问题描述
我的Vertx服务器驻留在服务器A中，客户端驻留在服务器B中。当我尝试访问vertx服务器时，会弹出CORS错误。我添加了一些服务器端代码来处理CORS问题，但它无法正常工作。我们是否需要在客户端添加一些标头。我在这里失踪了什么？任何人都可以帮助
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服务器端：
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.http.HttpMethod.GET)
.allowedMethod(io.vertx.core.http.HttpMethod.POST)
.allowedMethod(io.vertx.core.http.HttpMethod.OPTIONS)
.allowedHeader("Access-Control-Request-Method")
.allowedHeader("Access-Control-Allow-Credentials")
.allowedHeader("Access-Control-Allow-Origin")
.allowedHeader("Access-Control-Allow-Headers")
.allowedHeader("Content-Type"));
客户实施：
function(url, user) {
eventBus = new EventBus(url);
eventBus.onopen = function() {
//Do Something
}
}
更新：
我删除了header中的withCredential属性。现在我的代码看起来像
I removed the withCredential attribute in header.Now my code looks like
if (ar.succeeded()) {
routingContext.response().setStatusCode(200).setStatusMessage("OK")
.putHeader("content-type", "application/json")
.putHeader("Access-Control-Allow-Origin", "*")
.putHeader("Access-Control-Allow-Methods","GET, POST, OPTIONS")
.end(
Json.encodePrettily(ar.result().body())
//(String) ar.result().body()
);
routingContext.response().close();
但弹出后仍然出现错误。你能帮忙吗？
but still following error pops up. Can you help?
XMLHttpRequest cannot load https://192.168.1.20:7070/Notify/571/rn4nh0r4/xhr_send?t=1471592391921. A wildcard '*' cannot be used in the 'Access-Control-Allow-Origin' header when the credentials flag is true. Origin 'https://login.com' is therefore not allowed access. The credentials mode of an XMLHttpRequest is controlled by the withCredentials attribute.
Update2：
在中添加客户端地址后
Update2:After adding my client address in
.putHeader("Access-Control-Allow-Origin", "*")
我收到了以下日志：
XMLHttpRequest cannot LOAD https://192.168.1.20:7070/Notify/773/k3zq1z2z/xhr_send?t=1471601521206. Credentials flag IS 'true', but the 'Access-Control-Allow-Credentials' header IS ''. It must be 'true' TO allow credentials. Origin 'https://login.com' IS therefore NOT allowed access.
我的代码如下：
if (ar.succeeded()) {
routingContext.response().setStatusCode(200).setStatusMessage("OK")
.putHeader("content-type", "application/json")
.putHeader("Access-Control-Allow-Origin", "https://login.com")
.putHeader("Access-Control-Allow-Methods","GET, POST, OPTIONS")
.putHeader("Access-Control-Allow-Credentials", "true")
.end(
Json.encodePrettily(ar.result().body())
//(String) ar.result().body()
);
routingContext.response().close();
推荐答案
通过在内部添加withCredential标志来解决问题路由器处理程序。
The problem was solved by adding withCredential flag to true inside the router handler.
我的代码如下
router.route().handler(io.vertx.rxjava.ext.web.handler.CorsHandler.create("https://login.com")
.allowedMethod(io.vertx.core.http.HttpMethod.GET)
.allowedMethod(io.vertx.core.http.HttpMethod.POST)
.allowedMethod(io.vertx.core.http.HttpMethod.OPTIONS)
.allowCredentials(true)
.allowedHeader("Access-Control-Allow-Method")
.allowedHeader("Access-Control-Allow-Origin")
.allowedHeader("Access-Control-Allow-Credentials")
.allowedHeader("Content-Type"));
之前只在响应标题中设置了
previously it was set only in the response header
if (ar.succeeded()) {
routingContext.response().setStatusCode(200).setStatusMessage("OK")
.putHeader("content-type", "application/json")
.putHeader("Access-Control-Allow-Origin", "https://login.com")
.putHeader("Access-Control-Allow-Methods","GET, POST, OPTIONS")
.putHeader("Access-Control-Allow-Credentials", "true")
.end(
Json.encodePrettily(ar.result().body())
//(String) ar.result().body()
);
routingContext.response().close();
这篇关于vertx中的CORS问题应用程序无法正常工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！