12、(知识篇)Spring使用xml配置bean01

//Spring IOC - Inversion of Control（控制反轉）
//DI Dependency Injection 依賴注入
//XML版表現形式

//1、property形式  ：<property name="equirementNaame" value="盔甲"></property>
//2、constructor形式：<constructor-arg name="attack" value="10000"></constructor-arg>
//3、p形式（需要引入命名空間） <bean id="skill3" class="com.spring.beans.Skill" p:name="劍擊" p:attack="7000">
//4、特殊字符的處理（CDATA）<property name="sex" ><value><![CDATA[男]]></value></property>
//5、自動裝配 bean設置自動裝配autowire  <bean id="person" class="com.spring.beans.Person" autowire="byType"/>
//6、作用于Scope 默認singleton <bean id="person" class="com.spring.beans.Person" scope="singleton">
//7、讀取外部文件（如讀取數據源）
// 引入 <context:property-placeholder location="classpath:database.properties"/>
// 然後使用${xxx}(類似EL)  <property name="driverClass" value="${driverclass}"></property>
//8、SpringEL 使用#{} 可以運算/調用靜態方法 <property name="field1" value="#{'field1'}"></property>
//9、list、map、Properties的使用
/*<list>
<ref bean="skill"/>
<ref bean="skill2"/>
<ref bean="skill3"/>
<bean class="com.spring.beans.Skill">
<property name="name" value="天賦技能"></property>
<property name="attack" value="20000"></property>
</bean>
</list>

*/

//测试类

package com.spring.test;

import javax.sql.DataSource;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.spring.beans.Equirement;
import com.spring.beans.Person;
import com.spring.beans.Skill;
import com.spring.beans.SpringEL;

public class Test {
public static void main(String[] args) {
//Spring IOC - Inversion of Control（控制反轉）
//DI Dependency Injection 依賴注入
//XML版表現形式

//1、property形式  ：<property name="equirementNaame" value="盔甲"></property>
//2、constructor形式：<constructor-arg name="attack" value="10000"></constructor-arg>
//3、p形式（需要引入命名空間） <bean id="skill3" class="com.spring.beans.Skill" p:name="劍擊" p:attack="7000">
//4、特殊字符的處理（CDATA）<property name="sex" ><value><![CDATA[男]]></value></property>
//5、自動裝配 bean設置自動裝配autowire  <bean id="person" class="com.spring.beans.Person" autowire="byType"/>
//6、作用于Scope 默認singleton <bean id="person" class="com.spring.beans.Person" scope="singleton">
//7、讀取外部文件（如讀取數據源）
// 引入 <context:property-placeholder location="classpath:database.properties"/>
// 然後使用${xxx}(類似EL)  <property name="driverClass" value="${driverclass}"></property>
//8、SpringEL 使用#{} 可以運算/調用靜態方法 <property name="field1" value="#{'field1'}"></property>
//9、list、map、Properties的使用
/*<list>
<ref bean="skill"/>
<ref bean="skill2"/>
<ref bean="skill3"/>
<bean class="com.spring.beans.Skill">
<property name="name" value="天賦技能"></property>
<property name="attack" value="20000"></property>
</bean>
</list>

*/

ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");

// 初始化裝備
Equirement equirement = (Equirement) ctx.getBean("equirement");
System.out.println(equirement);

// 初始化技能1
Skill skill = (Skill) ctx.getBean("skill");
System.out.println(skill);

// 初始化技能2
Skill skill2 = (Skill) ctx.getBean("skill2");
System.out.println(skill2);

//人物
Person person = ctx.getBean(Person.class);
System.out.println(person);

DataSource ds = (DataSource) ctx.getBean("db");
System.out.println(ds);

SpringEL  sprintel = (SpringEL) ctx.getBean("el");
System.out.println(sprintel);

}
}

bean部分：

Person类
package com.spring.beans;

import java.util.List;
import java.util.Map;

public class Person {
private String name;
private String sex;
private Equirement equirement;
private List<Skill> skills;
private Map<String,Integer> items;
public Person() {
super();
System.out.println("人物正在初始化...");
// TODO Auto-generated constructor stub
}
public Person(String name, String sex, Equirement equirement, List<Skill> skills, Map<String, Integer> items) {
super();
this.name = name;
this.sex = sex;
this.equirement = equirement;
this.skills = skills;
this.items = items;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public Equirement getEquirement() {
return equirement;
}
public void setEquirement(Equirement equirement) {
this.equirement = equirement;
}
public List<Skill> getSkills() {
return skills;
}
public void setSkills(List<Skill> skills) {
this.skills = skills;
}
public Map<String, Integer> getItems() {
return items;
}
public void setItems(Map<String, Integer> items) {
this.items = items;
}
@Override
public String toString() {
return "Person [name=" + name + ", sex=" + sex + ", equirement=" + equirement + ", skills=" + skills
+ ", items=" + items + "]";
}

}

//Equirement装备类
package com.spring.beans;

public class Equirement {
private String equirementNaame;
private int defense;
public Equirement() {
super();
System.out.println("裝備正在初始化...");
// TODO Auto-generated constructor stub
}
public Equirement(String equirementNaame, int defense) {
super();
this.equirementNaame = equirementNaame;
this.defense = defense;
}
public String getEquirementNaame() {
return equirementNaame;
}
public void setEquirementNaame(String equirementNaame) {
this.equirementNaame = equirementNaame;
}
public int getDefense() {
return defense;
}
public void setDefense(int defense) {
this.defense = defense;
}
@Override
public String toString() {
return "Equirement [equirementNaame=" + equirementNaame + ", defense=" + defense + "]";
}

}

//技能类
package com.spring.beans;

public class Skill {
private String name;
private int attack;

public Skill() {
super();
System.out.println("技能正在初始化...");
// TODO Auto-generated constructor stub
}

public Skill(String name, int attack) {
super();
System.out.println("技能正在初始化帶參數...");
this.name = name;
this.attack = attack;
}

public String getName() {
return name;
}

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

public int getAttack() {
return attack;
}

public void setAttack(int attack) {
this.attack = attack;
}

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

}

SpringEL类
package com.spring.beans;

public class SpringEL {
private String field1;
private int field2;
private String field3;
private String field4;
private boolean field5;

public SpringEL() {
super();
// TODO Auto-generated constructor stub
}

public SpringEL(String field1, int field2, String field3, String field4, boolean field5) {
super();
this.field1 = field1;
this.field2 = field2;
this.field3 = field3;
this.field4 = field4;
this.field5 = field5;
}

public String getField1() {
return field1;
}

public void setField1(String field1) {
this.field1 = field1;
}

public int getField2() {
return field2;
}

public void setField2(int field2) {
this.field2 = field2;
}

public String getField3() {
return field3;
}

public void setField3(String field3) {
this.field3 = field3;
}

public String getField4() {
return field4;
}

public void setField4(String field4) {
this.field4 = field4;
}

public boolean isField5() {
return field5;
}

public void setField5(boolean field5) {
this.field5 = field5;
}

@Override
public String toString() {
return "SpringEL [field1=" + field1 + ", field2=" + field2 + ", field3=" + field3 + ", field4=" + field4
+ ", field5=" + field5 + "]";
}

}

applicationContext.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd"> 
<!-- 裝備類 -->
<bean id="equirement" class="com.spring.beans.Equirement">
<property name="equirementNaame" value="盔甲"></property>
<property name="defense" value="5000"></property>
</bean>

<!-- 技能 1-->
<bean id="skill" class="com.spring.beans.Skill">
<constructor-arg name="attack" value="10000"></constructor-arg>
<constructor-arg name="name" value="一拳"></constructor-arg>
</bean>

<!-- 技能 2-->
<bean id="skill2" class="com.spring.beans.Skill">
<property name="name" value="普通攻擊"></property>
<property name="attack" value="5000"></property>
</bean>

<!-- 技能3 -->
<bean id="skill3" class="com.spring.beans.Skill" p:name="劍擊" p:attack="7000">
</bean>

<!-- 物品 -->
<util:map id="items">
<entry key="山草頭藥" value="500"></entry>
<entry key="回氣丸" value="300"></entry>
</util:map>

<!-- 角色 -->
<bean id="person" class="com.spring.beans.Person" autowire="byType" scope="prototype">
<property name="name" value="超人"></property>
<property name="sex" >
<value><![CDATA[男]]></value>
</property>
<!-- <property name="equirement" ref="equirement"></property> -->
<property name="skills">
<list>
<ref bean="skill"/>
<ref bean="skill2"/>
<ref bean="skill3"/>
<bean class="com.spring.beans.Skill">
<property name="name" value="天賦技能"></property>
<property name="attack" value="20000"></property>
</bean>
</list>
</property>
<property name="items" ref="items"></property>
</bean>

<!-- 引用外部文件 -->
<context:property-placeholder location="classpath:database.properties"/>
<bean id="db" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${driverclass}"></property>
<property name="jdbcUrl" value="${jdbcurl}"></property>
<property name="user" value="${username}"></property>
<property name="password" value="${password}"></property>
</bean>

<!-- SpringEL -->
<bean id="el" class="com.spring.beans.SpringEL" >
<property name="field1" value="#{'field1'}"></property>
<property name="field2" value="#{1 + 10}"></property>
<property name="field3" value="#{person.name}"></property>
<property name="field4" value="#{T(java.lang.Math).PI}"></property>
<property name="field5" value="#{1>0?true:false}"></property>
</bean>
</beans>