mirror of
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67 lines
2.2 KiB
Markdown
67 lines
2.2 KiB
Markdown
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#### Example 1 - Server side JSP encoding ####
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service.jsp:
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```
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<%@page contentType="text/html; charset=UTF-8"%>
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<%@page import="org.json.simple.JSONObject"%>
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<%
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JSONObject obj=new JSONObject();
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obj.put("name","foo");
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obj.put("num",new Integer(100));
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obj.put("balance",new Double(1000.21));
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obj.put("is_vip",new Boolean(true));
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obj.put("nickname",null);
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out.print(obj);
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out.flush();
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%>
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```
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Please note that you need to place [json\_simple-1.1.jar](http://json-simple.googlecode.com/files/json_simple-1.1.jar) in WEB-INF/lib before running the JSP. Then the client side will get the resulting JSON text.
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#### Example 2 - Client side XMLHttpRequest ####
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client.html:
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```
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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</head>
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<script type="text/javascript">
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function createXMLHttpRequest(){
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// See http://en.wikipedia.org/wiki/XMLHttpRequest
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// Provide the XMLHttpRequest class for IE 5.x-6.x:
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if( typeof XMLHttpRequest == "undefined" ) XMLHttpRequest = function() {
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try { return new ActiveXObject("Msxml2.XMLHTTP.6.0") } catch(e) {}
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try { return new ActiveXObject("Msxml2.XMLHTTP.3.0") } catch(e) {}
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try { return new ActiveXObject("Msxml2.XMLHTTP") } catch(e) {}
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try { return new ActiveXObject("Microsoft.XMLHTTP") } catch(e) {}
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throw new Error( "This browser does not support XMLHttpRequest." )
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};
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return new XMLHttpRequest();
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}
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var AJAX = createXMLHttpRequest();
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function handler() {
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if(AJAX.readyState == 4 && AJAX.status == 200) {
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var json = eval('(' + AJAX.responseText +')');
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alert('Success. Result: name => ' + json.name + ',' + 'balance => ' + json.balance);
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}else if (AJAX.readyState == 4 && AJAX.status != 200) {
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alert('Something went wrong...');
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}
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}
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function show(){
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AJAX.onreadystatechange = handler;
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AJAX.open("GET", "service.jsp");
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AJAX.send("");
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};
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</script>
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<body>
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<a href="#" onclick="javascript:show();"> Click here to get JSON data from the server side</a>
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</html>
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```
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Please place client.html and service.jsp (see [Example 1](http://code.google.com/p/json-simple/wiki/JSPAndAJAXExamples#Example_1_-_Server_side_JSP_encoding)) in the same directory and then open client.html in IE or Firefox, click the link and you'll get result. |