泽西休息客户端不添加查询参数 [英] Jersey rest client not adding query parameters

问题描述

我正在尝试为Google搜索API创建一个简单的Jersey rest客户端.

I'm trying to make a simple jersey rest client for google search api.

Client client = ClientBuilder.newClient();
WebTarget target = client.target("https://www.googleapis.com/customsearch/v1");
target.queryParam("q", "mobile");
Response response = target.request().get();
System.out.println(response.readEntity(String.class));

您已经注意到，我没有包含key和cx.不用担心，这只是一个简单的演示. 访问网址https://www.googleapis.com/customsearch/v1?q=mobile时，响应为

As you've noticed I haven't included key and cx. Don't worry about that, it's just a simple demo. When visiting the url https://www.googleapis.com/customsearch/v1?q=mobile, the response is

{
 "error": {
  "errors": [
   {
    "domain": "usageLimits",
    "reason": "dailyLimitExceededUnreg",
    "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup.",
    "extendedHelp": "https://code.google.com/apis/console"
   }
  ],
  "code": 403,
  "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup."
 }
}

这是正确的，因为我没有包含key和cx.当我执行上面的代码时，我得到的响应是

Which is correct since I haven't included key and cx. When I execute the code above, the response I'm getting is

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "required",
    "message": "Required parameter: q",
    "locationType": "parameter",
    "location": "q"
   }
  ],
  "code": 400,
  "message": "Required parameter: q"
 }
}

这等效于不带任何参数(https://www.googleapis.com/customsearch/v1)访问url，尽管我已经添加了此target.queryParam("q", "mobile");.我在做错什么吗?

Which is equivalent of visiting the url without any parameters (https://www.googleapis.com/customsearch/v1), although I've added this target.queryParam("q", "mobile");. Am I doing something wrong?

上面的代码属于Mavenized项目，其依赖项为

The code above belongs to a mavenized project and the dependency is

<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-client</artifactId>
    <version>2.14</version>
</dependency>

推荐答案

链接通话

Response response= client.target("https://www.googleapis.com/customsearch/v1")
.queryParam("q", "mobile").request().get();

来自文档:

返回:一个新的目标实例.

注意:-如果未链接，则获取新创建的 webtarget 实例并使用它.

Note :- If not chaining then get newly created webtarget instance and use it.

WebTarget webTarget = client.target(snapshotGeneratorUrl);
webTarget = webTarget.queryParam("foo","foo").queryParam("bar",bar);
Response response = webTarget.request().get();

这篇关于泽西休息客户端不添加查询参数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IT屋！