SpringBoot 自定义start

朱雀 2022-09-14 02:29 56阅读 0赞

## 一，自定义自动装备Bean： ##

@EnableConfigurationProperties(SimpleBean.class)  //开启ConfigurationProperties注解
    @ConfigurationProperties(prefix = "simplebean")
    public class SimpleBean {
    
        private int id;
        private String name;
    
        public int getId() {
            return id;
        }
    
        public void setId(int id) {
            this.id = id;
        }
    
        public String getName() {
            return name;
        }
    
        public void setName(String name) {
            this.name = name;
        }
    
        @Override
        public String toString() {
            return "SimpleBean{" +
                    "id=" + id +
                    ", name='" + name + '\'' +
                    '}';
        }
    }

## 二，自动转配类 ##

import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    
    
    @Configuration
    //@ConditionalOnClass(SimpleBean.class)    //当类路径下有指定类的情况下，就会进行自动配置
    @ConditionalOnClass
    public class MyAutoConfiguration {
    
        static {
            System.out.println("MyAutoConfiguration init....");
        }
    
    
        @Bean
        public SimpleBean simpleBean() {
    
            return new SimpleBean();
        }
    
    
    }

##  三，pom.xml引入 ##

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-autoconfigure</artifactId>
                <version>2.2.2.RELEASE</version>
            </dependency>
        </dependencies>

## ☆四，配置加载配置文件 ##

**添加位置：**

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBARllIYW5ubm5ubg_size_14_color_FFFFFF_t_70_g_se_x_16][]

**配置文件内容：**

![watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBARllIYW5ubm5ubg_size_20_color_FFFFFF_t_70_g_se_x_16][]

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[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBARllIYW5ubm5ubg_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220828/af7e1baf322f4272bcf0f1de01ac969c.png