Servlet执行时一般实现哪几个方法?
public void init(ServletConfig config)
public ServletConfig getServletConfig()
public String getServletInfo()
public void service(ServletRequest request,ServletResponse response)
public void destroy()
public void init(ServletConfig config)
public ServletConfig getServletConfig()
public String getServletInfo()
public void service(ServletRequest request,ServletResponse response)
public void destroy()