Springboot读取配置文件及自定义配置文件的方法

Springboot读取配置文件及自定义配置文件的方法

1.创建maven工程，在pom文件中添加依赖

org.springframework.boot

spring-boot-starter-pahttp://rent

1.5.9.RELEASE

org.springframework.boot

spring-boot-starter-web

org.springframework.boot

spring-boot-starter-test

junit

junit

test

2.创建项目启动类 StartApplication.java

package com.kelly.controller;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

import org.springframework.context.annotation.ComponentScan;

import org.springframework.context.annotation.Configuration;

@Configuration

@EnableAutoConfiguration //自动加载配置信息

@ComponentScan("com.kelly")//使包路径下带有注解的类可以使用@Autowired自动注入

public class StartApplication {

public static void main(String[] args) {

SpringApplication.run(StartApplication.class, args);

}

}

package com.kelly.controller;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

import org.springframework.context.annotation.ComponentScan;

import org.springframework.context.annotation.Configuration;

@Configuration

@EnableAutoConfiguration //自动加载配置信息

@ComponentScan("com.kelly")//使包路径下带有注解的类可以使用@Autowired自动注入

public class StartApplication {

public static void main(String[] args) {

SpringApplication.run(StartApplication.class, args);

}

}

package com.kelly.controller;

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 FirstController {

@Value("${test.name}")

private String name;

@Value("${test.password}")

private String password;

@RequestMapping("/")

@ResponseBody

String home()

{

return "Hello Springboot!";

}

@RequestMapping("/hello")

@ResponseBody

String hello()

{

return "name: " + name + ", " + "password: " + password;

}

}

5.打开浏览器，输入 http://localhost:8081/springboot/hello 即可看到结果

6.使用java bean的方式读取自定义配置文件 define.properties

DefineEntity.java

package com.kelly.entity;

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

import org.springframework.context.annotation.PropertySource;

import org.springframework.stereotype.Component;

@Component

@ConfigurationProperties(prefix="defineTest")

@PropertySource("classpath:define.properties")

public class DefineEntity {

private String pname;

private String password;

public String getPname() {

return pname;

}

public void setPname(String pname) {

this.pname = pname;

}

public String getPassword() {

return password;

}

public void setPassword(String password) {

this.password = password;

}

}

SecondController.java

package com.kelly.controller;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.ResponseBody;

import com.kelly.entity.DefineEntity;

@Controller

public class SecondController {

@Autowired

DefineEntity defineEntity;

@RequestMapping("/define")

@ResponseBody

String define()

{

return "test.name:" + defineEntity.getPname() + ", test.password:" + defineEntity.getPassword();

}

}

7.打开浏览器，访问 http://localhost:8081/springboot/define，可以看到输出结果

补充：我的项目的目录结构

总结

以上所述是给大家介绍的Springboot读取配置文件及自定义配置文件的方法，希望对大家有所帮助，如果大家有任何疑问请给我留言，会及时回复大家的。在此也非常感谢大家对我们网站的支持！

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