Ⅰ Servlet镄勮繍琛屽师鐞嗕笌鐢熷懡锻ㄦ湡鏄浠涔堬纻
Servlet鐢熷懡锻ㄦ湡鍒嗕负涓変釜阒舵碉细
1.鍒濆嫔寲阒舵 锛氲皟鐢╥nit()鏂规硶
2.鍝嶅簲瀹㈡埛璇锋眰阒舵碉细璋幂敤service()鏂规硶
3.缁堟㈤桩娈碉细璋幂敤destroy()鏂规硶