一、報錯： java.lang.IllegalStateException: Can‘t configure antMatchers after anyRequest

　　啟動springboot專案，直接編譯報錯，內容：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.Filter]: Factory method 'springSecurityFilterChain' threw exception; nested exception is java.lang.NullPointerException

　　下面還有報錯：

nested exception is java.lang.IllegalStateException: Can‘t configure antMatchers after anyRequest

　　解決方案：

　　開始配了半天，一直報這個：Can't configure antMatchers after anyRequest...的錯誤，上StackOverflow看了以下別人的，照著程式碼調整了下還是沒有解決。然後想難道是super.configure(http)裡搞的鬼，點進去看了下，結果還真是，就趕緊去掉了。

　　子類重寫方法時, 如果用不到父類的方法, 一定要去掉自動生成的super。

二、認證密碼沒加密，報錯：java.lang.IllegalArgumentException: There is no PasswordEncoder mapped for the id "null"

　　認證密碼需要加密才行，如果沒有使用下面的密碼加密，就會報上面錯誤

// 認證的密碼得加密才行
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
　　auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder())
　　　　.withUser(
 
"gwf").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1");
}