1. 增加 yudao-sso-demo-by-code 项目，实现基于授权码模式的单点登录

2. 完成 yudao-sso-demo-by-code 的跳转 SSO 流程

pom.xml

@@ -20,6 +20,7 @@
         <module>yudao-module-pay</module>
         <module>yudao-module-mall</module>
         <module>yudao-module-visualization</module>
+        <module>yudao-example</module>
     </modules>
 
     <name>${project.artifactId}</name>

yudao-example/pom.xml

@@ -0,0 +1,21 @@
+<?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>
+
+    <!-- 由于方便大家拷贝，使用不使用 yudao 作为 Maven parent -->
+
+    <groupId>cn.iocoder.boot</groupId>
+    <artifactId>yudao-example</artifactId>
+    <version>1.0.0-snapshot</version>
+    <packaging>pom</packaging>
+    <modules>
+        <module>yudao-sso-demo-by-code</module>
+    </modules>
+
+    <name>${project.artifactId}</name>
+    <description>提供各种示例，例如说：SSO 单点登录</description>
+    <url>https://github.com/YunaiV/ruoyi-vue-pro</url>
+
+</project>

yudao-example/yudao-sso-demo-by-code/pom.xml

@@ -0,0 +1,53 @@
+<?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>
+
+    <!-- 由于方便大家拷贝，使用不使用 yudao 作为 Maven parent -->
+
+    <groupId>cn.iocoder.boot</groupId>
+    <artifactId>yudao-sso-demo-by-code</artifactId>
+    <version>1.0.0-snapshot</version>
+    <packaging>jar</packaging>
+
+    <name>${project.artifactId}</name>
+    <description>基于授权码模式，如何实现 SSO 单点登录？</description>
+    <url>https://github.com/YunaiV/ruoyi-vue-pro</url>
+
+    <properties>
+        <!-- Maven 相关 -->
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <!-- 统一依赖管理 -->
+        <spring.boot.version>2.6.10</spring.boot.version>
+    </properties>
+
+    <dependencyManagement>
+        <dependencies>
+            <!-- 统一依赖管理 -->
+            <dependency>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-dependencies</artifactId>
+                <version>${spring.boot.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <dependencies>
+        <!-- Web 相关 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>

yudao-example/yudao-sso-demo-by-code/src/main/java/cn/iocoder/yudao/ssodemo/SSODemoApplication.java

@@ -0,0 +1,13 @@
+package cn.iocoder.yudao.ssodemo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SSODemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SSODemoApplication.class, args);
+    }
+
+}

yudao-example/yudao-sso-demo-by-code/src/main/java/cn/iocoder/yudao/ssodemo/controller/AuthController.java

@@ -0,0 +1,14 @@
+package cn.iocoder.yudao.ssodemo.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PostMapping;
+
+@Controller("/auth")
+public class AuthController {
+
+    @PostMapping("/login-by-code")
+    public void loginByCode() {
+
+    }
+
+}

yudao-example/yudao-sso-demo-by-code/src/main/java/cn/iocoder/yudao/ssodemo/framework/SecurityConfiguration.java

@@ -0,0 +1,20 @@
+package cn.iocoder.yudao.ssodemo.framework;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.HttpMethod;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
+
+@Configuration
+public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
+
+    @Override
+    protected void configure(HttpSecurity httpSecurity) throws Exception {
+        httpSecurity.authorizeRequests()
+                // 1. 静态资源，可匿名访问
+                .antMatchers(HttpMethod.GET, "/*.html", "/**/*.html", "/**/*.css", "/**/*.js").permitAll()
+                // last. 兜底规则，必须认证
+                .and().authorizeRequests()
+                .anyRequest().authenticated();
+    }
+}

yudao-example/yudao-sso-demo-by-code/src/main/resources/application.yaml

@@ -0,0 +1,2 @@
+server:
+  port: 18080

yudao-example/yudao-sso-demo-by-code/src/main/resources/static/login.html

@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<title>首页</title>
+	<!-- jQuery：操作 dom、发起请求等 -->
+	<script src="https://lf9-cdn-tos.bytecdntp.com/cdn/expire-1-M/jquery/2.1.2/jquery.min.js" type="application/javascript"></script>
+	<!-- jQuery Cookie：操作 cookie 等 -->
+	<script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/jquery-cookie/1.4.1/jquery.cookie.min.js" type="application/javascript"/></script>
+
+	<script type="application/javascript">
+
+		/**
+		 * 跳转单点登录
+     */
+		function ssoLogin() {
+			const clientId = 'yudao-sso-demo-by-code'; // 可以改写成，你的 clientId
+      const redirectUri = encodeURIComponent('http://127.0.0.1:18080/callback'); // 注意，需要使用 encodeURIComponent 编码地址
+      const responseType = 'code'; // 1）授权码模式，对应 code；2）简化模式，对应 token
+      window.location.href = 'http://127.0.0.1:1024/sso?client_id=' + clientId
+				+ '&redirect_uri=' + redirectUri
+				+ '&response_type=' + responseType;
+    }
+	</script>
+</head>
+<body>
+<!-- 情况一：未登录：1）跳转 ruoyi-vue-pro 的 SSO 登录页 -->
+<div>
+	您未登录，点击 <a href="#" onclick="ssoLogin()">跳转 </a> SSO 单点登录
+</div>
+
+<!-- 情况二：已登录：1）展示用户信息；2）刷新访问令牌；3）退出登录 -->
+</body>
+</html>

yudao-module-system/yudao-module-system-biz/src/main/java/cn/iocoder/yudao/module/system/dal/dataobject/tenant/TenantPackageDO.java

@@ -34,7 +34,7 @@ public class TenantPackageDO extends BaseDO {
      */
     private String name;
     /**
-     * 租户状态
+     * 租户套餐状态
      *
      * 枚举 {@link CommonStatusEnum}
      */