js中调用方式：

varparams={};params["aakey"]="aavalue";params["bbkey"]="bbvalue";$.cosajax({url:path+"**.action",data:params,//一个对象，包含很多键值对，jquery自动转化为aakey=aavalue&bbkey=bbvalue的形式callback:function(result){}});


functioncheckSessionTimeOut(result){//增加session超时判断if(result&&!(result.success)&&result.message=='timeout'){top.document.location=path+'/frame.action';returntrue;}returnfalse;}functionshowTip(msg,callback){$("#mask_bg").css("z-index","9999");//窗口置于最上面$("#okbtn").unbind();//删除okbtn的其他事件$("#mask_new").show();$("#okbtn").one('click',callback);//增加点击事件，隐藏tip}functionhideTip(){$("#mask_new").hide();$("#mask_bg").hide();}jQuery.extend({cosajax:function(opts){opts=jQuery.extend({url:"",data:"",isWait:false,isClose:true,callback:function(){returnfalse;},fail:function(){returnfalse;}},opts||{});//逗号后面opts||{}是对前面的扩展$.ajax({type:"POST",dataType:"json",url:opts.url,async:false,data:opts.data,//多个参数用&连接timeout:180000,beforeSend:function(){},complete:function(result){if(!opts.isWait){//成功失败都会调用complete方法hiddenWait();}},success:function(result){//增加session超时判断if(checkSessionTimeOut(result)){return;}if(result.success){opts.callback(result);//调用opts中callback方法}else{if(opts.isClose){//关闭窗口closeWindows();varerrTipMessage=result.message;switch(result.message){case'500':errTipMessage=”操作失败”;break;default:errTipMessage=result.message;break;}showTip(errTipMessage,hideTip);//hiteTip是点击事件的回调函数}else{hiddenWait();opts.fail(result);}}},error:function(){if(opts.isClose){closeWindows();showTip(“操作失败”,hideTip);}else{hiddenWait();opts.fail();}}});}});