Ajax and XML-RPC (Graham O'Regan's Blog)
In this post I'm going to look at one of the strongest candidates for the new standard in Ajax communication, the incredibly simple XML-RPC protocol. I'm going to use the Apache XML-RPC library to create a simple web service and create a simple Java consumer before looking at how we can use the JSolait JS XML-RPC library to consume the same service in a browser window.Apache XML-RPCライブリを使ったXML-RPCサーブレットとJSolait JS XML-RPC libraryを使ったAjaxフロントエンドのチュートリアル。
Apache XML-RPCライブラリを使えばPOJOを簡単にXML-RPCとして利用できるという点とJavascriptライブリ集のJSolaitを使えば簡単にXML-RPCを使ったAjaxフロントエンドをインプリメントできるという点が主旨です。
特にJSolaitを使えば
<script type="text/javascript" src="./jsolait/init.js"></script>
<script type="text/javascript" src="./jsolait/lib/urllib.js"></script>
<script type="text/javascript" src="./jsolait/lib/xml.js"></script>
<script type="text/javascript" src="./jsolait/lib/xmlrpc.js"></script>
<script type="text/javascript">
<!--
/**
* Load the xmlrpc object and a proxy to the service
*/
var xmlrpc = null;
var server = null;
try{
var xmlrpc = importModule("xmlrpc");
var server = new xmlrpc.ServerProxy('http://localhost:8080/xmlrpc/test.rpc', ['echoHandler.echo']);
}catch(e){
reportException(e);
throw "importing of xmlrpc module failed.";
}
/**
* Delete the value in the first box and put the result of the XML-RPC
* call into the second
*/
function echo(input){
response = server.echoHandler.echo(input);
document.myForm.input.value = "";
document.myForm.result.value = response;
}
//-->
</script>
これだけでXML-RPCサーバと通信してAjax出来てしまうのがグッド。
呼び出しはこんな感じですね。
<form name="myForm" action="" method="post"> <input type="text" name="input" onKeyUp="javascript:echo(document.myForm.input.value)" /><br/> <input type="text" name="result" /><br/> </form>
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