对于DWR不是太熟,所以有点问题。 请帮我找找问题所在吧。 先谢了。在js中函数
<script language="javascript1.2">
var vote_siteId = "012332323232";
function Vote_doVote(voteId) {
var arr = document.getElementsByName(voteId);
var selectId = "";
for (var i = 0; i < arr.length; i ++) {
if (arr[i].checked) {
selectId = arr[i].getAttribute("id");
}
}
if (selectId == "") {
alert("请选择一项信息");
return;
}
callMethod(function(str){
if (str == "true") {
alert("投票成功");
} else {
alert("投票失败,同一ip只能投一票!");
}
},"org.plugin.vote.action.VoteAction.doVote",vote_siteId,voteId,selectId);
}
</script>
在html页面提交时,总是提示“callMethod(function(str){.........}函数中缺少对象“其中org.plugin.vote.action.VoteAction.doVote函数。如下:
public String doVote(HttpServletRequest request, String siteId, String voteId, String selectId)
{
String userIp = request.getRemoteAddr();
if (this.voteRuleService.getVoted(voteId).size() > 0) {
return "false";
}
................
}
<script language="javascript1.2">
var vote_siteId = "012332323232";
function Vote_doVote(voteId) {
var arr = document.getElementsByName(voteId);
var selectId = "";
for (var i = 0; i < arr.length; i ++) {
if (arr[i].checked) {
selectId = arr[i].getAttribute("id");
}
}
if (selectId == "") {
alert("请选择一项信息");
return;
}
callMethod(function(str){
if (str == "true") {
alert("投票成功");
} else {
alert("投票失败,同一ip只能投一票!");
}
},"org.plugin.vote.action.VoteAction.doVote",vote_siteId,voteId,selectId);
}
</script>
在html页面提交时,总是提示“callMethod(function(str){.........}函数中缺少对象“其中org.plugin.vote.action.VoteAction.doVote函数。如下:
public String doVote(HttpServletRequest request, String siteId, String voteId, String selectId)
{
String userIp = request.getRemoteAddr();
if (this.voteRuleService.getVoted(voteId).size() > 0) {
return "false";
}
................
}
我有一个Dwr练习列子,分享给你,希望对你有用
代码如下:
JSP代码<%@ page language="java" contentType="text/html; charset=GBK" %>
<% String path = request.getContextPath(); %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>First DWR</title>
<script type="text/javascript" src="<%=path%>/dwr/engine.js"></script>
<script type="text/javascript" src="<%=path%>/dwr/util.js"></script>
<script type="text/javascript" src="<%=path%>/dwr/interface/Hello.js"></script>
<script language="javascript">
function hello() {
var userValue = dwr.util.getValue("user"); //获取参数方法1
alert("使用Dwr框架取得Html 参数的值>"+userValue);
Hello.hello(userValue,ccc);//这里的hello是Hello类中的方法
alert("使用Dwr框架取得Html 参数的值>"+userValue);
}
//ccc回调方法Date返回的数据
function ccc(data){
alert("Hello. hello 返回值"+data);
alert("Dwr 框架 重新构建HTML web"+data);
dwr.util.setValue("responseDiv",data);
}
</script>
</head>
<body>
<input id="user" name="user222" type="text" value="ddd" />
<input type="button" value="HELLO" onclick="hello();" />
<hr/>
<div id="responseDiv"></div>
</body>
</html>Hello类public class Hello {
public String hello(String name) {
System.out.println("server:HELLO 方法被调用!");
String str = " hello !" + name + "!this is my first DWR!";
System.out.println("server:response>>"+str);
return str;
}
}