Vaadin 12将对象传递给JavaScript';s功能:Can';t编码类
瓦丁12号,科特林项目 在myVaadin 12将对象传递给JavaScript';s功能:Can';t编码类,javascript,kotlin,vaadin12,Javascript,Kotlin,Vaadin12,瓦丁12号,科特林项目 在mymyPage.html中,我有javascript: myObject.redirectToCheckout({ sessionId: "1111_2222", }). 因此,我需要从vaadin12调用javaScript函数重定向到checkout,并将正确的参数作为对象传递。 下面是我的Vaadin片段: import com.vaadin.flow.component.depende
myPage.html
中,我有javascript:
myObject.redirectToCheckout({
sessionId: "1111_2222",
}).
因此,我需要从vaadin12调用javaScript函数重定向到checkout
,并将正确的参数作为对象传递。
下面是我的Vaadin片段:
import com.vaadin.flow.component.dependency.HtmlImport
import com.vaadin.flow.component.dependency.JavaScript
import com.vaadin.flow.component.html.Div
import com.vaadin.flow.router.Route
import com.vaadin.flow.server.VaadinRequest
import java.io.Serializable
@Route(value = "redir")
@HtmlImport("styles/myPage.html")
class RedirectForm : Div() {
init {
val request = VaadinRequest.getCurrent()
val paramGoto = request.getParameter("goto")
val redirect = Redirect("$paramGoto")
UI.getCurrent().getPage().executeJavaScript("myObject.redirectToCheckout($0)", redirect) // **error here**
}
inner class Redirect : Serializable {
var sessionId: String
constructor(sessionId: String) {
this.sessionId = sessionId
}
}
}
但我得到了一个错误:
Caused by: java.lang.IllegalArgumentException: Can't encode class com.myproject.view.RedirectForm$Redirect to json
at com.vaadin.flow.internal.JsonCodec.encodeWithoutTypeInfo(JsonCodec.java:165)
at com.vaadin.flow.internal.JsonCodec.encodeWithTypeInfo(JsonCodec.java:80)
at com.vaadin.flow.component.page.Page.executeJavaScript(Page.java:338)
at com.myproject.view.RedirectForm.<init>(RedirectView.kt:28)
... 50 common frames omitted
原因:java.lang.IllegalArgumentException:无法将类com.myproject.view.RedirectForm$Redirect编码为json
在com.vaadin.flow.internal.JsonCodec.encodeWithoutTypeInfo(JsonCodec.java:165)上
在com.vaadin.flow.internal.JsonCodec.encodeWithTypeInfo(JsonCodec.java:80)上
位于com.vaadin.flow.component.page.page.executeJavaScript(page.java:338)
在com.myproject.view.RedirectForm上。(RedirectView.kt:28)
... 省略50个公共框架
使用JsonObject
代替重定向
:
val request = VaadinRequest.getCurrent()
val paramGoto = request.getParameter("goto")
val json = Json.createObject()
json.put("sessionId", "$paramGoto")
UI.getCurrent().getPage().executeJavaScript("myObject.redirectToCheckout($0)", json)