配置中有一点变化spring-boot1.x

security.basic.enabled=true
security.user.name=admin
security.user.password=admin

而在spring-boot2.x改为

spring:
  security:
    user:
      name: test # 定义用户名
      password: 123456 # 定义密码

eureka.client.serviceUrl.defaultZone改为http://${spring.security.user.name}:${spring.security.user.password}@${eureka.instance.hostname}:${server.port}/eureka/

之后新建一个配置类

import org.springframework.context.annotation.Configuration;
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.config.http.SessionCreationPolicy;

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.NEVER);
        //关闭csrf
        http.csrf().disable();
        //注意：为了可以使用 http://${user}:${password}@${host}:${port}/eureka/ 这种方式登录,所以必须是httpBasic,如果是form方式,不能使用url格式登录
        //开启认证
        http.authorizeRequests().anyRequest().authenticated().and().httpBasic();
    }

}