search
HomeWeb Front-endJS TutorialThe answer to error returning error and always returning error in JQuery ajax

This article is shared by the editor of Script House to share with you a summary of the answers to the error return error and error return in ajax in JQuery. Friends in need can refer to the following

Enter BaiduSearchThis question, I found someone said this

 The async of Ajax in Jquery defaults to true (asynchronous request). If you want to execute another Ajax after it is executed, For an Ajax, you need to set async=false

I then processed it in ajax

async: false, and found that submitting normal data returned normal without errors.

The code is as follows


##

$.ajax({
type: "POST",
async: false,
url:urllink, 
data:data,
dataType:"html",
success:function(msg){
alert(data)
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert(XMLHttpRequest.status);
alert(XMLHttpRequest.readyState);
alert(textStatus);
},
});

One last thing to add:

Sending errors may be caused by the following two, or other programs The problem requires us to take it seriously.

1. data: "{}", if the data is empty, you must pass "{}"; otherwise, the returned data will be in xml format. And prompts parsererror.

The answer to jQuery ajax always returning error is as follows:

Today I used ajax to do asynchronous deletion and encountered a problem. ajax can request

action and execute the method successfully. But the error method keeps returning. I struggled for a long time. I also checked a lot of information. Basically it’s all kinds of attempts. I just want to switch to Ext. .

I found that some methods in action start with get. If you carefully print the return of ajax, you will definitely find that when ajax returns, it will obtain all methods starting with get in the action, including of course the methods in the action. After getting it, it is different from other get methods. you know! At this time, ajax will report a 500 error. Ajax will enter the error method when the status reaches 300.

The modification method is: very simple, modify the method starting with get in the action to something else, for example;


public String getNetBut(){ 
    bdiList=googleFlexDAO.getBuildingIpsById(araid.trim()); 
    return SUCCESS; 
  }

Change it to:


public String findNetBut(){ 
    bdiList=googleFlexDAO.getBuildingIpsById(araid.trim()); 
    return SUCCESS; 
  }

This is OK! This error is generally difficult to find, but you can still spot it if you are careful!

Okay, the answers to the error return error and error always returned in JQuery ajax are all described. I hope you all like it.

The above is the detailed content of The answer to error returning error and always returning error in JQuery ajax. For more information, please follow other related articles on the PHP Chinese website!

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
jquery实现多少秒后隐藏图片jquery实现多少秒后隐藏图片Apr 20, 2022 pm 05:33 PM

实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

jquery怎么修改min-height样式jquery怎么修改min-height样式Apr 20, 2022 pm 12:19 PM

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

axios与jquery的区别是什么axios与jquery的区别是什么Apr 20, 2022 pm 06:18 PM

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

jquery怎么在body中增加元素jquery怎么在body中增加元素Apr 22, 2022 am 11:13 AM

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

jquery怎么删除div内所有子元素jquery怎么删除div内所有子元素Apr 21, 2022 pm 07:08 PM

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

jquery中apply()方法怎么用jquery中apply()方法怎么用Apr 24, 2022 pm 05:35 PM

在jquery中,apply()方法用于改变this指向,使用另一个对象替换当前对象,是应用某一对象的一个方法,语法为“apply(thisobj,[argarray])”;参数argarray表示的是以数组的形式进行传递。

jquery怎么去掉只读属性jquery怎么去掉只读属性Apr 20, 2022 pm 07:55 PM

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。

jquery on()有几个参数jquery on()有几个参数Apr 21, 2022 am 11:29 AM

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool