该楼层疑似违规已被系统折叠 隐藏此楼查看此楼

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.net.HttpURLConnection;

import java.net.URL;

import javax.swing.JOptionPane;

/*

* 模拟登录系统的简单示例

* */

public class Login {

static String sURL = "http://hwid1.vmall.com/oauth2/portal/login.jsp";

static String responseCookie;// 标示Session必须

static String string = "http://hwid1.vmall.com";

// 测试登录功能，返回“自动”登录后的页面

public static String login(String usr, String pwd) throws IOException {

String authcode;

String sTotalString = null;

// 创建URL，

URL url = new URL(sURL);

// 创建URL的URLURLConnection

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

// 配置URLConnection

connection.setDoInput(true);

connection.setDoOutput(true);// 允许连接提交信息

connection.setRequestMethod("POST");// 网页默认“GET”提交方式

// 设置登陆的字符串的可变字符序列

StringBuffer sb = new StringBuffer();

sb.append("userAccount=" + usr);

sb.append("&password=" + pwd);

authcode = JOptionPane.showInputDialog("请输入验证码：");

sb.append("&authcode=" + authcode);

connection.setRequestProperty("Content-Length",

String.valueOf(sb.toString().length()));

connection.connect();

// 获取URL的输出流

OutputStreamWriter os = new OutputStreamWriter(connection.getOutputStream(),"utf-8");

// 带参数(账号密码验证码)请求网页

os.write(sb.toString());

os.close();

// 取到所用的Cookie

responseCookie = connection.getHeaderField("Set-Cookie");

// 重新请求一个页面

url = new URL(string);

// 调用此 URL 的协议处理程序的 openConnection 方法都打开一个新的连接。

connection = (HttpURLConnection) url.openConnection();

connection.setDoOutput(true);// 允许连接提交信息

// 给服务器送登录后的cookie

connection.setRequestProperty("Cookie", responseCookie);

connection.connect();

// 读取返回的页面信息到br1

BufferedReader br1 = new BufferedReader(new InputStreamReader(

connection.getInputStream(),"utf-8"));

// 输出一个字符

String sTotalStrings = null;

while ((sTotalString = br1.readLine()) != null) {

sTotalStrings = sTotalStrings + sTotalString;

}

br1.close();

return sTotalStrings;

}

}