现在我们尝试不使用Spring的XML文件来配置了,全权交给Java来做
这个类要被Spring接管,要被注册到容器中
- 添加
@Component
注解- 通过
@Value
注解来为属性注入值
package com.wq.pojo;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
public class User {
@Value("光头强")
private String name;
@Value("20")
private int age;
@Override
public String toString() {
return "User{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}
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;
}
}
新建config包
编写config类
为这个类添加@Configuration
注解,表示这个类也会被spring托管
package com.wq.config;
import com.wq.pojo.User;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class WqConfig {
@Bean
public User getUser(){
return new User();
}
}