Java implementation HTTP Interface

Package com.lvxh.service;

Import java.net.HttpURLConnection;
Import Java.net.URL;
Import Java.nio.charset.StandardCharsets;

Import Org.apache.commons.io.IOUtils;
Import Org.apache.commons.lang3.StringUtils;
Import Org.apache.http.HttpResponse;
Import org.apache.http.client.HttpClient;
Import org.apache.http.client.entity.UrlEncodedFormEntity;
Import Org.apache.http.client.methods.HttpPost;
Import org.apache.http.impl.client.HttpClients;
Import Org.apache.http.util.EntityUtils;

Import com.lvxh.bean.NameValuePairList;

/**
* HTTP Tool class
*
* @author Lvxh
* @since V100R001C02
* @version V100R001C02
*/
Public abstract class Httputil {


/**
* Usage String url= "http://192.168.2.181:8080/sic/app/login.action"; Map
* <string,string>map = new hashmap<> (); Map.put ("Domaincode", "SA60");
* Map.put ("LoginName", "root"); Map.put ("Password", "Rootroot");
* SYSTEM.OUT.PRINTLN (Sendsms (Url,map));
*
* @param URL
* String Request Address
*
* @param list
* List of key-value pairs
*
* @return String Returns the result set
*/
public static string post (string url, namevaluepairlist list) {
HttpClient HttpClient = Httpclients.createdefault ();
HttpPost HttpPost = new HttpPost (URL);
String strresult = "";
try {
Httppost.addheader ("Content-type", "application/x-www-form-urlencoded");
Httppost.setentity (New Urlencodedformentity (List.getlist (), "UTF-8"));

HttpResponse response = Httpclient.execute (HttpPost);
if (Response.getstatusline (). Getstatuscode () = = 200) {
strresult = entityutils.tostring (Response.getentity (), standardcharsets.utf_8);
} else {
strresult = string.valueof (Response.getstatusline (). Getstatuscode ());
}
} catch (Exception e) {
E.printstacktrace ();
}
return strresult;
}

/**
*. Send HTTP requests in JSON (Application/json) and return the corresponding messages in real time
*
* @param URL
* Request URL
* @param data
* Request data
* @return Request the appropriate
*/
public static string sendjsonpostimmediate (string URL, string data) {
Return sendpost (URL, data.replaceall ("\\\\u003d", "="), "Application/json", 1000);
}

/**
*. Send the HTTP request in JSON (Application/json) and return the corresponding message
*
* @param URL
* Request URL
* @param data
* Request data
* @return Request the appropriate
*/
public static string Sendjsonpost (string url, string data,int timeout) {
Return sendpost (URL, data.replaceall ("\\\\u003d", "="), "Application/json", timeout);
}

/**
*. Send the HTTP request as a form (application/x-www-form-urlencoded) and return the corresponding message
*
* @param URL
* Request URL
* @param data
* Request data
* @return Request the appropriate
*/
public static string Sendformpost (string url, string data,int timeout) {
Return sendpost (URL, data.replaceall ("\\\\u003d", "="), "application/x-www-form-urlencoded", timeout);
}


/**
*. send an HTTP request and return the appropriate message
*
* @param URL
* Request URL
* @param data
* Request data
* @param contentType
* Request Type
* @param timeout
* Request Timeout setting
* @return Request the appropriate
*/
private static string Sendpost (string URL, string data, string contentType, int timeout) {
StringBuffer SBF = new StringBuffer ();
HttpURLConnection connection = null;
try {
Connection = (httpurlconnection) new URL (URL). OpenConnection ();
Connection.setdoinput (TRUE);
Connection.setdooutput (TRUE);
Connection.setrequestmethod ("POST");
Connection.setconnecttimeout (timeout);
Connection.setreadtimeout (timeout);
Connection.setusecaches (FALSE);
Connection.setinstancefollowredirects (TRUE);
Connection.setrequestproperty ("Content-type", ContentType);
Connection.connect ();

Ioutils.write (data, Connection.getoutputstream (), standardcharsets.utf_8);

For (String Line:IOUtils.readLines (Connection.getinputstream (), standardcharsets.utf_8)) {
Sbf.append (line);
}
} catch (Exception e) {
}
finally{
if (connection! = null) {
Connection.disconnect ();
}
}
return sbf.tostring ();
}

/**
* Usage String url= "http://192.168.2.181:8080/sic/app/login.action"; Map
* <string,string>map = new hashmap<> (); Map.put ("Domaincode", "SA60");
* Map.put ("LoginName", "root"); Map.put ("Password", "Rootroot");
* SYSTEM.OUT.PRINTLN (Sendsms (Url,map));
*
* @param
* The type of the desired object
*
* @param URL
* String Request Address
*
* @param list
* List of key-value pairs
*
* @param classoft
* Classoft Conversion type
*
* @return Object Returns the result set
*/
public static <T> T getpostobj (String URL, namevaluepairlist list, class<t> classoft) {
String jsonstring = post (URL, list);
if (Stringutils.isempty (jsonstring)) {
return null;
}
Return Jsonutil.getobject (jsonstring, Classoft);
}
}

Java implementation HTTP Interface