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Servlet的生命周期?Servlet如何处理用户的请求?

2020年02月14日 云计算 ⁄ 共 1596字 ⁄ 字号 评论关闭

  1、简述Servlet的生命周期

607的彩的正确网址  servlet shengmingzhouqikebeidingyiweicongchuangjianzhidaohuimiedezhenggeguocheng。yixiashi servlet zunxundeguocheng:

  servlet xianjiazaigouzaofangfa,bingtongguodiaoyong init () fangfajinxingchushihua。

  servlet diaoyong service() fangfalaichulikehuduandeqingqiu。

607的彩的正确网址  servlet tongguodiaoyong destroy() fangfazhongzhi(jieshu)。

  zuihou,servlet shiyou jvm delajihuishouqijinxinglajihuishoude。

  init()方法:

607的彩的正确网址  init fangfabeishejichengzhidiaoyongyici。tazaidiyicichuangjian servlet shibeidiaoyong,zaihouxumeiciyonghuqingqiushibuzaidiaoyong。

  servlet chuangjianyuyonghudiyicidiaoyongduiyingyugai servlet de url shi,danshininyekeyizhiding servlet zaifuwuqidiyiciqidongshibeijiazai。

607的彩的正确网址  dangyonghudiaoyongyige servlet shi,jiuhuichuangjianyige servlet shili,meiyigeyonghuqingqiudouhuichanshengyigexindexiancheng,shidangdeshihouyijiaoji doget huo dopost fangfa。init() fangfajiandandichuangjianhuojiazaiyixieshuju,zheixieshujujiangbeiyongyu servlet dezhenggeshengmingzhouqi。

  service()方法:

  service() fangfashizhixingshijirenwudezhuyaofangfa。servlet rongqi(ji web fuwuqi)diaoyong service() fangfalaichulilaizikehuduan(liulanqi)deqingqiu,bingbageshihuadexiangyingxiehuijikehuduan。

  meicifuwuqijieshoudaoyige servlet qingqiushi,fuwuqihuichanshengyigexindexianchengbingdiaoyongfuwu。service() fangfajiancha http qingqiuleixing(get、post、put、delete deng),bingzaishidangdeshihoudiaoyong doget、dopost、doput,dodelete dengfangfa。

  doGet()方法:

  get qingqiulaiziyuyige url dezhengchangqingqiu,huozhelaiziyuyigeweizhiding method de html biaodan,tayou doget() fangfachuli。

  doPost()方法:

  post qingqiulaiziyuyigetebiezhidingle method wei post de html biaodan,tayou dopost() fangfachuli。

  destroy()方法:

  destroy() fangfazhihuibeidiaoyongyici,zai servlet shengmingzhouqijieshushibeidiaoyong。destroy() fangfakeyirangninde servlet guanbishujukulianjie、tingzhihoutaixiancheng、ba cookie liebiaohuodianjijishuqixierudaocipan,bingzhixingqitaleisideqinglihuodong。

607的彩的正确网址  zaidiaoyong destroy() fangfazhihou,servlet duixiangbeibiaojiweilajihuishou。

  jutidewohualegetu,chabuduojiushizheigeyangzile~

607的彩的正确网址  yinweitashidanliduoxianchengchuliqingqiudefangshi,suoyidangtadiercichuliqingqiudeshihou,yinweilimianyijingcunzaiservletshili,jiuzhijiediaoyongservice();fangfachuliqingqiujike!

  2、Servlet如何处理用户的请求?

607的彩的正确网址  lejieleservletdeshengmingzhouqihou,yanjiuyixiatajutishiruhechuliqingqiudeni?

  qianmianyijingyousuojutou:danliduoxiancheng。

  neimejutishizenyangde?

  diyigedaodafuwuqide http qingqiubeiweipaidao servlet rongqi。

  servlet rongqizaidiaoyong service() fangfazhiqianjiazai servlet。

607的彩的正确网址  ranhou servlet rongqichuliyouduogexianchengchanshengdeduogeqingqiu,meigexianchengzhixingyigedanyide servlet shilide service() fangfa。

  3、get请求和post的请求的区别?

  get qingqiulaiziyuyige url dezhengchangqingqiu,huozhelaiziyuyigeweizhiding method de html biaodan,tayou doget() fangfachu;post qingqiulaiziyuyigetebiezhidingle method wei post de html biaodan,tayou dopost() fangfachuli。

  getqingqiuyibanyongquqingqiuhuoqushuju; postyibanzuoweifasongshujudaohoutaishishiyong。

607的彩的正确网址  getqingqiushuaxinliulanqihuohuituishimeiyouyingxiang ; posthuituishihuizhongxintijiaoshujuqingqiu。

607的彩的正确网址  getqingqiuyekechuancandaohoutai,danshiqicanshuzailiulanqidedizhilandeurlzhongkejian,suoyiyinsixinganquanxingjiaocha,qiecanshuzhangduyeshiyouxianzhide ; postqingqiuchuandicanshufangzairequest bodyzhong,buhuizaiurlzhongxianshi,bigetyaoanquan,qiecanshuzhangduwuxianzhi。

baoqian!pinglunyiguanbi.

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