使用ajax从数据库中取qq表情图片对应的快捷方式 /se
USE `demo`;
CREATE TABLE `qq` (
`id` int(11) NOT NULL auto_increment,
`pic` text,
`short` varchar(11) default NULL,
PRIMARY KEY (`id`)
) TYPE=MyISAM;
INSERT INTO `qq` VALUES (1,'qq/0.gif','wx');
有QQ表情的留言页
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<script type="text/javascript" src="net.js"></script>
<script type="text/javascript">
function addtoText(oElem){
var strValue = oElem;
var oTarget="content";
var url = 'getShort.jsp';
var strParams = 'q=' + strValue +
"&e=" +oTarget;
var loader1 = new
net.ContentLoader(url,FillDropDown,null,
"POST",strParams);
}
function FillDropDown(){
var xmlDoc = this.req.responseXML.documentElement;
var xSel = xmlDoc.getElementsByTagName("selectElement")[0];
var strEName = xSel.childNodes[0].firstChild.nodeValue;
var xRows = xmlDoc.getElementsByTagName("entry")[0];
var theValue = xRows.childNodes[0].firstChild.nodeValue;
document.getElementById(strEName).value+="/"+theValue;
document.getElementById(strEName).focus();
}
</script>
</head>
<body>
<form action="">
<table width="100%">
<tr> <td>
<%
for(int i=0;i<30;i++)
{
%>
<img src="qq/<%=i%>.gif" onclick="addtoText(<%=i+1%>)">
<%
if(i%17==0&&i!=0) //18个图标排一行
{
out.println("<br>");
}
%>
<%
}
%>
</td>
</tr>
<tr><td>
<textarea name="content" id="content" cols="60" rows="10"></textarea>
</td></tr>
</table>
</form>
</body>
</html>
getShort.jsp
<%@ page language="java" import="java.util.*,java.sql.*,java.io.*" pageEncoding="GB2312"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
</head>
<body>
<%
String strElem=request.getParameter("e");
String strQuery =request.getParameter("q");
Class.forName("com.mysql.jdbc.Driver").newInstance();
String url ="jdbc:mysql://localhost/demo?user=root&password=";
Connection conn= DriverManager.getConnection(url);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
String sql="select short from qq where id="+strQuery;
ResultSet rs=stmt.executeQuery(sql);
StringBuilder strXML =new StringBuilder("<?xml version='1.0' ?>");
strXML.append("<selectChoice>");
strXML.append("<selectElement>");
strXML.append("<formElem>"+strElem+"</formElem>");
strXML.append("</selectElement>");
if(rs.next())
{
strXML.append("<entry>");
strXML.append("<optionValue>"+rs.getString("short")+"</optionValue>");
strXML.append("</entry>");
}
strXML.append("</selectChoice>");
response.setContentType("text/xml");
PrintWriter out2= response.getWriter();
out2.write(strXML.toString());
out2.close();
%>
</body>
</html>