关于Servlet是否单例
实在不知道servlet是否单例的，于是乎，做了一个小小的测试，不知道这样测试是否准确，望大牛指正。感激!
1. 写了一个servlet
public class IsSingletonServlet extends HttpServlet {private static final long serialVersionUID = 485167805086334673L;@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {PrintWriter pw = resp.getWriter();pw.println(this);}}2. 配置web.xml
<servlet><servlet-name>checkSingleton</servlet-name><servlet-class>com.jesse.servlet.IsSingletonServlet</servlet-class></servlet><servlet-mapping><servlet-name>checkSingleton</servlet-name><url-pattern>/checksingleton</url-pattern></servlet-mapping>
3. 测试页面
<body><%String context = request.getContextPath();%><form action="<%=context %>/checksingleton" method="get"><input type="submit" value="测试是否单例"></form></body>
4. 同时打开多个页面访问，输出相同
com.jesse.servlet.IsSingletonServlet@4c230
5. 以上证实servlet是单例的