Use Apache HttpClient to Post JSON data

Import Org.apache.commons.io.IOUtils;
Import Org.apache.http.HttpResponse;
Import org.apache.http.client.ClientProtocolException;
Import org.apache.http.client.HttpClient;
Import org.apache.http.client.entity.UrlEncodedFormEntity;
Import Org.apache.http.client.methods.HttpPost;
Import Org.apache.http.client.utils.URIBuilder;
Import org.apache.http.entity.StringEntity;
Import Org.apache.http.impl.client.HttpClientBuilder;
Import Org.apache.http.message.BasicHeader;
Import Org.apache.http.message.BasicNameValuePair;
Import Org.apache.http.protocol.HTTP;

Import Com.alibaba.fastjson.JSONObject;

InputStream is =NULL; Bytearrayoutputstream bout=NULL;Try{UriBuilder UriBuilder=NewUriBuilder (Envto.getsocketapiurl ()); HttpPost HttpPost=NewHttpPost (Uribuilder.build ()); //Httppost.setheader ("Accept", "Application/json");//after testing, this parameter is optionalHttppost.setheader ("Content-type", "Application/json");//This parameter must be setHttpClient HttpClient =httpclientbuilder.create (). build (); Jsonobject JSON=NewJsonobject (); Json.put ("Channel", channel); Json.put ("Action", action); Json.put ("Data", dataparm==NULL?Newjsonobject ():d ataparm); stringentity s=Newstringentity (json.tostring (), HTTP.      UTF_8); //s.setcontentencoding (New Basicheader (HTTP. Content_Type, "Application/json"));//after testing, this parameter is optionalhttppost.setentity (s); HttpResponse HttpResponse=Httpclient.execute (HttpPost); is=httpresponse.getentity (). getcontent (); byte[] data =New byte[1024]; intLength = 0; Bout=NewBytearrayoutputstream ();  while(Length=is.read (data))!=-1) {bout.write (data,0, length); The String result=NewString (Bout.tobytearray (), "UTF-8"); Logger.info ("Sendnotice2socketserver (): result is" +result);} Catch(URISyntaxException E1) {Logger.error ("Getallmembers4lucky (): IOException E1", E1);} Catch(unsupportedoperationexception e) {logger.error ("Getallmembers4lucky (): Unsupportedoperationexception E", E);} Catch(IOException e) {logger.error ("Getallmembers4lucky (): IOException E", E);} finally{    if(bout!=NULL) {ioutils.closequietly (bout); }    if(is!=NULL) {ioutils.closequietly (IS); }}

Backstage can use SPRINGMVC to do a restful API (self-Bing search how to build a restful API. PS: Recommend an unusually simple frame: Spark)

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Also found that more than one code could not be correctly submitted to the node. JS Service (has been 404-bad request, do not know where the problem, solve)

Then found another way to submit:

 Public StaticString postjson2socket (string url, String jsonstring,BooleanIsget,BooleanIsjson) {HttpURLConnection conn=NULL; OutputStream OS=NULL; InputStream is=NULL; BufferedReader BR=NULL; Try{        if(isget) {if(jsonstring = =NULL) {Conn= (httpurlconnection)Newurl (url). OpenConnection (); } Else{conn= (httpurlconnection)NewURL (url + "?" +jsonstring). OpenConnection (); } conn.setdooutput (false); Conn.setconnecttimeout (20000); Conn.setreadtimeout (20000); //conn.setusecaches (true);Conn.setrequestproperty ("Accept", "application/json,text/html"); Conn.setrequestproperty ("Content-type", "Application/json"); } Else{conn= (httpurlconnection)Newurl (url). OpenConnection (); Conn.setdooutput (true); Conn.setreadtimeout (10000); Conn.setrequestmethod ("POST"); Conn.setrequestproperty ("Content-type", Isjson? "Application/json": "application/x-www-form-urlencoded"); OS=Conn.getoutputstream (); Os.write (Jsonstring.getbytes ("UTF-8"));        Os.flush (); } is=Conn.getinputstream (); BR=NewBufferedReader (NewInputStreamReader (IS, "UTF-8")); StringBuffer SB=NewStringBuffer ();        String Line;  while(line = Br.readline ())! =NULL) {sb.append (line). Append ("\ n");        } br.close ();        Is.close ();        Conn.disconnect (); returnsb.tostring (); }    Catch(Exception e) {logger.error (e); return""; }    finally{ioutils.closequietly (OS);        ioutils.closequietly (BR);        Ioutils.closequietly (IS); if(conn!=NULL) {conn.disconnect (); }    }}

This method can be successfully submitted to Nodejs.

Use Apache HttpClient to Post JSON data