Spring Cloud微服务安全实战_4-5_搭建OAuth2资源服务器

上一篇搭建了一个OAuth2认证服务器，可以生成token，这篇来改造下之前的订单微服务，使其能够认这个token令牌。

本篇针对订单服务要做三件事：

1，要让他知道自己是资源服务器，他知道这件事后，才会在前边加一个过滤器去验令牌（配置@EnableResourceServer 配置类）

2，要让他知道自己是什么资源服务器（配置资源服务器ID）

3，配置去哪里验令牌，怎么验令牌，要带什么信息去验（配置@EnableWebSecurity 配置TokenServices，配置AuthenticationManager）

搭建资源服务器

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++++++++++++++++++资源服务器现有的各个类++++++++++++++++++++++++++++

pom.xml：

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.nb.security</groupId>
    <artifactId>nb-order-api</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <properties>
        <java.version>1.8</java.version>
    </properties>


    <dependencyManagement>
        <dependencies>
            <dependency>
                <!-- Import dependency management from Spring Boot -->
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.1.6.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--spring cloud-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.SR2</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

        </dependencies>

    </dependencyManagement>

    <dependencies>

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

        <!--OAuth2-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>

        <!--lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>

    </dependencies>

    <build>
        <plugins>

            <!--指定JDK编译版本 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- 打包跳过测试 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <skipTests>true</skipTests>
                </configuration>
            </plugin>


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

</project>

View Code

application.yml：

server:
  port: 9060

View Code

OrderInfo.java ：

package com.nb.security.order;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class OrderInfo {

    private Long productId;

}

View Code

OrderController：

package com.nb.security.order;

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

@Slf4j
@RestController
@RequestMapping("/orders")
public class OrderController {

    private RestTemplate restTemplate = new RestTemplate();



    @PostMapping
    public OrderInfo create(@RequestBody OrderInfo info){
        //查询价格
//        PriceInfo price = restTemplate.getForObject("http://localhost:9080/prices/"+info.getProductId(),PriceInfo.class);
//        log.info("price is "+price.getPrice());
        return info;
    }


    @GetMapping
    public OrderInfo getInfo(@PathVariable Long id){
        log.info("getInfo: id is "+id);
        return new OrderInfo(id);
    }

}

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启动类：

package com.nb.security;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class NbOrderApiApplication {

    public static void main(String[] args) {
        SpringApplication.run(NbOrderApiApplication.class, args);
    }

}

View Code

PriceInfo.java （暂时先不用）：

package com.nb.security.order;

import lombok.Data;

import java.math.BigDecimal;

@Data
public class PriceInfo {

    private Long id;

    private BigDecimal price;
}

View Code

++++++++++++++++++资源服务器现有的各个类结束++++++++++++++++++++++++++++

1，在资源服务器pom哩加上 oauth2的依赖：

        <!--OAuth2-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>

2，新建资源服务器配置类，继承 ResourceServerConfigurerAdapter

package com.nb.security.resource.server;

import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer;

/**
 * 资源服务器
 * 配置了@EnableResourceServer ，所有发往nb-order-api的请求，都会去请求头里找token，找不到不让你过
 */
@Configuration
@EnableResourceServer//告诉nb-order-api,你就是资源服务器
public class OAuth2ResourceServerConfig extends ResourceServerConfigurerAdapter {

    @Override
    public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
        //配置资源服务器的id，“现在我就是资源服务器order-server！！！”
        resources.resourceId("order-server");
    }

    @Override
    public void configure(HttpSecurity http) throws Exception {
        /**
         * 进入nb-order-api的所有请求，哪些要拦截，哪些要放过，在这里配置
         */
        http.authorizeRequests()
                .antMatchers("/hello")
                .permitAll() //放过/haha不拦截
                .anyRequest().authenticated();//其余所有请求都拦截
    }
}

ResourceServerConfigurerAdapter 有两个方法：

开篇说的1、2、3中的1和2已经完成了，下面做第3件事，怎么验令牌：

新建配置类：

package com.nb.security.resource.server;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationManager;
import org.springframework.security.oauth2.provider.token.RemoteTokenServices;
import org.springframework.security.oauth2.provider.token.ResourceServerTokenServices;

/**
 * 怎么验发往本服务的请求头的令牌
 * 1，自定义tokenServices ,说明去哪里去验token
 * 2，重写authenticationManagerBean()方法，将AuthenticationManager暴露为一个Bean
 *    要认证跟用户相关的信息，一般用 AuthenticationManager
 *
 * 这样配置了后,所有发往nb-order-api的请求，
 * 需要验token的时候就会发请求去http://localhost:9090/oauth/check_token验token，获取到token对应的用户信息
 */
@Configuration
@EnableWebSecurity
public class OAuth2WebSecurityConfig extends WebSecurityConfigurerAdapter{


    /**
     * 通过这个Bean，去远程调用认证服务器，验token
     * @return
     */
    @Bean
    public ResourceServerTokenServices tokenServices(){
        RemoteTokenServices tokenServices = new RemoteTokenServices();
        tokenServices.setClientId("orderService");//在认证服务器配置的，订单服务的clientId
        tokenServices.setClientSecret("123456");//在认证服务器配置的，订单服务的ClientSecret
        tokenServices.setCheckTokenEndpointUrl("http://localhost:9090/oauth/check_token");
        return tokenServices;
    }


    /**
     * 要认证跟用户相关的信息，一般用 AuthenticationManager
     * 覆盖这个方法，可以将AuthenticationManager暴露为一个Bean
     *
     * @return
     * @throws Exception
     */
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        OAuth2AuthenticationManager authenticationManager = new OAuth2AuthenticationManager();
        authenticationManager.setTokenServices(tokenServices());//设置为自定义的TokenServices，去校验令牌
        return authenticationManager;
    }
}