ServletContext存储属性值
1.创建一个HelloServlet 继承HttpServletclass HelloServlet extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {ServletCon
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1.创建一个HelloServlet 继承HttpServlet
class HelloServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
ServletContext i=this.getServletContext();
i.setAttribute("name","zxszxs");
resp.getWriter().print("info");
2.创建另一个类获取ServletContext
class GetServlet extends HelloServlet{
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
ServletContext i=this.getServletContext();
String s= (String) i.getAttribute("zxs");
resp.getWriter().print("name"+s);
}
- web.xml配置
<servlet>
<servlet-name>hello</servlet-name>
<servlet-class>com.kuang.servlet.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>hello</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>getc</servlet-name>
<servlet-class>com.kuang.servlet.GetServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>getc</servlet-name>
<url-pattern>/getc</url-pattern>
</servlet-mapping>
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