request.getContextPath()、request.getRequestURI()、request.getRequestURI()、getServletPath() 太过爱你忘了你带给我的痛 2021-10-06 13:22 306阅读 0赞 ### 区别： ### * request.getContextPath()：得到项目的名字，即当前应用的根目录。 * request.getRequestURI()：返回相对路径 * request.getRequestURL()：返回绝对路径 * request.getServletPath()：返回Servlet所对应的url-pattern -------------------- #### 写一个最简单的Servlet：TestServlet.java #### public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String ContextPath = request.getContextPath(); System.out.println("ContextPath........"+ContextPath); String RequestURI = request.getRequestURI(); System.out.println("RequestURI........"+RequestURI); StringBuffer RequestURL = request.getRequestURL(); System.out.println("RequestURL........"+RequestURL); String ServletPath = request.getServletPath(); System.out.println("ServletPath........"+ServletPath); } #### web.xml中的配置如下； #### <servlet> <servlet-name>TestServlet</servlet-name> <servlet-class>test.TestServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>TestServlet</servlet-name> <url-pattern>/Test/TestServlet</url-pattern> </servlet-mapping> #### 在地址栏里输入URL为： #### http://localhost:8080/testpath/Test/TestServlet #### 输出结果为： #### ##### **其中，testpath为项目名。** ##### ContextPath......../testpath RequestURI......../testpath/Test/TestServlet RequestURL........http://localhost:8080/testpath/Test/TestServlet ServletPath......../Test/TestServlet
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