README.md

servlet

servlet容器

运行servlet，filter等的软件环境
可以创建并调用servlet相关的生命周期的方法。

HttpServletRequest

//获取url中?后面的参数
System.out.println("getQueryString=" + httpServletRequest.getQueryString());
//获取url中项目根路径(/web)后面的路径
System.out.println("getPathInfo=" + httpServletRequest.getPathInfo());
//获取url中根路径(/)后面的路径
System.out.println("getRequestURI=" + httpServletRequest.getRequestURI());
//获取url中项目根路径(/web)
System.out.println("getContextPath=" + httpServletRequest.getContextPath());
//获取当前url所匹配到的ServletMapping
HttpServletMapping httpServletMapping = httpServletRequest.getHttpServletMapping();
//url-pattern中*的内容
System.out.println("httpServletMapping.getMatchValue=" + httpServletMapping.getMatchValue());
//匹配到的ServletMapping中的servletName
System.out.println("httpServletMapping.getServletName=" + httpServletMapping.getServletName());