55 lines
1.4 KiB
Markdown
55 lines
1.4 KiB
Markdown
Ktor是由Kotlin提供的一個framwork。
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要在Android使用Ktor，需要在build.gradle加入以下的dependency:
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```
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implementation "io.ktor:ktor:1.2.5"
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implementation "io.ktor:ktor-server-netty:1.2.5"
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implementation "io.ktor:ktor-gson:1.2.5"
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```
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在`packagingOptions`裡，也需要加入以下的設定來必面編譯問題：
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```
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packagingOptions {
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exclude 'META-INF/*'
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}
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```
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在`AndroidManifest.xml`中，記得加入internet的權限：
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```
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<uses-permission android:name="android.permission.INTERNET"/>
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```
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然後就是HTTP Server的code了：
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```
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embeddedServer(Netty, 8080) {
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install(ContentNegotiation) {
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gson {}
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}
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routing {
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get("/") {
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call.respond(mapOf("message" to "Hello world"))
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}
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}
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}.start(wait=true)
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```
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但是這段code會block，所以需要一個thread把它包起來：
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```kotlin
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Thread {
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httpEngine = embeddedServer(Netty, 8080) {
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install(ContentNegotiation) {
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gson {}
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}
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routing {
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get("/") {
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call.respond(mapOf("message" to "Hello world"))
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}
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get("/say/{something}") {
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call.respond(mapOf("message" to "You say: " + call.parameters["something"]))
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activity?.findViewById<TextView>(R.id.textView)?.text = "You say: " + call.parameters["something"]
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}
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}
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}.start(wait = false)
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}.start()
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``` |