在springboot邮件API中启用CORS

本文介绍了在springboot邮件API中启用CORS的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我可以轻松地发送springboot API和reactjs应用进行邮件提取. 托管在nginx服务器中. React应用程序在本地主机上运行良好，通过电子邮件发送所有okei信息，但是如果我在服务器上运行，则会出现错误.

I have easy mail sending springboot API and reactjs app for fetch. Hosted in nginx server. React app running well localhost, email working everything okei but if I run on a server it gives an error.

我尝试添加其他Nginx服务器设置并添加Springboot @CrossOrigin(origins = "xx.xxx.xxx.xxx/")，但到目前为止没有找到任何帮助. 如果我部署到服务器，必须在哪里允许CORS?

I have tried to add different Nginx server settings and add Springboot @CrossOrigin(origins = "xx.xxx.xxx.xxx/") but have not found any help so far. Where do I have to allow CORS if I deploy to server?

Nginx服务器默认值:

server { listen 80 default_server; root /var/www/name/build; server_name xx.xxx.xxx.xxx; index index.html index.htm; location / { } }

Springboot:

@PostMapping public void sendFeedback(@RequestBody Feedback feedback, BindingResult bindingResult){ if(bindingResult.hasErrors()){ throw new ValidationException("Feedback is not valid"); } // Create a mail sender JavaMailSenderImpl mailSender = new JavaMailSenderImpl(); Properties props = mailSender.getJavaMailProperties(); mailSender.setHost(this.emailCfg.getHost()); mailSender.setPort(this.emailCfg.getPort()); mailSender.setUsername(this.emailCfg.getUsername()); mailSender.setPassword(this.emailCfg.getPassword()); // Create an email instance SimpleMailMessage mailMessage = new SimpleMailMessage(); mailMessage.setFrom(feedback.getEmail()); mailMessage.setTo("test@gmail"); mailMessage.setSubject("Testing mail"); mailMessage.setText(feedback.getFeedback()); mailSender.send(mailMessage); }

我拥有的Reactjs代码:

fetch(url,{ method: 'POST', headers:{ 'Content-Type': 'application/json' }, body: JSON.stringify(state) }).then(response =>{ console.log(data) }).catch(error =>{ console.log(error) })

输出:

Access to fetch at 'xx.xxx.xxx.xxx:8080/feedback-0.0.1-SNAPSHOT' from origin 'xx.xxx.xxx.xxx' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request.

推荐答案

添加CORS配置，如下所示:

Add a CORS config as below :

@Configuration public class CORSConfig implements WebMvcConfigurer { @Override public void addCorsMappings(CorsRegistry registry) { registry.addMapping("/**") .allowedOrigins("*") .allowedMethods("GET", "POST", "PUT", "DELETE", "HEAD"); } }

或 取消您的控制器

@CrossOrigin @PostMapping public void sendFeedback(@RequestBody Feedback feedback, BindingResult bindingResult){ if(bindingResult.hasErrors()){ throw new ValidationException("Feedback is not valid"); } // Create a mail sender JavaMailSenderImpl mailSender = new JavaMailSenderImpl(); Properties props = mailSender.getJavaMailProperties(); mailSender.setHost(this.emailCfg.getHost()); mailSender.setPort(this.emailCfg.getPort()); mailSender.setUsername(this.emailCfg.getUsername()); mailSender.setPassword(this.emailCfg.getPassword()); // Create an email instance SimpleMailMessage mailMessage = new SimpleMailMessage(); mailMessage.setFrom(feedback.getEmail()); mailMessage.setTo("test@gmail"); mailMessage.setSubject("Testing mail"); mailMessage.setText(feedback.getFeedback()); mailSender.send(mailMessage); }