前端vue报net::ERR_FAILED 500 (Internal Server Error)

Java小弟xu2024-08-26 12:37

spring boot的filter抛出的自定义异常，使用自定义controller来捕获。

import org.springframework.boot.web.servlet.error.ErrorController;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;

/**
 * 捕获filter抛出的异常交由BusinessExceptionAdvice处理
 * 请求进来 会按照 filter -> interceptor -> controllerAdvice -> aspect -> controller的顺序调用
 * 当controller返回异常 也会按照controller -> aspect -> controllerAdvice -> interceptor -> filter来依次抛出
 *
 * @author dengdxu
 * @Datetime 2024/8/24
 **/
@Controller
public class ErrorControllerImpl implements ErrorController {

    public String getErrorPath() {
        return "/error";
    }

    @RequestMapping("/error")
    public void handleError(HttpServletRequest request) throws Throwable {
        if (request.getAttribute("javax.servlet.error.exception") != null) {
            throw (Throwable) request.getAttribute("javax.servlet.error.exception");
        }
    }
}

其他业务异常正常返回，但是filter异常在前端报跨域异常：No 'Access-Control-Allow-Origin' header is present, net::ERR_FAILED 500 (Internal Server Error)

这是由于自定义的controller没有配置跨域，给ErrorControllerImpl 加上@CrossOrigin注解就可以了