old_contents: /**
   * Created by 国正 on 2014/6/24 0024.
   */
  var request = require('request');
  
  var iconv = require('iconv-lite');
  
  var session;
  
  function userLogin(username, password, callback) {
      if (username == '' || password == '') {
          callback(false);
      }
      request(
          {
              url: 'http://222.24.3.7:8080/opac_two/include/login_app.jsp',
              method: 'POST',
              encoding: null,
              headers: {
                  ContentType: 'application/x-www-form-urlencoded'
              },
              form: {
                  login_type: 'barcode',
                  barcode: username,
                  password: password,
                  _: ''
              }
          },
          function (err, res, body) {
              if (err) {
                  callback(err);
              }
              body = iconv.decode(body, "GB2312");
              //console.log(body);
              session = res.headers['set-cookie'];
              //console.log(session);
              if (body == 'ok') {
                  callback({Result: true, Session: session});
              }
              else {
                  callback('Account Error');
              }
          });
  }
  
  module.exports = userLogin;
  
new_contents: /**
   * Created by 国正 on 2014/6/24 0024.
   */
  var request = require('request');
  
  var iconv = require('iconv-lite');
  
  var session;
  
  function userLogin(username, password, callback) {
      if (username == '' || password == '') {
          callback(false);
      }
      request(
          {
              url: 'http://222.24.3.7:8080/opac_two/include/login_app.jsp',
              method: 'POST',
              encoding: null,
              headers: {
                  ContentType: 'application/x-www-form-urlencoded'
              },
              form: {
                  login_type: 'barcode',
                  barcode: username,
                  password: password,
                  _: ''
              }
          },
          function (err, res, body) {
              if (err) {
                  callback(err);
              }
              body = iconv.decode(body, "GB2312");
              //console.log(body);
              session = res.headers['set-cookie'];
              //console.log(session);
              if (body == 'ok') {
                  callback(session);
              }
              else {
                  callback('Account Error');
              }
          });
  }
  
  module.exports = userLogin;
  
subject: Fix some problems