网页指定打印机打印解决方案——网页端注意问题

解决ajax 跨域+跨域统一session 处理+请求超时报错

$.ajax({
url: \'http://127.0.0.1:8080/\',
dataType: \'jsonp\',
xhrFields: {
withCredentials: true
},
crossDomain: true,
data: { requestName: "GoodEntranc", param: item.id },
timeout: 5000,
traditional: true,
success: function (data) {

},
complete: function (XMLHttpRequest, status) { //请求完成后最终执行参数
if (status == \'timeout\') {//超时,status还有success,error等值的情况
BUI.Message.Alert(\'本地打印服务未启动！\');
}
else {
BUI.Message.Alert(\'打印数据发送成功！\');
}
}
});