微服务非登录服务的 spring session + spring security 实践

配置

还没用spring session的时候，一直不明白如何让后端把session主动存到持久层(比如redis)中，这几天看了看spring session的文档和博客，算是明白了，简单来说就是下面一段话：

Spring Session creates a Spring bean with the name of springSessionRepositoryFilter that implements Filter. The filter is in charge of replacing the HttpSession implementation to be backed by Spring Session.

不过spring.io官网的配置tutorial属实不行，配出来根本无法向redis里面插入数据，且给的demo也没法在本机运行。
现在给出我的配置方案

依赖

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

application.properties

# 必须要加，否则你加依赖不加这个连启动都报错
spring.session.store-type=redis
# 默认为localhost:6379，可以通过配置更改
spring.redis.host=localhost
# Redis server password
# 如果密码为空，就不要写了，否则也报错
# spring.redis.password=
# Redis server port.
spring.redis.port=6379
# 指定储存的位置
spring.session.redis.namespace=redis:session
spring.session.redis.flush-mode=immediate
spring.session.timeout=5m
# 超时断连，不指定可能会报unable to connect to redis
spring.redis.timeout=3000

查看redis

发送任意一个请求，然后到redis上看看 keys *,就可以看到存入的session

配置spring security

作为非登录端的security配置不需要很复杂，只需要一个简单的securityConfig类就好

引入依赖

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

SecurityConfig类

package com.ilife.weiboservice.config;

import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
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;


@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
    
    

    @Override
    protected void configure(HttpSecurity http) throws Exception {
    
    
        http.authorizeRequests()
                .anyRequest().authenticated()
                .and()
                .csrf().disable();
    }
}

controller

对于要保护的接口，需要加上@PreAuthorize注解如下

    @ApiOperation(notes = "Get all Weibos from database of one user specified by userID", value = "get one user's Weibos", httpMethod = "GET")
    @RequestMapping(path = "/weibo/getWeibos")
    @PreAuthorize("hasRole('ROLE_USER')")
    public List<Weibo> getWeibos(@ApiParam(name = "userId", value = "The user ID of a WeiBo user,should be a Long Integer") @RequestParam("userId") Long uid) {
    
    
        System.out.println("********** getWeibos **********");
        return weiboService.findAllByUid(uid);
    }