Question

我收到json数组有问题。

发送JSON是：

[
     {
        "name": "Account 3",
        "type": 2,
        "active": true
     },
     {
         "name": "Account 4",
         "type": 1,
         "active": true
     },
     {
         "name": "Account 5",
         "type": 0,
         "active": true
     }
]

错误是：

Mar 31, 2018 6:28:37 PM io.vertx.ext.web.impl.RoutingContextImplBase
SEVERE: Unexpected exception in route
io.vertx.core.json.DecodeException: Failed to decode: Cannot deserialize instance of `java.util.LinkedHashMap` out of START_ARRAY token

TenantSecurity类：

class TenantSwitcherHandler(val vertx: Vertx) {
fun switchTenant(routingContext: RoutingContext) {
    val tenantId: String? = routingContext.request().headers().get(CommonConstants.HEADER_TENANT)
    if (tenantId.isNullOrEmpty()) {
        routingContext.response().setStatusCode(HttpResponseStatus.UNAUTHORIZED.code()).end(ErrorMessages.CANT_FIND_X_TENANT_ID_HEADER.value())
        return
    } else {
        vertx.eventBus().send(CommonConstants.SWITCH_TENANT, tenantId)
        routingContext.next()
    }
}
}

执行routingContext.next（）时发生错误... 我该如何解决这个问题？

P.S。：TenantSwitcherHandler类注册为安全处理程序，根据X-TENANT-ID标头值将指针切换到数据库

Answer 1

此问题与您发布的代码无关，实际上与您下一条路线有关您发送的数组不是有效的JSON对象你可以：

从客户端发送包裹：{"array":[...]}
使用getBodyAsJsonArray代替

以下是您可以使用的一些代码： final Vertx vertx = Vertx.vertx（）;

    Router router = Router.router(vertx);
    router.route().handler(BodyHandler.create());
    router.post("/").handler(c -> {
            JsonObject json = c.getBodyAsJson();
            // If you want to read JSON array, use this
            // JsonArray jsonArray = c.getBodyAsJsonArray();

            c.response().end(json.toString());
        }
    );
    vertx.createHttpServer().requestHandler(router::accept).listen(8443);


    System.out.println("Server started");
    WebClient client = WebClient.create(vertx);

    // This will succeed
    client.request(HttpMethod.POST, 8443, "localhost", "/").
            sendBuffer(Buffer.buffer("{}"), h -> {
                System.out.println(h.result().bodyAsString());
            });

    // This will fail
    client.request(HttpMethod.POST, 8443, "localhost", "/").
            sendBuffer(Buffer.buffer("[]"), h -> {
                System.out.println(h.result().bodyAsString());
    });

Vert.x，RoutingContext无法接收json数组

1 个答案: