Spring配制的一些细节:
1. 属性中特殊字符的处理
2. 配制bean之间的关联 --ref用法
3. 内部bean的配制
4. 级联属性赋值
5. null值的定义
6.配制list集合
7.Map集合的配制
8.配制Properties属性值
9.配置单例的集合bean,以供多个bean进行引用，要导入util命名空间
10.导入p命名空间
要用到的java类：
package com.spring.config;
public class Manager {
private String name;
private String address;
private double height;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public double getHeight() {
return height;
}
public void setHeight(double height) {
this.height = height;
}
@Override
public String toString() {
return "Manager [name=" + name + ", address=" + address + ", height=" + height + "]";
}
}
package com.spring.config;
public class Department {
private String name;
private Manager manager;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Manager getManager() {
return manager;
}
public void setManager(Manager person) {
this.manager = person;
}
@Override
public String toString() {
return "Department [name=" + name + ", manager=" + manager + "]";
}
}
package com.spring.config;
import java.util.List;
import java.util.Map;
public class Company {
private String name;
private List<Department> departments;
private Map<String,Department> mainDepartent;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<Department> getDepartment() {
return departments;
}
public void setDepartments(List<Department> departments) {
this.departments = departments;
}
public Map<String, Department> getMainDepartent() {
return mainDepartent;
}
public void setMainDepartent(Map<String, Department> mainDepartent) {
this.mainDepartent = mainDepartent;
}
public List<Department> getDepartments() {
return departments;
}
@Override
public String toString() {
return "Company [name=" + name + ", departments=" + departments + ", mainDepartent=" + mainDepartent + "]";
}
}
package com.spring.config;
import java.util.Properties;
public class DataSource {
private Properties properties;
public Properties getProperties() {
return properties;
}
public void setProperties(Properties properties) {
this.properties = properties;
}
@Override
public String toString() {
return "DataSource [properties=" + properties + "]";
}
}
package com.spring.config;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Main {
public static void main(String[] args) {
ApplicationContext ctx = new ClassPathXmlApplicationContext("application.xml");
// 1.属性中有特殊字符
Manager p = (Manager) ctx.getBean("manager");
System.out.println(p);
// 2. bean之间的关系
Department de = (Department) ctx.getBean("department");
System.out.println(de);
// 3.内部bean
Department de1 = (Department) ctx.getBean("department1");
System.out.println(de1);
// 4.级联属性
Department de2 = (Department) ctx.getBean("department2");
System.out.println(de2);
// 5.null值的定义
Department de3 = (Department) ctx.getBean("department3");
System.out.println(de3);
// 6.配制list集合
Company company = (Company) ctx.getBean("company");
System.out.println(company);
// 7.Map集合的配制
Company company1 = (Company) ctx.getBean("company1");
System.out.println(company1);
// 8.配制Properties属性值
DataSource dataSource = (DataSource) ctx.getBean("dataSource");
System.out.println(dataSource + "\t\n>>>" + dataSource.getProperties().get("pwd"));
// 9.配置单例的集合bean,以供多个bean进行引用，要导入util命名空间
Company company2 = (Company) ctx.getBean("company2");
System.out.println(company2);
// 10.导入p命名空间
Company company3 = (Company) ctx.getBean("company3");
System.out.println(company3);
}
}
spring-xml
<?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:util="http://www.springframework.org/schema/util" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd"> <!-- 1. 有特殊字符时，可以直接转义。 或者用value属性加<![CDATA[] 解决 --> <bean id="manager" class="com.spring.config.Manager"> <!-- <property name="address" value="China>SH"></property> --> <property name="address"> <value><![CDATA[China>SH]]></value> </property> <property name="name" value="matt"></property> <property name="height" value="175"></property> </bean> <bean id="department" class="com.spring.config.Department"> <!-- 2.ref可以引入指定的bean --> <property name="manager" ref="manager"></property> <property name="name" value="CDC"></property> </bean> <!--3. 内部bean --> <bean id="department1" class="com.spring.config.Department"> <property value="CNN" name="name"></property> <property name="manager"> <bean id="manager" class="com.spring.config.Manager"> <property name="address"> <value><![CDATA[China>HZ]]></value> </property> <property name="name" value="Rose"></property> <property name="height" value="185"></property> </bean> </property> </bean> <!-- 4.定义级联属性 --> <bean id="department2" class="com.spring.config.Department"> <property name="manager" ref="manager" /> <property name="name" value="CDC" /> <property name="manager.height" value="180" /> </bean> <!-- 5.null值的定义 --> <bean id="department3" class="com.spring.config.Department"> <property name="manager"> <null /> </property> <property name="name" value="CMC" /> </bean> <!-- 6.配置list集合 --> <bean id="company" class="com.spring.config.Company"> <property name="name" value="WG"></property> <property name="departments"> <list> <ref bean="department" /> <ref bean="department1" /> <ref bean="department2" /> </list> </property> <property name="mainDepartent"> <null /> </property> </bean> <!-- 7.配置Map集合 --> <bean id="company1" class="com.spring.config.Company"> <property name="name" value="WG1"></property> <property name="departments"> <null /> </property> <property name="mainDepartent"> <map> <entry key="AAA" value-ref="department" /> </map> </property> </bean> <!-- 8.配置Properties属性值 --> <bean id="dataSource" class="com.spring.config.DataSource"> <property name="properties"> <props> <prop key="user">root</prop> <prop key="pwd">******</prop> <prop key="jdbcUrl">jdbc:mysql:///mydata</prop> <prop key="driverClass">com.mysql.jdbc.Driver</prop> </props> </property> </bean> <!-- 9.配置单例的集合bean,以供多个bean进行引用，要导入util命名空间 --> <util:list id="departments"> <ref bean="department1" /> <ref bean="department2" /> </util:list> <bean id="company2" class="com.spring.config.Company"> <property name="name" value="WG1"></property> <property name="departments" ref="departments"></property> <property name="mainDepartent"> <map> <entry key="AAA" value-ref="department" /> </map> </property> </bean> <util:map id="mainDe"> <entry key="AAA" value-ref="department" /> </util:map> <!-- 10. 加入p命名空间，要导入p命名空间 --> <bean id="company3" class="com.spring.config.Company" p:name="WG3" p:departments-ref="departments" p:mainDepartent-ref="mainDe" /> </beans>