如何从 gsp 调用 Grails 服务? [英] How do I call a Grails service from a gsp?

问题描述

如何直接从视图调用服务?我正在尝试使用 ${my.domain.service.method}，但它抱怨找不到该属性.

How can I invoke a service directly from a view? I'm trying with ${my.domain.service.method}, but it complains it can't find the property.

不，我不想使用控制器，因为视图是一个模板.

And no, I don't want to use a controller because the view is a template.

推荐答案

<%@ page import="com.myproject.MyService" %>
<%
    def myService = grailsApplication.classLoader.loadClass('com.myproject.MyService').newInstance()
%>

然后你可以在你的 gsp 视图中调用 ${myService.method()}

And then you can call ${myService.method()} in your gsp view

请注意，从视图调用事务性服务方法会影响性能.最好将所有事务性服务方法调用移至控制器(如果可以)

Be aware that calling transactional service methods from views hurts performance. Better to move all your transactional service method calls to the controller (if you can)

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