快速入门Servlet之Response JSON(十二)

静态Json

 /**
         * 发送json格式
         */
        resp.setHeader("Access-Control-Allow-Origin", "*");
        resp.setCharacterEncoding("utf-8");
        resp.setContentType("application/json; charset=utf-8");
        PrintWriter out = resp.getWriter();
        out.write("{\"name\":\"zzq\"}");
        out.close();

动态Json

借助于阿里巴巴的JSON库：fastjson
下载地址：https://github.com/alibaba/fastjson

out = resp.getWriter();
            object = new JSONObject();
            object.put("state", "register success");
            object.put("id", 1);
            out.write(String.valueOf(object));
            out.close();