首页 > 代码库 > 企业搜索引擎开发之连接器connector(十八)(待编辑)

企业搜索引擎开发之连接器connector(十八)(待编辑)

创建并启动连接器实例之后,连接器就会基于Http协议向指定的数据接收服务器发送xmlfeed格式数据,我们可以通过配置http代理服务器抓取当前基于http协议格式的数据(或者也可以通过其他网络抓包工具抓取)

// 设置代理
            /Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("IP地址", "端口"));
            synchronized (this) {
                uc = (HttpURLConnection) feedUrl.openConnection();
            }

如此设置之后,我们就可以打开代理工具清楚的观察到连接器发送的具体数据了

POST http://127.0.0.1:8080/hedgehog-searchEngine/xmlfeed HTTP/1.1
Content-Type: multipart/form-data; boundary=<<
Cache-Control: no-cache
Pragma: no-cache
User-Agent: Java/1.6.0_45
Host: 127.0.0.1:8080
Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
Connection: keep-alive
Content-Length: 31621

--<<
Content-Disposition: form-data; name="datasource"
Content-Type: text/plain

default_collectionName_dbconnector_1401370320421
--<<
Content-Disposition: form-data; name="feedtype"
Content-Type: text/plain

incremental
--<<
Content-Disposition: form-data; name="data"
Content-Type: text/xml

<?xml version=‘1.0‘ encoding=‘UTF-8‘?><!DOCTYPE gsafeed PUBLIC "-//Google//DTD GSA Feeds//EN" "gsafeed.dtd">
<gsafeed>
<header>
<datasource>default_collectionName_dbconnector_1401370320421</datasource>
<feedtype>incremental</feedtype>
</header>
<group>
<record url="googleconnector://default_collectionName_dbconnector_1401370320421.localhost/doc?docid=B/9795" displayurl="dbconnector://default_collectionName_dbconnector_1401370320421.localhost/B/9795" action="add" mimetype="text/html">
<metadata>
<meta name="google:displayurl" content="dbconnector://default_collectionName_dbconnector_1401370320421.localhost/B/9795"/>
<meta name="google:mimetype" content="text/html"/>
</metadata>
<content encoding="base64binary">
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
</content>
</record>
……
</group>
</gsafeed>

--<<--

分析上面的数据格式,可以观察到发送方式为POST,发送元素项为datasource feedtype data(datasouce为连接实例名,feedtype表示增量信息,data即为xmlfeed数据)

接下来我们便可以在数据接收服务器端接收这些数据并解析之

---------------------------------------------------------------------------

本系列企业搜索引擎开发之连接器connector系本人原创

转载请注明出处 博客园 刺猬的温驯

本人邮箱: chenying998179@163#com (#改为.)

本文链接 http://www.cnblogs.com/chenying99/p/3765047.html