Springではxml依存注入(set法注入、コンストラクタ注入)を使用します.

    
      org.springframework
      spring-core
      5.1.9.RELEASE
    

    
      org.springframework
      spring-beans
      5.1.9.RELEASE
    

    
      org.springframework
      spring-context
      5.1.9.RELEASE
    

    
      org.springframework
      spring-expression
      5.1.9.RELEASE
    

public class Student {

    private int id;
    private String name;

    public Student() {
    }

    public Student(int id, String name) {
        this.id = id;
        this.name = name;
    }

    @Override
    public String toString() {
        return "Student{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
    }

//    set、get  
}

public interface IDao {

//           
    public String getStuInfo();
}

public class DaoImpl implements IDao {

    private Student student;

    public DaoImpl() {
    }

    public DaoImpl(Student student) {
        this.student = student;
    }

    @Override
    public String getStuInfo() {
        return student.toString();
    }

    public Student getStudent() {
        return student;
    }

    public void setStudent(Student student) {
        this.student = student;
    }
}