A database query implemented with Ajax

Source: Internet
Author: User
Tags json mysql database
1.mysql Database

2.json Six rack package import

Json-jar Package Download

3.Servlet Backend Dopost method

After querying to the list object:

Jsonarray Jsonarray = jsonarray.fromobject (list);
Response.getwriter (). Print (jsonarray.tostring ());

Making JSON conversions

4.JSP Front Page

Function sel () {
	$.ajax ({
		   type: "POST",
		   URL: "Servlet",
		   dataType: "JSON",
		   success:function (data ) {
				   var str = "";  
	                str = "
User name Password
"+ Item.name +" "+ Item.password +"
"; $ ("#data"). html (str); } }); }
5. Output Result:

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