ajax dwr(direct web remoting)框架簡介
這個從JAVA到JavaScript的遠程功能方法給DWR的用戶帶來非常像傳統的RPC機制,就像RMI或者SOAP一樣,而且擁有運行在WEB上但是不需要瀏覽器插件的好處.
它包含兩個主要的部分:允許JavaScript從WEB服務器上一個遵循了AJAX原則的Servlet(小應用程序)中獲取數據.另外一方面一個JavaScript庫可以幫助網站開發人員輕松地利用獲取的數據來動態改變網頁的內容.
http://flyfish81225.blogchina.com/4098286.html?
http://getahead.ltd.uk/dwr/getstartedhttp://getahead.ltd.uk/dwr/getstarteddwr.xml
<!DOCTYPE dwr PUBLIC
"-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN"
"http://www.getahead.ltd.uk/dwr/dwr10.dtd">
<dwr>
<allow>
<create creator="new" javascript="JDate">
<param name="class" value="java.util.Date"/>
</create>
<create creator="new" javascript="Demo">
<param name="class" value="your.java.Bean"/>
</create>
</allow>
</dwr>
defines what classes DWR can create and remote for use by Javascript
Bean類必須都有一個默認的無參構造器
DWR has a few restrictions:- Avoid reserved JavaScript words
- Methods named after reserved words are automatically excluded. Most JavaScript reserved words are also Java reserved words, so you won't be having a method called "try()" anyway. However the most common gotcha is "delete()", which has special meaning from JavaScript but not Java.
- Overloaded methods can be involved in a bit of a lottery as to which gets called, so avoid overloaded methods.
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posted on 2006-05-19 17:22
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