如何使用Play 2.0路由绑定Double参数

// 导入所需包
import play.api.mvc._

// 自定义YourController类
class YourController extends Controller {

  // 添加一个路由定义
  def double(double: Double): Action[AnyContent] = Action {
    // 将请求参数绑定到Double类型
    val input: Double = params.getDouble("double")

    // 处理请求
    Ok(s"The double value is: $input")
  }
}

@()(implicit request: Request[AnyContent])

// 导入所需包
import play.api.data.Form
import play.api.mvc.Request
import play.api.mvc.Result
import play.api.data.Forms.double

val doubleForm = Form(single("double" -> double))

@main("Double Example") {
    <h1>请求参数：${request.queryString.get("double")}</h1>
    <form action="@{doubleForm.url("double")}" method="post">
        <input type="text" name="double" placeholder="Enter a double value...">
        <input type="submit" value="Submit">
    </form>
}

// 导入所需包
import play.api.mvc._

// 自定义YourController类
class YourController extends Controller {

  // 添加一个路由定义
  def double(double: Double): Action[AnyContent] = Action {
    // 处理请求
    Ok(s"The double value is: $double")
  }

  // 获取请求参数
  def getDouble(): Action[AnyContent] = Action {
    val input: Double = params.getDouble("double")
    Ok(s"The double value is: $input")
  }
}