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Cómo crear un Groovy Servlet (Groovlet)
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def method = request.method | |
if (!session) { | |
session = request.getSession(true) | |
} | |
if (!session.groovlet) { // Podemos tener variables guardadas en session | |
session.groovlet = 'Groovlets rock!' | |
} | |
html.html { | |
head { | |
title 'Groovlet info' | |
} | |
body { | |
{ | |
h1 'General info' | |
ul { | |
li "Method: ${method}" | |
li "RequestURI: ${request.requestURI}" | |
li "Params: ${params}" | |
li "Body: ${request.reader?.text}" | |
li "session.groovlet: ${session.groovlet}" | |
li "application.version: ${context.version}" | |
} | |
h1 'Headers' | |
ul { | |
headers.each { | |
li "${it.key} = ${it.value}" | |
} | |
} | |
} | |
} | |
} |
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import groovy.json.* | |
class PersonService { | |
static List people = [] // Simular que tenemos una base de datos | |
void add(person) { people << person } | |
} | |
response.contentType = 'application/json' // La respuesta de este controlador será JSON | |
def method = request.method | |
def responseContent = [:] // Respuesta que se devolvera | |
PersonService personService = new PersonService() | |
jsonSlurper = new JsonSlurper() | |
if(headers['Content-Type'] != 'application/json') { | |
response.status = 415 | |
responseContent = [errorMessage:"Invalid contentType"] | |
json responseContent | |
return | |
} | |
switch(method) { | |
case "POST": | |
def person = jsonSlurper.parseText(request.reader?.text) | |
personService.add(person) | |
response.status = 201 | |
json person | |
break | |
case "GET": | |
response.status = 200 | |
json personService.people | |
break | |
default: | |
response.status = 405 | |
responseContent = [errorMessage:"Invalid operation"] | |
json responseContent | |
} |
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import org.mortbay.jetty.Server | |
import org.mortbay.jetty.servlet.* | |
import groovy.servlet.* | |
@Grab(group='org.mortbay.jetty', module='jetty-embedded', version='6.1.14') | |
def startJetty() { | |
def jetty = new Server(9090) // Puerto por el que correrá el servlet | |
def context = new Context(jetty, '/', Context.SESSIONS) // Permitir sesiones. | |
context.resourceBase = '.' // Buscar en el directorio actual por Groovy scripts. | |
context.addServlet(GroovyServlet, '*.groovy') // Todos los archivos que tengan terminación .groovy serán servidos. | |
context.setAttribute('version', '1.0') // Podemos asignar atributos al contexto | |
jetty.start() | |
} | |
println "Iniciando servidor Jetty, presiona Ctrl+C para detener la ejecución." | |
startJetty() |
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