HttpServletRequest的一些方法

配置tomcat5.0的端口为：８０，应用的context path=""，应用结果如下：

  System.out.println("request url is: " + request.getRequestURI()); (Returns the part of this request's URL from the protocol name up to the query string in the first line of the HTTP request.)

  System.out.println("PathInfo is: " + request.getPathInfo());

  System.out.println("getQueryString is: " + request.getQueryString());

  System.out.println("getPathTranslated()is: " + request.getPathTranslated());

  System.out.println("getServletPath()  is: " + request.getServletPath()); (Returns the part of this request's URL that calls the servlet. This includes either the servlet name or a path to the servlet, but does not include any extra path information or a query string.在Struts中的有关配置：web.xml中：

    <servlet-name>action</servlet-name>

    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>

  <servlet-mapping>

    <servlet-name>action</servlet-name>

    <url-pattern>*.do</url-pattern>

  </servlet-mapping>

)

分别得到下面的结果：

request url is: /disGoalContentAction.do

PathInfo is: null

getQueryString is: goalID=619&naviStr=a10

getPathTranslated()is: null

getServletPath()  is: /disGoalContentAction.do

配置tomcat5.0的端口为：８０８０，应用的context path="/learndiary"，应用结果如下：

request url is: /learndiary/disGoalContentAction.do

PathInfo is: null

getQueryString is: goalID=313&naviStr=a10

getPathTranslated()is: null

getServletPath()  is: /disGoalContentAction.do

从下面的网址可以得到一些有关request header的知识

http://web-sniffer.net/?url=http%3A%2F%2Fwww.learndiary.com%2FdisDiaryContentAction.do%3FsearchDiaryID%3D%26goalID%3D1219%26naviStr%3Da10a21105&submit=Submit&http=1.1&gzip=yes&type=GET&ua=Mozilla%2F4.0+%28compatible%3B+MSIE+6.0%3B+Windows+NT+5.0%3B+.NET+CLR+1.1.4322%29+Web-Sniffer%2F1.0.22