配置文件

[TOC]

初识

默认的 application.properties

server.port=8081
server.servlet.context-path=/girl

可以删除掉使用yml文件

创建 application.yml 文件

server:
  port: 8082
  servlet:
    context-path: /girl

注解方式读取配置文件

server:
  port: 8082
  servlet:
    context-path: /girl
cupSize: B
age: 18

页面代码

package cn.asdasd.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @Value("${cupSize}")
    private String cupSize;

    @Value("${age}")
    private Integer age;

    @RequestMapping(value = "/hello",method = RequestMethod.GET)
    public String say() {
        return  cupSize + age;
    }

}

配置文件用变量

cupSize: B
age: 18
content: "cupSize: ${cupSize},age: ${age} "

网页部分

package cn.asdasd.demo;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @Value("${cupSize}")
    private String cupSize;

    @Value("${age}")
    private Integer age;

    @Value("${content}")
    private String content;

    @RequestMapping(value = "/hello",method = RequestMethod.GET)
    public String say() {
        return  content;
    }

}

读取配置分组

girl:
  cupSize: B
  age: 18

创建一个类 GirlPropertie.java

package cn.asdasd.demo;

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

@Component
@ConfigurationProperties(prefix = "girl")
public class GirlPropertie {

    private String cupSize;

    private Integer age;


    public String getCupSize() {
        return cupSize;
    }

    public Integer getAge() {
        return age;
    }

    public void setCupSize(String cupSize) {
        this.cupSize = cupSize;
    }

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

网页代码

package cn.asdasd.demo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @Autowired
    private GirlPropertie girlPropertie;

    @RequestMapping(value = "/hello",method = RequestMethod.GET)
    public String say() {
        return  girlPropertie.getCupSize();
    }

}

配置文件配置读取测试和生产环境

1. application.yml

spring:
  profiles:
    active: dev

2. 两个环境

application-dev.yml

server:
  port: 8082
  servlet:
    context-path: /girl
girl:
  cupSize: B
  age: 18

application-prod.yml

server:
  port: 8082
  servlet:
    context-path: /girl
girl:
  cupSize: A
  age: 16