Spring Start制作

作者：不染心

时间：2022/7/20

Project Structure

制作start

package com.dyl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.annotation.Resource;

/**
 * @author dyl
 * @description:
 * @date 2022/6/7 0007 上午 9:57
 */
@Configuration // 标志为注解类
//@ConditionalOnWebApplication //是web类的时候加载
@EnableConfigurationProperties(HelloProperties.class) // 使得HelloProperties属性文件生效
public class AutoConfig {

    // 导入属性文件
    @Autowired
    private HelloProperties helloProperties;

    @Bean
    public HelloService helloService() {
        HelloService service = new HelloService();
        service.setHelloProperties(helloProperties);
        return service;
    }
}

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package com.dyl;

import org.springframework.boot.context.properties.ConfigurationProperties;

/**
 * @author dyl
 * @description:
 * @date 2022/6/7 0007 上午 9:56
 */
@ConfigurationProperties(prefix = "example.hello") //  绑定配置文件中所有以example.hello开头的配置
public class HelloProperties {

    /**
     * 前缀
     */
    private String prefix;

    /**
     * 后缀
     */
    private String suffix;

    public String getPrefix() {
        return prefix;
    }

    public void setPrefix(String prefix) {
        this.prefix = prefix;
    }

    public String getSuffix() {
        return suffix;
    }

    public void setSuffix(String suffix) {
        this.suffix = suffix;
    }
}

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package com.dyl;

/**
 * @author dyl
 * @description:
 * @date 2022/6/7 0007 上午 9:56
 */
public class HelloService {

    /**
     * 生产HelloProperties的getSet方法，使得配置类可以得到它
     */
    HelloProperties helloProperties;

    public HelloProperties getHelloProperties() {
        return helloProperties;
    }

    public void setHelloProperties(HelloProperties helloProperties) {
        this.helloProperties = helloProperties;
    }

    public String sayHello(String name) {
        // 返回打招呼信息，招呼信息是可配置的
        return helloProperties.getPrefix() + "-" + name + "-" + helloProperties.getSuffix();
    }
}

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spring.factories

org.springframework.boot.autoconfigure.EnableAutoConfiguration=com.dyl.AutoConfig
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使用start

<dependency>
    <groupId>org.examplegroupId>
    <artifactId>starter-serviceartifactId>
    <version>1.0-SNAPSHOTversion>
dependency>
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application.properties

example.hello.prefix = "EXAMPLE"
example.hello.suffix = "HELLO"
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@Resource
HelloService helloService;

System.out.println(helloService.sayHello("dyl"));
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Result:

"EXAMPLE"-dyl-"HELLO"
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