    }
    stringBuilder.Append("</options>");
    str = stringBuilder.ToString();  

  }

</script>
<?xml version="1.0" encoding="utf-8"?>
<%
Response.ContentEncoding = Encoding.UTF8;
Response.Write(str); 
%>

ShippingCalculator.cs

using System;
using System.Collections;

namespace quickstart
{

    public class ShippingCalculator
    {
        //Returns a list of made-up ShippingOptions.
        public ArrayList getShippingOptions(int zipcode, double pounds)
        {
            ArrayList options = new ArrayList();
            double baseCost;

            baseCost = Math.Round((double)zipcode / 10000) + (pounds * 5);
            options.Add(new ShippingOption("Next Day", baseCost * 4));
            options.Add(new ShippingOption("Two Day Air", baseCost * 2));
            options.Add(new ShippingOption("Saver Ground", baseCost));

            return options;
        }
    }
}

ShippingOption.cs

using System;

namespace quickstart
{
    public class ShippingOption
    {
        private String service;
        private double price;

        public ShippingOption()
        {
        }

        public ShippingOption(String aService, double aPrice)
        {
            this.service = aService;
            this.price = aPrice;
        }

        public void setService(String value)
        {
            this.service = value;
        }

        public void setPrice(double value)
        {
            this.price = value;
        }

        public String getService() { return this.service; }

        public double getPrice() { return this.price; }
    }
}