spring框架 构造方法注入

在resources里面新建applicationContext.xml

配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">
    <!--构造方法注入-->
    <bean id="book1" class="com.ssz.entity.Book">
        <constructor-arg name="name" value="张三三"/>
    </bean>
    <bean id="book2" class="com.ssz.entity.Book">
        <constructor-arg name="id" value="50"/>
        <constructor-arg name="name" value="李思思"/>
    </bean>
    <!--setter方法注入-->
    <bean id="book3" class="com.ssz.entity.Book" scope="prototype">
        <property name="id" value="100"/>
        <property name="name" value="王五五"/>
        <property name="price" value="30"/>
    </bean>
    <!--setter方法注入+ 集合setter方法注入-->
    <bean id="book4" class="com.ssz.entity.Book" scope="prototype">
        <property name="id" value="200"/>
        <property name="name" value="赵六六"/>
        <property name="price" value="40.08"/>
        <property name="address">
            <array>
                <value>郑州市</value>
                <value>开封市</value>
                <value>南阳市</value>
                <value>洛阳市</value>
            </array>
        </property>
    </bean>

    <!--User类-->
    <bean id="user" class="com.ssz.entity.User" destroy-method="close" init-method="init" >
        <property name="id" value="001"/>
        <property name="name" value="王九九"/>
        <property name="age" value="26"/>
        <property name="address" value="河南省郑州市"/>
    </bean>

    <bean id="user2" class="com.ssz.entity.User">
        <property name="id" value="002"/>
        <property name="name" value="孙十十"/>
        <property name="age" value="33"/>
        <property name="address" value="河南省开封市"/>
    </bean>

    <!--setter方法注入+ array注入-->
    <bean id="book5" class="com.ssz.entity.Book" scope="prototype">
        <property name="id" value="300"/>
        <property name="name" value="孙七七"/>
        <property name="price" value="60"/>
        <property name="address">
            <array>
                <value>郑州市</value>
                <value>开封市</value>
                <value>南阳市</value>
                <value>洛阳市</value>
            </array>
        </property>
    </bean>

    <!--setter方法注入+ array注入 + list + map + set + Properties 集合-->
    <bean id="book6" class="com.ssz.entity.Book">
        <property name="id" value="400"/>
        <property name="name" value="钱八八"/>
        <property name="price" value="70"/>
        <property name="address">
            <!--array-->
            <array>
                <value>郑州市</value>
                <value>开封市</value>
                <value>南阳市</value>
                <value>洛阳市</value>
            </array>
        </property>

        <!--list-->
        <property name="list">
            <list>
                <value>10</value>
                <value>100</value>
                <value>1000</value>
            </list>
        </property>
        <property name="user" ref="user2">
        </property>

        <!--map-->
        <property name="map">
            <map>
                <entry key="u1" value-ref="user"/>
                <entry key="u2" value-ref="user"/>
            </map>
        </property>

        <!--set-->
        <property name="set">
            <set>
                <value>java</value>
                <value>C语言</value>
                <value>C++</value>
                <value>PHP</value>
            </set>
        </property>

        <!--Properties 集合-->
        <property name="pro">
            <props>
                <prop key="k1">pt1</prop>
                <prop key="k2">pt1</prop>
                <prop key="k3">pt1</prop>
                <prop key="k4">pt1</prop>
            </props>
        </property>
    </bean>

</beans>

lombok依赖

<dependency>
     <groupId>org.projectlombok</groupId>
     <artifactId>lombok</artifactId>
     <version>1.16.18</version>
     <scope>provided</scope>
</dependency>

创建测试类

package com.ssz;

import com.ssz.entity.Book;
import org.junit.Test;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import java.util.List;

public class Demo {
    @Test
    public void tt(){
        BeanFactory bf=new ClassPathXmlApplicationContext("applicationContext.xml");//建立bean工厂
        //Book book1=bf.getBean("book2",Book.class);
//        Book book1=bf.getBean(Book.class);
        //Book book2=bf.getBean("book3",Book.class);
        //Book book2=bf.getBean(Book.class);
//        Book b=bf.getBean("book",Book.class);
//        book.setId(100);
//        book.setName("C语言入门");
        //System.out.println(book1.getPrice());
        //System.out.println(book2);
        //System.out.println(book1==book2);
//        System.out.println(book1);
//        Book bk1=bf.getBean("book4",Book.class);
//        Book bk2=bf.getBean("book4",Book.class);
//        Book bk3=bf.getBean("book4",Book.class);
//        System.out.println(bk1==bk2);
//        System.out.println(bk1==bk3);
//        System.out.println(bk2==bk3);
//        Book book1=bf.getBean("book6",Book.class);
//        System.out.println(book1);
//        for (String addr:book1.getAddress()){
//            System.out.println(addr);
//        }
        Book book=bf.getBean("book5",Book.class);
        System.out.println(book);
        }
    @Test
    public void bb(){
//        BeanFactory bf1=new ClassPathXmlApplicationContext("applicationContext.xml");
        ClassPathXmlApplicationContext bf1=new ClassPathXmlApplicationContext("applicationContext.xml");
        Book bk=bf1.getBean("book6",Book.class);
        System.out.println(bk.getMap());
        System.out.println(bk.getPro().getProperty("k1"));
        for (Integer i: bk.getList()){
            System.out.println(i);
        }
        bf1.close();
    }
}