java - Unirest JSONElement NoSuchMethodError

Question

我正在使用 Unirest 库通过以下代码行调用公开可用的 REST 端点:

public void callRest() {
    String url = "https://upstream.com/token"
    HttpResponse<JsonNode> response = (HttpResponse<JsonNode>) Unirest.post(url).
            field("username", "###").
            field("password", "###").
            field("grant_type", "password").
            field("client_id", "####").
            field("client_secret", "####").asJson().getBody();
}

我收到以下错误:

Exception in thread "main" java.lang.NoSuchMethodError: com.google.gson.Gson.newBuilder()Lcom/google/gson/GsonBuilder;
    at kong.unirest.json.JSONElement.<clinit>(JSONElement.java:39)
    at kong.unirest.JsonNode.<init>(JsonNode.java:44)
    at kong.unirest.JsonResponse.toJsonNode(JsonResponse.java:49)
    at kong.unirest.JsonResponse.getNode(JsonResponse.java:43)
    at kong.unirest.JsonResponse.<init>(JsonResponse.java:35)
    at kong.unirest.apache.BaseApacheClient.transformBody(BaseApacheClient.java:53)
    at kong.unirest.apache.ApacheClient.request(ApacheClient.java:127)
    at kong.unirest.BaseRequest.asJson(BaseRequest.java:213)

最突出的一行是

at kong.unirest.json.JSONElement.<clinit>(JSONElement.java:39)

unirest 库刚刚声明

private static transient final Gson PRETTY_GSON = new Gson().newBuilder().setPrettyPrinting().create();

在 JSONElement 类中。我遵循了 Unirest 文档中给出的确切指南，您可以在该文档中找到 here 。

我添加的 POM 依赖项如下:

        <dependency>
            <groupId>com.konghq</groupId>
            <artifactId>unirest-java</artifactId>
            <version>3.3.00</version>
        </dependency>
        <dependency>
            <groupId>com.konghq</groupId>
            <artifactId>unirest-java</artifactId>
            <version>3.3.00</version>
            <classifier>standalone</classifier>
        </dependency>

Answer 1

其实是和Unirest的版本冲突。当我删除时

        <dependency>
            <groupId>com.konghq</groupId>
            <artifactId>unirest-java</artifactId>
            <version>3.3.00</version>
            <classifier>standalone</classifier>
        </dependency> 

并通过 .asJson() 获取结果，然后一切都对我有用。