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本文主要介绍了spring配置文件的配置:set方法,constructor构造函数注入各种类型的属性值,bean的继承,自动装配autowire以及通过spring提供的特殊bean进行了分散配置.
首先,配置文件beans.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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"
default-autowire="no">
<!-- <context:property-placeholder location="classpath:com/assembly/db.properties,classpath:com/assembly/db1.properties"/> -->
<bean id="personService" class="com.assembly.PersonService" >
<property name="name" >
<value>siege</value>
</property>
<property name="bookList">
<list>
<ref bean="book1"/>
<ref bean="book1"/>
<ref bean="book2"/>
<ref bean="book2"/>
</list>
</property>
<property name="bookSet">
<set>
<ref bean="book1"/>
<ref bean="book1"/>
<ref bean="book2"/>
<ref bean="book2"/>
</set>
</property>
<property name="map">
<map>
<entry key="11" value-ref="book1"/>
<entry key="11" value-ref="book1"/>
<entry key="22" value-ref="book2"/>
<entry key="22" value-ref="book2"/>
</map>
</property>
<property name="pro">
<props>
<prop key="001" >hello</prop>
<prop key="002">world</prop>
</props>
</property>
</bean>
<bean id="book1" class="com.assembly.Book">
<property name="title">
<value>CSS</value>
</property>
<property name="id">
<value>1</value>
</property>
</bean>
<bean id="book2" class="com.assembly.Book">
<property name="title">
<value>JavaScript</value>
</property>
<property name="id">
<value>2</value>
</property>
</bean>
<bean id="student" parent="personService" class="com.assembly.Student">
<property name="score">
<value>100</value>
</property>
</bean>
<!-- 以下是通过构造函数进行属性注入 -->
<bean id="worker" class="com.assembly.Worker">
<constructor-arg index="0" type="java.lang.String" value="cage"/>
<constructor-arg index="1" type="int" value="24"/>
</bean>
<!--以下是关于自动装配的演示 -->
<bean id="master" class="com.assembly.Master" autowire="byName">
<!--byType-->
<!--constructor-->
<!--autodetect 会采用byType或constructor装配方式-->
<!--default default值即为本文件头部的default-autowire的值-->
<property name="name" value="siege"/>
</bean>
<bean id="dog" class="com.assembly.Dog">
<property name="name" value="小黄"/>
<property name="age" value="3"/>
</bean>
<!--以下是关于spring容器提供的特殊bean来完成分散配置 或者通过本文件头部context:property-placeholder进行配置(已注释部分)-->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>com/assembly/db.properties</value>
<value>com/assembly/db1.properties</value>
</list>
</property>
</bean>
<bean id="dbutil" class="com.assembly.DBUtil">
<property name="driver" value="${driver}"/>
<property name="name" value="${name}"/>
<property name="pwd" value="${pwd}"/>
<property name="url" value="${url}"/>
</bean>
<bean id="dbutil1" class="com.assembly.DBUtil">
<property name="driver" value="${user.driver}"/>
<property name="name" value="${user.name}"/>
<property name="pwd" value="${user.pwd}"/>
<property name="url" value="${user.url}"/>
</bean>
</beans>
Book.java
package com.assembly;
public class Book {
private String title;
private int id;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
@Override
public String toString() {
return "bookId:"+this.id+",bookTitle:"+this.title;
}
}
DBUtil.java
package com.assembly;
public class DBUtil {
private String driver;
private String name;
private String pwd;
private String url;
public String getDriver() {
return driver;
}
public void setDriver(String driver) {
this.driver = driver;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
}
package com.assembly;
public class Dog {
private String name;
private int age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
package com.assembly;
public class Master {
private String name;
private Dog dog;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Dog getDog() {
return dog;
}
public void setDog(Dog dog) {
this.dog = dog;
}
}
package com.assembly;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
public class PersonService{
private String name;
private List<Book> bookList;
private Set<Book> bookSet;
private Map<String,Book> map;
private Properties pro;
public Properties getPro() {
return pro;
}
public void setPro(Properties pro) {
this.pro = pro;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<Book> getBookList() {
return bookList;
}
public void setBookList(List<Book> bookList) {
this.bookList = bookList;
}
public Set<Book> getBookSet() {
return bookSet;
}
public void setBookSet(Set<Book> bookSet) {
this.bookSet = bookSet;
}
public Map<String, Book> getMap() {
return map;
}
public void setMap(Map<String, Book> map) {
this.map = map;
}
}
package com.assembly;
public class Student extends PersonService {
private int score;
public int getScore() {
return score;
}
public void setScore(int score) {
this.score = score;
}
}
Worker.java
package com.assembly;
public class Worker {
private String name;
private int age;
public String getName() {
return name;
}
public Worker(String name, int age) {
this.name = name;
this.age = age;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public Worker() {
}
}
driver=driver name=name pwd=pwd url=url
user.driver=driver1 user.name=name1 user.pwd=pwd1 user.url=url1
package com.assembly;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Test {
public static void main(String[] args) {
ApplicationContext ac=new ClassPathXmlApplicationContext("com/assembly/beans.xml");
PersonService p=(PersonService) ac.getBean("personService");
Student student=(Student) ac.getBean("student");
Worker worker= (Worker) ac.getBean("worker");
Master master=(Master) ac.getBean("master");
DBUtil dbutil=(DBUtil) ac.getBean("dbutil1");
String name=p.getName();
System.out.println(name);
List<Book> bookList=p.getBookList();
Set<Book> bookSet=p.getBookSet();
Map<String,Book> map=p.getMap();
Properties pro=p.getPro();
System.out.println("********List******");
for(Book book:bookList){
System.out.println("bookId:"+book.getId()+" bookTitle:"+book.getTitle());
}
System.out.println("********Set******");
for(Book book:bookSet){
System.out.println("bookId:"+book.getId()+" bookTitle:"+book.getTitle());
}
System.out.println("********Map******");
for(Entry<String, Book> book:map.entrySet()){
System.out.println("bookId:"+book.getValue().getId()+" bookTitle:"+book.getValue().getTitle());
}
System.out.println("********Properties******");
for(Entry<Object,Object> pp:pro.entrySet()){
System.out.println("key:"+pp.getKey()+" value:"+pp.getValue());
}
System.out.println("********关于bean的继承*********");
System.out.println("score:"+student.getScore()+" name:"+student.getName()+"\r\n"+"list:"+student.getBookList()+"\r\n"+
"set:"+student.getBookSet()+"\r\n"+"map:"+student.getMap()+"\r\n"+"properties:"+student.getPro());
System.out.println("*********通过构造函数注入属性值********");
System.out.println("name:"+worker.getAge()+" age:"+worker.getName());
System.out.println("********关于自动装配autowire");
System.out.println("masterName:"+master.getName()+" dogName:"+master.getDog().getName()+" dogAge:"+master.getDog().getAge());
System.out.println("*******关于分散配置*********");
System.out.println("driver:"+dbutil.getDriver()+"\r\nname:"+dbutil.getName()+"\r\npwd:"+dbutil.getPwd()+"\r\nurl:"+dbutil.getUrl());
}
}
siege
********List******
bookId:1 bookTitle:CSS
bookId:1 bookTitle:CSS
bookId:2 bookTitle:JavaScript
bookId:2 bookTitle:JavaScript
********Set******
bookId:1 bookTitle:CSS
bookId:2 bookTitle:JavaScript
********Map******
bookId:1 bookTitle:CSS
bookId:2 bookTitle:JavaScript
********Properties******
key:002 value:world
key:001 value:hello
********关于bean的继承*********
score:100 name:siege
list:[bookId:1,bookTitle:CSS, bookId:1,bookTitle:CSS, bookId:2,bookTitle:JavaScript, bookId:2,bookTitle:JavaScript]
set:[bookId:1,bookTitle:CSS, bookId:2,bookTitle:JavaScript]
map:{11=bookId:1,bookTitle:CSS, 22=bookId:2,bookTitle:JavaScript}
properties:{002=world, 001=hello}
*********通过构造函数注入属性值********
name:24 age:cage
********关于自动装配autowire
masterName:siege dogName:小黄 dogAge:3
*******关于分散配置*********
driver:driver1
name:name1
pwd:pwd1
url:url1
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原文地址：http://blog.csdn.net/u010999240/article/details/43367991
