SpringBoot覆盖默认异常处理

最新推荐文章于 2025-04-22 01:00:00 发布

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本文介绍如何通过继承BasicErrorController来自定义Spring Boot应用程序中的错误控制器。覆盖默认的JSON和HTML响应，实现对错误页面的定制化处理。

自定义MyErrorController继承BasicErrorController

import org.springframework.boot.autoconfigure.web.BasicErrorController;
import org.springframework.boot.autoconfigure.web.DefaultErrorAttributes;
import org.springframework.boot.autoconfigure.web.ServerProperties;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Map;

@Controller
public class MyErrorController extends BasicErrorController {

    public MyErrorController(ServerProperties serverProperties) {
        super(new DefaultErrorAttributes(), serverProperties.getError());
    }

    /**
     * 覆盖默认的Json响应
     */
    @Override
    public ResponseEntity<Map<String, Object>> error(HttpServletRequest request) {
        Map<String, Object> body = getErrorAttributes(request, isIncludeStackTrace(request, MediaType.ALL));
        HttpStatus status = getStatus(request);
        return new ResponseEntity<Map<String, Object>>(body, status);
    }

    /**
     * 覆盖默认的HTML响应
     */
    @Override
    public ModelAndView errorHtml(HttpServletRequest request, HttpServletResponse response) {
        //请求的状态
        HttpStatus status = getStatus(request);
        response.setStatus(getStatus(request).value());

        Map<String, Object> model = getErrorAttributes(request,
                isIncludeStackTrace(request, MediaType.TEXT_HTML));
        ModelAndView modelAndView = resolveErrorView(request, response, status, model);
        //指定自定义的视图
        return(modelAndView == null ? new ModelAndView("error", model) : modelAndView);
    }

}