[网络协议]spring 自定义全局http错误信息处理

业务安全性检查要求隐藏500的敏感信息，并将错误变为400

import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.boot.autoconfigure.web.ErrorProperties;
import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;
import org.springframework.boot.autoconfigure.web.servlet.error.ErrorViewResolver;
import org.springframework.boot.web.servlet.error.ErrorAttributes;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;

public class ErrorPageController extends BasicErrorController {

?? ?public ErrorPageController(ErrorAttributes errorAttributes, ErrorProperties errorProperties,
?? ??? ??? ?List<ErrorViewResolver> errorViewResolvers) {
?? ??? ??? ?
?? ??? ?super(errorAttributes, errorProperties, errorViewResolvers);

?? ?}

?? ?@Override
?? ?protected Map<String, Object> getErrorAttributes(HttpServletRequest request, boolean includeStackTrace) {
?? ??? ?
?? ??? ?Map<String, Object> errorMap = super.getErrorAttributes(request, includeStackTrace);
?? ??? ?if(500==(int)errorMap.get("status")) {
?? ??? ??? ?errorMap.put("status", 400);
?? ??? ??? ?errorMap.remove("error");
?? ??? ??? ?errorMap.remove("message");
?? ??? ?}
?? ??? ?return errorMap;
?? ?}
?? ?@Override
?? ?@RequestMapping
?? ?public ResponseEntity<Map<String, Object>> error(HttpServletRequest request) {
?? ??? ?Map<String, Object> body = getErrorAttributes(request,
?? ??? ??? ??? ?isIncludeStackTrace(request, MediaType.ALL));
?? ??? ?HttpStatus status = getStatus(request);
?? ??? ?if(HttpStatus.INTERNAL_SERVER_ERROR.equals(status)) {
?? ??? ??? ?status=HttpStatus.BAD_REQUEST;
?? ??? ?}
?? ??? ?return new ResponseEntity<>(body, status);
?? ?}

?? ?
?? ?

}

文件二

?? ?@Bean
?? ?public ErrorPageController basicErrorController(ErrorAttributes errorAttributes,?
?? ??? ??? ?ServerProperties serverProperties,?
?? ??? ??? ?ObjectProvider<List<ErrorViewResolver>> errorViewResolversProvider) {
?? ??? ??? ?
?? ??? ?return new ErrorPageController(errorAttributes, serverProperties.getError(),?
?? ??? ??? ??? ?errorViewResolversProvider.getIfAvailable());
?? ?}