Method postForm

src/main/java/com/github/utils/OkHttpUtil.java:13–40

(String url, Map<String, String> headers, Map<String, String> params)

    // POST请求，表单参数
    public static String postForm(String url, Map<String, String> headers, Map<String, String> params) throws IOException {
        FormBody.Builder formBuilder = new FormBody.Builder();
        if (params != null && !params.isEmpty()) {
            for (Map.Entry<String, String> entry : params.entrySet()) {
                formBuilder.add(entry.getKey(), entry.getValue());
            }
        }
        RequestBody body = formBuilder.build();

        Request.Builder builder = new Request.Builder()
            .url(url)
            .post(body);

        if (headers != null && !headers.isEmpty()) {
            for (Map.Entry<String, String> entry : headers.entrySet()) {
                builder.addHeader(entry.getKey(), entry.getValue());
            }
        }

        Request request = builder.build();
        try (Response response = client.newCall(request).execute()) {
            if (!response.isSuccessful()) {
                throw new IOException("Unexpected code " + response);
            }
            assert response.body() != null;
            return response.body().string();
        }
    }

    public static String postForm(String url, Map<String, String> headers, String data) throws IOException {