1
好的,在MyServlet.java
如何在Javascript客户端解码XML消息(从Servlet响应)?
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
String chat=req.getParameter("chat");
String last=req.getParameter("last");
//String text="<message>data here</message>";--> does not work because it contains <message>
String text="....";
resp.setContentType("text/xml");
String xml="<?xml version=\"1.0\" ?><root>"+
"<message id=\"0\">"+
"<user>1</user>" +
"<text>"+ text + "</text>"+
"<time>10:30</time>"+
"</message>"+
"</root>";
resp.getWriter().println(xml);
}
在ajaxchat.html
//Function for handling the return of chat text
function handleReceiveChat() {
if (receiveReq.readyState == 4) {
var chat_div = document.getElementById('div_chat');
var xmldoc = receiveReq.responseXML;
var message_nodes = xmldoc.getElementsByTagName("message");
var n_messages = message_nodes.length
for (i = 0; i < n_messages; i++) {
var user_node = message_nodes[i].getElementsByTagName("user");
var text_node = message_nodes[i].getElementsByTagName("text");
var time_node = message_nodes[i].getElementsByTagName("time");
chat_div.innerHTML += user_node[0].firstChild.nodeValue + ' ';
chat_div.innerHTML += '<font class="chat_time">' + time_node[0].firstChild.nodeValue + '</font><br />';
chat_div.innerHTML += text_node[0].firstChild.nodeValue + '<br />';
chat_div.scrollTop = chat_div.scrollHeight;
lastMessage = (message_nodes[i].getAttribute('id'));
}
mTimer = setTimeout('getChatText();',2000); //Refresh our chat in 2 seconds
}
}
的2上面的代码很好地工作。但是,我遇到了一个严重的问题。也就是说,如果用户发送的邮件中包含类似于“<message>
”,“</message>
”,“<user>
”,“</user>
”等标签的文字,则不起作用。
所以我的问题是:
如何在JavaScript客户端解码XML消息(即从Servlet的responsed)?
但它有另一个问题,当用户输入“**文本 **”时,那么消息应该是“** 文本 **”。但是,它只显示“**文本**” –
Tom
您是否使用过我的解决方案? – chandil03
我做了&我看不到“” –
Tom