C,C#,WebService结构体数组返回问题--谐解

应用需求：嵌入式设备提供数据库查询结果，webservice 服务，c#平台作为客户端查询远端设备的记录，即分布式查询。

        遇到问题：1.基于gsoap的基本webservice开发就不废话了，网上一大堆。痛点，查询多条记录结果返回给c#。c#客户端无法解析xml转换成数组。

    2.多个二进制数据同时返回给c#。

先说我的解决方法：1. 查询结果，转换成json串，用string 类型返回（高手提醒）。c端，采用cJson库解析创建json串（简单）。

                                            2. 手动写wsdl 分别生成从，c, c#端代码。（自动生成c#代码，自动分解c#返回值）

        WSDL文件：

<?xml version="1.0" encoding="UTF-8"?><definitions xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"             xmlns:tns="http://www.jshwx.com/sbox/"             xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"             xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SboxRecordServer"             targetNamespace="http://www.jshwx.com/sbox/">  <types>    <xsd:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://www.jshwx.com/sbox/"                targetNamespace="http://www.jshwx.com/sbox/" version="1.0"><!--卡口索引查询接口参数--><xsd:element name="kkQueryRecordIdxReq" type="tns:kkQueryRecordIdxReq"/><xsd:element name="kkQueryRecordIdxRsp" type="tns:kkQueryRecordIdxRsp"/><xsd:complexType name="kkQueryRecordIdxReq"><xsd:sequence><xsd:element minOccurs="0" maxOccurs="1" name="startTime" type="xsd:string" /><xsd:element minOccurs="0" maxOccurs="1" name="endTime" type="xsd:string" /><xsd:element minOccurs="1" maxOccurs="1" name="chId" type="xsd:int" /><xsd:element minOccurs="0" maxOccurs="1" name="plateNum" type="xsd:string" /><xsd:element minOccurs="1" maxOccurs="1" name="maxResultNum" type="xsd:int" /><xsd:element minOccurs="1" maxOccurs="1" name="timeOut" type="xsd:int" /></xsd:sequence></xsd:complexType><xsd:complexType name="kkQueryRecordIdxRsp" ><xsd:sequence><xsd:element minOccurs="1" maxOccurs="1" name="kkQueryRecordResult" type="xsd:int" /><xsd:element minOccurs="1" maxOccurs="1" name="recordNum" type="xsd:int" /><xsd:element minOccurs="0" maxOccurs="1" name="recordIdxJson" type="xsd:string" /></xsd:sequence></xsd:complexType><!--卡口数据获取接口参数--><xsd:element name="kkGetRecordDataReq" type="tns:kkGetRecordDataReq"/><xsd:element name="kkGetRecordDataRsp" type="tns:kkGetRecordDataRsp"/><xsd:complexType name="kkGetRecordDataReq"><xsd:sequence><xsd:element minOccurs="0" name="recordId" type="xs:int" /></xsd:sequence></xsd:complexType>        <xsd:complexType name="kkGetRecordDataRsp"><xsd:sequence><xsd:element minOccurs="1" maxOccurs="1" name="kkGetRecordDataResult" type="xsd:int" /><xsd:element minOccurs="0" name="recordName" type="xs:string" /><xsd:element minOccurs="0" name="idxFile" nillable="true" type="xs:base64Binary" /><xsd:element minOccurs="0" name="jpgFile" nillable="true" type="xs:base64Binary" /></xsd:sequence></xsd:complexType>    </xsd:schema>  </types>    <!--卡口索引查询接口参数-->  <message name="kkQueryRecordIdxReq"><part element="tns:kkQueryRecordIdxReq" name="parameters" />  </message>  <message name="kkQueryRecordIdxRsp"><part element="tns:kkQueryRecordIdxRsp" name="parameters" />  </message>  <!--卡口数据获取接口参数-->  <message name="kkGetRecordDataReq"><part element="tns:kkGetRecordDataReq" name="parameters" />  </message>  <message name="kkGetRecordDataRsp"><part element="tns:kkGetRecordDataRsp" name="parameters" />  </message>   <!--端口-->  <portType name="SboxRecordServerDelegate"><operation name="kkQueryRecordIdx"><input message="tns:kkQueryRecordIdxReq" /><output message="tns:kkQueryRecordIdxRsp" /></operation><operation name="kkGetRecordData"><input message="tns:kkGetRecordDataReq" /><output message="tns:kkGetRecordDataRsp" /></operation>  </portType>   <!--绑定接口-->  <binding name="SboxRecordServerBinding" type="tns:SboxRecordServerDelegate"><soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" /><operation name="kkQueryRecordIdx"><soap:operation soapAction="" /><input><soap:body use="literal" /></input><output><soap:body use="literal" /></output></operation><operation name="kkGetRecordData"><soap:operation soapAction="" /><input><soap:body use="literal" /></input><output><soap:body use="literal" /></output></operation>  </binding>    <!--声明服务-->  <service name="SboxRecordServer"><port binding="tns:SboxRecordServerBinding" name="SboxRecordServer"><soap:address location="http://localhost:8080/" /></port>  </service></definitions>

详细说明一下 c#生成的接口，天生的支持数组，

返回json数据

 public int kkQueryRecordIdx(<span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] string startTime,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] string endTime, </span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] int chId,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] string plateNum,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] int maxResultNum,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] int timeOut,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] out int recordNum, </span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] out string recordIdxJson) {</span>

        object[] results = this.Invoke("kkQueryRecordIdx", new object[] {                    startTime,                    endTime,                    chId,                    plateNum,                    maxResultNum,                    timeOut});        recordNum = ((int)(results[1]));        recordIdxJson = ((string)(results[2]));        return ((int)(results[0]));    }

返回多个二进制数据组

//自动把返回的结构体分解成多个输出，自动关联xml解析类型。如果使用c# 自动生成接口简单的多（但无法解决数据的问题）

 public int kkGetRecordData(<span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] int recordId,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] [System.Xml.Serialization.XmlIgnoreAttribute()] bool recordIdSpecified,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified)] out string recordName,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, DataType="base64Binary", IsNullable=true)] out byte[] idxFile,</span><span style="font-family: Arial, Helvetica, sans-serif;">[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, DataType="base64Binary", IsNullable=true)] out byte[] jpgFile) </span><span style="font-family: Arial, Helvetica, sans-serif;">{</span>

        object[] results = this.Invoke("kkGetRecordData", new object[] {                    recordId,                    recordIdSpecified});        recordName = ((string)(results[1]));        idxFile = ((byte[])(results[2]));        jpgFile = ((byte[])(results[3]));        return ((int)(results[0]));    }

下面是C#自己生成wsdl和接口代码，c#高手可以看看为啥他们不同，帮我解释一下（我不会c#）<span style="font-family: Arial, Helvetica, sans-serif;">//没有把返回结构分解</span>

 public int kkQueryRecord(kkQueryRecordReq req, out kkQueryRecordRsp rsp) {        object[] results = this.Invoke("kkQueryRecord", new object[] {                    req});        rsp = ((kkQueryRecordRsp)(results[1]));        return ((int)(results[0]));    }

       c端的接口很正常，没什么问题

我把代码代码打包上传到 路径：http://download.csdn.net/detail/zhujinghao09/9480345

为了解决这个问题，废了九牛二虎之力，如果有简单的方法，欢迎分享。

参考链接：http://www.cnblogs.com/linyc/archive/2011/12/20/2295040.html

    http://my.oschina.net/jacobin/blog/143452?fromerr=R7swAZoN

谢谢这两位博主，启发很大。