<form id="indexForm" name="indexForm" action="LoginAction" method="post">
<table>
<tr>
<td id="fname" class="fontStyle">First Name :</td>
<td id="fvalue"><input type="text" id="firstname"
name="firstname" /></td>
<td id="lname" class="fontStyle">Last Name :</td>
<td id="lvalue"><input type="text" id="lastname" name="lastname" /></td>
</tr>
<tr>
<td></td>
<td>
<center><!-- <input type="button" value="End Chat" onclick="getValues()" /> -->
<a id="button" href="javascript:getValues();">Start chat</a></center>
</td>
<td>
<center><!-- <input type="button" value="End Chat" /> --> <a
id="button" href="javascript:logout();">Stop chat</a></center>
</td>
<td></td>
</tr>
</table>
</form>
</div>
<div style="display: none;" id="div">
<div><textarea id="textarea" rows="10"></textarea></div>
<div>
<table>
<tr>
<td id="msg" class="fontStyle">message :</td>
<td id="msgvalue"><input size="40" type="text" id="message" /></td>
<td style="width: 5%;"></td>
<td><!-- <input type="button" value="send" onclick="sendMessage()" /> -->
<a id="button3" href="javascript:sendMessage();">Send</a></td>
</tr>
</table>
</div>
</div>
在我的JavaScript中，
var message ;
var textarea ;
function sendMessage(){
message = document.getElementById("message").value;
textarea = document.getElementById("textarea");
try
{
xmlhttp.onreadystatechange=function()
{
//alert("Status : "+xmlhttp.status+"\nreadyState : "+xmlhttp.readyState);
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
var checkMsg = encodeURIComponent(xmlhttp.responseText.toString());
if(checkMsg != "null" && checkMsg != null){
//document.getElementById("textarea").innerHTML += checkMsg;
if(textarea.value == "")
textarea.value = checkMsg;
else
textarea.value += "\n"+ checkMsg ;
}
}
};
xmlhttp.open("POST","SendMessageAction?message="+encodeURIComponent(message)+"&sid"+Math.random(),true);
xmlhttp.send();
}
catch(err)
{
alert(err.description);
}
}
在我的servlet中，
package com.tps.flexchat.action;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.genesyslab.platform.webmedia.protocol.FlexChatProtocol;
import com.tps.flexchat.Request.SendMessage;
import com.tps.flexchat.info.ApplicationInfo;
import com.tps.flexchat.info.CustomerInfo;
public class SendMessageAction extends HttpServlet {
private static final long serialVersionUID = 1L;
private String msg;
private String seckey;
private String uid;
private String sessionId;
private int counter;
private FlexChatProtocol protocol = null;
private SendMessage message;
public SendMessageAction() {
super();
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
msg = request.getParameter("message");
seckey = request.getParameter("securekey");
uid = request.getParameter("userId");
sessionId = request.getParameter("sessionId");
//counter =Integer.parseInt(request.getParameter("counter"));
counter = 1;
protocol = ApplicationInfo.flexProtocol;
message = new SendMessage();
message.send(msg, seckey, uid, sessionId, counter, protocol);
CustomerInfo customer = ApplicationInfo.customerDetails.get(uid);
out.print(customer.getMessage());
}
}
sessionId，userId，secureKey可以由genesys生成并且可以正常工作。仅MSG存在问题...
在java类中，
package com.tps.flexchat.Request;
import com.genesyslab.platform.commons.protocol.ChannelState;
import com.genesyslab.platform.commons.protocol.Message;
import com.genesyslab.platform.commons.protocol.ProtocolException;
import com.genesyslab.platform.webmedia.protocol.FlexChatProtocol;
import com.genesyslab.platform.webmedia.protocol.flexchat.EventInfo;
import com.genesyslab.platform.webmedia.protocol.flexchat.MessageText;
import com.genesyslab.platform.webmedia.protocol.flexchat.TreatAs;
import com.genesyslab.platform.webmedia.protocol.flexchat.UserType;
import com.genesyslab.platform.webmedia.protocol.flexchat.events.EventStatus;
import com.genesyslab.platform.webmedia.protocol.flexchat.requests.RequestRefresh;
import com.tps.flexchat.info.ApplicationInfo;
import com.tps.flexchat.info.CustomerInfo;
public class SendMessage {
int i = 0;
public void send(String msg,String seckey, String uid, String sessionId, int counter, FlexChatProtocol protocol){
CustomerInfo customer = ApplicationInfo.customerDetails.get(uid);
RequestRefresh refresh = RequestRefresh.create();
refresh.setMessageText(MessageText.create(null, TreatAs.NORMAL, msg));
refresh.setFromPosition(customer.getFromPosition()+1);
refresh.setSecureKey(seckey);
refresh.setUserId(uid);
try {
if(protocol.getState() == ChannelState.Opened){
Message resp = protocol.request(refresh);
if(resp != null){
EventStatus status = (EventStatus)resp;
if(status.messageId() == EventStatus.ID){
String userId = status.getUserId();
if(status.getFlexTranscript() != null && status.getFlexTranscript().getEventInfoList() != null){
EventInfo info = (EventInfo) status.getFlexTranscript().getEventInfoList().getLast();
if(customer != null){
customer.setFromPosition(status.getFlexTranscript().getLastPosition());
customer.addMessage(info.getText());
}
}
}
}
//System.out.println(msg+";"+seckey+";"+uid+";"+sessionId+";"+counter);
}else{
protocol.open();
}
} catch (ProtocolException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
[当我在文本字段中键入任何特殊字符并按下发送按钮时，它将调用JavaScript中的sendMessage()，并在文本区域中显示除％符号之外的值。[%符号以外的所有特殊字符都起作用。
如何显示%符号？
escape()，请改用encodeURIComponent()。有关详细信息，请参见this。message = encodeURIComponent(document.getElementById("message").value);
用<textarea>而不是.value在.innerText中设置值。
textarea.value = textarea.value ? textarea.value + '\n' + checkMsg : checkMsg;
第三，在发出Content-type:application/x-www-form-urlencoded请求时，需要在requestHeader中设置POST。并使用xhr.send(data)发送有效负载，而不用查询字符串传递它。
xmlhttp.open("POST", "SendMessageAction?sid="+Math.random(), true); xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xmlhttp.send("message=" + message);
全部加起来，假设您的回答是简单的（不是用url编码编码的，这是不必要的！]]）>>
var messageEl = document.getElementById("message"); var textareaEl = document.getElementById("textarea"); function sendMessage(){ var xhr = new XMLHttpRequest(); xhr.onload = function(evt) { var checkMsg = xhr.responseText; if (textareaEl.value) textareaEl.value += '\n'; textareaEl.value += checkMsg; }; xhr.onerror = function(evt) { // handle the error. }; xhr.open('POST', "SendMessageAction?sid="+Math.random(), true); xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xhr.send("message=" + encodeURIComponent(messageEL.value)); }而且您的问题应自行解决。我可以看到您已经在转义邮件，但是看起来您还需要URL -encode，然后-decode邮件。 URL中使用+符号表示空格，因此，除非对它们进行编码（除非将其编码为'％2B'），否则所有实际的+符号都将被删除。在Java语言方面，您可以使用
encodeURIComponent()和decodeURIComponent()，而在Java语言方面，可以使用URLDecoder和URLEncoder。在您的Javascript中添加类似...
var checkMsg = decodeURIComponent(xmlhttp.responseText.toString()); ... xmlhttp.open("POST","SendMessageAction?message=" + encodeURIComponent(message) +"&sid"+Math.random(),true);...以及在发送/接收消息的Java代码中...
String inMessage = URLDecoder.decode(rawMessage, "UTF-8"); ... return URLEncoder.encoder(outMessage, "UTF-8");
解决方法是，当使用AJAX将值发送到servlet时，我使用了encodeURIComponent（）和encodeURIComponent（）而不是escape（）。
我的脚本是这样的，
var checkMsg = decodeURIComponent(xmlhttp.responseText.toString()); ... xmlhttp.open("POST","SendMessageAction?message=" + encodeURIComponent(message)感谢所有支持我的人....