blocks|key|1574436|text|我认为在javascript标准库中没有主机或ip地址的概念。因此，您必须访问一些外部服务来为您查找主机名。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1574437|除非您可能希望向服务器发送请求，该服务器将返回主机IP地址！！|1574438|编辑|offset|length|style|BOLD|1574439|在JSP中，您可以使用来自getRemoteHost()的HttpServletRequest方法。|1574440|以获取用户的IP地址。|1574441|所以你可以写这样的东西-|1574442|var+ip+=+'<%25=request.getRemoteHost();%25>';+|code-block|syntax|javascript|1574443|%5E%5E上面的行是JSP代码，这应该是从java容器返回的JSP文件的一部分，就像tomcat一样。这在静态HTML页面中不起作用。|1574444|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html#getRemoteHost()|1|http://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html^0|0|0|0|2|0|D|F|0|T|I|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|18|8|@$F|19|G|1A|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1B|8|@]|9|@$F|1C|G|1D|1|1E]|$F|1F|G|1G|1|1H]]|A|$]]|$1|L|3|M|5|6|7|1I|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1J|8|@]|9|@]|A|$]]|$1|P|3|Q|5|R|7|1K|8|@]|9|@]|A|$S|T]]|$1|U|3|V|5|6|7|1L|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]|14|$5|Z|10|11|A|$12|15]]]]

I dont think that there is a notion of hosts or ip-addresses in the javascript standard library. So you'll have to access some external service to look up hostnames for you.

Unless you might want to send a request to the server which returns you the host IP address!!

EDIT

In JSP you you can use <a href="http://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html#getRemoteHost()" rel="noreferrer">getRemoteHost()</a> method from <a href="http://docs.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html" rel="noreferrer">HttpServletRequest</a> 

to get the IP address of the user.

So you can write something like this - 

<pre><code>var ip = '&lt;%=request.getRemoteHost();%&gt;'; 
</code></pre>

^^ the above line is JSP code, this should be part of the JSP file that you return from java servlet container like a tomcat. This does not work in static HTML pages.

blocks|key|530912|text|尝试以下代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|530913|function+myIP()+{
++++if+(window.XMLHttpRequest)+xmlhttp+=+new+XMLHttpRequest();
++++else+xmlhttp+=+new+ActiveXObject("Microsoft.XMLHTTP");

++++xmlhttp.open("GET","http://api.hostip.info/get_html.php",false);
++++xmlhttp.send();

++++hostipInfo+=+xmlhttp.responseText.split("\n");

++++for+(i=0;+hostipInfo.length+>=+i;+i%2B%2B)+{
++++++++ipAddress+=+hostipInfo[i].split(":");
++++++++if+(+ipAddress[0]+==+"IP"+)+return+ipAddress[1];
++++}

++++return+false;
}|code-block|syntax|javascript|530914|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try the following code

<pre><code>function myIP() {
 if (window.XMLHttpRequest) xmlhttp = new XMLHttpRequest();
 else xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

 xmlhttp.open("GET","http://api.hostip.info/get_html.php",false);
 xmlhttp.send();

 hostipInfo = xmlhttp.responseText.split("\n");

 for (i=0; hostipInfo.length &gt;= i; i++) {
 ipAddress = hostipInfo[i].split(":");
 if ( ipAddress[0] == "IP" ) return ipAddress[1];
 }

 return false;
}
</code></pre>

blocks|key|1574487|text|从这里那里你可以做到这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1574488|/**
+*+Get+the+user+IP+throught+the+webkitRTCPeerConnection
+*+@param+onNewIP+{Function}+listener+function+to+expose+the+IP+locally
+*+@return+undefined
+*/
function+getUserIP(onNewIP)+{+//++onNewIp+-+your+listener+function+for+new+IPs
++++//compatibility+for+firefox+and+chrome
++++var+myPeerConnection+=+window.RTCPeerConnection+%7C%7C+window.mozRTCPeerConnection+%7C%7C+window.webkitRTCPeerConnection;
++++var+pc+=+new+myPeerConnection({
++++++++iceServers:+[]
++++}),
++++noop+=+function()+{},
++++localIPs+=+{},
++++ipRegex+=+/([0-9]{1,3}(\.[0-9]{1,3}){3}%7C[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g,
++++key;

++++function+iterateIP(ip)+{
++++++++if+(!localIPs[ip])+onNewIP(ip);
++++++++localIPs[ip]+=+true;
++++}

+++++//create+a+bogus+data+channel
++++pc.createDataChannel("");

++++//+create+offer+and+set+local+description
++++pc.createOffer().then(function(sdp)+{
++++++++sdp.sdp.split('\n').forEach(function(line)+{
++++++++++++if+(line.indexOf('candidate')+<+0)+return;
++++++++++++line.match(ipRegex).forEach(iterateIP);
++++++++});

++++++++pc.setLocalDescription(sdp,+noop,+noop);
++++}).catch(function(reason)+{
++++++++//+An+error+occurred,+so+handle+the+failure+to+connect
++++});

++++//listen+for+candidate+events
++++pc.onicecandidate+=+function(ice)+{
++++++++if+(!ice+%7C%7C+!ice.candidate+%7C%7C+!ice.candidate.candidate+%7C%7C+!ice.candidate.candidate.match(ipRegex))+return;
++++++++ice.candidate.candidate.match(ipRegex).forEach(iterateIP);
++++};
}

//+Usage

getUserIP(function(ip){
++++alert("Got+IP!+:"+%2B+ip);
});|code-block|syntax|javascript|1574489|entityMap|0|LINK|mutability|MUTABLE|url|https://ourcodeworld.com/articles/read/257/how-to-get-the-client-ip-address-with-javascript-only^0|1|2|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Given from <a href="https://ourcodeworld.com/articles/read/257/how-to-get-the-client-ip-address-with-javascript-only" rel="noreferrer">here</a> you can do that. 

<pre><code>/**
 * Get the user IP throught the webkitRTCPeerConnection
 * @param onNewIP {Function} listener function to expose the IP locally
 * @return undefined
 */
function getUserIP(onNewIP) { // onNewIp - your listener function for new IPs
 //compatibility for firefox and chrome
 var myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
 var pc = new myPeerConnection({
 iceServers: []
 }),
 noop = function() {},
 localIPs = {},
 ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/g,
 key;

 function iterateIP(ip) {
 if (!localIPs[ip]) onNewIP(ip);
 localIPs[ip] = true;
 }

 //create a bogus data channel
 pc.createDataChannel("");

 // create offer and set local description
 pc.createOffer().then(function(sdp) {
 sdp.sdp.split('\n').forEach(function(line) {
 if (line.indexOf('candidate') &lt; 0) return;
 line.match(ipRegex).forEach(iterateIP);
 });

 pc.setLocalDescription(sdp, noop, noop);
 }).catch(function(reason) {
 // An error occurred, so handle the failure to connect
 });

 //listen for candidate events
 pc.onicecandidate = function(ice) {
 if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) return;
 ice.candidate.candidate.match(ipRegex).forEach(iterateIP);
 };
}

// Usage

getUserIP(function(ip){
 alert("Got IP! :" + ip);
});
</code></pre>

blocks|key|1574543|text|用C语言编写的cgi返回环境参数的列表，其中包括REMOTE_ADDR.它构成任何HTML页面的基础，提供在HTTP服务器(例如Apache2)中启用cgi。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1574544|只需编译目录/cgi/bin中的源代码，然后从浏览器中调用它。|1574545|/*+-----------------------------------------------------
ENVVARS.C
A+simple+program+in+C+designed+for+working
in+a+CGI+context+-+print+the+environment
variables.
--------------------------------------------------+*/
#include+<stdio.h>
#include+<stdlib.h>
#include+<string.h>
#include+<sys/types.h>
#include+<unistd.h>
//+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//++m++a++i++n
//+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int+main(int+argc,+char+**argv,+char+**env)
{
char+**pe;
printf("Content-type:+text/html\n\n"
"<html>"
"<head>"
"<title>ENVVARS</title>"
"<body>"
"<h1>ENVVARS</h1>"
"<h3>My+pid+is:+%25d</h3>\n",getpid());
printf("<ul>");
for+(pe=env;+pe+&&+*pe;+pe%2B%2B)+printf("<li>%25s<//li>\n",*pe);
printf("</ul>");
printf("</body></html>");
return+0;
}+//+end+main
////////////////////+EOF+//////////////////////////////|code-block|syntax|javascript|1574546|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The cgi, written in C-language bellow, returns the list of the environment parameters, among them REMOTE_ADDR. It constitutes a base for any HTML page, providing cgi are enabled in the HTTP server (Apache2 for instance).

Just compile the source in your directory /cgi/bin and call it from your browser.

<pre><code>/* -----------------------------------------------------
ENVVARS.C
A simple program in C designed for working
in a CGI context - print the environment
variables.
-------------------------------------------------- */
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;string.h&gt;
#include &lt;sys/types.h&gt;
#include &lt;unistd.h&gt;
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// m a i n
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
int main(int argc, char **argv, char **env)
{
char **pe;
printf("Content-type: text/html\n\n"
"&lt;html&gt;"
"&lt;head&gt;"
"&lt;title&gt;ENVVARS&lt;/title&gt;"
"&lt;body&gt;"
"&lt;h1&gt;ENVVARS&lt;/h1&gt;"
"&lt;h3&gt;My pid is: %d&lt;/h3&gt;\n",getpid());
printf("&lt;ul&gt;");
for (pe=env; pe &amp;&amp; *pe; pe++) printf("&lt;li&gt;%s&lt;//li&gt;\n",*pe);
printf("&lt;/ul&gt;");
printf("&lt;/body&gt;&lt;/html&gt;");
return 0;
} // end main
//////////////////// EOF //////////////////////////////
</code></pre>

I want to get Ip address of my machine in javascript which is further refer in my html page.
I have refer all the suggested links but I do not get any answer.
I do not want to use any link to get the IP so i tried with following line of code in my javascript 

<pre><code>var ip = '&lt;%=request.getRemoteAddr();%&gt;';
</code></pre>

or

<pre><code>var ip = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
var ip = Request.UserHostAddress.ToString();
</code></pre>

But do not get the result.

Please help me to get the solution.I want to include this javascript in my html page and I do not want to use any link to get the IP.

<code>All the links I have gone through gives the external links to get the IP address and I do not want to use any external link to get the IP.</code>

How to get local IP address in javascript html5

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想在javascript中获得我的机器的Ip地址，这在我的html页面中有进一步的参考。我有参考所有建议的链接，但我没有得到任何答复。我不想使用任何链接来获取IP，所以我在javascript中尝试了下面的代码行var ip = '<%=request.getRemoteAddr();%>';或var ip = Ht...

问如何在javascript html5中获取本地IP地址
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问如何在javascript html5中获取本地IP地址
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