springIoc创建对象之有参构造器

User.java

public class User {

	private int id;
	private String name;
	
	public User() {
		super();
		System.out.println("------User对象创建【无参数构造器】------");
	}

	public User(int id, String name) {
		System.out.println("-----User对象创建【带参数构造器】--------");
		this.id = id;
		this.name = name;
	}


	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;
	}
	
	
	@Override
	public String toString() {
		return "User [id=" + id + ", name=" + name + "]";
	}


	public void init_user() {
		System.out.println("创建对象之后，初始化");
	}
	public void destroy_user() {
		System.out.println("IOC容器销毁，user对象回收!");
	}
}

bean.xml

App.java

public class App {

	// 测试：对象创建
	@Test
	public void testIOC() throws Exception {
		// 创建IOC容器对象
		ApplicationContext ac = new ClassPathXmlApplicationContext("cn/itcast/b_create_obj/bean.xml");
		// 获取容器中的对象
		User user = (User) ac.getBean("user2");
		
		System.out.println(user);
	}
}	

输出：

-----User对象创建【带参数构造器】--------
User [id=100, name=Jack]