Spring Security web权限方案
设置登录系统的账号、密码
配置application.properties
spring.security.user.name=root
spring.security.user.password=123456
通过配置类
import org.springframework.context.annotation.Bean;
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;
import org.springframework.stereotype.Component;
@Component
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Bean
PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
String password = passwordEncoder.encode("123");
auth.inMemoryAuthentication().withUser("lucy").password(password).roles("admin");
}
}
查询数据库中的用户
-
建立pojo层，mapper层
-
新建一个MyUserDetailsService类来实现UserDetailsService接口，实现其中的loadUserByUsername方法
package com.example.sprintsecurity.service;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.example.sprintsecurity.mapper.UserMapper;
import com.example.sprintsecurity.pojo.Admin;
import org.springframework.beans.factory.annotation.Autowired;
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 {
@Autowired
private UserMapper userMapper;
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
QueryWrapper<Admin> wrapper = new QueryWrapper<>();
wrapper.eq("username", username);
Admin admin = userMapper.selectOne(wrapper);
if (admin == null) {
throw new UsernameNotFoundException("用户名不存在");
}
List<GrantedAuthority> auths = AuthorityUtils.commaSeparatedStringToAuthorityList("role");
return new User(admin.getUsername(), new BCryptPasswordEncoder().encode(admin.getPassword()), auths);
}
}
- 自定义config类
package com.example.sprintsecurity.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.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 SecurityConfig extends WebSecurityConfigurerAdapter {
@Autowired
private UserDetailsService userDetailsService;
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(getPasswordEncoder());
}
@Bean
PasswordEncoder getPasswordEncoder() {
return new BCryptPasswordEncoder();
}
}
使用自己的login页面
在SecurityConfig中再次重写一个方法configure
