Flex与asp.net的WebService通讯

2024-07-10 13:08:16

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　　本篇随笔主要是关于flex与asp.net的webservice通讯，其中利用了soapheader。(如果你对soapheader不了解，可以参考webservice开发(一) 如何使用soap头)。由此可见webservice在跨平台方面的优势。

　　asp.net的webservice代码

using system;
using system.web;
using system.web.services;
using system.web.services.protocols;

[webservice(namespace = "http://davidfan.cnblogs.com")]//名称空间应该和flex中定义相同
[webservicebinding(conformsto = wsiprofiles.basicprofile1_1)]
public class service : system.web.services.webservice
{
    public validatesoapheader header;
    [webmethod]
    [soapheader("header")]
    public string helloworld()
    {
        if (header == null)
        {
            return "请提供验证信息.";
        }
        else
        {
            if (header.name == "admin" && header.password == "admin")
            {
                if (header.exdate < datetime.now)
                {
                    return "帐号过期";
                }
                else
                {
                    return "验证成功";
                }
            }
            else
            {
                return "用户名或密码错误";
            }
        }
    }

}

/**//// <summary>
/// 继承自soapheader的自定义类
/// </summary>
public class validatesoapheader : system.web.services.protocols.soapheader
{
    public validatesoapheader()
    {
    }
    public validatesoapheader(string name, string password, datetime dt)
    {
        this.name = name;
        this.password = password;
        this.exdate = dt;
    }

    private string name;
    public string name
    {
        get { return name; }
        set { name = value; }
    }

    private string password;
    public string password
    {
        get { return password; }
        set { password = value; }
    }

    private datetime exdate;
    public datetime exdate
    {
        get { return exdate; }
        set { exdate = value; }
    }
}

　　flex的mxml、as代码

　　mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontfamily="simsun" fontsize="12">
<mx:script>
<![cdata[
    import webserviceutility.info;
    import mx.rpc.events.faultevent;
    import mx.rpc.events.resultevent;
    import mx.rpc.soap.soapheader;

    private function sendrequest():void
    {
        var content:info = new info();
        content.name = username.text;
        content.password = password.text;
        content.exdate = new date(2010, 3, 10);
        //关键在qname的构造函数
        //第一个参数要和.net的webservice的名称空间相同
        //第二个参数要和.net的webservice的继承自soapheader的自定义类名称相同
        var qname:qname = new qname("http://davidfan.cnblogs.com","validatesoapheader");
        var header:soapheader = new soapheader(qname,content);

        ws.clearheaders();
        ws.addheader(header);
        ws.helloworld();
    }
    private function onresult(event:resultevent):void{
            result.text= event.result.tostring();
    }
    private function onfault(event:faultevent):void{
            result.text= event.message.tostring();
    }
]]>
</mx:script>
<mx:webservice id="ws" wsdl="http://localhost:9200/website2/service.asmx?wsdl"
result="onresult(event)" fault="onfault(event)"/>
<mx:textinput id="username" x="98" y="94"/>
<mx:textinput id="password" x="98" y="124"/>
<mx:label x="29" y="98" text="用户名:"/>
<mx:label x="29" y="128" text="密　码:"/>
<mx:button x="98" y="184" label="调用" click="sendrequest()"/>
<mx:label x="29" y="156" text="结　果:"/>
<mx:textinput id="result" x="98" y="154"/>
</mx:application>

package webserviceutility
{
        public class info{
            //该类名称可以和.net中的validatesoapheader不同
            //但字段要对应拼写相同
            public var name:string;
            public var password:string;
            public var exdate:date;
        }
}

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