java http请求并返回字符串

最新推荐文章于 2025-03-08 00:15:00 发布

原创最新推荐文章于 2025-03-08 00:15:00 发布 · 860 阅读

1 ·

CC 4.0 BY-SA版权

文章标签：

#java

本文提供了一个使用Java实现HTTP POST请求的具体示例。通过构造URL并设置必要的HTTP头信息，文章展示了如何发送带有参数的数据，并从服务器接收响应。

public static String getHttpData(String url, String data) throws Exception{
        StringBuffer resultData = new StringBuffer();
        URL postUrl = new URL(url);// url到？
        HttpURLConnection connection = (HttpURLConnection) postUrl.openConnection();
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setRequestMethod("POST");
        connection.setUseCaches(false);
        connection.setInstanceFollowRedirects(true);
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        OutputStreamWriter osw = new OutputStreamWriter(connection.getOutputStream());
        osw.write(data); // data是url问号之后的所有参数集合
        osw.flush();
        osw.close();
        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String line;
        while ((line = reader.readLine()) != null) {
            resultData.append(line);
        }
        reader.close();
        return resultData.toString();
    }