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编写一个简单的类然后在配置文件设置属性,在controller中获取该属性值
写一个studnet实体类
package com.bdqn.spring_boot_10_31_5.entity;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
//实体类注入容器
@Component
//将该对象实例一个对象给容器,可以在配置文件中进行配置,student是统一的
@ConfigurationProperties(prefix="student")
public class Student {
private String name;
private int age;
public Student(String name, int age) {
this.name = name;
this.age = age;
}
public Student() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
在实体类上交以后然后在配置文件中可以进行属性配置
student.name=jin
student.age=19
最后写controller
package com.bdqn.spring_boot_10_31_5.controller;
import com.bdqn.spring_boot_10_31_5.entity.Student;
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;
@Controller
public class getStudent {
//自动注入
@Autowired
private Student student;
//外部访问路径
@RequestMapping("/sayHello")
//设置返回的方式,该注解是返回给访问对象string字符串
@ResponseBody
public String show(){
return "获取到"+student.getName()+student.getAge();
}
}