使用Apache-httpclient发送http请求，

pom.xml

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.6</version>
        </dependency>

话不多上代码

public static void main(String[] args) throws IOException {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(
                    new HttpGet(
                            new URIBuilder()
                                    .setScheme("Http")
                                    .setHost("192.168.1.4")
                                    .setPort(8080)
                                    .setPath("api/messageMarketDetail")
                                    .setParameters(
                                            new BasicNameValuePair("coinCode", "BTC_USDT"))
                                    .build()));
            String result = EntityUtils.toString(response.getEntity());
            response.close();
            System.out.print(result);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (URISyntaxException e) {
            e.printStackTrace();
        } finally {
            if (response != null) response.close();
        }
    }