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json rpc 본문

Developement/Web

json rpc

highheat 2008. 3. 25. 01:41

출처 : http://cafe.naver.com/devteria/475

환경설정.

1. web.xml에 아래내용 추가

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

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
  "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
  <servlet>
    <servlet-name>com.metaparadigm.jsonrpc.JSONRPCServlet</servlet-name>
    <servlet-class>com.metaparadigm.jsonrpc.JSONRPCServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>com.metaparadigm.jsonrpc.JSONRPCServlet</servlet-name>
    <url-pattern>/JSON-RPC</url-pattern>
  </servlet-mapping>
</web-app>

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

2. json.jar를 lib 디렉토리에 복사
3. jsonrpc.js web App 디렉토리에 복사
 
구현.
-- Hello.java ----------------------------------------------------------------------------

package com.metaparadigm.jsonrpc.test;
 

import java.io.Serializable;
 

public class Hello implements Serializable{

    private final static long serialVersionUID = 1;

        public String sayHello(String who) {

            return "hello " + who;

        }

}

 

 

-- hello.jsp -----------------------------------------------------------------------------

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

 

<jsp:useBean id="JSONRPCBridge" scope="session" class="com.metaparadigm.jsonrpc.JSONRPCBridge" />

<jsp:useBean id="hello" scope="session" class="com.metaparadigm.jsonrpc.test.Hello" />

<% JSONRPCBridge.registerObject("hello", hello); %>

 

<html>

    <head>

        <script type="text/javascript" src="jsonrpc.js"></script>

        <script type="text/javascript" src="hello.js"></script>

     

        <title>JSON-RPC-Java Hello</title>

    </head>

   

    <body bgcolor="#ffffff" onLoad="onLoad()">

        <h2>JSON-RPC-Java Hello</h2>

        <p>The JSON-RPC-Java <em>Hello World</em> application.</p>

        <p> <strong>Who:</strong>

        <input type="text" id="who" size="30" value="Michael" /> &nbsp;

        <input type="button" value="Say Hello" onclick="clickHello()" /> </p>

    </body>

</html> 

 

-- hello.js  -----------------------------------------------------------------------------

function onLoad(){

    jsonrpc = new JSONRpcClient("JSON-RPC");

}

function clickHello(){

    var whoNode = document.getElementById("who");

    var result = jsonrpc.hello.sayHello(whoNode.value);

    alert("The server replied: " + result);

}

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

 

참고 사이트 : http://oss.metaparadigm.com

 

더불어, 몇가지 참고할만한 것들

 

JSONR(Regular JSON): http://laurentszyster.be/jsonr/index.html

JSON을 HTML로 generate 해주는 기술

예제 : http://laurentszyster.be/jsonr/jsonr.html

 

JSONP(JSON with Padding): http://bob.pythonmac.org/archives/2005/12/05/remote-json-jsonp/

다른 웹사이트로 HTTP 요청을 보내고 자바스크립트 콜백 함수를 통해 실행결과를 통보 받는 방식으로 수행

크로스 브라우저를 넘어서, 크로스 도메인까지....

 

JSPON Browser: http://www.jspon.org/browser.html

여러개 분산되어 있는 JSON 객체들을 브라우저에서 조합하여 보여줄수 있는 브라우저

 
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