htmlunit使用小例子：模拟新浪邮箱登录、修改密码、更改帐号昵称

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.gargoylesoftware.htmlunit.BrowserVersion;
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.HttpMethod;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.WebRequest;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlInput;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.util.NameValuePair;

public class MySina {

private WebClient client;
private WebRequest request;

private String sinaLoginUrl = "http://mail.sina.com.cn/cgi-bin/login.php";
private String hostSinaUrl = "";

public static void main(String[] args)
throws FailingHttpStatusCodeException, MalformedURLException,
IOException {

String username = "***";
String password = "***";
String newpassword = "***";
String nickname = "***";
MySina mySina = new MySina();

if(mySina.mailLoginBySina(username, password)){		//登录
mySina.updatePwdBySina(password,newpassword);	//修改密码
mySina.updateNickName(nickname);				//修改帐户昵称
}else{
System.out.println("登录失败！请检查用户名和密码是否正确！");
}
}

public MySina() {
client = new WebClient(BrowserVersion.INTERNET_EXPLORER_8);
client.setJavaScriptEnabled(false);
}

/**
*
* 更改帐户昵称
*
* @param nickname
*            昵称
* @return boolean
* @throws FailingHttpStatusCodeException
* @throws IOException
*/
public boolean updateNickName(String nickname)
throws FailingHttpStatusCodeException, IOException {

String sinaSetUrl = hostSinaUrl + "basic/setting_account";
request = new WebRequest(new URL(sinaSetUrl),HttpMethod.POST);

request.setCharset("utf-8");
request.setRequestParameters(Arrays.asList(
new NameValuePair("nickname", nickname),
new NameValuePair("pop3", "on"),
new NameValuePair("imap", "on")));

client.getPage(request);
HtmlPage p = client.getPage(hostSinaUrl + "classic/index.php");

if (p.getBody().getTextContent()
.indexOf("\"NickName\":\"" + nickname + "\"") > 0) {
return true;
} else {
return false;
}
}

/**
*
* 修改密码
*
* @param oldpassword
*            旧密码
* @param newpassword
*            新密码
* @return boolean
* @throws FailingHttpStatusCodeException
* @throws IOException
*/
public boolean updatePwdBySina(String oldpassword, String newpassword)
throws FailingHttpStatusCodeException, IOException {

String sinaSetUrl = "http://login.sina.com.cn/member/security/password.php";

request = new WebRequest(new URL(sinaSetUrl),HttpMethod.POST);

request.setCharset("gbk");
request.setRequestParameters(Arrays.asList(
new NameValuePair("pass",oldpassword),
new NameValuePair("pass1", newpassword),
new NameValuePair("pass2", newpassword)));

HtmlPage p = client.getPage(request);

if (p.getBody().getTextContent().indexOf("您的密码修改成功") > 0) {
return true;
} else {
return false;
}
}

/**
* 登录
*
* @param username
*            用户名
* @param password
*            密码
* @return boolean
* @throws FailingHttpStatusCodeException
* @throws MalformedURLException
* @throws IOException
*/
public boolean mailLoginBySina(String username, String password)
throws FailingHttpStatusCodeException, MalformedURLException,
IOException {

HtmlPage loginPage = client.getPage(sinaLoginUrl);
HtmlForm loginForm = loginPage.getFormByName("free");

HtmlInput u = loginForm.getInputByName("u");
HtmlInput psw = loginForm.getInputByName("psw");
HtmlSubmitInput loginButton = loginForm.getInputByName("登录");

u.setValueAttribute(username);
psw.setValueAttribute(password);

HtmlPage result = loginButton.click();
String resultUrl = result.getUrl().toString();

if (resultUrl.indexOf("classic/index.php") > 0) {

String regex = "http://(.*?)/";
hostSinaUrl = myRegex(resultUrl, regex, null);

if (hostSinaUrl.length() > 0) {
return true;
} else {
return false;
}
} else {
return false;
}
}

/**
*
* 正则匹配替换
*
* @param str
* @param reg
* @param replace
* @return
*/
public String myRegex(String str, String reg, String[] replace) {

String result = null;

Matcher m = Pattern.compile(reg).matcher(str);

while (m.find()) {

result = m.group();

if (replace != null && replace.length > 0) {

for (String s : replace) {
result = result.replace(s, "");
}
}
}
return result;
}
}