常量字段值 (cat-boot 1.0.3 API)

cn.xhteam.*

cn.xhteam.boot.util.HttpConstant
限定符和类型	常量字段	值
`public static final String`	`CONTENT_APPLICATION_JSON`	`"application/json; charset=utf-8"`
`public static final String`	`CONTENT_TEXT_HTML`	`"text/html; charset=utf-8"`
`public static final String`	`HTTP_REASON`	`"Not Found"`