How to get the data via ajax in servlet?

Question

I would like to send some data on the page to servlet so I have written following jquery to do this I use all data to build a json string, and directly send it to servlet but I don't know how to get the whole data from the ajax in servlet ``` $("#save").click ( function() { $.ajax ( { url:'/WebApplication1/Controller', data:'{"name":"abc","address":"cde"}', type:'post', cache:false, success:function(data){alert(data);}, error:function(){alert('error');} } ); } ); ``` if see the the Form Data segment of request headers from chrome you will see the whole json string is the key. ``` Request URL:http://192.168.0.13/WebApplication1/Controller Request Method:POST Status Code:404 Not Found Request Headersview source Accept:*/* Accept-Charset:Big5,utf-8;q=0.7,*;q=0.3 Accept-Encoding:gzip,deflate,sdch Accept-Language:zh-TW,zh;q=0.8,en-US;q=0.6,en;q=0.4 Connection:keep-alive Content-Length:112 Content-Type:application/x-www-form-urlencoded Host:192.168.0.13 Origin:http://192.168.0.13 Referer:ht…

Accepted Answer

Look here,

```
data:'{"name":"abc","address":"cde"}',
```

Your `data` attribtue is wrong. It should not be a string, but a real JSON object. Remove those singlequotes.

```
data:{"name":"abc","address":"cde"},
```

This way it's available in the servlet the usual way

```
String name = request.getParameter("name"); // abc
String address = request.getParameter("address"); // cde
```

If it still doesn't work, head to How should I use servlets and Ajax? for complete kickoff examples, just in order to exclude that your actual problem is caused elsewhere.

How to get the data via ajax in servlet?

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