Java做接口与安卓的对接

来源：互联网发布：淘宝网页装修编辑：程序博客网时间：2024/06/05 07:26
public String CarrierQueryPort(){       HttpServletRequest request=this.getRequest();         //此处必须进行数据压缩       ByteArrayOutputStream outStream = new ByteArrayOutputStream();       GZIPOutputStream gzipOut = null;       HttpServletResponse response = this.getResponse();       JSONArray jsonArray=new JSONArray();       JSONObject jsonObj = null;       BufferedReader br = null;       //用来接收拼装完成的json       String appMsg = "";        //查询条件        //安卓端传过来的json中的key值        String carrierOutNo = "";        String unitName = "";        String exportCode = "";        Date qStartDate = null;        Date qEndDate = null;        int startIndex = 0;        int pageSize = 0;        //求符合条件的合计数        String msgTotalNum = "";        try{            gzipOut = new GZIPOutputStream(outStream);            //接收json            //采用流的方式取出json数据，并将读出来的字符串拼装成json            br=new BufferedReader(                    new InputStreamReader((ServletInputStream)request.getInputStream()) );            String line=null;            StringBuffer sb=new StringBuffer();            while( (line=br.readLine())!=null ){                sb.append(line);            }            appMsg=sb.toString();            try{                //如果传递过来的数据有异常，如乱码导致的双引号丢失造成无法正常拼装成json数据做的异常处理                jsonObj=JSONObject.fromObject(appMsg);              }catch(Exception e){                gzipOut.write(0);                gzipOut.close();                return NONE;            }            //获取查询条件值            startIndex=jsonObj.getInt("startIndex");            pageSize=jsonObj.getInt("endIndex")-startIndex+1;            carrierOutNo=jsonObj.getString("carrierOutNo");            exportCode=jsonObj.getString("exportCode");            unitName=jsonObj.getString("unitName");            unitName=new String(new String(unitName.getBytes(),"utf-8").getBytes(),"GBK");              //PublicFunction写的公共类strToDate方法                          qStartDate=PublicFunction.getDate(jsonObj.getString("qStartDate"));            qEndDate=PublicFunction.getDate(jsonObj.getString("qEndDate"));            //放入query            DetachedCriteria query=DetachedCriteria.forClass(ExportCarrier.class);            this.addParameters(query, carrierOutNo, unitName,                 exportCode,qStartDate,qEndDate);            //符合条件json数据，具体实现代码不贴出            jsonArray = JSONArray.fromObject(carrierService.getCarrierTree(query,pageSize,startIndex));            query=DetachedCriteria.forClass(ExportCarrier.class);            this.addParameters(query, carrierOutNo, unitName,                     exportCode,qStartDate,qEndDate);            //符合记录数，具体实现代码不贴出           msgTotalNum=carrierService.getEntityCountByCriteria(query)+"";            jsonObj.put("carrierList", jsonArray);            jsonObj.put("msgTotalNum", msgTotalNum);            jsonObj.remove("carrierOutNo");            jsonObj.remove("exportCode");            jsonObj.remove("unitName");            System.out.println(jsonObj.toString());            if(jsonObj!=null){            //压缩传输出去            gzipOut.write(jsonObj.toString().getBytes("utf-8"));                gzipOut.close();                byte[] temp = outStream.toByteArray();                response.setHeader("Content-Encoding","gzip");                response.setHeader("Content-Length", temp.length+"");                response.getOutputStream().write(temp);            }        }catch(Exception e){            e.printStackTrace();        }        return NONE;    }
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