vert.x

问题 In Node.js you can assign values to keys off of the global object. This gives you the ability to "remember" something between requests. Assuming the node.js process doesn't die/hang and restart by a process like iisnode. Does Vert.x have an equivalent? Essentially, I'm looking for the simplest possible cache for a piece of data so I do not have to fetch it on every request. I assume the solution on Vert.x may be able to work across threads? 回答1: the code: {{id:1,name:"Yahoo"},{id:2,name:

问题 My Vertx Server resides in server A and client resides in server B. When i tried to access vertx server, CORS error pops in. I added some server side code to handle CORS issue but it's not working. Do we need to add some header in client side. what am i missing here? Can anyone help Vertx Server Side: Router router = Router.router(vertx); router.route().handler(BodyHandler.create()); router.route().handler(io.vertx.rxjava.ext.web.handler.CorsHandler.create("*") .allowedMethod(io.vertx.core

问题 I want to know Best practices for initilizing JOOQ generated DAO. Now,I am using following approach for initilization of JOOQ generated DAO. In following case StudentDao is JOOQ generated. public class ExtendedStudentDAO extends StudentDao { public ExtendedStudentDAO () { super(); } public ExtendedStudentDAO (Connection connection) { Configuration configuration = DSL.using(connection, JDBCUtils.dialect(connection)).configuration(); this.setConfiguration(configuration); } //adding extra

问题 I'm developing in Vert.x (based on Netty and Hazelcast), and I'm trying to share data between two server instances (eache of those instances in different machines, on the same lan). My problem is that I don't know how to configure the vert.x servers to allow them to share their concurrent memory maps (the theory says that's possible). I've read many documents off Vert.x and Hazelcast but I haven't had results yet. (I don't know how to force vert.x to load hazelcast xml configuration files).

问题 I am new to Vert.X. Does Vert.x have a built in facility for centralized filters? What I mean are the kind of filters that you would use on a J2EE application. For instance, all pages have to go through the auth filter, or something like that. Is there a standardized way to achieve this in Vert.x? 回答1: I know this question is quite old, but for those still looking for filter in Vertx 3, the solution is to use subRouter as a filter: // Your regular routes router.route("/").handler((ctx) -> {

问题 I have an insert method in my vert.x project written in rxjava style. In my method I run an insert query to insert the record in ms sql server. I want to get the auto incremented key of newly inserted record. How I can get it? Here is my code. @Override public Single<Record> save(Record record) { return new AsyncResultSingle<Record>(resultHandler -> { jdbcClient.rxGetConnection() .subscribe(connection -> { String sql = "INSERT into record (ani, template_id) values (?, ?)"; JsonArray params =

问题 from http://vertx.io/docs/vertx-core/java/ the Live Redeploy section. java io.vertx.core.Launcher run org.acme.MyVerticle --redeploy="**/*.class" --launcher-class=io.vertx.core .Launcher -cp ... Then if I want to debug MyVerticle from IDE (IntelliJ IDE) I can not not do it. Seems the launcher launch it out of the "context" in different class loader?.. The question is: How to debug a Verticle in IDE that was launched by the Launcher ? 回答1: This is explained in the Live Redeploy section of the

问题 I'm wondering if it's possible to run Vuetify (out-of-the-box) with Vert.x. I've played around a bit and I don't see a straightforward way but perhaps I'm missing something. Sources: https://vuetifyjs.com/en/getting-started/quick-start https://reactiverse.io/es4x/start/install Steps: Create an out-of-the-box Vuetify: npm install @vue/cli -g vue create my-app cd my-app vue add vuetify Test that it works by running it in Node npm run start When I view http://localhost:8080 (using node) it looks

问题 This is my first try to do a asynchronous program with java. My requirement is that whenever I receive a request I have to start a task which may take an hour. Therefore I have immediately reply to the user that “ the task has started” before the task finishes. I amusing apache timcat version 8.5.23. I assumed that AsyncContext.start() will help me but what I found that AsyncContext won’t return the response to the client until it calls the onComplete(AsyncEvent event) . Is there a way I can

问题 I'm writing a POC using vertx, looking for alternatives when we have to migrate Spring Web from 4.x to 5 to be java 9 compliant. I've written a simple client, just a GET towards a publicly available server just to get something working but it silently fails me. public List<String> pull() { Vertx vertx = Vertx.vertx(); HttpClientOptions options = new HttpClientOptions().setLogActivity(true); HttpClient hc = vertx.createHttpClient(options); hc.getNow(80, "http://sunet.se", "/",r -> { System.out