新建CustomUserDetailsService類

package com.mengxuegu.security;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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.password.PasswordEncoder;
import org.springframework.stereotype.Component;

@Component("customUserDetailsService")
public class CustomUserDetailsService implements UserDetailsService {

    Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired
    PasswordEncoder passwordEncoder;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        logger.info("請求認證的使用者名稱："+username);
        //1.通過請求的使用者名稱去資料庫中查詢使用者資訊
        if(!"meng".equalsIgnoreCase(username)){
            throw new UsernameNotFoundException("使用者名稱或密碼錯誤");
        }
        String password = passwordEncoder.encode("1234");

        //2.查詢該使用者有哪些許可權

        //3.封裝使用者資訊和許可權資訊
        return new User(username,password, AuthorityUtils.commaSeparatedStringToAuthorityList("ADMIN"));
    }
}
 

配置SpringSecurityConfig

package com.mengxuegu.security.config;

import com.mengxuegu.security.properties.AuthenticationProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
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;


/**
 * alt+/ 導包
 * ctrl+o 覆蓋
 * @Auther: 夢學谷 www.mengxuegu.com
 */
@EnableWebSecurity // 開啟springsecurity過濾鏈 filter
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {


    Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired
    private AuthenticationProperties authenticationProperties;

    @Bean
    public PasswordEncoder passwordEncoder(){
        // 明文+隨機鹽值-》加密儲存
        return new BCryptPasswordEncoder();
    }

    @Autowired
    UserDetailsService customUserDetailsService;

    /**
     * 認證管理器：
     * 1. 認證資訊（使用者名稱，密碼）
     * @param auth
     * @throws Exception
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
//        String password = passwordEncoder().encode("123456");
//        logger.info("加密之後儲存的密碼："+password);
//        auth.inMemoryAuthentication().withUser("root").password(password).authorities("ADMIN");
        auth.userDetailsService(customUserDetailsService);
    }

    /**
     * 資源許可權配置：
     * 1. 被攔截的資源
     * @param http
     * @throws Exception
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        System.out.println("使用者認證");
//       http.httpBasic() // 採用 httpBasic認證方式
        http.formLogin() // 表單登入方式
                .loginPage(authenticationProperties.getLoginPage())   //配置登入頁面
                .loginProcessingUrl(authenticationProperties.getLoginProcessingUrl())  //登入表單提交處理url，預設是/login
                .usernameParameter(authenticationProperties.getUsernameParameter())
                .passwordParameter(authenticationProperties.getPasswordParameter())
            .and()
            .authorizeRequests() // 認證請求
            .antMatchers(authenticationProperties.getLoginPage()).permitAll()
            .anyRequest().authenticated() //所有訪問該應用的http請求都要通過身份認證才可以訪問
        ; // 注意不要少了分號
    }

    /**
     * 一般針對靜態資源放行
     * @param web
     */
    @Override
    public void configure(WebSecurity web) {
        web.ignoring().antMatchers(authenticationProperties.getStaticPaths());
    }
}