java代码跨域通用方法

Posted 2021-01-09 bin93

/**
 * 通用的跨越调接口方法
 * @param path 请求的url路径
 * @return
 */
public static String getHttpResponse(String path) {
    try {
        URL url = new URL(path);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        PrintWriter out = null;
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Accept-Language", UserContext.getLanguage());
        conn.setRequestProperty("accept", "*/*");
        conn.setRequestProperty("connection", "Keep-Alive");
        conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        out = new PrintWriter(conn.getOutputStream());
        out.flush();
        InputStream is = conn.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        String responseString = "";
        String str = "";
        while ((str = br.readLine()) != null) {
            responseString += str;
        }
        is.close();
        conn.disconnect();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return responseString;
}