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

<parent>
  <groupid>org.springframework.boot</groupid>
  <artifactid>spring-boot-starter-parent</artifactid>
  <version>1.5.9.release</version>
  </parent>
 <dependencies>
  <dependency>
    <groupid>org.springframework.boot</groupid>
    <artifactid>spring-boot-starter-web</artifactid>
  </dependency>
  <!-- 单元测试使用 -->
  <dependency>
    <groupid>org.springframework.boot</groupid>
    <artifactid>spring-boot-starter-test</artifactid>
  </dependency>
  <dependency>
   <groupid>junit</groupid>
   <artifactid>junit</artifactid>
   <scope>test</scope>
  </dependency>
 </dependencies>

  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 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 ，可以看到输出结果

补充：我的项目的目录结构

总结

以上所述是小编给大家介绍的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