Spring注入propertiesファイルまとめ

Springはpropertiesファイルを注入するための様々な方法を提供し,本稿では簡単なまとめを行う.
Springプロファイルへの導入
方式一
ラベルを通す

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tx="http://www.springframework.org/schema/tx" 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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">

    <context:property-placeholder location="classpath:mysql.properties" ignore-unresolvable="true"/>

    
    <bean abstract="true" name="parentDatasource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${ds1.jdbc.driverClassName}" />
        
        <property name="initialSize" value="1" />
        
        <property name="maxActive" value="100" />
        
        <property name="minIdle" value="20" />
        
        <property name="maxWait" value="30000" />
        
        
        <property name="validationQuery" value="SELECT 1" />
        <property name="testOnBorrow" value="true" />
        <property name="testOnReturn" value="true" />
        <property name="testWhileIdle" value="true" />
        
        <property name="timeBetweenEvictionRunsMillis" value="60000" />
        
        <property name="minEvictableIdleTimeMillis" value="25200000" />
        
        <property name="removeAbandoned" value="true" />
        
        <property name="removeAbandonedTimeout" value="1800" />
        
        <property name="logAbandoned" value="true" />
        
        
        <property name="filters" value="mergeStat" />
    bean>

    
    <bean name="dataSource1" init-method="init" destroy-method="close" parent="parentDatasource">
        <property name="url" value="${ds1.jdbc.url}" />
        <property name="username" value="${ds1.jdbc.username}" />
        <property name="password" value="${ds1.jdbc.password}" />
    bean>


    
    <bean name="dataSource2" init-method="init" destroy-method="close" parent="parentDatasource">
        <property name="url" value="${ds2.jdbc.url}" />
        <property name="username" value="${ds2.jdbc.username}" />
        <property name="password" value="${ds2.jdbc.password}" />
    bean>

    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource1" />
    bean>

    
    <tx:annotation-driven transaction-manager="transactionManager" />

beans>

方式2
に合格
1、mysql.properties

#
ds1.jdbc.driverClassName=com.mysql.jdbc.Driver
ds1.jdbc.url=jdbc:mysql://localhost:3306/process?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
ds1.jdbc.username=root
ds1.jdbc.password=root

ds2.jdbc.driverClassName=com.mysql.jdbc.Driver
ds2.jdbc.url=jdbc:mysql://localhost:3306/process?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
ds2.jdbc.username=root
ds2.jdbc.password=root

2、applicationContext.xml

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task" xmlns:util="http://www.springframework.org/schema/util" xmlns:jaxws="http://cxf.apache.org/jaxws"
       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.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd"
       default-lazy-init="false">

    <util:properties id="db" location="classpath:mysql.properties"/>


    <bean name="dataSource1" init-method="init" destroy-method="close" parent="parentDatasource">
        <property name="url" value="#{db['ds1.jdbc.url']}" />
        <property name="username" value="#{db['ds1.jdbc.username']}" />
        <property name="password" value="#{db['ds1.jdbc.password']}" />
    bean>
beans>

コードに注入
方式一
1、config.properties

name=ricky
age=27
password=root

2、applicationContext.xml

    <bean id="config"
          class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:config.propertiesvalue>
            list>
        property>
        
        <property name="fileEncoding" value="UTF-8">property>
    bean>

3、@Value注記を使う

package com.ricky.codelab.springmvc.domain;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

/**
 * ${DESCRIPTION}
 *
 * @author Ricky Fung
 * @create 2016-08-08 15:49
 */
@Component("userService")
public class UserServiceImpl implements IUserService {
    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Value("#{config[name]}")
    private String name;

    @Value("#{config[age]}")
    private Integer age;

    @Value("#{config[password]}")
    private String password;

    @Override
    public void login(String username){
        System.out.println("name:"+name+",age="+age+",password="+password);
    }
}