Spring：特殊数据类型的属性注入（基于配置文件）

该处提到的特殊数据类型指的是除了基础数据类型和String以外的其他常用的数据类型，如：List、Map、Set、以及pojo对象等。则我们创建的Person类定义为：

package bjtu.wellhold.testSpring;

import java.util.Arrays;

import java.util.List;

import java.util.Map;

import java.util.Properties;

import java.util.Set;

import org.springframework.stereotype.Repository;

//@Repository("person")

public class Person {

    private String name;

    private int age;

    private double money;

    private List<String> list;

    private Set<String> set;

    private Map<String,String> map;

    private String[] array;

    private Properties properties;

    private User user;  

    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;

    }

    public double getMoney() {

        return money;

    }

    public void setMoney(double money) {

        this.money = money;

    }

    public List<String> getList() {

        return list;

    }

    public void setList(List<String> list) {

        this.list = list;

    }

    public Set<String> getSet() {

        return set;

    }

    public void setSet(Set<String> set) {

        this.set = set;

    }

    public Map<String, String> getMap() {

        return map;

    }

    public void setMap(Map<String, String> map) {

        this.map = map;

    }

    public String[] getArray() {

        return array;

    }

    public void setArray(String[] array) {

        this.array = array;

    }

    public Properties getProperties() {

        return properties;

    }

    public void setProperties(Properties properties) {

        this.properties = properties;

    }

    public User getUser() {

        return user;

    }

    public void setUser(User user) {

        this.user = user;

    }

    @Override

    public String toString() {

        return "Person [name=" + name + ", age=" + age + ", money=" + money + ", list=" + list + ", set=" + set

                + ", map=" + map + ", array=" + Arrays.toString(array) + ", properties=" + properties + ", user=" + user

                + "]";

    }

}

因为还涉及到向我们的Person当中注入一个Pojo类，所以我们再定义一个Pojo类叫User：

package bjtu.wellhold.testSpring;

public class User {

    private int age;

    private String username;

    private String password;

    public int getAge() {

        return age;

    }

    public void setAge(int age) {

        this.age = age;

    }

    public String getUsername() {

        return username;

    }

    public void setUsername(String username) {

        this.username = username;

    }

    public String getPassword() {

        return password;

    }

    public void setPassword(String password) {

        this.password = password;

    }

    @Override

    public String toString() {

        return "User [age=" + age + ", username=" + username + ", password=" + password + "]";

    }

}

之后则需要到我们的配置文件当中去进行配置，配置文件如下：

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns:aop="http://www.springframework.org/schema/aop"

    xmlns:context="http://www.springframework.org/schema/context"

    xsi:schemaLocation="

       http://www.springframework.org/schema/beans

       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

       http://www.springframework.org/schema/aop

       http://www.springframework.org/schema/aop/spring-aop-3.0.xsd

       http://www.springframework.org/schema/context

       http://www.springframework.org/schema/context/spring-context-3.0.xsd">

    <!-- 对要注入的User类进行注册和通过Setter进行属性注入 -->

    <bean id="user" class="bjtu.wellhold.testSpring.User">

        <property name="username" value="wellhold"></property>

    </bean>

    <!-- 可以参考各个特殊数据类型是如何进行属性注入的 -->

    <bean id="person" class="bjtu.wellhold.testSpring.Person">

        <property name="name">

            <value>Tom</value>

        </property>

        <property name="age">

            <value>28</value>

        </property>

        <property name="money">

            <value>100.9</value>

        </property>

        <property name="list">

            <list>

                <value>shandong</value>

                <value>杭州</value>

                <value>xihu</value>

            </list>

        </property>

        <property name="set">

            <set>

                <value>13900</value>

                <value>13900</value>

                <value>13800</value>

            </set>

        </property>

        <property name="map">

            <map>

                <entry>

                    <key>

                        <value>key1</value>

                    </key>

                    <value>value1</value>

                </entry>

                <entry key="key2" value="value2">

                </entry>

            </map>

        </property>

        <property name="array">

            <list>

                <value>xiaoh</value>

                <value>xiaob</value>

            </list>

        </property>

        <property name="properties">

            <props>

                <prop key="pp1">pp1Value</prop>

                <prop key="pp2">pp2Value</prop>

            </props>

        </property>

        <property name="user">

            <ref bean="user"/>

        </property>

    </bean>  

</beans>

以上是通过配置文件的形式去进行特殊数据类型的属性注入的。

本文参考http://blog.csdn.net/niuniu20008/article/details/12559797的部分，并且通过自己尝试之后，攒写该文用于记录，以便今后使用。

巴特西

Spring：特殊数据类型的属性注入（基于配置文件）

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