增加 spring session 的功能

Author: YunaiV

lab-26/lab-26-distributed-session-01/pom.xml

@@ -0,0 +1,24 @@
+<?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">
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.1.10.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>lab-26-distributed-session-01</artifactId>
+
+    <dependencies>
+        <!-- 实现对 Spring MVC 的自动化配置 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+    </dependencies>
+
+</project>

lab-26/lab-26-distributed-session-01/src/main/java/cn/iocoder/springboot/lab26/distributedsession/Application.java

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+package cn.iocoder.springboot.lab26.distributedsession;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}

lab-26/lab-26-distributed-session-01/src/main/java/cn/iocoder/springboot/lab26/distributedsession/controller/SessionController.java

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+package cn.iocoder.springboot.lab26.distributedsession.controller;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.http.HttpSession;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/session")
+public class SessionController {
+
+    @GetMapping("/set") // 其实 PostMapping 更合适，单纯为了方便
+    public void set(HttpSession session,
+                    @RequestParam("key") String key,
+                    @RequestParam("value") String value) {
+        session.setAttribute(key, value);
+    }
+
+    @GetMapping("/get_all")
+    public Map<String, Object> getAll(HttpSession session) {
+        Map<String, Object> result = new HashMap<>();
+        // 遍历
+        for (Enumeration<String> enumeration = session.getAttributeNames();
+             enumeration.hasMoreElements();) {
+            String key = enumeration.nextElement();
+            Object value = session.getAttribute(key);
+            result.put(key, value);
+        }
+        // 返回
+        return result;
+    }
+
+}

lab-26/pom.xml

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+<?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">
+    <parent>
+        <artifactId>labs-parent</artifactId>
+        <groupId>cn.iocoder.springboot.labs</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>lab-26</artifactId>
+    <packaging>pom</packaging>
+    <modules>
+        <module>lab-26-distributed-session-01</module>
+    </modules>
+
+
+</project>