如何發送帖子？

Question

如何使用Java發送帖子？

我正在使用selenium和java對Web應用程序運行一些自動化測試。 我的java代碼的一部分，我想發送一個帶post數據郵件的http post請求到一個php頁面。

後的數據應該是這樣的「emails=username@domain.com」

出於某種原因，我似乎無法得到它的工作，我覺得自己的代碼是正確的，但想也許有些更多的眼睛看它，並可以幫助我確定問題

它編譯和運行，但它似乎並沒有將發佈數據發送到php文件，它看起來像。

那麼有沒有辦法輸出它正在發送到PHP文件？

而且，有沒有辦法從服務器返回消息？如「無效的請求」或成功或其他。

而且我不確定它在代碼中缺少什麼，如果我錯過了什麼，只要完成正確的POST。 ：

package drtest; 

//for selenium each part of the test 
import org.testng.annotations.AfterMethod; 
import org.testng.annotations.BeforeMethod; 
import org.testng.annotations.Test; 

// classes for selenium to work properly in java 
import com.thoughtworks.selenium.DefaultSelenium; 
import com.thoughtworks.selenium.SeleneseTestBase; 
import com.thoughtworks.selenium.Selenium; 

//java .net libraries 
import java.net.URL; 
import java.net.URLEncoder; 
import java.net.HttpURLConnection; 
import java.net.MalformedURLException; 
import java.io.*; 

//selenium java integration 
public class devicereplication extends SeleneseTestBase { 
     public Selenium selenium; 

     @BeforeMethod // this part of the code points to selenium server and launches the web browser 
     public void beforeMethod() { 
      selenium = new DefaultSelenium("localhost", 4444, "firefox", 
          "https://example.com"); 
      selenium.start(); 
     } 


     @Test // this part of the code is the actual test being run in both java and selenium 
     public void testme() { 

     //login steps 
     selenium.open("/dashboard/login/"); 
     selenium.click("id=email"); 
     selenium.type("id=email", "username@domain.com"); 
     selenium.type("id=pass", "strongpassword"); 
     selenium.click("id=submitInfo"); 
     selenium.waitForPageToLoad("30000"); 

     // deploy agent steps 
     selenium.open("/dashboard/"); 
     selenium.click("link=Deployment"); 
     selenium.click("link=Deploy Agents"); 
     selenium.waitForPageToLoad("90000"); 

     try { 

     int userCount = 5; // how many automation users in the db you are adding a device to. 
     int counter = 1; 
     String emailDomain = "@domain.com"; 
     String userName = "username"; 

     for (;counter <= userCount; counter ++) //this loop adds incremental values to each e-mail/username combo. 
     { 
     String combinedEmail = (userName+counter+emailDomain); //turns the email name into a string that can be looped. 


     String request = "https://examples.com/example/example.php"; 
     URL url = new URL(request); //requests url 

     String param=URLEncoder.encode(combinedEmail, "UTF-8"); 

      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 

      connection.setDoOutput(true); 
      connection.setDoInput(true); 
      connection.setInstanceFollowRedirects(false); 
      connection.setRequestMethod("POST"); 
     // connection.setRequestProperty("charset", "utf-8"); 
      connection.setRequestProperty("Host", "example.com"); 
      connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.0"); 
      connection.setRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"); 
      connection.setRequestProperty("Accept-Language", "en-US,en;q=0.5"); 
      connection.setRequestProperty("Accept-Encoding", "gzip, deflate"); 
     // connection.setRequestProperty("X-Requested-With", "XMLHttpRequest"); 
     // connection.setRequestProperty("X-Request", "JSON"); 
      connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8"); 
      connection.setRequestProperty("Referer", "https://example.com/example/example.php"); 
     // connection.setRequestProperty("Content-Length", "344"); 
      connection.setUseCaches(false); 


        DataOutputStream wr = new DataOutputStream(connection.getOutputStream()); 
        wr.writeBytes(param); 
        wr.flush(); 
        wr.close(); 
        connection.disconnect(); 
     } 

     } catch(MalformedURLException ex) { 
        System.out.println(ex.getMessage()); 
       } catch(IOException ex){ 
        System.out.println(ex.getMessage()); 
       } 
} 
@AfterMethod 
     public void afterMethod() { 
      //selenium.stop(); 
     } 

} 

Answer 1

您需要獲得實際的響應才能獲得實際連接的連接。像connection.getResponseCode()。

也，溝DataOutputStream類，只需使用：

   OutputStream out = connection.getOutputStream(); 
       out.write(param.getBytes("UTF-8")); 
       out.flush(); 
       out.close(); 

Answer 2

您是在響應代碼做任何驗證之前disconencting的connection。嘗試做這樣的事情之前disconnect()

int rc = connection.getResponseCode(); 
if(rc==200){ 
    //Success 
} else if(rc==401) { 
    System.out.println("http response code error: "+rc); 
} else if(rc==404){ 
    //Not Found 
} 

這應該完成您的測試。