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HttpRequestParametersExample.java
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HttpRequestParametersExample.java
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import io.datakernel.di.annotation.Provides;
import io.datakernel.http.AsyncServlet;
import io.datakernel.http.HttpResponse;
import io.datakernel.http.RoutingServlet;
import io.datakernel.http.StaticServlet;
import io.datakernel.launcher.Launcher;
import io.datakernel.launchers.http.HttpServerLauncher;
import java.util.concurrent.Executor;
import static io.datakernel.http.AsyncServletDecorator.loadBody;
import static io.datakernel.http.HttpMethod.GET;
import static io.datakernel.http.HttpMethod.POST;
import static java.util.concurrent.Executors.newSingleThreadExecutor;
public final class HttpRequestParametersExample extends HttpServerLauncher {
private static final String RESOURCE_DIR = "static/query";
@Provides
Executor executor() {
return newSingleThreadExecutor();
}
//[START REGION_1]
@Provides
AsyncServlet servlet(Executor executor) {
return RoutingServlet.create()
.map(POST, "/hello", loadBody()
.serve(request -> {
String name = request.getPostParameters().get("name");
return HttpResponse.ok200()
.withHtml("<h1><center>Hello from POST, " + name + "!</center></h1>");
}))
.map(GET, "/hello", request -> {
String name = request.getQueryParameter("name");
return HttpResponse.ok200()
.withHtml("<h1><center>Hello from GET, " + name + "!</center></h1>");
})
.map("/*", StaticServlet.ofClassPath(executor, RESOURCE_DIR)
.withIndexHtml());
}
//[END REGION_1]
public static void main(String[] args) throws Exception {
Launcher launcher = new HttpRequestParametersExample();
launcher.launch(args);
}
}