如何在java中发送Https Post请求 [英] How to send Https Post request in java

问题描述

我想从java代码登录应用程序。
这是我的代码......

I want to login to application from java code. Here is my code...

String httpsURL = "https://www.abcd.com/auth/login/";

String query = "email="+URLEncoder.encode("[e-mail]","UTF-8"); 
query += "&";
query += "password="+URLEncoder.encode("abcd","UTF-8") ;

URL myurl = new URL(httpsURL);
HttpsURLConnection con = (HttpsURLConnection)myurl.openConnection();
con.setRequestMethod("POST");

con.setRequestProperty("Content-length", String.valueOf(query.length())); 
con.setRequestProperty("Content-Type","application/x-www- form-urlencoded"); 
con.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0;Windows98;DigExt)"); 
con.setDoOutput(true); 
con.setDoInput(true); 

DataOutputStream output = new DataOutputStream(con.getOutputStream());  


output.writeBytes(query);

output.close();

DataInputStream input = new DataInputStream( con.getInputStream() ); 



for( int c = input.read(); c != -1; c = input.read() ) 
System.out.print( (char)c ); 
input.close(); 

System.out.println("Resp Code:"+con .getResponseCode()); 
System.out.println("Resp Message:"+ con .getResponseMessage()); 

但我无法登录，只返回登录页面。

but i can not login, it returns back only login page.

如果有人可以，请帮助我理解我做错了什么。

If anybody can, please help me to understand what am i doing wrong.

推荐答案

错误： - （在 www- form 中间有额外的空间）

Wrong :- (Extra space is there in mid of www- form)

con.setRequestProperty("Content-Type","application/x-www- form-urlencoded"); 

正确

 con.setRequestProperty("Content-Type","application/x-www-form-urlencoded"); 

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