CORS in JAX-RS (#1484)

* rest with spark java

* 4

* Update Application.java

* indentation changes

* spring @requestmapping shortcuts

* removing spring requestmapping and pushing spring-mvc-java

* Joining/Splitting Strings with Java and Stream API

* adding more join/split functionality

* changing package name

* testcase change

* adding webutils

* adding testcase for WebUtils and ServletRequestUtils

* adding testcase

* spring-security-stormpath

* adding ratpack module

* adding pom.xml

* adding following modules with updated testcase : DB, Filter, Json

* adding spring-boot custom banner tutorial

* changing banner format in plain text

* Delete banner.txt~

* Delete b.txt~

* CORS in JAX-RS

resteasy/src/main/java/com/baeldung/filter/CorsFilter.java

@@ -0,0 +1,22 @@
+package com.baeldung.filter;
+
+import java.io.IOException;
+
+import javax.ws.rs.container.ContainerRequestContext;
+import javax.ws.rs.container.ContainerResponseContext;
+import javax.ws.rs.container.ContainerResponseFilter;
+import javax.ws.rs.ext.Provider;
+
+@Provider
+public class CorsFilter implements ContainerResponseFilter {
+
+	@Override
+	public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext)
+			throws IOException {
+		responseContext.getHeaders().add("Access-Control-Allow-Origin", "*");
+		responseContext.getHeaders().add("Access-Control-Allow-Headers", "origin, content-type, accept, authorization");
+		responseContext.getHeaders().add("Access-Control-Allow-Credentials", "true");
+		responseContext.getHeaders().add("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD");
+	}
+
+}

resteasy/src/main/java/com/baeldung/server/MovieCrudService.java

@@ -15,6 +15,16 @@ public class MovieCrudService {
 
 	private Map<String, Movie> inventory = new HashMap<String, Movie>();
 
+	@GET
+	@Path("/")
+	@Produces({ MediaType.TEXT_PLAIN })
+	public Response index() {
+		return Response.status(200).header("Access-Control-Allow-Origin", "*")
+				.header("Access-Control-Allow-Headers", "origin, content-type, accept, authorization")
+				.header("Access-Control-Allow-Credentials", "true")
+				.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD").entity("").build();
+	}
+
 	@GET
 	@Path("/getinfo")
 	@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@@ -51,7 +61,8 @@ public class MovieCrudService {
 		System.out.println("*** Calling  updateMovie ***");
 
 		if (null == inventory.get(movie.getImdbId())) {
-            return Response.status(Response.Status.NOT_MODIFIED).entity("Movie is not in the database.\nUnable to Update").build();
+			return Response.status(Response.Status.NOT_MODIFIED)
+					.entity("Movie is not in the database.\nUnable to Update").build();
 		}
 
 		inventory.put(movie.getImdbId(), movie);
@@ -65,7 +76,8 @@ public class MovieCrudService {
 		System.out.println("*** Calling  deleteMovie ***");
 
 		if (null == inventory.get(imdbId)) {
-            return Response.status(Response.Status.NOT_FOUND).entity("Movie is not in the database.\nUnable to Delete").build();
+			return Response.status(Response.Status.NOT_FOUND).entity("Movie is not in the database.\nUnable to Delete")
+					.build();
 		}
 
 		inventory.remove(imdbId);

resteasy/src/main/webapp/script.js

@@ -0,0 +1,16 @@
+function call(url, type, data) {
+	var request = $.ajax({
+		url : url,
+		method : "GET",
+		data : (data) ? JSON.stringify(data) : "",
+		dataType : type
+	});
+
+	request.done(function(resp) {
+		console.log(resp);
+	});
+
+	request.fail(function(jqXHR, textStatus) {
+		console.log("Request failed: " + textStatus);
+	});
+};