当初各种自定义的starter不足为奇，兴许就须要本人来自定义一个starter了。学习一下starter的构建必备

starter-定义

首先须要自顶一个配置bean

package com.zhao.starter;import org.springframework.boot.context.properties.ConfigurationProperties;import org.springframework.boot.context.properties.EnableConfigurationProperties;@EnableConfigurationProperties(StarterBean.class)@ConfigurationProperties(prefix = "starterbean")public class StarterBean {    private String id;    private String name;    public String getId() {        return id;    }    public void setId(String id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    @Override    public String toString() {        return "StarterBean{" +                "id='" + id + '\'' +                ", name='" + name + '\'' +                '}';    }}

而后须要通过Springboot主动注入的注解，以及Spring spi 的spring.factories将配置bean退出主动配置的治理

@Configuration@ConditionalOnClasspublic class StartBeanAutoConfiguration {    static {        System.out.println("custom auto configuration init ");    }    @Bean    public StarterBean starterBean(){        return  new StarterBean();    }}

资源目录下新建META-INF文件夹下spring.factories文件，

org.springframework.boot.autoconfigure.EnableAutoConfiguration=com.zhao.starter.StartBeanAutoConfiguration

pom文件

<?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>    <groupId>com.zhao</groupId>    <artifactId>starter-demo</artifactId>    <version>1.0-SNAPSHOT</version>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-autoconfigure</artifactId>            <version>2.2.2.RELEASE</version>        </dependency>    </dependencies></project>

应用maven install之后就能够在新建我的项目时应用了。

starter应用测试

pom定义

<?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>    <groupId>com.zhao</groupId>    <artifactId>starter-use-demo</artifactId>    <version>1.0-SNAPSHOT</version>    <dependencies>        <dependency>            <groupId>com.zhao</groupId>            <artifactId>starter-demo</artifactId>            <version>1.0-SNAPSHOT</version>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>            <version>2.2.2.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-test</artifactId>            <version>2.2.2.RELEASE</version>            <scope>test</scope>        </dependency>    </dependencies></project>

启动类

@SpringBootApplicationpublic class StarterUseApplication {    public static void main(String[] args) {        SpringApplication.run(StarterUseApplication.class,args);    }}

配置starter须要的bean的配置

starterbean.id=test123starterbean.name=zhaozhen

测试类

@RunWith(SpringRunner.class)@SpringBootTest(classes = StarterUseApplication.class)public class StarterUseTest {    @Autowired    StarterBean starterBean;    @Test    public void starUse(){        System.out.println(starterBean);    }}

测试后果，失常应用

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