# qyt-spring-boot-starter

**Repository Path**: qytcoding/qyt-spring-boot-starter

## Basic Information

- **Project Name**: qyt-spring-boot-starter
- **Description**: 自定义的springboot自动启动包
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-12-26
- **Last Updated**: 2021-12-26

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## 自定义生成springboot启动器

创建工程：

父类功能：qyt-springbot-starter

子模块：qyt-spring-boot-autoconfigure、qyt-spring-boot-starter

1、pom的内容

qyt-springbot-starter

```bash
<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.17.RELEASE</version>
        <relativePath />
</parent>

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

qyt-spring-boot-autoconfigure

```bash
<parent>
    <artifactId>qyt-springboot-starter</artifactId>
    <groupId>com.qyt</groupId>
    <version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>

<artifactId>qyt-spring-boot-autoconfigure</artifactId>


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

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-configuration-processor</artifactId>
    <optional>true</optional>
</dependency>
</dependencies>
```

qyt-spring-boot-starter

```bash
    <parent>
        <artifactId>qyt-springboot-starter</artifactId>
        <groupId>com.qyt</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>qyt-spring-boot-strarter</artifactId>
    <description>
        启动器(starter)是一个空的jar文件
        仅仅提供辅助性作用
    </description>
    <dependencies>
<!--      引入autoconfigure  -->
        <dependency>
            <groupId>com.qyt</groupId>
            <artifactId>qyt-spring-boot-autoconfigure</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>
```

2、开始编写内容

**qyt-springbot-starter和qyt-spring-boot-starter工程没有内容就只用看pom的依赖就可以了**

```bash
/**
 * 自动配置类
 * 给web应用添加一个首页
 */
@Configuration
//加载配置文件，因为可能没有扫描所以要使用该方法手动引用
@EnableConfigurationProperties({HelloProperties.class})
//必须要有这个不然不生效
@ConditionalOnProperty(value = "qyt.hello.name")
public class HelloAutoConfiguration {
    @Autowired
    private HelloProperties helloProperties;
    @Bean
    public HelloController helloController(){
        return new HelloController(helloProperties);
    }
}
```



```bash

@RestController
public class HelloController {
    @Autowired
    HelloProperties helloProperties;

    public HelloController(){
    }
    public HelloController(HelloProperties helloProperties){
            this.helloProperties = helloProperties;
    }
    @GetMapping("/")
    public String getIndex(){
        return " i am  " + helloProperties.getName();
    }
}
```

```bash
@ConfigurationProperties("qyt.hello")
public class HelloProperties {


    private String name ;


    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}
```

在resource目录下创建META-INF文件

创建spring-factories

```bash
# Auto Configure
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.starter.qyt.HelloAutoConfiguration
```