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dwr_实现无刷新获取数据

时间:2013-04-26 13:59来源:www.chengxuyuans.com 点击:

web.xml 配置:

<servlet>

? <servlet-name>dwr-invoker</servlet-name>

? <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>

? <init-param>

? ?<param-name>debug</param-name>

? ?<param-value>true</param-value>

? </init-param>

? <load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

? <servlet-name>dwr-invoker</servlet-name>

? <url-pattern>/dwr/*</url-pattern>

</servlet-mapping>

?

dwr.xml:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">

<dwr>

?<allow>

? <create creator="new" javascript="FirstDWR">

? ?<param name="class" value="com.zte.gateway.web.am.action.FirstDWR" />

? </create> ?

? <convert match="com.zte.gateway.web.am.action.StringOBJ" javascript="StringOBJ"

? ?converter="bean" />

?</allow>

</dwr>

?

页面:

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>

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

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<script type="text/javascript" src="<%=request.getContextPath() %>/dwr/engine.js"></script>

<script type="text/javascript" src="<%=request.getContextPath() %>/dwr/util.js"></script>

<script type="text/javascript" src="<%=request.getContextPath() %>/dwr/interface/FirstDWR.js"></script>

<script type="text/javascript">

function goshow(){

? ? ?FirstDWR.returnStrs("aaa", getResult);

}

var cellFuncs = [?function(StringOBJ) { return StringOBJ.str; }];

function getResult(result){

?dwr.util.setEscapeHtml(false);

?var options = {

? cellCreator:function(options){

? ?var td = document.createElement("td");

? ?return td;

? }

?};

?dwr.util.addRows("pattern", result, cellFuncs, options);

}

//定时执行

//setInterval("goshow()",1000); ?

</script>

<title>Insert title here</title>

</head>

<body>

? ? <input type="button" onclick="goshow()" value="查 ?询"/>

? ? ? <table class="tdata w_4">

? ? ? ? ?<thead><tr><th>值</th></tr></thead>

? ? ? ? ?<tbody id="pattern"/>

? ? ? ? <tfoot><tr><td colspan="4" class="tright"></td></tr></tfoot>

? ? ?</table>

</body>

</html>

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