接口自动化如何自定义工具类

在接口自动化中，自定义工具类可以提高代码复用性和可维护性。下面是一个自定义工具类的示例：

public class HttpUtils {
    private static final Logger logger = LoggerFactory.getLogger(HttpUtils.class);

    /**
     * 发送 GET 请求
     * @param url 请求 URL
     * @param params 请求参数
     * @return 响应内容
     */
    public static String sendGet(String url, Map<String, String> params) {
        String result = "";
        try {
            // 构造请求参数
            StringBuilder paramsStr = new StringBuilder();
            for (Map.Entry<String, String> entry : params.entrySet()) {
                paramsStr.append(entry.getKey()).append("=").append(URLEncoder.encode(entry.getValue(), "UTF-8")).append("&");
            }
            if (paramsStr.length() > 0) {
                paramsStr.deleteCharAt(paramsStr.length() - 1);
            }
            String fullUrl = url + "?" + paramsStr.toString();

            // 发送请求
            CloseableHttpClient httpClient = HttpClients.createDefault();
            HttpGet httpGet = new HttpGet(fullUrl);
            CloseableHttpResponse httpResponse = httpClient.execute(httpGet);

            // 处理响应
            HttpEntity entity = httpResponse.getEntity();
            if (entity != null) {
                result = EntityUtils.toString(entity);
            }
            EntityUtils.consume(entity);
            httpResponse.close();
            httpClient.close();
        } catch (Exception e) {
            logger.error("Failed to send GET request: {}", e.getMessage());
        }
        return result;
    }

    /**
     * 发送 POST 请求
     * @param url 请求 URL
     * @param params 请求参数
     * @return 响应内容
     */
    public static String sendPost(String url, Map<String, String> params) {
        String result = "";
        try {
            // 构造请求参数
            List<NameValuePair> paramList = new ArrayList<>();
            for (Map.Entry<String, String> entry : params.entrySet()) {
                paramList.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
            }

            // 发送请求
            CloseableHttpClient httpClient = HttpClients.createDefault();
            HttpPost httpPost = new HttpPost(url);
            httpPost.setEntity(new UrlEncodedFormEntity(paramList, "UTF-8"));
            CloseableHttpResponse httpResponse = httpClient.execute(httpPost);

            // 处理响应
            HttpEntity entity = httpResponse.getEntity();
            if (entity != null) {
                result = EntityUtils.toString(entity);
            }
            EntityUtils.consume(entity);
            httpResponse.close();
            httpClient.close();
        } catch (Exception e) {
            logger.error("Failed to send POST request: {}", e.getMessage());
        }
        return result;
    }
}

该工具类实现了发送 GET 和 POST 请求的方法，可以通过传入 URL 和参数来发送请求，并返回响应内容。使用时，只需要在测试代码中调用该方法即可：

Map<String, String> params = new HashMap<>();
params.put("key1", "value1");
params.put("key2", "value2");
String result = HttpUtils.sendGet("http://example.com/api", params);
System.out.println(result);

这样，就可以实现接口自动化测试中的 HTTP 请求部分的代码复用，提高代码的可维护性和可读性。