spring security 简单应用

Pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>

	<groupId>com.mb</groupId>
	<artifactId>tuia</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>tuia</name>
	<description>tuia project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.4.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
		<java.version>1.8</java.version>
	</properties>

	<dependencies>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-thymeleaf</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-security</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-jpa</artifactId>
		</dependency>


		<dependency>
			<groupId>org.thymeleaf.extras</groupId>
			<artifactId>thymeleaf-extras-springsecurity4</artifactId>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.40</version>
		</dependency>

		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
			<version>3.4</version>
		</dependency>

		<dependency>
			<groupId>alipay</groupId>
			<artifactId>taobao-sdk-java-auto</artifactId>
			<version>1.0</version>
		</dependency>

	</dependencies>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>


</project>

　　

package com.mb.tuia.Config;

import com.mb.tuia.Service.CustomUserService;
import com.mb.tuia.utils.MyPasswordEncoder;
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.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;

@EnableWebSecurity 
public class SecurityConfig extends WebSecurityConfigurerAdapter { 

    @Bean
    UserDetailsService customUserService() {
        return new CustomUserService();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {


        http
                .authorizeRequests() // 3
                .antMatchers("/index", "/css/**").permitAll() //4

                .antMatchers("/admin/**").hasAnyRole("ROLE_ADMIN", "ROLE_USER")
                .antMatchers("/user/**").hasAnyRole("ADMIN","USER")
                .antMatchers("/member/**").hasAnyRole("ADMIN")



                .and()                // 6
                .formLogin()
                .loginPage("/login").failureUrl("/login-error")
                //以下为iframe
                .and()
                .csrf().disable()
                .headers().frameOptions().sameOrigin();


    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception { // 7

        auth.userDetailsService(customUserService()).passwordEncoder(new MyPasswordEncoder());
    }
}

　　

密码采用Md5

package com.mb.tuia.utils;

import org.springframework.security.crypto.password.PasswordEncoder;

public class MyPasswordEncoder implements PasswordEncoder {

    @Override
    public String encode(CharSequence charSequence) {
       // return charSequence.toString();
        return MD5Util.encrypt((String)charSequence);
    }

    @Override
    public boolean matches(CharSequence charSequence, String s) {
        return s.equals(MD5Util.encrypt((String)charSequence));
      //  return s.equals(charSequence.toString());
    }

}

　　

在程序中获得当前登陆用户对应的对象。
UserDetails userDetails = (UserDetails) SecurityContextHolder.getContext()
                .getAuthentication()
                .getPrincipal();