java使用httpclient发送带json请求体的post请求_java发送post请求发送json

导入依赖

 <dependency>
	 <groupId>org.apache.httpcomponents</groupId>
	 <artifactId>httpclient</artifactId>
	 <version>4.5.6</version>
 </dependency>
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public class Main {

    private static final Logger logger = LoggerFactory.getLogger(Main.class);

    public static void main(String[] args) {
        // 请求地址
        String url = "https://xxx.xxx.com/xxx/";
        // 请求体
        String body = "{\"from\": \"en\",\"to\": \"ja\", \"src_text\": \"hello\", \"contrastFlag\": fals2e,  \"realmCode\": 0}";
        String resp = doTrans(url, body);
        logger.info("响应结果：{}",resp);
    }


    public static String doTrans(String url, String body) {
        // post请求
        HttpClient httpClient;
        HttpPost httpPost;
        HttpResponse response;
        String responseContent;

        try {
            // 创建 httpClient
            httpClient = HttpClients.createDefault();

            httpPost = new HttpPost(url);
            httpPost.addHeader("Accept", "*/*");
            httpPost.addHeader("Host", "xxx.xxx.com");
            httpPost.addHeader("Content-Type", "application/json;charset=utf8");

            // set entity
            httpPost.setEntity(new StringEntity(body, StandardCharsets.UTF_8));

            // 发送请求
            response = httpClient.execute(httpPost);

            // 得到响应
            HttpEntity httpEntity = response.getEntity();
            responseContent = EntityUtils.toString(httpEntity, "UTF-8");

            // 释放资源
            EntityUtils.consume(httpEntity);

            return responseContent;

        } catch (IOException e) {
            logger.info("请求异常, 错误信息为: {} ", e.getMessage());
            return "";
        }

    }


}

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