关于request获取路径的几个参数实例

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从Request对象中可以获取各种路径信息，以下例子：

假设请求的页面是index.jsp,项目是WebDemo，则在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

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