前言

此篇文章是springboot 集成oauth2 用户密码授权基础篇，大部分web还是使用的用户密码登录页面，尤其是前后端分离的可以参考下

效果如下：

1.直接访问api接口

curl --location --request GET 'http://127.0.0.1:8080/whoami?name=mayanze'

2.获取token(有点小抽象，官方文档例子，不懂看下面)

curl --location --request POST 'http://first-client:noonewilleverguess@localhost:8080/oauth/token?scope=resource:read&grant_type=password&username=myz&password=myz'

不好理解看这里（与上面意思一致）

curl --location --request POST 'http://localhost:8080/oauth/token?scope=resource:read&grant_type=password&username=myz&password=myz' \
--header 'Authorization: Basic Zmlyc3QtY2xpZW50Om5vb25ld2lsbGV2ZXJndWVzcw=='

3.拿token访问api接口

curl --location --request GET 'http://127.0.0.1:8080/whoami?name=mayanze' \
--header 'Authorization: Bearer dfVidwI31Nyzy-3dOXH8M82Xr6k'

代码实现

可以参考完整代码：gitee.com/mayanze123/…

1.在上一基础篇上加 WebSecurityConfig

package com.example.demo;

import org.springframework.context.annotation.Bean;
import org.springframework.security.authentication.AuthenticationManager;
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.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

import java.util.ArrayList;

@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public AuthenticationManager authenticationManager() throws Exception {
        return super.authenticationManager();
    }


    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
                .withUser("myz")
                .password(passwordEncoder().encode("myz"))
                .authorities(new ArrayList<>(0));
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        //所有请求必须认证
        http.authorizeRequests().anyRequest().authenticated();
    }
}

2.在上一基础篇上加 AuthorizationServerConfig

package com.example.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;

@Configuration
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private AuthenticationManager authenticationManager;//密码模式需要注入认证管理器

    @Autowired
    public PasswordEncoder passwordEncoder;

    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients
                .inMemory()
                .withClient("first-client")
                .secret(passwordEncoder.encode("noonewilleverguess"))
                .scopes("resource:read")
                .authorizedGrantTypes("password","authorization_code");
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) {
        endpoints.authenticationManager(authenticationManager);
    }
}