Spring Session MongoDB管理会话
目录
1.Spring Session MongoDB
1.1 什么是 Spring Session MongoDB
Spring Session MongoDB 是 Spring Session 的二级项目。其功能与 Spring Session 是相同的。Spring Session MongoDB 提供了一个 API 和实现,用于通过利用 Spring Data MongoDB 来管理存储在 MongoDB 中的用户会话信息。
1.2.他与 Spring Session 的区别
Spring Session 与 Spring Session MongoDB 的作用是相同的。都是来解决 Session 共享问题。不同的是 Spring Session 默认的是依赖于 Redis 作为数据缓存平台,而 Spring Session MongoDB 是依赖于 MongoDB 来作为数据缓存平台的。
1.3 安装 MongoDB
- 1.下载 MongoDB
mongodb-linux-x86_64-4.0.9.tgz - 2.解压 tgz 文件
[root@localhost temp]# tar -zxf mongodb-linux-x86_64-4.0.9.tgz - 3.创建数据库目录
[root@localhost etc]# mkdir -p data/db - 4.创建日志文件
[root@localhost etc]# touch mongodb.log - 5.创建配置文件
[root@localhost etc]# vim mongodb.conf - 6.启动 MongoDB
[root@localhost bin]# ./mongod --cofnig /usr/local/mongodb/etc/mongodb.conf - 7.创建 dqcgm库
> use dqcgm
2.搭建案例环境
2.1 技术版本
- JDK:1.8
- Spring Boot:2.1.6RELEASE
- Spring Session MongoDB:Bean-SR3
2.2 创建项目
2.3 修改 POM 文件添加依赖
<?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
http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dqcgm</groupId>
<artifactId>session_mongodb</artifactId>
<packaging>pom</packaging>
<version>1.0-SNAPSHOT</version>
<modules>
<module>session_mongo1</module>
<module>session_mongo2</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-bom</artifactId>
<version>Bean-SR3</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-mongodb</artifactId>
</dependency>
</dependencies>
</project>
2.4 添加配置文件
- Session_monog1
#配置服务的端口
server:
port: 8080
#配置 MongoDB 的链接信息
spring:
data:
mongodb:
host: 192.168.70.156
port: 27017
database: dqcgm
session:
store-type: mongodb
- Session_mongo2
#配置服务的端口
server:
port: 8081
#配置 MongoDB 的链接信息
spring:
data:
mongodb:
host: 192.168.70.156
port: 27017
database: dqcgm
session:
store-type: mongodb
2.5 创建启动类
- Session_mongo1
@SpringBootApplication
@EnableMongoHttpSession
public class Mongo1Application {
public static void main(String[] args){
SpringApplication.run(Mongo1Application.class,args);
}
}
- Session_mongo2
@SpringBootApplication
@EnableMongoHttpSession
public class Mongo2Application {
public static void main(String[] args){
SpringApplication.run(Mongo2Application.class,args);
}
}
3.编写测试代码
3.1 Session_mongo1
@RestController
@RequestMapping("/service1")
public class WebController {
//将数据存放到 HttpSession 中
@RequestMapping("/setMsg")
public String getMsg(HttpSession session,String msg){
session.setAttribute("msg",msg);
return "ok";
}
}
3.2 Session_mongo2
@RestController
@RequestMapping("/service2")
public class WebController {
//获取 HttpSession 中的数据
@RequestMapping("/getMsg")
public String getMsg(HttpSession session){
String msg = (String) session.getAttribute("msg");
return msg;
}
}
3.3 修改 MongoDB 的配置文件添加 bind_ip
dbpath=/usr/local/mongodb/data/db
logpath=/usr/local/mongodb/log/mongodb.log
port=27017
fork=true
bind_ip=0.0.0.0
3.4 测试
4.共享自定义对象
4.1 创建 Users 类
public class Users implements Serializable {
private String username;
private String userpwd;
public String getUsername() {
return username;
}
public String getUserpwd() {
return userpwd;
}
public void setUsername(String username) {
this.username = username;
}
public void setUserpwd(String userpwd) {
this.userpwd = userpwd;
}
}
4.2 session_mongo1
@RestController
@RequestMapping("/service1")
public class WebController {
//将数据存放到 HttpSession 中
@RequestMapping("/setMsg")
public String getMsg(HttpSession session,String msg){
session.setAttribute("msg",msg);
return "ok";
}
//获取数据封装 Users
@RequestMapping("/setUsers")
public String setUsers(HttpSession session, Users users){
session.setAttribute("users",users);
return "ok";
}
}
4.3 session_mongo2
@RestController
@RequestMapping("/service2")
public class WebController {
//获取 HttpSession 中的数据
@RequestMapping("/getMsg")
public String getMsg(HttpSession session){
String msg = (String) session.getAttribute("msg");
return msg;
}
//从 HttpSession 中获取 Users
@RequestMapping("/getUsers")
public Users getUsers(HttpSession session){
Users users = (Users) session.getAttribute("users");
return users;
}
}
4.4 测试
5.Spring Session MongoDB 的存结构
{ "_id" : "fe3f6cea-c3e2-426b-a47a-cf21c5b848cb",
"created" : ISODate("2019-07-12T12:46:48.916Z"),
"accessed" : ISODate("2019-07-12T12:46:48.919Z"),
"interval" : "PT30M",
"principal" : null,
"expireAt" : ISODate("2019-07-12T13:16:48.919Z"),
"attr" : BinData(0,"rO0ABXNyABFqYXZhLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9h ZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAx3CAAAABAAAAABdAAFdXNlcnN zcgAcY29tLmJqc3h0Lm1vbmdvLmRvbWFpbi5Vc2Vyc5EM02IkljhzAgACTAAIdXNlcm5hbWV0ABJMamF2YS9sYW5nL1N0cmluZztMAAd1c2VycHdkcQB+AAR4cHQABWFkbWludAAF YWRtaW54") }
6.设置 Session 失效时间
@SpringBootApplication
@EnableMongoHttpSession(maxInactiveIntervalInSeconds=10)
public class Mongo1Application {
public static void main(String[] args){
SpringApplication.run(Mongo1Application.class,args);
}
}
7.@EnableMongoHttpSession 注解讲解
- maxInactiveIntervalInSeconds:设置 Session 失效时间
- collectionName:设置 MongoDB 的 Collections 的名称
8.更换 Spring Session MongoDB 的序列化器
- Spring Session MongoDB 默认使用的是 JDK 序列化器
8.1 创建配置类添加 Jackson 序列化器
//更换 Spring Session MongoDB 的序列化器
@Configuration
public class SessionMongoConfig {
@Bean
JacksonMongoSessionConverter mongoSessionConverter() {
return new JacksonMongoSessionConverter();
}
}
8.2 修改实体类,添加@JsonAutoDetect 注解
@JsonAutoDetect(fieldVisibility=JsonAutoDetect.Visibility.ANY)
public class Users implements Serializable {
private String username;
private String userpwd;
public String getUsername() {
return username;
}
public String getUserpwd() {
return userpwd;
}
public void setUsername(String username) {
this.username = username;
}
public void setUserpwd(String userpwd) {
this.userpwd = userpwd;
}
}