這篇文章將為大家詳細講解有關SpringFramework應用接入Apollo配置中心的示例分析,小編覺得挺實用的,因此分享給大家做個參考,希望大家閱讀完這篇文章后可以有所收獲。
環境:
SpringFramework:4.3.5.RELEASE
apollo-client:1.5.1
1.在項目的 resources/META-INF/ 目錄下添加 app.properties 文件:
#Apollo配置id
app.id = phpdragon-demo
apollo.bootstrap.enabled = true
apollo.eagerLoad.enabled = true
apollo.cacheDir = /data/app_data/apollo_cache/
2. 新建 ApolloConfigurer 類,負責處理合并本地properties配置:
import com.alibaba.dubbo.common.utils.ConfigUtils;
import com.ctrip.framework.apollo.Config;
import com.ctrip.framework.apollo.ConfigService;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
import java.util.Properties;
import java.util.Set;
/**
* 處理apollo配置
*/
public class ApolloConfigurer extends PropertyPlaceholderConfigurer {
static final String[] NAMESPACES = {"PUBLIC", "REDIS", "ZOOKEEPER", "application"};
@Override
protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props) throws BeansException {
try {
this.reloadProperties(props);
} catch (Exception e) {
e.printStackTrace();
logger.info("獲取apollo配置失敗");
}
//設置到dubbo的上下里
ConfigUtils.addProperties(props);
super.processProperties(beanFactoryToProcess, props);
}
private void reloadProperties(Properties props) {
for (String namespace : NAMESPACES) {
Config config = ConfigService.getConfig(namespace);
Set<String> fieldNames = config.getPropertyNames();
for (String attributeName : fieldNames) {
props.put(attributeName, config.getProperty(attributeName, ""));
//設置到系統變量里
System.setProperty(attributeName, config.getProperty(attributeName, ""));
}
}
}
@Override
protected String resolvePlaceholder(String placeholder, Properties props) {
this.reloadProperties(props);
return props.getProperty(placeholder);
}
}3.在 Spring 的配置xml文件中聲明配置:
<bean class="com.phpdragon.config.ApolloConfigurer"> <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/> <property name="ignoreResourceNotFound" value="true"/> <property name="trimValues" value="true"/> <property name="locations"> <list> <value>classpath*:*.properties</value> <value>classpath*:properties/*.properties</value> </list> </property> <property name="fileEncoding" value="UTF-8"/> </bean>
4.編寫配置類接收遠程配置變量:
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;
import lombok.Data;
/**
*
*/
@Data
@Configuration
//@EnableApolloConfig不能使用該注解,否則會導致無效,該注解由 ApolloConfigurer 接管類似功能
public class RedisConfig {
@Value("${sys.redis.host}")
private String hostName;
@Value("${sys.redis.port}")
private int port;
@Value("${redis.password}")
private String password;
@Value("${redis.timeout}")
private int timeout;
@Value("${redis.pool.maxTotal}")
private int maxTotal;
@Value("${redis.pool.minIdle}")
private int minIdle;
@Value("${redis.pool.maxIdle}")
private int maxIdle;
@Value("${redis.pool.maxWaitMillis}")
private long maxWaitMillis;
@Value("${redis.pool.testOnBorrow}")
private boolean testOnBorrow;
@Value("${redis.pool.testOnReturn}")
private boolean testOnReturn;
}關于“SpringFramework應用接入Apollo配置中心的示例分析”這篇文章就分享到這里了,希望以上內容可以對大家有一定的幫助,使各位可以學到更多知識,如果覺得文章不錯,請把它分享出去讓更多的人看到。
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