jfinal与bootstrap的登出实战详解

function initUI(_box) {
 var $p = $(_box || document);

 // dwz.ajax.js
 if ($.fn.ajaxTodo) {
  $("a[target=ajaxTodo]", $p).ajaxTodo();
 }
}

function ajaxTodo(url, callback) {
 var $callback = callback;
 if (!$.isFunction($callback)) {
  $callback = eval('(' + callback + ')');
 }

 var forwardUrl = window.location.href;
 if (url.indexOf("?") != -1) {
  url += "&forwardUrl=" + forwardUrl;
 } else {
  url += "?forwardUrl=" + forwardUrl;
 }
 $.ajax({
  type : 'POST',
  url : url,
  dataType : "json",
  cache : false,
  success : $callback,
  error : YUNM.ajaxError
 });
}

$.fn.extend({
 ajaxTodo : function() {
 return this.each(function() {
  var $this = $(this);
  $this.click(function(event) {
  var url = unescape($this.attr("href")).replaceTmById($(event.target).parents(".unitBox:first"));
  YUNM.debug(url);
  if (!url.isFinishedTm()) {
   $.showErr($this.attr("warn"));
   return false;
  }
  var title = $this.attr("atitle");
  if (title) {
   $.showConfirm(title, function() {
   ajaxTodo(url, $this.attr("callback"));
   });
  } else {
   ajaxTodo(url, $this.attr("callback"));
  }
  event.preventDefault();
  });
 });
 },
});

function ajaxDone(json) {
 YUNM.ajaxDone(json);
 if (json[YUNM.keys.statusCode] == YUNM.statusCode.ok || json[YUNM.keys.statusCode] == YUNM.statusCode.info) {
 // 如果指定了后调转页面，进行调转
 if (json.forwardUrl) {
  location.href = json.forwardUrl;
 }
 }
}

$.showConfirm = function(str, funcok, funcclose) {
 var okfunc = function() {
 $.weeboxs.close("yunm_confirm_box");
 funcok.call();
 };
 $.weeboxs.open(str, {
 boxid : 'yunm_confirm_box',
 contentType : 'text',
 showButton : true,
 showCancel : true,
 showOk : true,
 title : '确认',
 width : 280,
 type : 'wee',
 onopen : function() {
  init_ui_button();
 },
 onclose : funcclose,
 onok : okfunc
 });
};

function init_ui_button() {
 $("button.ui-button[init!='init']").each(function(i, o) {
 $(o).attr("init", "init"); // 为了防止重复初始化
 $(o).ui_button();
 });

}

public void logout() {

 if (getSession().getAttribute("username") != null) {
  // 清除session
  getSession().removeAttribute("username");
 }

 ajaxDoneSuccess("登出成功！");

 renderJson();
 }