用httpPost对JSON发送和接收的例子

HTTPPost发送JSON：

privatestaticfinalStringAPPLICATION_JSON="application/json";

privatestaticfinalStringCONTENT_TYPE_TEXT_JSON="text/json";

publicstaticvoidhttpPostWithJSON(Stringurl,Stringjson)throwsException{

//将JSON进行UTF-8编码,以便传输中文

StringencoderJson=URLEncoder.encode(json,HTTP.UTF_8);

DefaultHttpClienthttpClient=newDefaultHttpClient();

HttpPosthttpPost=newHttpPost(url);

httpPost.addHeader(HTTP.CONTENT_TYPE,APPLICATION_JSON);

StringEntityse=newStringEntity(encoderJson);

se.setContentType(CONTENT_TYPE_TEXT_JSON);

se.setContentEncoding(newBasicHeader(HTTP.CONTENT_TYPE,APPLICATION_JSON));

httpPost.setEntity(se);

httpClient.execute(httpPost);

}

接收HTTPPost中的JSON:

publicstaticStringreceivePost(HttpServletRequestrequest)throwsIOException,UnsupportedEncodingException{

//读取请求内容

BufferedReaderbr=newBufferedReader(newInputStreamReader(request.getInputStream()));

Stringline=null;

StringBuildersb=newStringBuilder();

while((line=br.readLine())!=null){

sb.append(line);

}

//将资料解码

StringreqBody=sb.toString();

returnURLDecoder.decode(reqBody,HTTP.UTF_8);

}