小编KaM*_*MaL的帖子

我正在尝试将 angualar js 应用程序与后端 spring boot 集成，其中我面临着预检请求不允许重定向

这是部署在 openshift 上，我通过在控制器方法中添加一些注释来配置启用 cors，这帮助我解决了：请求在传入请求中没有“Access-Control-Allow-Origin”标头：CORS 策略问题。

    @CrossOrigin(allowedHeaders = "*", origins = "*", exposedHeaders = 
        "Access-Control-Allow-Origin", methods = {
          RequestMethod.POST, RequestMethod.GET, RequestMethod.PUT, 
    RequestMethod.DELETE, RequestMethod.HEAD,
          RequestMethod.OPTIONS, RequestMethod.PATCH, RequestMethod.TRACE })
    @RestController
    public class Controller {

   @Autowired
   Service botService;

   @Autowired
   Environment env;

   @CrossOrigin()
   @RequestMapping(value = "/jwtToken", method = {
                 RequestMethod.POST }, produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.APPLICATION_JSON_VALUE)
   @ResponseStatus(HttpStatus.OK)
   public ResponseEntity<UnifiedService> botConntor(                     
                 @RequestBody UnifiedInput input, HttpServletRequest request) {
          UnifiedBPMService output = botService.processBotRequest(input, request);
          return new ResponseEntity<UnifiedService>(output, HttpStatus.OK);
   }

我在实际的角度应用程序中得到的错误是： …