学步园

1.接收json数据

 BufferedReader br =
                new BufferedReader(new InputStreamReader
                    ((ServletInputStream)req.getInputStream(), "utf-8"));
            String temp;
            while ((temp = br.readLine()) != null) {
                sb.append(temp);
            }
            br.close();

获取相关属性：input.getString("属性名"):

2.返回json数据

resp.setContentType("application/x-javascript; charset=utf-8");
            PrintWriter pw = resp.getWriter();
            String str = output.toString();
            
            pw.write(str);
            pw.flush();
            pw.close();