自定义Spring Boot Starter

1.引入依赖

 <packaging>jar</packaging><dependencies><!-- Spring Boot 自动配置依赖 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-autoconfigure</artifactId><version>2.6.13</version></dependency><!-- 可选：配置注解处理器 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-configuration-processor</artifactId><version>2.6.13</version><optional>true</optional></dependency></dependencies>

2.配置属性类

package top.remained.lx.properties;import org.springframework.boot.context.properties.ConfigurationProperties;/*** @author lx* @date 2025/5/8* @description 配置属性类*/
@ConfigurationProperties(prefix = "lx")
public class LxProperties {private String name = "default";private int timeout = 1000;public String getName() {return name;}public void setName(String name) {this.name = name;}public int getTimeout() {return timeout;}public void setTimeout(int timeout) {this.timeout = timeout;}
}

3.业务服务类

package top.remained.lx.service;/*** @author lx* @date 2025/5/8* @description 业务服务类*/
public class LxService {private final String name;private final int timeout;public LxService(String name, int timeout) {this.name = name;this.timeout = timeout;}public String greet() {return "Hello, " + name + "! (timeout: " + timeout + "ms)";}
}

4.创建自动配置类

package top.remained.lx.configuration;import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import top.remained.lx.properties.LxProperties;
import top.remained.lx.service.LxService;/*** @author lx* @date 2025/5/8* @description*/
@Configuration
@EnableConfigurationProperties(LxProperties.class)
@ConditionalOnClass(LxService.class)
@ConditionalOnProperty(prefix = "lx", name = "enabled",havingValue = "true",matchIfMissing = true)
public class LxConfiguration {@Bean
//    @ConditionalOnMissingBean(LxProperties.class) // 如果没有创建bean 则创建默认beanpublic LxService lxService(LxProperties lxProperties) {return new LxService(lxProperties.getName(), lxProperties.getTimeout());}
}

5.注册自动配置

在resources/META-INF下创建spring.factories文件

org.springframework.boot.autoconfigure.EnableAutoConfiguration=top.remained.lx.configuration.LxConfiguration

6.案例使用

6.1 引入依赖

      <dependency><groupId>top.remained</groupId><artifactId>lx-stater</artifactId><version>2.7.8</version></dependency>

6.2 手动引入jar包

mvn install:install-file -D"file=C:\soft\fastexcel-1.1.0.jar" -D"groupId=cn.idev.excel" -D"artifactId=fastexcel" -D"version=1.1.0" -Dpackaging=jar

6.3 yml中配置

6.4 实际使用

@RequestMapping("/lx")
@RestController
public class TestLXStarterController {@Autowiredprivate LxService lxService;@GetMapping("/greet")public String greet() {return lxService.greet();}
}

7.包结构