当我尝试将用户名和密码参数发布到登录页面时，我得到相同的响应HTML。我已按照此处提供的教程进行操作。
http://www.mkyong.com/java/apache-httpclient-examples/
我能够成功地为gmail页面执行此操作，但我无法为IBM Partner World Page执行此操作。这是我用于页面登录的java程序
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.CookieHandler;
import java.net.CookieManager;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
public class tt {
private String cookies;
private HttpClient client = HttpClientBuilder.create().build();
private final String USER_AGENT = "Mozilla/5.0";
public static void main(String[] args) throws Exception {
String url = "https://www-304.ibm.com/usrsrvc/account/userservices/jsp/login.jsp?persistPage=true&page=/partnerworld/wps/servlet/mem/ContentHandler/partnerworld-public%3Flnk%3Dleft-nav&PD-REFERER=https://www-304.ibm.com/partnerworld/wps/servlet/ContentHandler/partnerworld-public&error=";
String gmail = "https://www.ibm.com/partnerworld/page/X082763O18037G72";
// make sure cookies is turn on
CookieHandler.setDefault(new CookieManager());
tt http = new tt();
String page = http.GetPageContent(url);
List<NameValuePair> postParams =
http.getFormParams(page, "username","password");
http.sendPost(url, postParams);
String result = http.GetPageContent(gmail);
System.out.println(result);
System.out.println("Done");
}
private void sendPost(String url, List<NameValuePair> postParams)
throws Exception {
HttpPost post = new HttpPost(url);
// add header
post.setHeader("Host", "www-304.ibm.com:443");
post.setHeader("User-Agent", USER_AGENT);
post.setHeader("Accept",
"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
post.setHeader("Accept-Language", "en-US,en;q=0.5");
post.setHeader("Cookie", getCookies());
post.setHeader("Accept-Encoding" ,"gzip,deflate,sdch");
//post.setHeader("Connection", "keep-alive");
post.setHeader("Referer", "https://www-304.ibm.com/partnerworld/wps/servlet/ContentHandler/pw_com_jnw_index");
//post.setHeader("Content-Type", "application/x-www-form-urlencoded");
post.setEntity(new UrlEncodedFormEntity(postParams));
HttpResponse response = client.execute(post);
int responseCode = response.getStatusLine().getStatusCode();
System.out.println("\nSending 'POST' request to URL : " + url);
System.out.println("Post parameters : " + postParams);
System.out.println("Response Code : " + responseCode);
BufferedReader rd = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
StringBuffer result = new StringBuffer();
String line = "";
while ((line = rd.readLine()) != null) {
result.append(line);
}
System.out.println(result.toString());
}
private String GetPageContent(String url) throws Exception {
HttpGet request = new HttpGet(url);
request.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36");
request.setHeader("Accept",
"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
request.setHeader("Accept-Language", "en-US,en;q=0.5");
HttpResponse response = client.execute(request);
int responseCode = response.getStatusLine().getStatusCode();
System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response Code : " + responseCode);
BufferedReader rd = new BufferedReader(
new InputStreamReader(response.getEntity().getContent()));
StringBuffer result = new StringBuffer();
String line = "";
while ((line = rd.readLine()) != null) {
result.append(line);
}
// set cookies
setCookies(response.getFirstHeader("Set-Cookie") == null ? "" :
response.getFirstHeader("Set-Cookie").toString());
return result.toString();
}
public List<NameValuePair> getFormParams(
String html, String username, String password)
throws UnsupportedEncodingException {
System.out.println("Extracting form's data...");
Document doc = Jsoup.parse(html);
// Google form id
Element loginform = doc.getElementById("login");
Elements inputElements = loginform.getElementsByTag("input");
List<NameValuePair> paramList = new ArrayList<NameValuePair>();
for (Element inputElement : inputElements) {
String key = inputElement.attr("name");
String value = inputElement.attr("value");
if (key.equals("username"))
value = username;
else if (key.equals("password"))
value = password;
System.out.println(username+password);
paramList.add(new BasicNameValuePair(key, value));
}
return paramList;
}
public String getCookies() {
return cookies;
}
public void setCookies(String cookies) {
this.cookies = cookies;
}
}
我得到与用于发布参数的响应相同的HTML。请帮我解决一下这个。 我想知道如何登录这个网站并维持我的会话。
答案 0 :(得分：1)
我明白了。我使用了Chrome浏览器的开发人员工具，并检查了浏览器试图通过GET和POST请求获取的不同网址。
转到开发工具＆gt;网络＆gt;并尝试正常访问网页＆gt;您将看到所有信息，甚至是从网站返回的cookie和内容。
表单因您想要模仿的页面而异。您应该检查要模仿的登录页面的源（以及其中的不同表单）。使用正确发送用户名和密码的表格。
此外，当您使用开发工具监视网页请求时。检查所有实体。我解决了我的问题
1.检查密码的编码形式。 UrlEncodedFormEntity与我的浏览器使用的不同。
return "login-form-type=pwd&username="+username+"&password="+password;
2。确切的表单url实际上负责发送参数。还有登录参数发送后的下一页。
String url = "https://www-304.ibm.com/pkmslogin.form";
String gmail = "https://www.ibm.com/partnerworld/page/X082763O18037G72";
另外，请确保存储Cookie并将其发回以备下次请求。因为这是你维持会话的方式。