SpringFramework应用接入Apollo配置中心过程解析
作者:phpdragon 时间:2021-08-30 09:03:50
环境:
SpringFramework:4.3.5.RELEASE
apollo-client:1.5.1
1.在项目的 resources/META-INF/ 目录下添加 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 类,负责处理合并本地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;
/**
* 处理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("获取apollo配置失败");
}
//设置到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, ""));
//设置到系统变量里
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文件中声明配置:
<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.编写配置类接收远程配置变量:
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不能使用该注解,否则会导致无效,该注解由 ApolloConfigurer 接管类似功能
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;
}
来源:https://www.cnblogs.com/phpdragon/p/12562429.html
标签:Spring,Frame,work,Apollo,配置
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