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SpringBoot獲取配置信息的三種方式總結(jié)

更新時間：2024年01月16日 10:16:53 作者：秋日的晚霞

這篇文章給大家介紹了SpringBoot獲取配置信息的三種方式,@Value屬性值注入,綁定配置類和通過 environment獲取這三種方式,文中通過代碼示例給大家介紹的非常詳細,具有一定的參考價值,需要的朋友可以參考下

Spring獲取配置信息的三種方式

1. @Value屬性值注入

    @Value("${student.name}")
    private String name;

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

    @PostConstruct
    private void init()
    {
        System.out.println("name = " + name);
    }

2. 綁定配置類

@ConfigurationProperties(prefix = "student")
public class StudentProperties {
    private String name;

    public String getName() {
        return name;
    }

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

@EnableConfigurationProperties(StudentProperties.class)
@SpringBootApplication
public class SpringConfigDemoApplication {

    @Value("${student.name}")
    private String name;

    @Autowired
    private StudentProperties studentProperties;


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

    @PostConstruct
    private void init()
    {
        System.out.println("name1 = " + name);
    }

    @PostConstruct
    private void init2()
    {
        System.out.println("name2 = " +studentProperties.getName());
    }
    
    }

3. 通過 environment 獲取

package com.sz.springconfigdemo;

import com.sz.springconfigdemo.properties.StudentProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.core.annotation.Order;
import org.springframework.core.env.Environment;

import javax.annotation.PostConstruct;

@EnableConfigurationProperties(StudentProperties.class)
@SpringBootApplication
public class SpringConfigDemoApplication {

    @Value("${student.name}")
    private String name;

    @Autowired
    private StudentProperties studentProperties;

    @Autowired
    private Environment environment;

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

    @PostConstruct
    private void init()
    {
        System.out.println("name1 = " + name);
    }

    @PostConstruct
    private void init2()
    {
        System.out.println("name2 = " +studentProperties.getName());
    }

    @PostConstruct
    private void init3()
    {
        String environmentProperty = environment.getProperty("student.name");
        System.out.println("name3 = " +environmentProperty);
    }
}

以上就是SpringBoot獲取配置信息的三種方式總結(jié)的詳細內(nèi)容，更多關(guān)于SpringBoot獲取配置信息的資料請關(guān)注腳本之家其它相關(guān)文章！

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