spring 注入例子

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<bean id="student" class="cn.sxt.vo.Student">
<property name="name" value="张三丰"></property>
<property name="addr" ref="addr"></property>
<property name="books">
<array>
<value>傲慢与偏见</value>
<value>仲夏夜之梦</value>
<value>雾都孤儿</value>
</array>
</property>
<property name="hobbies">
<list>
<value>羽毛球</value>
<value>乒乓球</value>
<value>玻璃球</value>
<value>排球</value>
</list>
</property>
<property name="cards">
<map>
<entry key="中国银行" value="1545615345415"></entry>
<entry>
<key><value>农业银行</value></key>
<value>54654861231543</value>
</entry>
</map>
</property>
<property name="games">
<set>
<value>LOL</value>
<value>dota</value>
<value>cs</value>
<value>dnf</value>
<value>cf</value>

</set>
</property>
<property name="wife"><null/></property>
<property name="info">
<props>
<prop key="学号">2015534001</prop>
<prop key="sex">男</prop>
<prop key="name">张三</prop>
</props>
</property>
</bean>

<profiles>
<profile>
<id>development</id>
<properties>
<profiles.active>development</profiles.active>
<deploy.url>http://host:port/manager/text</deploy.url>
</properties>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
</profile>
<profile>
<id>test</id>
<properties>
<profiles.active>test</profiles.active>
<deploy.url>http://host:port/manager/text</deploy.url>
</properties>
</profile>
<profile>
<id>production</id>
<properties>
<profiles.active>production</profiles.active>
<deploy.url>http://host:port/manager/text</deploy.url>
</properties>
</profile>
</profiles>

profile标签的工作流程

1，一个环境配置一个profile标签，在里面配置环境信息

下面例子有本地开发环境，测试环境和正式环境共三个环境的配置信息，不同的配置里面有不同的Redis服务器连接配置。

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><!--<dependencies>等等配置，省掉 --><profiles>    <!-- 本地开发环境(Development) -->    <profile>        <id>Development</id>        <properties>            <!-- redis  -->            <redis.host>192.168.14.73</redis.host>            <redis.port>6379</redis.port>            <redis.auth></redis.auth>            <redis.select></redis.select>        </properties>        <!-- 打包时不指定profile id，默认激活本环境 -->        <activation>            <activeByDefault>true</activeByDefault>        </activation>    </profile>    <!-- 测试环境(TEST) 提供给测试团队的-->    <profile>        <id>Test</id>        <properties>            <!-- redis  -->            <redis.host>192.168.14.200</redis.host>            <redis.port>6379</redis.port>            <redis.auth></redis.auth>            <redis.select></redis.select>        </properties>    </profile>    <!-- 正式生产环境(Production) -->    <profile>        <id>Production</id>        <properties>            <!-- redis  -->            <redis.host>192.168.14.206</redis.host>            <redis.port>6379</redis.port>            <redis.auth>password</redis.auth>            <redis.select></redis.select>        </properties>    </profile></profiles>1
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2，java代码中想要取得profile中的配置的话，要通过.properties文件来读取

例redis.properties

#redis服务器redis.host=${redis.host}redis.port=${redis.port}redis.auth=${redis.auth}redis.select=${redis.select}1
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3，.properties文件怎么才能取到pom文件中profile定义的值呢，需要在pom文件中增加filtering标签，加在build标签内

<build>    <sourceDirectory>src/main/java</sourceDirectory>    <testSourceDirectory>src/test/java</testSourceDirectory>    <resources>        <resource>            <directory>src/main/java</directory>            <includes>                <include>**/*.xml</include>            </includes>            <excludes>                <exclude>**/*.java</exclude>            </excludes>            <filtering>true</filtering>        </resource>        <resource>            <directory>src/main/resources</directory>            <filtering>true</filtering>        </resource>    </resources>    <testResources>        <testResource>            <directory>src/test/java</directory>            <includes>                <include>**/*.properties</include>                <include>**/*.xml</include>            </includes>            <excludes>                <exclude>**/*.java</exclude>                <exclude>**/*.class</exclude>            </excludes>            <filtering>true</filtering>        </testResource>        <testResource>            <directory>src/test/resources</directory>            <filtering>true</filtering>        </testResource>    </testResources>    <!--<plugins>省掉 --></build>1
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4，java读取.properties文件，使用ResourceBundle就可以了

ResourceBundle resourceBundle = ResourceBundle.getBundle("redis");//redis配置信息String host = resourceBundle.getString("redis.host");//redis服务器hostString port = resourceBundle.getString("redis.port");//redis服务器端口String auth = resourceBundle.getString("redis.auth");//redis服务器认证信息String select = resourceBundle.getString("redis.select");//redis数据库1
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5，打包的时候通过-P指定用哪一个profile的信息来编译打包

`mvn package -PprofileId `

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