String reportJson ="json内容......"
String reportType = "类型";
HttpURLConnection con = 
    (HttpURLConnection)new URL("http://localhost:8080/restful/data").openConnection();
con.setRequestMethod("POST"); //设置为post提交
con.setRequestProperty("type", reportType ); //设置header["类型"]


BufferedWriter bout = new BufferedWriter(new OutputStreamWriter(con.getOutputStream()));
        bout.write(reportJson);
        bout.flush();
        bout.close();

        // 取得输入流，并使用Reader读取
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                con.getInputStream()));

        String lines;
        while ((lines = reader.readLine()) != null) {
            System.out.println(lines);
        }
        reader.close();