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Access to XMLHttpRequest at 'http://localhost:8080/user/getotp' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

试了大家提的方法了，前端浏览器发起请求还是报跨域的错。后端接口用postman测试是🆗的。呜呜呜~

慕虎0442353

2021-09-09

源自：SpringBoot构建电商基础秒杀项目 3-11

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慕虎0442353 提问者
2021-09-09

对不起，是我大意了。我发现我后端写成了getopt，前端请求的却是getotp~~我现在可以正确发送验证码了。然后我做的唯一修改就是：

@CrossOrigin(allowCredentials = "true",allowedHeaders = "*", originPatterns ="*")

1 回复有任何疑惑可以回复我~

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SpringBoot构建电商基础秒杀项目

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应用SpringBoot快速搭建拥有用户、商品、交易及秒杀活动的电商秒杀应用。

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Access to XMLHttpRequest at 'http://localhost:8080/user/getotp' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

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Access to XMLHttpRequest at 'http://localhost:8080/user/getotp' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

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Access to XMLHttpRequest at 'http://localhost:8080/user/getotp' from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.