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。