authenticationProcessionFilter(AuthenticationProcessingFilter)---->
authenticationManager(ProviderManger)---->
daoAuthenticationProvider(DaoAuthenticationProvider)---->
userDetailsService(UserDetailsService)
鍦ㄦ渶搴曞眰鐨刄serDetailsService鎺ュ彛涓紝鎻愪緵浜唋oadUserByUsername榪欎釜鏂規(guī)硶錛屾垜浠彧闇瑕佸疄鐜拌繖涓帴鍙ｏ紝騫跺疄鐜版帴鍙ｄ腑鐨勬柟娉曪紝灝卞彲浠ヤ嬌鐢ㄨ嚜宸辯殑楠岃瘉鍔熻兘浜嗐傝鏂規(guī)硶浼犲叆鐨勫弬鏁版槸String username錛岃繑鍥炵被鍨嬫槸UserDetails錛屽緢鏄劇劧錛屾垜浠渶瑕侀氳繃鑷繁鐨刣ao錛屾牴鎹畊sername鏉ュ緱鍒拌嚜瀹氫箟鐨剈ser綾誨瀷錛岀劧鍚庢妸瀹冨皝瑁呭埌UserDetails閲岄潰鍘伙紝鐒跺悗榪斿洖銆?/p>
鍙﹀錛屽湪UserDetail榪欎釜綾婚噷闈紝鏈変竴涓狦rantedAuthority[] 綾誨瀷鐨勫睘鎬э紝鐢ㄦ潵瀛樻斁璇ョ敤鎴鋒墍瀵瑰簲鐨勬潈闄愶紝鎴戜滑鍦╨oadUserByUsername榪欎釜鏂規(guī)硶閲岄潰錛屽悓鏍蜂篃闇瑕佸緱鍒拌鐢ㄦ埛鐨勬潈闄愶紝騫舵妸瀹冭祴緇欒繑鍥炵殑UserDetails銆?/p>
鍋囧鐢ㄦ埛瀵瑰簲鐨勭被鍚嶄負(fù)UserInfo錛屾潈闄愬搴旂殑綾誨悕涓篟oles錛屽湪UserInfo涓湁涓涓彉閲?/p>
private Set roles;
鍦ㄥ緱鍒版潈闄愪俊鎭殑鏃跺欙紝鍥犱負(fù)瀹冩槸闆嗗悎錛屾墍浠ュ彲浠ヤ嬌鐢ㄥ歡榪熷姞杞藉姛鑳斤紝璇誨彇鐨勬椂鍊欏厛浠庣紦瀛樹腑鍙栨暟鎹紝濡傛灉鍙栦笉鍒扮殑璇濓紝灝辮皟鐢║serInfo.getRoles()鏂規(guī)硶錛岃繖涓椂鍊欏氨浼?xì)鍒版暟鎹簱涓彇鏁版嵁浜嗗Q屽彇鍒頒互鍚庯紝鍐嶆妸鏁版嵁鏀懼埌緙撳瓨涓?/p>
聽 private final static ContextHolder instance = new ContextHolder();
聽 private ApplicationContext ac;
聽 private ContextHolder() {
聽 }
聽 public static ContextHolder getInstance() {
聽聽聽 return instance;
聽 }
聽 public synchronized void setApplicationContext(ApplicationContext ac) {
聽聽聽 this.ac = ac;
聽 }
聽 public ApplicationContext getApplicationContext() {
聽聽聽 return ac;
聽 } 聽
}
鐒跺悗鍐欎竴涓猻ervlet錛岀戶鎵胯嚜org.springframework.web.context.ContextLoaderServlet錛屽茍閰嶇疆web.xml錛岃瀹冨湪tomcat鍚姩鏃惰嚜鍔ㄨ繍琛屻傜劧鍚庡湪瀹冪殑init鏂規(guī)硶涓紝鍔犲叆濡備笅鐨勪唬鐮侊細(xì)
WebApplicationContext context = WebApplicationContextUtils.
聽聽聽 getWebApplicationContext(this.getServletContext());
ContextHolder.getInstance().setApplicationContext(context);
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