SpringBoot 如何實現Session共享
阿新 • • 發佈:2020-09-04
HttpSession,是通過Servlet容器建立並進行管理的,建立成功以後將會儲存在記憶體中,這裡將會使用Redis解決session共享的問題。
建立專案
新增pom
新增相關的maven
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.3.1.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>demo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-redis --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> <version>2.3.1.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/io.lettuce/lettuce-core --> <dependency> <groupId>io.lettuce</groupId> <artifactId>lettuce-core</artifactId> <version>6.0.0.M1</version> </dependency> <!-- https://mvnrepository.com/artifact/redis.clients/jedis --> <dependency> <groupId>redis.clients</groupId> <artifactId>jedis</artifactId> <version>3.3.0</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.session/spring-session-data-redis --> <dependency> <groupId>org.springframework.session</groupId> <artifactId>spring-session-data-redis</artifactId> <version>2.3.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <exclusions> <exclusion> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> </exclusion> </exclusions> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
配置redis連線
配置redis連線
spring: redis: database: 0 host: 106.53.115.12 port: 6379 password: 12345678 jedis: pool: max-active: 8 max-idle: 8 max-wait: -1ms min-idle: 0
建立Controller用來執行測試操作
package com.example.demo; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PostMapping; import org.springframework.web.bind.annotation.RestController; import javax.servlet.http.HttpSession; @RestController public class HelloController { @PostMapping("/save") public String saveName(String name,HttpSession session){ session.setAttribute("name",name); return "8080"; } @GetMapping("/get") public String getName(HttpSession httpSession){ return httpSession.getAttribute("name").toString(); } }
Nginx 負載均衡
mingming@xiaoming-pc:~$ sudo apt-get install nginx
修改配置檔案
upstream sang.com { server 192.168.0.1:8080 weight = 1; server 192.168.0.2:8080 weight = 1; } server { listen 80; server_name localhost; location / { proxy_pass http://sang.com; proxy_redirect default; } }
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