spring 依赖注入

spring 依赖注入

依赖注入的方式：
1. setter注入
2. 构造器注入
3. 接口注入
4. p命名空间注入

集合的注入：
1.list
2.map
3.properties
4.array

applicationContext.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:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">

    <bean name="mysqlDao" class="com.kanbujian.daoImpl.MysqlDao"></bean>
    <bean name="oracleDao" class="com.kanbujian.daoImpl.OracleDao"></bean>

    <!-- setter注入 -->
    <bean name="houseService" class="com.kanbujian.service.HouseService">
        <property name="dbDao" ref="oracleDao"></property>
        <property name="name" value="李小龙"></property>
        <property name="password" value="Bruce Lee"></property>
        <property name="list">
            <list>
                <!-- list存放在对象 -->
                <ref bean="mysqlDao" />
                <value>王力宏</value>
                <value>陶喆</value>
                <value>潘玮柏</value>
                <value>林俊杰</value>
            </list>
        </property>
        <property name="map">
            <map>
                <entry>
                    <key>
                        <value>中國</value>
                    </key>
                    <ref bean="oracleDao" />
                </entry>
                <entry>
                    <key>
                        <value>美國</value>
                    </key>
                    <value>USA</value>
                </entry>
                <entry>
                    <key>
                        <value>英國</value>
                    </key>
                    <value>UK</value>
                </entry>
            </map>
        </property>

        <property name="properties">
            <props>

                <prop key="十一月的肖邦">夜曲</prop>
                <prop key="依然范特西">千里之外</prop>
                <prop key="葉惠美">晴天</prop>
            </props>
        </property>

        <property name="stringArray">
            <array>
                <value>ssh</value>
                <value>html</value>
                <value>ajax</value>
                <value>css</value>
            </array>
        </property>
    </bean>

    <!-- 构造器注入 -->
    <bean name="houseService2" class="com.kanbujian.service.HouseService">
        <constructor-arg ref="mysqlDao"></constructor-arg>
        <constructor-arg value="成龙"></constructor-arg>
        <constructor-arg value="Jack chen"></constructor-arg>
    </bean>

    <!-- P命名空间注入 -->
    <bean name="houseService3" class="com.kanbujian.service.HouseService"
        p:dbDao-ref="mysqlDao" p:name="李连杰" p:password="LianJie Lee">

    </bean>

</beans>

java文件

package com.kanbujian.service;

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

import com.kanbujian.dao.DbDAO;

public class HouseService {
    //对象
    private DbDAO dbDao;
    private String name;
    private String password;

    //集合
    private List list;
    private Map map;
    private Properties properties;
    private String[] stringArray;


    public String[] getStringArray() {
        return stringArray;
    }

    public void setStringArray(String[] stringArray) {
        this.stringArray = stringArray;
    }

    public List getList() {
        return list;
    }

    public void setList(List list) {
        this.list = list;
    }

    public Map getMap() {
        return map;
    }

    public void setMap(Map map) {
        this.map = map;
    }

    public Properties getProperties() {
        return properties;
    }

    public void setProperties(Properties properties) {
        this.properties = properties;
    }

    public HouseService() {

    }

    public HouseService( String name, String password) {

        this.name = name;
        this.password = password;
    }

    public HouseService(DbDAO dbDao, String name, String password) {
        super();
        this.dbDao = dbDao;
        this.name = name;
        this.password = password;
    }

    public void save(){
        dbDao.save();
    }

    public DbDAO getDbDao() {
        return dbDao;
    }
    public void setDbDao(DbDAO dbDao) {
        this.dbDao = dbDao;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }


}