JS method to obtain the full path of the file domain, compatible with different browsers

Today I am working on a project where I need to hide the input file and then get its value, but even jquery cannot get its value

Copy code The code is as follows: //FX get file path method function readFileFirefox(fileBrowser) { try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); } catch (e) { alert('Cannot access local file due to browser security settings. To overcome this, follow Follow these steps: (1) Enter "about:config" in the address bar; (2) Right-click and select New->Boolean; (3) Enter "signed.applets.codebase_principal_support" (without quotes) as a new The name of the preference; (4) Click OK and try to reload the file'); return; } var fileName=fileBrowser.value; //This step will get the full path to the client. The judgment below is too complicated, and the ie below is also very complicated. var file = Components.classes["@mozilla.org/file/local;1"] .createInstance(Components.interfaces.nsILocalFile); try { // Back slashes for windows file.initWithPath( fileName.replace(///g, "\\") ); } catch(e) { if (e.result!=Components.results.NS_ERROR_FILE_UNRECOGNIZED_PATH ) throw e; alert("File '" fileName "' cannot be loaded: relative paths are not allowed. Please provide an absolute path to this file."); return; } if ( file.exists() == false ) { alert("File '" fileName "' not found."); return; } return file.path; } //Get the path according to different browsers function getvl(){ //Determine the browser var Sys = {}; var ua = navigator.userAgent.toLowerCase() ; var s; (s = ua.match(/msie ([d.] )/)) ? Sys.ie = s[1] : (s = ua.match(/firefox /([d.] )/)) ? Sys.firefox = s[1] : (s = ua.match(/chrome/([d.] )/)) ? Sys.chrome = s[1 ] : (s = ua.match(/opera.([d.] )/)) ? Sys.opera = s[1] : (s = ua.match(/version/([d .] ).*safari/)) ? Sys.safari = s[1] : 0; var file_url=""; if(Sys.ie // ie5.5,ie6.0 file_url = document.getElementById("file").value; }else if(Sys.ie>="7.0"){ //ie7,ie8 var file = document.getElementById("file"); file.select(); file_url = document.selection.createRange().text; }else if(Sys.firefox){ //fx //file_url = document.getElementById("file").files[0].getAsDataURL();//The path obtained is the encrypted string recognized by FF file_url = readFileFirefox(document .getElementById("file")); } //alert(file_url); document.getElementById("text").innerHTML="Get the full path of the file domain:" file_url; } JS method to obtain the full path of the file domain, compatible with different browsers

How does js get the full path of the file control? Specific implementation code_javascript skills

JS method to obtain the full path of the file domain, compatible with different browsers