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koupleless 合并多个微服务应用到一个应用实例（包含springcloud gateway）

news 来源：原创 2025/5/9 10:20:39

koupleless

Koupleless 是一种模块化的 Serverless 技术解决方案。基础原理是拆分成了基座+模块的概念。支持模块化开发。适用的场景：

应用合并部署
模块化开发
模块隔离
插件化
优化启动速度等
热启动部署

拆分原则

基座加载所需的所有基础依赖
模块只需要将依赖改成provider
如果模块依赖基座的bean例如数据源可以使用SpringBeanFinder.getBaseBean(DataSource.class)

maven 依赖

基座

<dependency>  
    <groupId>com.alipay.sofa.koupleless</groupId>  
    <artifactId>koupleless-base-starter</artifactId>  
    <version>${koupleless.runtime.version}</version>  
</dependency>

-- 插件
<build>  
    <finalName>${project.artifactId}</finalName>  
    <plugins>  
        <plugin>  
            <groupId>com.alipay.sofa.koupleless</groupId>  
            <artifactId>koupleless-base-build-plugin</artifactId>  
            <version>${koupleless.runtime.version}</version>  
            <executions>  
                <execution>  
                    <goals>  
                        <goal>add-patch</goal>  
                    </goals>  
                </execution>  
            </executions>  
        </plugin>  
        <plugin>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-maven-plugin</artifactId>  
            <executions>  
                <execution>  
                    <goals>  
                        <goal>repackage</goal>  
                    </goals>  
                </execution>  
            </executions>  
        </plugin>  
    </plugins>  
</build>

模块

<dependency>  
    <groupId>com.alipay.sofa.koupleless</groupId>  
    <artifactId>koupleless-app-starter</artifactId>  
    <version>${koupleless.runtime.version}</version>  
    <scope>provided</scope>  
</dependency>

<build>  
    <finalName>${project.artifactId}</finalName>  
    <plugins>  
        <!--这里添加ark 打包插件-->  
        <plugin>  
            <groupId>com.alipay.sofa</groupId>  
            <artifactId>sofa-ark-maven-plugin</artifactId>  
            <version>${sofa.ark.version}</version>  
            <executions>  
                <execution>  
                    <id>default-cli</id>  
                    <goals>  
                        <goal>repackage</goal>  
                    </goals>  
                </execution>  
            </executions>  
            <configuration>  
                <skipArkExecutable>true</skipArkExecutable>  
                <outputDirectory>./target</outputDirectory>  
                <bizName>hh-bidding</bizName>  
                <webContextPath>bidding</webContextPath>  
                <declaredMode>true</declaredMode>  
                <packExcludesConfig>rules.txt</packExcludesConfig>  
            </configuration>  
        </plugin>  
        <plugin>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-maven-plugin</artifactId>  
            <executions>  
                <execution>  
                    <goals>  
                        <goal>repackage</goal>  
                    </goals>  
                </execution>  
            </executions>  
        </plugin>  
    </plugins>  
</build>

注意事项

模块的生命周期
模块销毁会销毁到模块的所有bean，这个时候需要注意如果引用的基座bean的话如 Datasource，可能会被销毁。所有可以，解决方法

package com.ruoyi.common.core.xss;  
  
import javax.sql.DataSource;  
import java.io.PrintWriter;  
import java.sql.Connection;  
import java.sql.SQLException;  
import java.sql.SQLFeatureNotSupportedException;  
import java.util.logging.Logger;  
  
/**  
 * @author wxl  
 */public class MyDataSource implements DataSource {  
  
    public DataSource dataSource;  
  
    public MyDataSource(DataSource dataSource) {  
        this.dataSource = dataSource;  
    }  
  
    @Override  
    public Connection getConnection() throws SQLException {  
        return dataSource.getConnection();  
    }  
  
    @Override  
    public Connection getConnection(String username, String password) throws SQLException {  
        return dataSource.getConnection(username, password);  
    }  
  
    @Override  
    public <T> T unwrap(Class<T> iface) throws SQLException {  
        return dataSource.unwrap(iface);  
    }  
  
    @Override  
    public boolean isWrapperFor(Class<?> iface) throws SQLException {  
        return dataSource.isWrapperFor(iface);  
    }  
  
    @Override  
    public PrintWriter getLogWriter() throws SQLException {  
        return dataSource.getLogWriter();  
    }  
  
    @Override  
    public void setLogWriter(PrintWriter out) throws SQLException {  
  
    }  
  
    @Override  
    public void setLoginTimeout(int seconds) throws SQLException {  
        dataSource.setLoginTimeout(seconds);  
    }  
  
    @Override  
    public int getLoginTimeout() throws SQLException {  
        return dataSource.getLoginTimeout();  
    }  
  
    @Override  
    public Logger getParentLogger() throws SQLFeatureNotSupportedException {  
        return dataSource.getParentLogger();  
    }  
}

声明新的ds

@Bean(name = "dataSource")  
@ConditionalOnMissingBean  
public DataSource dataSource() {  
 
   return new MyDataSource(SpringBeanFinder.getBaseBean(DataSource.class));  
}

spring cloud gateway 和web 应用合并问题

spring cloud gateway是webflux 和tomcat 部署到一起需要修改一些东西，基座需要引入

<dependency>  
    <groupId>org.springframework.boot</groupId>  
    <artifactId>spring-boot-starter-webflux</artifactId>  
</dependency>

并配置

spring.main.web-application-type=servlet

spring cloud gateway 应用

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})  
@EnableWebFlux  
@Import({GatewayAutoConfiguration.class})  
public class RuoYiGatewayApplication {  
    public static void main(String[] args) {  
        SpringApplication.run(RuoYiGatewayApplication.class, args);  
    }  
}