Utility API to verify which environment is the web application running.
The utility will check initially for the existence of a system property under the name vertx.mode
,
if there is no such property then it will look under the environment variables under the name VERTX_MODE
.
This value will be then used when the API is invoked. By itself this utility will not affect the behavior of your application, however you can use it to simplify your handlers, e.g.:
When the development mode is active you can log more information or disable caches.
package |
Default |
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__construct()
development() : boolean
boolean
always boolean
mode() : string
string
String with mode value or null
SYSTEM_PROPERTY_NAME
var |
php文件只是为了写代码方便,常量的实际值请参考原java文件 |
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ENV_VARIABLE_NAME
var |
php文件只是为了写代码方便,常量的实际值请参考原java文件 |
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