spring IoC练习

spring IoC练习包括两部分：1.IoC/DI学习 2.AOP

IoC容器的作用：管理所有的bean及其相互间的依赖关系

配置有两种格式：.xml和注解

反射：（1）概念：主要是指程序可以访问、检测和修改它本身状态或行为的一种能力（2.）反射解析

注入方式：(1.)构造器注入用<constructor-arg> (2.) setter注入用property

spring常用的注解：
1、@Controller
2、@RequestMapping
3、@Resource和@Autowired
4、@ModelAttribute和 @SessionAttributes
5、@PathVariable
6、@requestParam
7、@ResponseBody
8、@Component
9、@Repository
10.@Data

依赖注入的例子

书P42到44

IoC综合练习：Boss ,Car ,Meeting

Boss类

package com.spring;
import java.util.List;
public class Boss {
private String name;
private String company;
private Car car;
private List<String> hobbys;
public Boss() {
}
public Boss(String name, String company, Car car, List<String> hobbys) {
this.name = name;
this.company = company;
this.car = car;
this.hobbys = hobbys;
}
public String getName() {
return name;
}

public void setName(String name) {
    this.name = name;
}

public String getCompany() {
    return company;
}

public void setCompany(String company) {
    this.company = company;
}

public Car getCar() {
    return car;
}
public void setCar(Car car) {
    this.car = car;
}
public List<String> getHobbys() {
    return hobbys;
}
public void setHobbys(List<String> hobbys) {
    this.hobbys = hobbys;
}
@Override
public String toString() {
    return "Boss{" +
            "name='" + name + '\'' +
            ", company='" + company + '\'' +
            ", car=" + car +
            ", hobbys=" + hobbys +
            '}';
}

}

Car类

package com.spring;

public class Car {
private String brand;
private String color;
private String parameer;

public Car(String brand, String color, String parameer) {
    this.brand = brand;
    this.color = color;
    this.parameer = parameer;
}

public Car() {
}

public String getBrand() {
    return brand;
}

public void setBrand(String brand) {
    this.brand = brand;
}

public String getColor() {
    return color;
}

public void setColor(String color) {
    this.color = color;
}

public String getParameer() {
    return parameer;
}

public void setParameer(String parameer) {
    this.parameer = parameer;
}

@Override
public String toString() {
    return "Car{" +
            "brand='" + brand + '\'' +
            ", color='" + color + '\'' +
            ", parameer='" + parameer + '\'' +
            '}';
}

}

Meeting类

package com.spring;

import java.util.List;

public class Meeting {
private String theme;
private List<Boss> Bosses;

public Meeting() {
}

public String getTheme() {
    return theme;
}

@Override
public String toString() {
    return "Meeting{" +
            "theme='" + theme + '\'' +
            ", Bosses=" + Bosses +
            '}';
}

public List<Boss> getBosses() {
    return Bosses;
}

public void setBosses(List<Boss> bosses) {
    Bosses = bosses;
}

public void setTheme(String theme) {
    this.theme = theme;
}

public Meeting(String theme, List<Boss> bosses) {
    this.theme = theme;
    Bosses = bosses;
}

}

配置

<bean id="car1" class="com.spring.Car">
<constructor-arg name="brand" value="奔腾"/>
<constructor-arg name="color" value="blue"/>
<constructor-arg name="parameer" value="2.0"/>
</bean>

<bean id="car2" class="com.spring.Car">
    <constructor-arg name="brand" value="奥迪"/>
    <constructor-arg name="color" value="black"/>
    <constructor-arg name="parameer" value="1.8T"/>
</bean>

<bean id="car3" class="com.spring.Car">
    <constructor-arg name="brand" value="大众"/>
    <constructor-arg name="color" value="red"/>
    <constructor-arg name="parameer" value="8.5"/>
</bean>

<bean id="bosses1" class="com.spring.Boss">
    <property name="name" value="杨幂"/>
    <property name="company" value="嘉年华"/>
    <property name="car" ref="car1"/>
    <property name="hobbys">
        <list>
        <value>baskball</value>
        <value>football</value>
        </list>
    </property>
</bean>

<bean id="bosses2" class="com.spring.Boss">
    <property name="name" value="马云"/>
    <property name="company" value="阿里巴巴"/>
    <property name="car" ref="car2"/>
    <property name="hobbys">
        <list>
        <value>跑步</value>
        <value>打球</value>
        </list>
    </property>
</bean>

<bean id="bosses3" class="com.spring.Boss">
    <property name="name" value="朱一龙"/>
    <property name="company" value="办公室"/>
    <property name="car" ref="car3"/>
    <property name="hobbys">
        <list>
            <value>跑步</value>
            <value>羽毛球</value>
        </list>
    </property>
</bean>
<bean id="meeting" class="com.spring.Meeting">
    <property name="theme" value="时间"/>
    <property name="Bosses">
        <list>
        <ref bean="bosses1"/>
        <ref bean="bosses2"/>
        <ref bean="bosses3"/>
        </list>
    </property>
</bean>
<bean id="max" class="com.spring.Max">
    <constructor-arg name="a" value="5"/>
    <constructor-arg name="b" value="3"/>
</bean>
<bean id="userLogin" class="experise.UserLogin">
    <constructor-arg name="user" ref="User"></constructor-arg>
</bean>
<bean id="User" class="experise.User">
    <constructor-arg name="account" value="admin"/>
    <constructor-arg name="password" value="111"/>
</bean>

主类

w.png

运行结果

v.png