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創建一個自定義的Spring Boot Starter是一個很好的方式來封裝和重用一些常用的功能和配置。下面是一個簡單的步驟指南,幫助你創建一個自定義的Spring Boot Starter。
首先,創建一個新的Maven或Gradle項目來存放你的Starter依賴和代碼。
my-custom-starter/
├── my-custom-starter/
│ ├── src/
│ │ ├── main/
│ │ │ ├── java/com/example/mycustomstarter/
│ │ │ │ ├── MyCustomStarterApplication.java
│ │ │ │ ├── MyCustomStarterConfig.java
│ │ │ │ └── META-INF/
│ │ │ │ └── spring.factories
│ │ │ └── resources/
│ │ │ └── application.properties
│ └── pom.xml
└── pom.xml
my-custom-starter/
├── build.gradle
├── settings.gradle
└── src/
├── main/
│ ├── java/com/example/mycustomstarter/
│ │ ├── MyCustomStarterApplication.java
│ │ ├── MyCustomStarterConfig.java
│ │ └── META-INF/
│ │ └── spring.factories
└── test/
└── java/com/example/mycustomstarter/
└── MyCustomStarterApplicationTests.java
在pom.xml
或build.gradle
中添加必要的依賴。
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.4</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>my-custom-starter</artifactId>
<version>1.0.0</version>
<name>my-custom-starter</name>
<description>A custom Spring Boot Starter</description>
<properties>
<java.version>11</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<!-- Add other dependencies here -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
plugins {
id 'org.springframework.boot' version '2.5.4'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = 'com.example'
version = '1.0.0'
sourceCompatibility = '11'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter'
// Add other dependencies here
}
test {
useJUnitPlatform()
}
創建一個配置類來定義你的Starter的默認配置。
package com.example.mycustomstarter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
@Configuration
@ConfigurationProperties(prefix = "my.custom")
public class MyCustomStarterConfig {
private String property1;
private int property2;
// Getters and Setters
public String getProperty1() {
return property1;
}
public void setProperty1(String property1) {
this.property1 = property1;
}
public int getProperty2() {
return property2;
}
public void setProperty2(int property2) {
this.property2 = property2;
}
}
package com.example.mycustomstarter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
@Configuration
@ConfigurationProperties(prefix = "my.custom")
public class MyCustomStarterConfig {
private String property1;
private int property2;
// Getters and Setters
public String getProperty1() {
return property1;
}
public void setProperty1(String property1) {
this.property1 = property1;
}
public int getProperty2() {
return property2;
}
public void setProperty2(int property2) {
this.property2 = property2;
}
}
創建一個入口類來啟動你的Starter。
package com.example.mycustomstarter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MyCustomStarterApplication {
public static void main(String[] args) {
SpringApplication.run(MyCustomStarterApplication.class, args);
}
}
package com.example.mycustomstarter;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class MyCustomStarterApplication {
public static void main(String[] args) {
SpringApplication.run(MyCustomStarterApplication.class, args);
}
}
在src/main/resources/application.properties
中配置你的Starter屬性。
my.custom.property1=value1
my.custom.property2=42
my.custom.property1=value1
my.custom.property2=42
如果你希望將你的Starter發布到Maven Central或其他倉庫,你需要按照相應的流程進行構建和發布。
mvn clean install
./gradlew build
在其他Spring Boot項目中使用你的自定義Starter。
<dependency>
<groupId>com.example</groupId>
<artifactId>my-custom-starter</artifactId>
<version>1.0.0</version>
</dependency>
implementation 'com.example:my-custom-starter:1.0.0'
通過以上步驟,你已經創建了一個簡單的自定義Spring Boot Starter。你可以根據需要擴展這個Starter,添加更多的配置屬性和自動配置類。希望這個指南對你有所幫助!
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