基于diamond修改配置，spring实时对象更新方案

spring容器中注入配置类

@Configuration
public class DiamondConfigBean {

    @Bean
    public XxxConfig xxxConfig(){
        return new XxxConfig();
    }
}

diamond更新hock

@DiamondListener(dataId = "xxxl-config", groupId = "app-name")
public class DiamondIndustryConfigListener implements DiamondDataCallback {

    @Autowired
    XxxConfig xxxConfig;

    @Override
    public void received(String data) {
        try {

            Properties properties = new Properties();
            // diamond字符串转为 Properties(本质是个map, 继承自HashTable)
            properties.load(new ByteArrayInputStream(data.getBytes()));

            // 把properties的值注入到  bean对象里， 其他地方使用直接@Resource 
            // 前提是这个对象已经在容器中，此处也是从容器中取出并修改其值
            new RelaxedDataBinder(xxxConfig).bind(new MutablePropertyValues(properties));

        }catch (Exception e) {
            throw  new RuntimeException(e);
        }
    }
}

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