HTTP interface Invocation

public class Httptest {

String creatorderurl= "Http://xxx.xxx.net/scriptParams/runScripts";

public void Testcrestorder () {
    System.out.println ("url==" +creatorderurl);//
    HttpRequest (Creatorderurl);
    System.out.println ("url2==" +httprequest (Creatorderurl));
}

/**get Request */
public static string HttpRequest (String req_url) {
StringBuffer buffer = new StringBuffer ();
try {
URL url = new URL (req_url);
HttpURLConnection httpurlconn = (httpurlconnection) url.openconnection ();

Httpurlconn.setdooutput (FALSE);
Httpurlconn.setdoinput (TRUE);
Httpurlconn.setusecaches (FALSE);

Httpurlconn.setrequestmethod ("GET");
Httpurlconn.connect ();

Converts the returned input flow to a string
InputStream InputStream = Httpurlconn.getinputstream ();
InputStreamReader InputStreamReader = new InputStreamReader (InputStream, "utf-8");
BufferedReader BufferedReader = new BufferedReader (InputStreamReader);

String str = NULL;
while ((str = bufferedreader.readline ()) = null) {
Buffer.append (str);
}
Bufferedreader.close ();
Inputstreamreader.close ();
Freeing resources
Inputstream.close ();
InputStream = null;
Httpurlconn.disconnect ();

} catch (Exception e) {
System.out.println (E.getstacktrace ());
}
return buffer.tostring ();
}

/**post Request
*
*/
/**
* Request to send the Post method to the specified URL
*
* @param URL
* Send the requested URL
* @param param
* Request parameters, request parameters should be in the form of name1=value1&name2=value2.
* @param isproxy
* Whether to use proxy mode
* @return The response result of the remote resource represented
*/
public static string Sendpost (string url, string Param,boolean isproxy) {
OutputStreamWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realurl = new URL (URL);
HttpURLConnection conn = null;
if (IsProxy) {//Use proxy mode
@SuppressWarnings ("Static-access")
Proxy proxy = new Proxy (Proxy.Type.DIRECT.HTTP, new Inetsocketaddress (ProxyHost, ProxyPort));
conn = (httpurlconnection) realurl.openconnection (proxy);
}else{
conn = (httpurlconnection) realurl.openconnection ();
}
Opening and linking between URLs

To send a POST request, you must set the following two lines
Conn.setdooutput (TRUE);
Conn.setdoinput (TRUE);
Conn.setrequestmethod ("POST"); Post method


To set common request properties

Conn.setrequestproperty ("Accept", "*/*");
Conn.setrequestproperty ("Connection", "keep-alive");
Conn.setrequestproperty ("User-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ");
Conn.setrequestproperty ("Content-type", "application/x-www-form-urlencoded");

Conn.connect ();

Gets the output stream corresponding to the URLConnection object
out = new OutputStreamWriter (Conn.getoutputstream (), "UTF-8");
Send Request parameters
Out.write (param);
Buffer for flush output stream
Out.flush ();
Defines the response of the BufferedReader input stream to read the URL
in = new BufferedReader (
New InputStreamReader (Conn.getinputstream ()));

String Line;
while (line = In.readline ()) = null) {
result + = line;
}
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("Send POST request exception!") "+e);
E.printstacktrace ();
}
Use the finally block to close the output stream, input stream
finally{
try{
if (out!=null) {
Out.close ();
}
if (in!=null) {
In.close ();
}
}
catch (IOException ex) {
Ex.printstacktrace ();
}
}
return result;
}
/**
* Send an HTTP POST request
*
* @param xmlinfo
* JSON converted into a string
* @param URL
* Request URL
* @return Return information
*/
public static string Dohttppost (String xmlinfo, String URL) {
System.out.println ("Originating Data:" + xmlinfo);
byte[] XmlData = Xmlinfo.getbytes ();
InputStream instr = null;
Java.io.ByteArrayOutputStream out = null;
try {
URL url = new url (URL);
URLConnection Urlcon = Url.openconnection ();
Urlcon.setdooutput (TRUE);
Urlcon.setdoinput (TRUE);
Urlcon.setusecaches (FALSE);
Urlcon.setrequestproperty ("Content-type", "Application/json");
Urlcon.setrequestproperty ("CharSet", "Utf-8");
Urlcon.setrequestproperty ("Content-length",
String.valueof (xmldata.length));
System.out.println (string.valueof (xmldata.length));
DataOutputStream printout = new DataOutputStream (
Urlcon.getoutputstream ());

Printout.write (XmlData);
Printout.flush ();
Printout.close ();
InStr = Urlcon.getinputstream ();
byte[] bis = Ioutils.tobytearray (instr);
String responsestring = new string (bis, "UTF-8");
if ((responsestring = = null) | | ("". Equals (Responsestring.trim ()))) {
SYSTEM.OUT.PRINTLN ("return null");
}
SYSTEM.OUT.PRINTLN ("Return data is:" + responsestring);
return responsestring;

} catch (Exception e) {
E.printstacktrace ();
return "0";
} finally {
try {
Out.close ();
Instr.close ();

} catch (Exception ex) {
return "0";
}
}
}
Method Two:
/**
* Request to send the Post method to the specified URL
*
* @param URL
* Send the requested URL
* @param param
* Request parameters, request parameters should be in the form of name1=value1&name2=value2.
* @return The response result of the remote resource represented
*/
public static string sendpostnew (string url, string param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realurl = new URL (URL);
Opening and linking between URLs
URLConnection conn = Realurl.openconnection ();

To set common request properties
Conn.setrequestproperty ("Accept", "*/*");
Conn.setrequestproperty ("Connection", "keep-alive");
Conn.setrequestproperty ("User-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) ");

To send a POST request, you must set the following two lines
Conn.setdooutput (TRUE);
Conn.setdoinput (TRUE);

Gets the output stream corresponding to the URLConnection object
out = new PrintWriter (Conn.getoutputstream ());
Send Request parameters
Out.print (param);
Buffer for flush output stream
Out.flush ();
Defines the response of the BufferedReader input stream to read the URL
in = new BufferedReader (
New InputStreamReader (Conn.getinputstream ()));
String Line;
while (line = In.readline ()) = null) {
result + = line;
}
} catch (Exception e) {
SYSTEM.OUT.PRINTLN ("Send POST request exception!") "+e);
E.printstacktrace ();
}
Use the finally block to close the output stream, input stream
finally{
try{
if (out!=null) {
Out.close ();
}
if (in!=null) {
In.close ();
}
}
catch (IOException ex) {
Ex.printstacktrace ();
}
}
return result;
}
｝

HTTP interface Invocation