SpringFramework应用接入Apollo配置中心过程解析

2023-07-28 02:59:06 78

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：

importcom.alibaba.dubbo.common.utils.ConfigUtils;
importcom.ctrip.framework.apollo.Config;
importcom.ctrip.framework.apollo.ConfigService;
importorg.springframework.beans.BeansException;
importorg.springframework.beans.factory.config.ConfigurableListableBeanFactory;
importorg.springframework.beans.factory.config.PropertyPlaceholderConfigurer;

importjava.util.Properties;
importjava.util.Set;

/**
*处理apollo配置
*/
publicclassApolloConfigurerextendsPropertyPlaceholderConfigurer{

staticfinalString[]NAMESPACES={"PUBLIC","REDIS","ZOOKEEPER","application"};

@Override
protectedvoidprocessProperties(ConfigurableListableBeanFactorybeanFactoryToProcess,Propertiesprops)throwsBeansException{
try{
this.reloadProperties(props);
}catch(Exceptione){
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);
}

privatevoidreloadProperties(Propertiesprops){
for(Stringnamespace:NAMESPACES){
Configconfig=ConfigService.getConfig(namespace);
SetfieldNames=config.getPropertyNames();
for(StringattributeName:fieldNames){
props.put(attributeName,config.getProperty(attributeName,""));
//设置到系统变量里
System.setProperty(attributeName,config.getProperty(attributeName,""));
}
}
}
@Override
protectedStringresolvePlaceholder(Stringplaceholder,Propertiesprops){
this.reloadProperties(props);
returnprops.getProperty(placeholder);
}
}

3.在Spring的配置xml文件中声明配置：







classpath*:*.properties
classpath*:properties/*.properties

4.编写配置类接收远程配置变量：

importorg.springframework.beans.factory.annotation.Autowired;
importorg.springframework.beans.factory.annotation.Value;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;
importorg.springframework.data.redis.connection.jedis.JedisConnectionFactory;
importorg.springframework.data.redis.core.StringRedisTemplate;
importorg.springframework.data.redis.serializer.StringRedisSerializer;
importredis.clients.jedis.JedisPoolConfig;

importlombok.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
publicclassRedisConfig{

@Value("${sys.redis.host}")
privateStringhostName;

@Value("${sys.redis.port}")
privateintport;

@Value("${redis.password}")
privateStringpassword;

@Value("${redis.timeout}")
privateinttimeout;

@Value("${redis.pool.maxTotal}")
privateintmaxTotal;

@Value("${redis.pool.minIdle}")
privateintminIdle;

@Value("${redis.pool.maxIdle}")
privateintmaxIdle;

@Value("${redis.pool.maxWaitMillis}")
privatelongmaxWaitMillis;

@Value("${redis.pool.testOnBorrow}")
privatebooleantestOnBorrow;

@Value("${redis.pool.testOnReturn}")
privatebooleantestOnReturn;

}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

SpringFramework应用接入Apollo配置中心过程解析

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