在Play框架中将JavaScript变量转换为Scala

本文介绍了在Play框架中将JavaScript变量转换为Scala的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在javascript中有一些变量:

I have some variables in javascript:

var something = 1; var url = "@CSRF(routes.Some.thing(something))";

在编译过程中出现错误，因为某物" 没有引用javascript变量，换句话说，编译器无法识别它.是否有可能以某种方式转换/注入javascript变量?另外，这是否可以在javascript中实时工作，还是需要准备包含每个可能的某物"值的"@ CSRF(routes.Some.thing(something))" 数组?

I get an error during compilation because "something" does not refer to the javascript variable, in other words; the compiler can't identify it. Is it possible to convert/inject the javascript variable somehow? Also, does this work in real time in javascript or do I need to prepare an "@CSRF(routes.Some.thing(something))" array containing each possible "something" value?

应该在路由文件中看到一个简单的rest呼叫:

It's supposed to be a simple rest call, seen in routes file:

/something/:something controllers.Some.thing(something : Long)

一种替代方法是使用表格，但我想尽量不要使用.

An alternative would be to use a form, but I want to try not to.

推荐答案

您需要使用Javascript路由并将CSRF令牌添加到请求中.

You need to use a Javascript Routing and add the CSRF token to the request.

JavaScript漫游说明: www.playframework/documentation/2.6 .x/ScalaJavascriptRouting

Javascript Rounting description: www.playframework/documentation/2.6.x/ScalaJavascriptRouting

看看我对问题的回答，并解释如何将其用于资产(正确且长期的解决方案")，其他活动的用法相同:如何在Play框架项目中从JavaScript更新img的src ?

Look at my answer to the question with explanation how to use it for assets("Correct and long solution"), the usage for other activities is the same: How to update src of a img from javascript in a play framework project?

因此，在您的情况下，JavaScript路由生成可能类似于:

So in your case, the Javascript routes generation can look like:

JavaScriptReverseRouter("jsRoutes")( routes.javascript.Some.thing )

在JavaScript中:

And in the JavaScript:

var something = 1; var url = jsRoutes.controllers.Some.thing(something).url;

最后一个-不要忘记在请求中添加Csrf-Token标头.

The last - do not forget to add Csrf-Token header to the request.