建议加上value的格式验证

[Hellerz]

有些业务场景的配置可能是多层次的，需要配置json或xml格式的，数据量也比较大，通常会交给产品或业务去配置，如果能加上json或xml格式的编辑器或者校验，就能很大程度的方便使用和减少出错率。

[nobodyiam]

恩，多谢建议，目前我们的配置还没有格式，后面希望能增加简单的格式以及对应的校验的，比如数字，日志，json等。

[nobodyiam]

@Hellerz 0.9.1 release引入了ace编辑器（#828）来展示和校验json或xml格式的namespace，效果如下，如果需要的话，可以升级一下。

[nobodyiam]

1.3.0版本对Yml/Yaml格式的namespace在页面上增加了语法检查功能。

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