設置登陸的用戶名和密碼

第一種方式：通過配置文件

spring.security.user.name=atguigu spring.security.user.password=atguigu

第二種方式：通過配置類

package com.atguigu.securitydemo1.config;import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; import org.springframework.security.crypto.password.PasswordEncoder;@Configuration public class SecurityConfig extends WebSecurityConfigurerAdapter {@Overrideprotected void configure(AuthenticationManagerBuilder auth) throws Exception {BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();String password = passwordEncoder.encode("123");auth.inMemoryAuthentication().withUser("lucy").password(password).roles("admin");}//密碼要加密，可是要用到PasswordEncoder這個接口， //所以我們要給這個接口創(chuàng)建一個對象，因為它做加密的時候要找這個對象 //找不到就要報錯！！！@BeanPasswordEncoder password(){return new BCryptPasswordEncoder();} }

第三種方式：自定義編寫實現(xiàn)類

第一步 創(chuàng)建配置類，設置使用哪一個userDetailsService實現(xiàn)類

package com.atguigu.securitydemo1.config;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder; import org.springframework.security.config.annotation.web.builders.WebSecurity; import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter; import org.springframework.security.core.userdetails.UserDetailsService; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; import org.springframework.security.crypto.password.PasswordEncoder;@Configuration public class SecurityConfigTest extends WebSecurityConfigurerAdapter {@Autowiredprivate UserDetailsService userDetailsService;@Overrideprotected void configure(AuthenticationManagerBuilder auth) throws Exception {auth.userDetailsService(userDetailsService).passwordEncoder(password());}@BeanPasswordEncoder password(){return new BCryptPasswordEncoder();} }

第二步 編寫實現(xiàn)類，返回User對象，User對象有用戶名密碼和操作權限

package com.atguigu.securitydemo1.service;import org.springframework.security.core.GrantedAuthority; import org.springframework.security.core.authority.AuthorityUtils; import org.springframework.security.core.userdetails.User; import org.springframework.security.core.userdetails.UserDetails; import org.springframework.security.core.userdetails.UserDetailsService; import org.springframework.security.core.userdetails.UsernameNotFoundException; import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder; import org.springframework.stereotype.Service;import java.util.List;@Service("userDetailsService") public class MyUserDetailsService implements UserDetailsService {@Overridepublic UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {List<GrantedAuthority> auths = AuthorityUtils.commaSeparatedStringToAuthorityList("rold");return new User("marry",new BCryptPasswordEncoder().encode("123"),auths);} }

總結

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