添加依赖
在pom中添加依赖
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency> 添加@ConfigurationProperties
在对应的类上添加 @ConfigurationProperties(prefix = "student")
package com.softtool.study.bean; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; @Component @ConfigurationProperties(prefix = "student") public class Student { private int id; private String name; private Integer age; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } @Override public String toString() { return "Student{" + "id=" + id + ", name='" + name + '\'' + ", age=" + age + '}'; } } 从新运行一下程序
然后打开yml，输入student,就会有提示了
