ajax跨域请求错误

解决：
　　springboot中：
　　　　加注解 @CrossOrigin

Access to XMLHttpRequest at 'http://localhost:8090/user/getotp' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.的更多相关文章

  1. Access to XMLHttpRequest at xxxx from origin ‘null‘ has been blocked by CORS policy:

    使用前后端分离的方式创建web项目的时候出现问题: 这是因为 ajax 请求的对应的域在本地的一个文件路径,比如在D盘的某个文件夹,这里存放的都是前端文件: 但是对应的服务器是 localhost 的 ...

  2. ajax post上传数据时，前端出现的跨域权限问题：ccess to XMLHttpRequest at ‘’rom origin 'null' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok st

    本人前端使用多个框架时,jq  ajax传参出现如下报错: 最后发现,可能是xhr的相关默认参数被修改了.顾使用jq 传参时,一直报错,jq  ajax额外添加的关键参数: crossDomain: ...

  3. WCF REST开启Cors 解决 No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access. The response had HTTP status code 405.

    现象: 编写了REST接口: [ServiceContract] public interface IService1 { [OperationContract] [WebInvoke(UriTemp ...

  4. 跨域问题解决----NO 'Access-Control-Allow-Origin' header is present on the requested resource.Origin'http://localhost:11000' is therfore not allowed access'

    NO 'Access-Control-Allow-Origin' header is present on the requested resource.Origin'http://localhost ...

  5. java、ajax 跨域请求解决方案（'Access-Control-Allow-Origin' header is present on the requested resource. Origin '请求源' is therefore not allowed access.）

      1.情景展示 ajax调取java服务器请求报错 报错信息如下: 'Access-Control-Allow-Origin' header is present on the requested ...

  6. Failed to load http://wantTOgo.com/get_sts_token/: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://fromHere.com' is therefore not allowed access.

    Failed to load http://wantTOgo.com/get_sts_token/: No 'Access-Control-Allow-Origin' header is presen ...

  7. has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

    前端显示: has been blocked by CORS policy: Response to preflight request doesn't pass access control che ...

  8. .Net Core 处理跨域问题Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource

    网页请求报错: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Or ...

  9. Access to XMLHttpRequest at 'XXX' from origin 'XX' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present o AJAX跨域请求解决方法

    今天出现了一个问题找了好久先看代码: 这可能是个BUG吧插入代码: dataType: 'jsonp', crossDomain: true, 最终:

随机推荐

  1. linux安装jdk1.8之后报错Error: dl failure on line 893的解决办法

    问题描述:安装jdk1.8之后,输入java -version查看安装是否成功之后,报错:   报错如下: Error: dl failure on line 893 Error: failed /u ...

  2. 发布机制-灰度发布-例子：QZone

    ylbtech-发布机制-灰度发布-例子:QZone QZone是另外一个采用灰度发布的例子.大家都知道,QZone在过去的一年中改进是巨大的,从以前慢悠悠的老爷爷变成了一个充满青春活力的小伙子.其中 ...

  3. React Native 常用第三方组件

    React-Native-Elements 一组开发RN的UI工具包(强烈推荐)

  4. Kafka offset机制

  5. Linux新增开放端口

    CentOS系统 开放端口的方法: 方法一:命令行方式               1. 开放端口命令: /sbin/iptables -I INPUT -p tcp --dport 8080 -j ...

  6. laravel redis存数组并设置过期时间

    $data = [ 'zoneList'=>$zoneList, 'eqList' => $eqList, 'mdateList' => $mdateList ]; Redis::s ...

  7. Centos7 FastDFS 搭建

    安装libfastcommon 首先第一步是安装libfastcommon,我这里将libfastcommon上传到的/opt目录下,直接解压: yum -y install gcc-c++ yum ...

  8. linux 网络相关

    1. 配bond 模式 将eth0 和 eth1 绑定 ,master 为bond2 ,直接上文件 eth0   和 eth1 , 类似,如下 ,关键点  MASTER and  SLAVE TYPE ...

  9. 分类并查集[noi2001 食物链]

    题目链接:http://cogs.pro:8081/cogs/problem/problem.php?pid=pxNJzxVPU 题目有三种动物,A吃B,B吃C,C吃A 即B是A的食物,A是B的天敌, ...

  10. python之理解装饰器

    装饰器是修改其他函数的函数.好处是可以让你的函数更简洁. 一步步理解这个概念: 一.一切皆对象. def hi(name="yasoob"): return "hi &q ...