Burlap中hessian协议研究（一）

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Burlap也是有caucho提供，它和hessian的不同在于，它是基于XML-RPC协议的。

◆是基于什么协议实现的?

基于XML-RPC协议实现。

◆怎么发起请求?

根据Burlap提供的API。

◆怎么将请求转化为符合协议的格式的?

将请求信息转化为符合协议的XML格式，转化为流进行传输。

◆使用什么传输协议传输?

Http协议。

◆响应端基于什么机制来接收请求?

监听Http请求。

◆怎么将流还原为传输格式的?

根据XML-RPC协议进行还原。

◆处理完毕后怎么回应?

返回结果写入XML中，由Burlap返回至调用端。

 

 

关于Burlap的请求信息的DTD文件如下：

 

DTD文件描述：

burlap协议定义格式

SML grammar

tag-list ::= (S tag)* S tag      ::= <name> tag-list </name>          ::= <name> cdata </name> S        ::= (' ' | '\t' | '\r' | '\n')* cdata    ::= ([^<&] | &# [0-9]+ ; | &lt; | &gt; | &amp;)* name     ::= [a-zA-Z:_] [a-zA-Z0-9.-_:]*

burlap:call

<!DOCTYPE burlap:call> <!ENTITY % object "null | boolean | int | double | string | xml |                  base64 | date | ref | map | list | remote">                          <!ENTITY % header "(header, (%object;))*"> <!ELEMENT burlap:call - - ((%header;), method, (%object;)*)> <!ELEMENT header - - #CDATA> <!ELEMENT method - - #CDATA> <!ELEMENT null - - EMPTY> <!ELEMENT boolean - - #CDATA> <!ELEMENT int - - #CDATA> <!ELEMENT double - - #CDATA> <!ELEMENT string - - #CDATA> <!ELEMENT xml - - #CDATA> <!ELEMENT base64 - - #CDATA> <!ELEMENT date - - #CDATA> <!ELEMENT ref - - #CDATA> <!ELEMENT map - - (type, ((%object;), (%object;))*)> <!ELEMENT list - - (type, length, (%object;)*)> <!ELEMENT type - - #CDATA> <!ELEMENT remote - - (type, string)>

burlap:reply

<!DOCTYPE burlap:reply> <!ENTITY % object "(null | boolean | int | double | string | xml |                  base64 | date | ref | map | list | remote)">                          <!ENTITY % header "(header, (%object;))*"> <!ELEMENT burlap:reply - - ((%header;), (%object; | fault))> <!ELEMENT header - - #CDATA> <!ELEMENT fault - - (string, (%object;))*> <!ELEMENT null - - EMPTY> <!ELEMENT boolean - - #CDATA> <!ELEMENT int - - #CDATA> <!ELEMENT double - - #CDATA> <!ELEMENT string - - #CDATA> <!ELEMENT xml - - #CDATA> <!ELEMENT base64 - - #CDATA> <!ELEMENT date - - #CDATA> <!ELEMENT ref - - #CDATA> <!ELEMENT map - - (type, ((%object;), (%object;))*)> <!ELEMENT list - - (type, length, (%object;)*)> <!ELEMENT type - - #CDATA> <!ELEMENT remote - - (type, string)>

 

 

关于Burlap请求的信息格式

如下：

 

 

Burlap的格式类似如下：

burlap内容如下：
<burlap:call>
<method>setAdDetail</method>
<map>
<type>com.netease.bid.client.model.Ad</type>
<string>id</string><long>-888</long>
<string>title</string><string>888</string>
<string>desc1</string><string>888</string>
<string>desc2</string><string>888</string>
<string>url</string><string>http://www.888.com</string>
<string>dispUrl</string><string>http://www.888.com</string>
<string>area</string><string>1</string>
<string>areas</string><list><length>2</length><int>16</int><int>27</int></list>
<string>appearTime</string><int>1</int>
<string>disappTime</string><int>12</int>
<string>dayBudget</string><string>16</string>
<string>keywords</string><map><type></type>
<long>-58810201</long>
<map>
<type>com.netease.bid.client.model.Keyword</type>
<string>id</string><long>-58810201</long>
<string>name</string><string>原始关键词8</string>
<string>status</string><int>0</int>
<string>mode</string><int>0</int>
<string>clickCost</string>
<map>
<type>java.math.BigDecimal</type><string>value</string><string>10</string>
</map>
<string>topPrice</string><string>0.3</string>
</map>
<long>-52610072</long>
<map>
<type>com.netease.bid.client.model.Keyword</type>
<string>id</string><long>-52610072</long>
<string>name</string><string>原始关键词88</string>
<string>status</string><int>0</int>
<string>mode</string><int>0</int>
<string>clickCost</string>
<map>
<type>java.math.BigDecimal</type><string>value</string><string>11</string>
</map>
<string>topPrice</string><string>0.3</string>
</map>
<long>-79731473</long>
<map>
<type>com.netease.bid.client.model.Keyword</type>
<string>id</string><long>-79731473</long>
<string>name</string><string>原始关键词888</string><string>status</string><int>0</int>
<string>mode</string><int>0</int>
<string>clickCost</string>
<map>
<type>java.math.BigDecimal</type><string>value</string><string>12</string>
</map><string>topPrice</string><string>0.3</string>
</map></map>
<string>status</string><int>1</int>
</map>
</burlap:call>

 

 

生成此xml的类为MicroBurlapInputStream类

 

 

请看源代码如下：

 

请看下一节？？

  \(^o^)/\(^o^)/