spring读取配置文件

Spring中config属性文件的读取与使用 PropertyPlaceholderConfigurer 注解@Component

1.配置文件：/WEB-INF/configInfo.properties
配置文件内容：
email.host = www.94gleaner.com
email.port = xxx
email.username = gleaner
email.password = xxx
email.sendFrom = 94gleaner@94gleaner.com

2.Spring容器启动时，使用内置bean对属性文件信息进行加载，在bean.xml中添加如下：
<!– spring的属性加载器，加载properties文件中的属性 –>
<bean id=”propertyConfigurer” class=”org.springframework.beans.factory.config.PropertyPlaceholderConfigurer”>

<property name=”location”>
<value>/WEB-INF/configInfo.properties</value>
</prope 4000 rty>
<property name=”fileEncoding” value=”utf-8″ />

</bean>

3.其它bean中引用,例：
<property name=”host”>

<value>${email.host}</value>

</property>
<property name=”port”>

<value>${email.port}</value>

</property>

4.JAVA代码中获取方法：创建ConfigInfo.java
@Component(“configInfo”)
public class ConfigInfo {

@Value(“${email.host}”)
private String host;
@Value(“${email.port}”)
private String port;
public String getHost() {
return host;
}
public String getPort() {
return port;
}

}

5.代码中调用处
@Autowired
private ConfigInfo configInfo;
public byte[] Test(HttpServletResponse response) {

string host = configInfo.getHost();

}