implemented rest service

Author: leetcope

src/main/java/com/sample/App.java

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+package com.sample;
+
+import javax.ws.rs.core.Application;
+import javax.ws.rs.ApplicationPath;
+import java.util.Collections;
+import java.util.Set;
+
+@ApplicationPath("rest")
+public class App extends Application {
+    @Override
+    public Set<Class<?>> getClasses(){
+        return Collections.singleton(SimpleRest.class);
+    }
+}

src/main/java/com/sample/Config.java

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+package com.sample;
+
+import javax.servlet.ServletContextListener;
+import javax.servlet.ServletContextEvent;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletRegistration;
+import static javax.servlet.ServletRegistration.Dynamic;
+import javax.servlet.annotation.WebListener;
+
+@WebListener
+public class Config implements ServletContextListener {
+    public void contextInitialized(ServletContextEvent sce) {
+        ServletContext context = sce.getServletContext();
+        Dynamic servlet = context.addServlet("app", org.glassfish.jersey.servlet.ServletContainer.class);
+        servlet.setLoadOnStartup(1);
+        ServletRegistration registration = context.getServletRegistration("app");
+        registration.addMapping("/jersey/*");
+    }
+
+    public void contextDestroyed(ServletContextEvent sce){}
+}

src/main/java/com/sample/SimpleRest.java

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+package com.sample;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+
+@Path("/simple")
+public class SimpleRest {
+
+    @GET
+    @Produces(MediaType.APPLICATION_JSON)
+    public Simple getSimple() {
+        return new Simple("simple name");
+    }
+
+    public static class Simple{
+        private String name;
+
+        public Simple(String name){
+            this.name = name;
+        }
+
+        public String getName() {
+            return name;
+        }
+    }
+}