NacosConfigListener (nacos-api 2.2.3 2.2.3 API)

```
@Retention(RUNTIME)
@Target(METHOD)
@Documented
public @interface NacosConfigListener
```
Annotation that marks a method as a listener for Nacos Config change.

从以下版本开始:

0.2.0

作者:

Mercy

必需元素概要

所需元素
修饰符和类型必需的元素说明

java.lang.String dataId
Nacos Data ID.

可选元素概要

可选元素
修饰符和类型	可选元素	说明
`java.lang.Class<? extends NacosConfigConverter>`	`converter`	Specify `Nacos configuraion convertor` class to convert target type instance.
`java.lang.String`	`groupId`	Nacos Group ID.
`NacosProperties`	`properties`	The `NacosProperties` attribute, If not specified, it will use global Nacos Properties.
`long`	`timeout`	Maximum timeout value of execution in milliseconds, which is used to prevent long-time blocking execution impacting others.
`ConfigType`	`type`	Nacos Config type.

- 元素详细资料
  - dataId
```
java.lang.String dataId
```
    Nacos Data ID.
    
    返回:
    
    required value.
- - groupId
```
java.lang.String groupId
```
    Nacos Group ID.
    
    返回:
    
    default value Constants.DEFAULT_GROUP;
    
    默认值:
    
    "DEFAULT_GROUP"
- - type
```
ConfigType type
```
    Nacos Config type.
    
    返回:
    
    default value is ConfigType.UNSET
    
    默认值:
    
    com.alibaba.nacos.api.config.ConfigType.UNSET
- - converter
```
java.lang.Class<? extends NacosConfigConverter> converter
```
    Specify Nacos configuraion convertor class to convert target type instance.
    
    返回:
    
    The implementation class of NacosConfigConverter
    
    默认值:
    
    com.alibaba.nacos.api.config.convert.NacosConfigConverter.class
- - properties
```
NacosProperties properties
```
    The NacosProperties attribute, If not specified, it will use global Nacos Properties.
    
    返回:
    
    the default value is NacosProperties
    
    默认值:
    
    @com.alibaba.nacos.api.annotation.NacosProperties
- - timeout
```
long timeout
```
    Maximum timeout value of execution in milliseconds, which is used to prevent long-time blocking execution impacting others.
    
    返回:
    
    default value is 1000
    
    默认值:
    
    1000L