使用Javascript获取项目的根目录

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(function(){
			 //获取当前网址,如: http://localhost:8083/myproj/view/my.jsp
			 var curWwwPath = window.document.location.href;
			 //获取主机地址之后的目录,如: myproj/view/my.jsp
			 var pathName = window.document.location.pathname;
			 var pos = curWwwPath.indexOf(pathName);
			 //获取主机地址,如: http://localhost:8083
			 var localhostPaht = curWwwPath.substring(0, pos);
			 //获取带"/"的项目名,如:/myproj
			 var projectName = pathName.substring(0, pathName.substr(1).indexOf('/') + 1);

			 //得到了 http://localhost:8083/myproj
			 var realPath = localhostPaht + projectName;
			 alert(realPath);
		})();

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