摘要:
//Itr是 ArrayList中的一个内部类 private class Itr implements Iterator<E> { int cursor; // index of next element to return 光标,表示是迭代器里面的那个指针,默认指向0索引的位置 int last 阅读全文
摘要:
@EnableWebSecurity public class SecurityConfig { @Autowired private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter; @Bean public PasswordEn 阅读全文
摘要:
今天在写SQL语句时发现一个问题 select count(1) as count from smbms_bill b left join smbms_provider p on b.providerId = p.id and b.providerId = 2 and b.isPayment = 1 阅读全文