@ConfigurationProperties注解

@ConfigurationProperties实现配置文件中的属性注解

@Component
@ConfigurationProperties (prefix = "user1")
public class User {
    private int id;
    private String name;
    private int cod;
    private String text;

    public void Id(int id) {this.id = id;}
    public void asd(String name) {this.name = name;}
    public void set(int cod) {this.cod = cod;}
    public void setText(String text) {this.text = text;}
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", cod=" + cod +
                ", text='" + text + '\'' +
                '}';
    }
}

application.yml

user1:
  id: 12
  name: "sad"
  cod : 123
  text: 132

• 在注解时prefix不能为user，在为user时会优先读取计算机用户的name

---

• 在注入属性时必须要有set***方法，不然无法注入

---

    public void Id(int id) {this.id = id;}
    public void asd(String name) {this.name = name;}
    public void set(int cod) {this.cod = cod;}
    public void setText(String text) {this.text = text;}
 //输出
//User{id=0, name='null', cod=0, text='132'}

• 注入与方法中的属性名的大小写无关,但'set'必须为小写,且set方法中不允许有_，如set_***会直接报错

---

    public void setid(int id) {this.id = id;}
    public void setNAME(String name) {this.name = name;}
    public void SeTCOD(int cod) {this.cod = cod;}
    public void SETtext(String text) {this.text = text;}
//输出
//User{id=12, name='sad', cod=0, text='null'}