Question

使用此代码，我可以找到我的系统的IP但我想获得设备的所有IP和名称连接在网络中。我不能使用像php c＃这样的服务器端编程语言，因为我需要在本地操作整个系统。请帮忙。

 <!doctype html>
 <html><head>
 <meta charset="utf-8">
 <title>Network IP Address via ipcalf.com</title>
 </head><body>
  Your network IP is: <h1 id=list>-</h1> Make the locals proud.
 <script>

 // NOTE: window.RTCPeerConnection is "not a constructor" in FF22/23
 var RTCPeerConnection = /*window.RTCPeerConnection ||*/ window.webkitRTCPeerConnection || window.mozRTCPeerConnection;

 if (RTCPeerConnection) (function () {
 var rtc = new RTCPeerConnection({iceServers:[]});
 if (1 || window.mozRTCPeerConnection) {      // FF [and now Chrome!] needs a channel/stream to proceed
    rtc.createDataChannel('', {reliable:false});
 };

rtc.onicecandidate = function (evt) {
    // convert the candidate to SDP so we can run it through our general parser
    // see https://twitter.com/lancestout/status/525796175425720320 for details
    if (evt.candidate) grepSDP("a="+evt.candidate.candidate);
};
rtc.createOffer(function (offerDesc) {
    grepSDP(offerDesc.sdp);
    rtc.setLocalDescription(offerDesc);
}, function (e) { console.warn("offer failed", e); });


var addrs = Object.create(null);
addrs["0.0.0.0"] = false;
function updateDisplay(newAddr) {
    if (newAddr in addrs) return;
    else addrs[newAddr] = true;
    var displayAddrs = Object.keys(addrs).filter(function (k) { return addrs[k]; });
    document.getElementById('list').textContent = displayAddrs.join(" or perhaps ") || "n/a";
}

function grepSDP(sdp) {
    var hosts = [];
    sdp.split('\r\n').forEach(function (line) { // c.f. http://tools.ietf.org/html/rfc4566#page-39
        if (~line.indexOf("a=candidate")) {     // http://tools.ietf.org/html/rfc4566#section-5.13
            var parts = line.split(' '),        // http://tools.ietf.org/html/rfc5245#section-15.1
                addr = parts[4],
                type = parts[7];
            if (type === 'host') updateDisplay(addr);
        } else if (~line.indexOf("c=")) {       // http://tools.ietf.org/html/rfc4566#section-5.7
            var parts = line.split(' '),
                addr = parts[2];
            updateDisplay(addr);
        }
    });
}
})(); 
else {
document.getElementById('list').innerHTML = "<code>ifconfig | grep inet | grep -v inet6 | cut -d\" \" -f2 | tail -n1</code>";
document.getElementById('list').nextSibling.textContent = "In Chrome and Firefox your IP should display automatically, by the power of WebRTCskull.";
}

</script>

</body></html>

Answer 1

你不能。这不是一般可用的东西 - 本地网络上的设备不保证在网络上宣传自己，并且可能根本没有名称 - 并且在浏览器中运行的Javascript当然不可用

如何获取在javascript中连接在同一网络（wifi）中的所有PC的IP地址列表？

1 个答案: