springboot 获取yml变量_Spring Boot的快速使用

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我是靠谱客的博主想人陪季节，这篇文章主要介绍springboot 获取yml变量_Spring Boot的快速使用，现在分享给大家，希望可以做个参考。

1：使用IDEA的springboot模板创建boot项目

file>new project（new module）>spring initializr

IDEA需要启用springboot插件才会显示这个组件

根据需要填写相关信息

选择号需要起步依赖的功能

填写项目位置

项目创建完毕

2：功能介绍

启动类

pom.xml文件

SpringBoot配置文件(application.properties/application.yml）

yml文件（yaml）的语法

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#普通变量
username: zhangsan

#体现对象的字段
student：
  name: zhangsan
  ager: 18
  address: beijing

#list/set集合
teacher:
  - zhangsan
  - lisi
  - wanwu

#map集合：与“体现对象的字段”的方式一样

#体现list/set集合下的对象字段
teacher02:
  - name: zhangsan
    age: 18
    address: beijing
  - name: lisi
    age: 17
    address: tianjin

从配置文件中获取值

使用springmvc的@value

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package com.example.demo.com;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class test {

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


    @RequestMapping("test01")
    @ResponseBody
    public String test(){
        System.out.println(username);
        return username;
    }
}

使用springboot的@ConfigurationProperties（注意：需要配置get/set方法，需要在pom.xml中引入相应的坐标）

复制代码

package com.example.demo.com;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@ConfigurationProperties(prefix = "student")
public class test {

private String name;
    private String age;
    private String address;

public String getName() {
        return name;
    }

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

public String getAge() {
        return age;
    }

public void setAge(String age) {
        this.age = age;
    }

public String getAddress() {
        return address;
    }

public void setAddress(String address) {
        this.address = address;
    }

@RequestMapping("test01")
    @ResponseBody
    public String test(){
        return name+age+address;
    }
}

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package com.example.demo.com;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@ConfigurationProperties(prefix = "student")
public class test {

    private String name;
    private String age;
    private String address;

    public String getName() {
        return name;
    }

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

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    @RequestMapping("test01")
    @ResponseBody
    public String test(){
        return name+age+address;
    }
}