Kotlin 接收到Ktor服务器的表单参数
我不熟悉Java和Kotlin,试图用Kotlin 接收到Ktor服务器的表单参数,kotlin,ktor,Kotlin,Ktor,我不熟悉Java和Kotlin,试图用Ktor构建一个联系人表单,因此我启用了gmail的不安全连接,并构建了以下应用程序: blogApp.kt: package blog import org.jetbrains.ktor.netty.* import org.jetbrains.ktor.routing.* import org.jetbrains.ktor.application.* import org.jetbrains.ktor.features.* import org.jet
Ktor
构建一个联系人表单,因此我启用了gmail的不安全连接,并构建了以下应用程序:
blogApp.kt
:
package blog
import org.jetbrains.ktor.netty.*
import org.jetbrains.ktor.routing.*
import org.jetbrains.ktor.application.*
import org.jetbrains.ktor.features.*
import org.jetbrains.ktor.host.*
import org.jetbrains.ktor.http.*
import org.jetbrains.ktor.response.*
import org.apache.commons.mail.*
fun Application.module() {
install(DefaultHeaders)
install(CallLogging)
install(Routing) {
get("/") {
call.respondText("""
My Example Blog2
<form action="/contact-us" method="post">
<input name="subject" placeholder="Subject">
<br>
<textarea name="message" placeholder="Your message ..."></textarea>
<br>
<button>Submit</button>
</form>
""", ContentType.Text.Html)
}
post("/contact-us") {
SimpleEmail().apply {
setHostName("smtp.gmail.com")
setSmtpPort(465)
setAuthenticator(DefaultAuthenticator("my_alias@gmail.com", "my_gmil_passoword"))
setSSLOnConnect(true)
setFrom("my_alias@gmail.com")
setSubject("subject") // I need to use formParam
setMsg("message") // I need to use formParam
addTo("my_alias@gmail.com")
}.send() // will throw email-exception if something is wrong
call.respondRedirect("/contact-us/success")
}
get("/contact-us/success") {
call.respondText("Your message was sent", ContentType.Text.Html)
}
}
}
fun main(args: Array<String>) {
embeddedServer(Netty, 8080, watchPaths = listOf("BlogAppKt"), module = Application::module).start()
}
事情进展顺利,我可以给自己发送一封电子邮件,然后重定向到成功页面,但发送的消息带有预设数据:
setSubject("subject") // I need to use formParam
setMsg("message") // I need to use formParam
如何使
Ktor
接收用户在表单中真正输入的数据,如何读取表单参数?您可以使用call.receive()
并反思数据:
import org.jetbrains.ktor.request.* // for recieve
import org.jetbrains.ktor.util.* // for ValuesMap
post("/contact-us") {
val post = call.receive<ValuesMap>()
val subj = post["subject"]
val msg = post["message"]
SimpleEmail().apply { ... }
}
虽然当时上述答案是正确的,但今天当我通过kotlin+Ktor时,我发现上述答案不再有效 您现在需要的是这样的东西:
- call.receive
()[“PARAM_NAME”]
import org.jetbrains.ktor.request.* // for recieve
import org.jetbrains.ktor.util.* // for ValuesMap
post("/contact-us") {
val post = call.receive<ValuesMap>()
val subj = post["subject"]
val msg = post["message"]
SimpleEmail().apply { ... }
}
val post = call.receiveParameters()