✨ spring-boot-demo-session 完成

pom.xml

@@ -35,6 +35,7 @@
         <module>spring-boot-demo-swagger</module>
         <module>spring-boot-demo-swagger-beauty</module>
         <module>spring-boot-demo-rbac-security</module>
+        <module>spring-boot-demo-session</module>
         <module>spring-boot-demo-websocket</module>
         <module>spring-boot-demo-websocket-socketio</module>
         <module>spring-boot-demo-war</module>

spring-boot-demo-session/.gitignore

@@ -0,0 +1,25 @@
+/target/
+!.mvn/wrapper/maven-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/build/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/

spring-boot-demo-session/README.md

@@ -0,0 +1,126 @@
+# spring-boot-demo-session
+
+> 此 demo 主要演示了 Spring Boot 如何通过 Spring Session 实现Session共享、重启程序Session不失效。
+
+## pom.xml
+
+```xml
+<?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>
+
+    <artifactId>spring-boot-demo-session</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+
+    <name>spring-boot-demo-session</name>
+    <description>Demo project for Spring Boot</description>
+
+    <parent>
+        <groupId>com.xkcoding</groupId>
+        <artifactId>spring-boot-demo</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <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>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+        </dependency>
+
+        <!-- 对象池，使用redis时必须引入 -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-pool2</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>spring-boot-demo-session</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>
+```
+
+## application.yml
+
+```yaml
+server:
+  port: 8080
+  servlet:
+    context-path: /demo
+spring:
+  session:
+    store-type: redis
+    redis:
+      flush-mode: immediate
+      namespace: "spring:session"
+  redis:
+    host: localhost
+    port: 6379
+    # 连接超时时间（记得添加单位，Duration）
+    timeout: 10000ms
+    # Redis默认情况下有16个分片，这里配置具体使用的分片
+    # database: 0
+    lettuce:
+      pool:
+        # 连接池最大连接数（使用负值表示没有限制） 默认 8
+        max-active: 8
+        # 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-wait: -1ms
+        # 连接池中的最大空闲连接 默认 8
+        max-idle: 8
+        # 连接池中的最小空闲连接 默认 0
+        min-idle: 0
+```
+
+## 测试
+
+> 测试 重启程序，Session 不失效的场景
+
+1. 打开浏览器，访问首页：http://localhost:8080/demo/page/index
+2. 最开始未登录，所以会跳转到登录页：http://localhost:8080/demo/page/login?redirect=true 然后点击登录按钮
+3. 登录之后，跳转回首页，此时可以看到首页显示token信息。
+4. 重启程序。不关闭浏览器，直接刷新首页，此时不跳转到登录页。测试成功！
+
+## 参考
+
+- Spring Session 官方文档：https://docs.spring.io/spring-session/docs/current/reference/html5/guides/boot-redis.html#updating-dependencies

spring-boot-demo-session/pom.xml

@@ -0,0 +1,73 @@
+<?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>
+
+    <artifactId>spring-boot-demo-session</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+
+    <name>spring-boot-demo-session</name>
+    <description>Demo project for Spring Boot</description>
+
+    <parent>
+        <groupId>com.xkcoding</groupId>
+        <artifactId>spring-boot-demo</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+        <java.version>1.8</java.version>
+    </properties>
+
+    <dependencies>
+        <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>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+        </dependency>
+
+        <!-- 对象池，使用redis时必须引入 -->
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-pool2</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>cn.hutool</groupId>
+            <artifactId>hutool-all</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>spring-boot-demo-session</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

spring-boot-demo-session/src/main/java/com/xkcoding/session/SpringBootDemoSessionApplication.java

@@ -0,0 +1,27 @@
+package com.xkcoding.session;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * <p>
+ * 启动类
+ * </p>
+ *
+ * @package: com.xkcoding.session
+ * @description: 启动类
+ * @author: yangkai.shen
+ * @date: Created in 2018-12-19 19:35
+ * @copyright: Copyright (c) 2018
+ * @version: V1.0
+ * @modified: yangkai.shen
+ */
+@SpringBootApplication
+public class SpringBootDemoSessionApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootDemoSessionApplication.class, args);
+    }
+
+}
+

spring-boot-demo-session/src/main/java/com/xkcoding/session/config/WebMvcConfig.java

@@ -0,0 +1,39 @@
+package com.xkcoding.session.config;
+
+import com.xkcoding.session.interceptor.SessionInterceptor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistration;
+import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+/**
+ * <p>
+ * WebMvc 配置类
+ * </p>
+ *
+ * @package: com.xkcoding.session.config
+ * @description: WebMvc 配置类
+ * @author: yangkai.shen
+ * @date: Created in 2018-12-19 19:50
+ * @copyright: Copyright (c) 2018
+ * @version: V1.0
+ * @modified: yangkai.shen
+ */
+@Configuration
+public class WebMvcConfig implements WebMvcConfigurer {
+    @Autowired
+    private SessionInterceptor sessionInterceptor;
+
+    @Override
+    public void addInterceptors(InterceptorRegistry registry) {
+        InterceptorRegistration sessionInterceptorRegistry = registry.addInterceptor(sessionInterceptor);
+        // 排除不需要拦截的路径
+        sessionInterceptorRegistry.excludePathPatterns("/page/login");
+        sessionInterceptorRegistry.excludePathPatterns("/page/doLogin");
+        sessionInterceptorRegistry.excludePathPatterns("/error");
+
+        // 需要拦截的路径
+        sessionInterceptorRegistry.addPathPatterns("/**");
+    }
+}

spring-boot-demo-session/src/main/java/com/xkcoding/session/constants/Consts.java

@@ -0,0 +1,21 @@
+package com.xkcoding.session.constants;
+
+/**
+ * <p>
+ * 常量池
+ * </p>
+ *
+ * @package: com.xkcoding.session.constants
+ * @description: 常量池
+ * @author: yangkai.shen
+ * @date: Created in 2018-12-19 19:42
+ * @copyright: Copyright (c) 2018
+ * @version: V1.0
+ * @modified: yangkai.shen
+ */
+public interface Consts {
+    /**
+     * session保存的key
+     */
+    String SESSION_KEY = "key:session:token";
+}

spring-boot-demo-session/src/main/java/com/xkcoding/session/controller/PageController.java

@@ -0,0 +1,67 @@
+package com.xkcoding.session.controller;
+
+import cn.hutool.core.util.IdUtil;
+import cn.hutool.core.util.ObjectUtil;
+import com.xkcoding.session.constants.Consts;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+/**
+ * <p>
+ * 页面跳转 Controller
+ * </p>
+ *
+ * @package: com.xkcoding.session.controller
+ * @description: 页面跳转 Controller
+ * @author: yangkai.shen
+ * @date: Created in 2018-12-19 19:57
+ * @copyright: Copyright (c) 2018
+ * @version: V1.0
+ * @modified: yangkai.shen
+ */
+@Controller
+@RequestMapping("/page")
+public class PageController {
+    /**
+     * 跳转到 首页
+     *
+     * @param request 请求
+     */
+    @GetMapping("/index")
+    public ModelAndView index(HttpServletRequest request) {
+        ModelAndView mv = new ModelAndView();
+
+        String token = (String) request.getSession().getAttribute(Consts.SESSION_KEY);
+        mv.setViewName("index");
+        mv.addObject("token", token);
+        return mv;
+    }
+
+    /**
+     * 跳转到 登录页
+     *
+     * @param redirect 是否是跳转回来的
+     */
+    @GetMapping("/login")
+    public ModelAndView login(Boolean redirect) {
+        ModelAndView mv = new ModelAndView();
+
+        if (ObjectUtil.isNotNull(redirect) && ObjectUtil.equal(true, redirect)) {
+            mv.addObject("message", "请先登录！");
+        }
+        mv.setViewName("login");
+        return mv;
+    }
+
+    @GetMapping("/doLogin")
+    public String doLogin(HttpSession session) {
+        session.setAttribute(Consts.SESSION_KEY, IdUtil.fastUUID());
+
+        return "redirect:/page/index";
+    }
+}

spring-boot-demo-session/src/main/java/com/xkcoding/session/interceptor/SessionInterceptor.java

@@ -0,0 +1,37 @@
+package com.xkcoding.session.interceptor;
+
+import com.xkcoding.session.constants.Consts;
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+/**
+ * <p>
+ * 校验Session的拦截器
+ * </p>
+ *
+ * @package: com.xkcoding.session.interceptor
+ * @description: 校验Session的拦截器
+ * @author: yangkai.shen
+ * @date: Created in 2018-12-19 19:40
+ * @copyright: Copyright (c) 2018
+ * @version: V1.0
+ * @modified: yangkai.shen
+ */
+@Component
+public class SessionInterceptor extends HandlerInterceptorAdapter {
+    @Override
+    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
+        HttpSession session = request.getSession();
+        if (session.getAttribute(Consts.SESSION_KEY) != null) {
+            return true;
+        }
+        // 跳转到登录页
+        String url = "/page/login?redirect=true";
+        response.sendRedirect(request.getContextPath() + url);
+        return false;
+    }
+}

spring-boot-demo-session/src/main/resources/application.yml

@@ -0,0 +1,27 @@
+server:
+  port: 8080
+  servlet:
+    context-path: /demo
+spring:
+  session:
+    store-type: redis
+    redis:
+      flush-mode: immediate
+      namespace: "spring:session"
+  redis:
+    host: localhost
+    port: 6379
+    # 连接超时时间（记得添加单位，Duration）
+    timeout: 10000ms
+    # Redis默认情况下有16个分片，这里配置具体使用的分片
+    # database: 0
+    lettuce:
+      pool:
+        # 连接池最大连接数（使用负值表示没有限制） 默认 8
+        max-active: 8
+        # 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-wait: -1ms
+        # 连接池中的最大空闲连接 默认 8
+        max-idle: 8
+        # 连接池中的最小空闲连接 默认 0
+        min-idle: 0

spring-boot-demo-session/src/main/resources/templates/index.html

@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>spring-boot-demo-session</title>
+</head>
+<body>
+token的值: <h1 th:text="${token}"></h1>
+</body>
+</html>

spring-boot-demo-session/src/main/resources/templates/login.html

@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>spring-boot-demo-session</title>
+</head>
+<body>
+<h1 th:text="${message}" style="background-color: red"></h1>
+
+<button><a th:href="@{'/page/doLogin'}">登录</a></button>
+</body>
+</html>

spring-boot-demo-session/src/test/java/com/xkcoding/session/SpringBootDemoSessionApplicationTests.java

@@ -0,0 +1,17 @@
+package com.xkcoding.session;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+public class SpringBootDemoSessionApplicationTests {
+
+    @Test
+    public void contextLoads() {
+    }
+
+}
+