java的Request对象路径攻略！！！

Resquest对象获取各种路径信息

以下例子：  
此时项目请求的页面是index.jsp,项目是WebDemo，在index.jsp中获取有关request对象的各种路径信息如下
String path = request.getContextPath();  
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";  
String remoteAddress=request.getRemoteAddr();  
String servletPath=request.getServletPath();  
String realPath=request.getRealPath("/");  
String remoteUser=request.getRemoteUser();  
String requestURI=request.getRequestURI();  
out.println("path:"+path+"
");  
out.println("basePath:"+basePath+"
");  
out.println("remoteAddr:"+remoteAddress+"
");  
out.println("servletPath:"+servletPath+"
");  
out.println("realPath:"+realPath+"
");  
out.println("remoteUser:"+remoteUser+"
");  
out.println("requestURI:"+requestURI+"
");  
结果：  
path:/WebDemo  
basePath:http://localhost:8683/WebDemo/  
remoteAddr:127.0.0.1  
servletPath:/index.jsp  
realPath:D:\apache-tomcat-6.0.13\webapps\WebDemo\  
remoteUser:null  
requestURI:/WebDemo/index.jsp  
从上不难看出request各个对应方法所代表的含义