将路由拆分为多个文件

Question

我是 Kotlin 和 Ktor 的新手，作为启动，我在下面的工作正常，现在我需要添加更多 Routes 如何将路由拆分为多个文件？

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.jetbrains.ktor.request.*     // for recieve
import org.jetbrains.ktor.util.*       // for ValuesMap

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") {
            val post = call.receive<ValuesMap>() 
            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(post["subject"])        
                setMsg(post["message"])            
                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()
}

Answer 1

你可以创建2个文件，例如：

Principal.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.jetbrains.ktor.request.*     // for recieve
import org.jetbrains.ktor.util.*       // for ValuesMap

import org.apache.commons.mail.*

fun Application.module() {
    install(DefaultHeaders)
    install(CallLogging)
    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)
        }
}

还有Contact.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.jetbrains.ktor.request.*     // for recieve
import org.jetbrains.ktor.util.*       // for ValuesMap

import org.apache.commons.mail.*

fun Application.moduleContact() {
    routing{
        post("/contact-us") {
            val post = call.receive<ValuesMap>() 
            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(post["subject"])        
                setMsg(post["message"])            
                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) 
        }
    }
}

并修改application.conf

ktor {
    deployment {
        port = 8080
        port = ${?PORT}
    }
    application {
        modules = [ com.ejemplo.blog.PrincipalKt.module,
                    com.ejemplo.blog.ContactKt.moduleContact
        ]
    }
}

Answer 2

终于想通了：

为你需要的函数名安装路由，比如：

install(Routing) {
        contact()
}

创建一个类似fun Route.contact(){ ..} 的函数来处理必需品，因此对于我的示例，我创建了以下内容：

fun Route.contact(){
        get("/") {
            call.respondText("""
            My Example Blog 12
                <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") {
            val post = call.receive<ValuesMap>() // val userId = registration["userId"]
            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(post["subject"])        
                setMsg(post["message"])            
                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) 
        }
}