调用SharePointPortalServer Query service

SharePointPortalServer Query service提供了一个WebService，http://servername/_vti_bin/search.asmx，主要有两个方法：
QueryEx
Query
两个方法的参数相同，都是一个XML结构的字符串。只是返回结果不同，QueryEx返回结果是DataSet，Query返回的是一个XML结构的字符串。

主要使用了两种查询类型：KeyWord、MSSQLFT.
KeyWord参数格式如下：

<?xml version="1.0" encoding="utf-16"?>
<QueryPacket xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

revision="1000" xmlns="urn:Microsoft.Search.Query">
    <Query domain="QDomain">
        <SupportedFormats>
            <Format revision="1">urn:Microsoft.Search.Response.Content:Content</Format>
            <Format revision="1">urn:Microsoft.Search.Response.Document:Document</Format>
            <Format revision="1">urn:Microsoft.Search.Response.Form:Form</Format>
        </SupportedFormats>
        <Context>
            <QueryText language="en-US" >
            keyword
            </QueryText>
        </Context>
        <Range>
            <Count>1000</Count>
        </Range>
    </Query>
</QueryPacket>

keyword就是要查询的内容，一个普通的字符串，但是需要注意一点是不能只有一个字母，这样会报错！

MSSQLFT参数格式如下：

<?xml version="1.0" encoding="utf-16"?>
<QueryPacket xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

revision="1000" xmlns="urn:Microsoft.Search.Query">
    <Query domain="QDomain">
        <SupportedFormats>
            <Format revision="1">urn:Microsoft.Search.Response.Content:Content</Format>
            <Format revision="1">urn:Microsoft.Search.Response.Document:Document</Format>
            <Format revision="1">urn:Microsoft.Search.Response.Form:Form</Format>
        </SupportedFormats>
        <Context>
            <QueryText language="en-US" type="MSSQLFT">
                SELECT "DAV:displayname",
                "urn:schemas.microsoft.com:fulltextqueryinfo:displaytitle",
                "urn:schemas.microsoft.com:fulltextqueryinfo:description",
                "DAV:contentclass",
                "DAV:href"
                FROM ( Table Portal_Content..Scope() UNION ALL Table Non_Portal_Content..Scope())
            </QueryText>
        </Context>
        <Range>
            <Count>1000</Count>
        </Range>
    </Query>
</QueryPacket>

这些可以也可以通过对象模型来构建,添加对Microsoft.Search.dll的引用就可以了。

返回的DataSet中的DataTable包含"DAV:displayname","urn:schemas.microsoft.com:fulltextqueryinfo:displaytitle","urn:schemas.microsoft.com:fulltextqueryinfo:d

escription","DAV:contentclass", "DAV:href"Column,需要注意的是":"转换为"%3a","#"转换为"%23".

返回的XML结构如下：
无结果：

<?xml version="1.0" encoding="utf-16"?>
<ResponsePacket xmlns="urn:Microsoft.Search.Response">
    <Response domain="QDomain">
        <Copyright>Microsoft (c) Office SharePoint (tm) Portal Server 2003</Copyright>
        <Range>
            <Results />
        </Range>
        <Status>ERROR_NO_RESULTS_FOUND</Status>
    </Response>
</ResponsePacket>

有结果：

<?xml version="1.0" encoding="utf-8" ?>
<ResponsePacket xmlns="urn:Microsoft.Search.Response">
    <Response domain="QDomain">
        <Copyright>Microsoft (c) Office SharePoint (tm) Portal Server 2003</Copyright>
        <Range>
            <StartAt>1</StartAt>
            <Count>40</Count>
            <TotalAvailable>3</TotalAvailable>
            <Results>
            <Document type="People" xmlns="urn:Microsoft.Search.Response.Document">
                    <Title>.</Title>
                    <Action>
                        <LinkUrl fileExt="aspx">url</LinkUrl>
                    </Action>
                    <Description>
                        
                    </Description>
                    <Properties xmlns="urn:Microsoft.MSSearch.Response.Document.Document">
                        <Property>
                            <Name>DAV:displayname</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                        <Property>
                            <Name>urn:schemas.microsoft.com:fulltextqueryinfo:displaytitle</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                        <Property>
                            <Name>urn:schemas.microsoft.com:fulltextqueryinfo:description</Name>
                            <Type>String</Type>
                            <Value>
                                
                            </Value>
                        </Property>
                        <Property>
                            <Name>DAV:contentclass</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                        <Property>
                            <Name>DAV:href</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                    </Properties>
                </Document>
            <Document type="People" xmlns="urn:Microsoft.Search.Response.Document">
                    <Title>.</Title>
                    <Action>
                        <LinkUrl fileExt="aspx">url</LinkUrl>
                    </Action>
                    <Description>
                        
                    </Description>
                    <Properties xmlns="urn:Microsoft.MSSearch.Response.Document.Document">
                        <Property>
                            <Name>DAV:displayname</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                        <Property>
                            <Name>urn:schemas.microsoft.com:fulltextqueryinfo:displaytitle</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                        <Property>
                            <Name>urn:schemas.microsoft.com:fulltextqueryinfo:description</Name>
                            <Type>String</Type>
                            <Value>
                                
                            </Value>
                        </Property>
                        <Property>
                            <Name>DAV:contentclass</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                        <Property>
                            <Name>DAV:href</Name>
                            <Type>String</Type>
                            <Value>.</Value>
                        </Property>
                    </Properties>
                </Document>
..
</Results>
        </Range>
        <Status>SUCCESS</Status>
    </Response>
</ResponsePacket>

每个Document/Properties下的Property才是真正的结果,有几条记录就有几个Document.