postman form-data传参java实现-Toy模板网

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postman form-data传参java实现,解决方案,java,开发语言

java实现：

    /**
     * form表单提交
     * @param url
     * @param map
     * @return
     */
    public static String doPostForm(String url, Map<String, Object> map) {
        String strResult = "";
        // 1. 获取默认的client实例
        CloseableHttpClient client = HttpClients.createDefault();
        // 2. 创建httppost实例
        HttpPost httpPost = new HttpPost(url);
        httpPost.setHeader("Content-Type","application/x-www-form-urlencoded;charset=UTF-8");
        // 3. 创建参数队列（键值对列表）
        List<NameValuePair> paramPairs = new ArrayList<>();
        Set<String> keySet = map.keySet();
        for (String key : keySet) {
            Object val = map.get(key);
            paramPairs.add(new BasicNameValuePair(key, val.toString()));
        }
        UrlEncodedFormEntity entity;
        try {
            // 4. 将参数设置到entity对象中
            entity = new UrlEncodedFormEntity(paramPairs, "UTF-8");
            System.out.println("封装的参数："+entity);
            // 5. 将entity对象设置到httppost对象中
            httpPost.setEntity(entity);
            // 6. 发送请求并回去响应
            CloseableHttpResponse resp = client.execute(httpPost);
            try {
                // 7. 获取响应entity
                HttpEntity respEntity = resp.getEntity();
                strResult = EntityUtils.toString(respEntity, "UTF-8");
            } finally {
                // 9. 关闭响应对象
                resp.close();
            }
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            // 10. 关闭连接，释放资源
            try {
                client.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return strResult;
    }

第二种方式：

导入依赖：文章来源地址https://www.toymoban.com/news/detail-525945.html

  <!--httpclient-->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.5.8</version>
        </dependency>
        <dependency>
            <groupId>commons-httpclient</groupId>
            <artifactId>commons-httpclient</artifactId>
            <version>3.1</version>
        </dependency>


    /**
     * @param params 非文件参数
     * @param url    请求地址
     * @param header 请求头信息（没有传null）
     * @return String
     **/
    public static String sendPostRequest(String url, Map<String, Object> params, Map<String, String> header) {
        try {
            PostMethod postMethod = new PostMethod(url);
            postMethod.setRequestHeader("Content-Type", AppConsts.CONTENT_TYPE_FORM + ";charset=" + AppConsts.ENCODING_UTF8);
            if (!CollectionUtils.isEmpty(header)){
                header.forEach(postMethod::setRequestHeader);
            }
            NameValuePair[] data = new NameValuePair[params.size()];
            int i = 0;
            for (String key : params.keySet()) {
                data[i] = new NameValuePair(key, params.get(key) == null ? "" : params.get(key).toString());
                i++;
            }

            postMethod.setRequestBody(data);

            HttpClient httpClient = new HttpClient();
            int response = httpClient.executeMethod(postMethod); // 执行POST方法
            String result = postMethod.getResponseBodyAsString();

            return result;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }

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