19、springcloud分布式Session之Spring Session

<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>spring-cloud</groupId>
<artifactId>sc-redis-session</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>sc-redis-session</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.49</version>
</dependency>
</dependencies>
</project>

package com.redis.session;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;
@SpringBootApplication
@EnableRedisHttpSession
public class RedisSessionApplication {
public static void main(String[] args) {
SpringApplication.run(RedisSessionApplication.class, args);
}
}

server:
  port: 7200
spring:
  session:
    store-type: redis
  application:
    name: sc-redis-session
  redis:
    host: 127.0.0.1
    password:
    port: 6379
    timeout: 10000 # 连接超时时间（毫秒）
    database: 0 # Redis默认情况下有16个分片，这里配置具体使用的分片，默认是0
    lettuce:
      pool:
        max-active: 8 # 连接池最大连接数（使用负值表示没有限制） 默认 8
        max-wait: -1 # 连接池最大阻塞等待时间（使用负值表示没有限制） 默认 -1
        max-idle: 8 # 连接池中的最大空闲连接 默认 8
        min-idle: 0 # 连接池中的最小空闲连接 默认 0

package com.redis.session.controller;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import com.alibaba.fastjson.JSON;
import com.redis.session.model.User;
@RestController
public class UserController {
private static final Logger logger = LoggerFactory.getLogger(UserController.class);
/**
 * 把用户放入session
 *
 * @param request
 * @return
 */
@RequestMapping("/user/login")
@ResponseBody
public Map<String, Object> login(HttpServletRequest request) {
// 取出session中的userName
Object loginUser = request.getSession().getAttribute("loginUser");
if (loginUser == null) {
logger.info("不存在session，设置user");
User u = new User();
u.setAge(23);
u.setId(1L);
u.setPosition("总裁");
u.setUserName("huangjinjin");
request.getSession().setAttribute("loginUser", u);
} else {
logger.info("存在session，user=" +  JSON.toJSONString(loginUser));
}
Cookie[] cookies = request.getCookies();
if (cookies != null && cookies.length > 0) {
for (Cookie cookie : cookies) {
logger.info(cookie.getName() + " : " + cookie.getValue());
}
}
Map<String, Object> resp = new HashMap<String, Object>();
resp.put("code", "000000");
resp.put("msg", "交易成功");
return resp;
}
/**
 * 获取session的用户
 *
 * @param request
 * @return
 */
@RequestMapping("/user/getUser")
@ResponseBody
public Map<String, Object> getUser(HttpServletRequest request) {
Map<String, Object> resp = new HashMap<String, Object>();
resp.put("code", "000000");
resp.put("msg", "交易成功");
resp.put("body", request.getSession().getAttribute("loginUser"));
Cookie[] cookies = request.getCookies();
if (cookies != null && cookies.length > 0) {
for (Cookie cookie : cookies) {
logger.info(cookie.getName() + " : " + cookie.getValue());
}
}
return resp;
}
}