<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.4.1</version>
    <relativePath/>
</parent>

<dependencies>
    <!-- MySQL Connector -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.31</version>
    </dependency>
    <!-- Mybatis-Plus -->
    <dependency>
        <groupId>com.baomidou</groupId>
        <artifactId>mybatis-plus-boot-starter</artifactId>
        <version>3.5.9</version>
    </dependency>
</dependencies>

# DataSource 配置
spring:
  application:
    name: ai-grading-base # 服務(wù)名 將在 Eureka 中注冊
  datasource:
    url: jdbc:mysql://localhost:3306/xxx-xxx?useUnicode=true&characterEncoding=UTF-8&useSSL=false
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: xxx
    password: yyy
    hikari:
      maximum-pool-size: 10  # 設(shè)置最大連接池大小
      minimum-idle: 5        # 最小空閑連接數(shù)
      idle-timeout: 30000    # 空閑連接的最大存活時(shí)間 單位：毫秒
      max-lifetime: 600000   # 連接最大生命周期 單位：毫秒
      connection-timeout: 30000  # 連接超時(shí)時(shí)間 單位：毫秒
      validation-timeout: 5000    # 校驗(yàn)連接的超時(shí)時(shí)間 單位：毫秒
      leak-detection-threshold: 15000  # 連接泄漏檢測閾值 單位：毫秒
      pool-name: HikariCP      # 連接池的名稱
      auto-commit: true        # 是否啟用自動(dòng)提交

# MyBatis 配置
mybatis-plus:
  mapper-locations: classpath:mapper/*Mapper.xml
  type-aliases-package: xxx.xxx.xxx.pojo  
  configuration:
    map-underscore-to-camel-case: true
    #開啟日志打印
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

@MapperScan("xxx.xx.xxx.mapper")
@SpringBootApplication
public class AiGradingBaseApplication {
    public static void main(String[] args) {
        SpringApplication.run(AiGradingBaseApplication.class, args);
    }
}

spring.cloud.bootstrap.enabled=true

-Dspring.cloud.bootstrap.enabled=true

public static boolean bootstrapEnabled(Environment environment) {
    return (Boolean) environment.getProperty("spring.cloud.bootstrap.enabled", Boolean.class, false) || MARKER_CLASS_EXISTS;
}

spring:
  cloud:
    config:
      uri: http://localhost:8888
    bootstrap:
      enabled: true

ConfigurableEnvironment environment = event.getEnvironment();
String configUri = environment.getProperty("spring.cloud.config.uri", String.class, "http://localhost:8888");

@Configuration
@PropertySource("classpath:/bootstrap.yml")
public class BootstrapConfig {
    @Value("${spring.cloud.config.uri}")
    private String configUri;
}

@Configuration
@EnableConfigurationProperties(ConfigProperties.class)
public class ConfigBootstrap {
    // 自動(dòng)注入配置類
    @Autowired
    private ConfigProperties configProperties;
}

@ConfigurationProperties(prefix = "spring.cloud.config")
public class ConfigProperties {
    private String uri;

    // Getter and Setter
}

public class CustomBootstrapApplicationContextInitializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
    @Override
    public void initialize(ConfigurableApplicationContext applicationContext) {
        // 自定義初始化邏輯 處理 bootstrap 配置
    }
}

SpringApplication app = new SpringApplication(MyApplication.class);
app.addInitializers(new CustomBootstrapApplicationContextInitializer());
app.run(args);

public class BootstrapApplicationListener implements ApplicationListener<ApplicationEnvironmentPreparedEvent>, Ordered {
    public void onApplicationEvent(ApplicationEnvironmentPreparedEvent event) {
        ConfigurableEnvironment environment = event.getEnvironment();
        if (PropertyUtils.bootstrapEnabled(environment)) {
            // 初始化 bootstrap 上下文 加載 bootstrap.yml 配置
        }
    }
}

<build>
    <finalName>xx-xx-xx</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    <resources>
        <resource>
            <directory>src/main/java</directory>
            <includes>
            <include>/*.yml</include>
            <include>/*.properties</include>
            <include>/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <includes>
            <include>/*.yml</include>
            <include>/*.properties</include>
            <include>/*.xml</include>
            </includes>
            <filtering>false</filtering>
        </resource>
    </resources>
</build>

@MapperScan("xxx.xxx.xxx.mapper")
@SpringBootApplication(exclude= {DataSourceAutoConfiguration.class})
public class AiGradingBaseApplication {
    public static void main(String[] args) {
        SpringApplication.run(AiGradingBaseApplication.class, args);
    }
}

spring:
 autoconfigure:
 	exclude: org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration

Config First Bootstrap
To use the legacy bootstrap way of connecting to Config Server, bootstrap must be enabled via a property or the spring-cloud-starter-bootstrap starter. The property is spring.cloud.bootstrap.enabled=true. It must be set as a System Property or environment variable. Once bootstrap has been enabled any application with Spring Cloud Config Client on the classpath will connect to Config Server as follows: When a config client starts, it binds to the Config Server (through the spring.cloud.config.uri bootstrap configuration property) and initializes Spring Environment with remote property sources.

The net result of this behavior is that all client applications that want to consume the Config Server need a bootstrap.yml (or an environment variable) with the server address set in spring.cloud.config.uri (it defaults to "http://localhost:8888").

<!-- 舊版 -->
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.3.12.RELEASE</version>
    <relativePath/>
</parent>
<!-- 新版 -->
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.4.1</version>
    <relativePath/>
</parent>

package org.springframework.cloud.bootstrap;

public class BootstrapApplicationListener implements ApplicationListener<ApplicationEnvironmentPreparedEvent>, Ordered {

    // 定義常量：bootstrap 配置源名稱
    public static final String BOOTSTRAP_PROPERTY_SOURCE_NAME = "bootstrap";

    // 定義常量：默認(rèn)屬性名稱
    public static final String DEFAULT_PROPERTIES = "springCloudDefaultProperties";
    
    // 省略部分代碼...

    // 構(gòu)造函數(shù)
    public BootstrapApplicationListener() {
    }

    // 監(jiān)聽到 ApplicationEnvironmentPreparedEvent 事件時(shí)調(diào)用的方法
    public void onApplicationEvent(ApplicationEnvironmentPreparedEvent event) {
        // 獲取當(dāng)前環(huán)境對(duì)象
        ConfigurableEnvironment environment = event.getEnvironment();
        
        // 新版 - 檢查是否啟用了 bootstrap 或使用了傳統(tǒng)的處理方式
	    // if (PropertyUtils.bootstrapEnabled(environment) || PropertyUtils.useLegacyProcessing(environment)) {
        // 舊版 - 檢查是否啟用了 bootstrap
        if ((Boolean) environment.getProperty("spring.cloud.bootstrap.enabled", Boolean.class, true)) {
        
            // 如果環(huán)境中沒有包含名為 "bootstrap" 的屬性源
            if (!environment.getPropertySources().contains("bootstrap")) {
                ConfigurableApplicationContext context = null;
                // 解析配置的 bootstrap 名稱 默認(rèn)為 "bootstrap"
                String configName = environment.resolvePlaceholders("${spring.cloud.bootstrap.name:bootstrap}");
                // 獲取 Spring 應(yīng)用的初始化器列表
                Iterator var5 = event.getSpringApplication().getInitializers().iterator();
                // 省略部分代碼...
            }
        }
    }
}

package org.springframework.cloud.util;

import org.springframework.core.env.Environment;
import org.springframework.util.ClassUtils;

public abstract class PropertyUtils {
    
    // 定義常量：表示是否啟用了 bootstrap 配置
    public static final String BOOTSTRAP_ENABLED_PROPERTY = "spring.cloud.bootstrap.enabled";
    
    // 定義常量：用于標(biāo)記類是否存在
    public static final boolean MARKER_CLASS_EXISTS = ClassUtils.isPresent("org.springframework.cloud.bootstrap.marker.Marker", (ClassLoader)null);

    // 判斷是否啟用了 bootstrap 配置的方法
    public static boolean bootstrapEnabled(Environment environment) {
        // 獲取 "spring.cloud.bootstrap.enabled" 配置的值 默認(rèn)為 false
        return (Boolean) environment.getProperty("spring.cloud.bootstrap.enabled", Boolean.class, false) || MARKER_CLASS_EXISTS;
    }

    // 省略部分代碼...
}