调用远程接口，返回数据

最新推荐文章于 2022-10-04 15:24:01 发布

醉ぃ灬清风。

最新推荐文章于 2022-10-04 15:24:01 发布

阅读量1.2k

点赞数

CC 4.0 BY-SA版权

分类专栏：编程技术 java mysql 文章标签： java eclipse spring string 数据

本文链接：https://blog.youkuaiyun.com/u010964869/article/details/53389844

编程技术同时被 3 个专栏收录

107 篇文章

订阅专栏

java

90 篇文章

订阅专栏

mysql

11 篇文章

订阅专栏

本文提供了一个使用Java实现HTTP POST请求的例子。通过该示例，读者可以了解到如何设置连接属性、发送JSON数据并接收响应。文章详细展示了创建URL、设置请求方法及头部信息的过程，并附带了异常处理。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

public String httpPost(String urlStr, ArrayList<HashMap<String, Object>> list){
        URL connect;
        StringBuffer responseData = new StringBuffer();
        try {
            connect =  new URL(urlStr);
            //开启连接
            HttpURLConnection connection = (HttpURLConnection) connect.openConnection();
            /*为连接设置参数*/
            connection.setRequestMethod("POST");
            connection.setDoInput(true);
            connection.setDoOutput(true);
            connection.setDefaultUseCaches(false);  //post方法禁用缓存
            connection.setInstanceFollowRedirects(true);
            connection.setRequestProperty("Accept", "*/*");
            connection.setRequestProperty("Connection", "keep-alive");
            connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0");
            OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream(),"UTF-8");
            JSONArray jsonArray = JSONArray.fromObject(list);
            String str = "str="+jsonArray.toString();
            writer.write(str);
            writer.flush();
            BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8"));
            String line;
            while ((line=reader.readLine()) != null) {
                responseData.append(line);
            }
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return responseData.toString();
    }