基于springboot的动漫弹幕网站+源代码+文档说明

package com.example.forum.exception; import com.example.forum.dto.JsonResult; import lombok.extern.slf4j.Slf4j; import org.apache.shiro.authz.UnauthorizedException; import org.springframework.http.HttpStatus; import org.springframework.http.converter.HttpMessageNotReadableException; import org.springframework.ui.Model; import org.springframework.validation.BindException; import org.springframework.validation.BindingResult; import org.springframework.validation.FieldError; import org.springframework.web.HttpMediaTypeNotSupportedException; import org.springframework.web.HttpRequestMethodNotSupportedException; import org.springframework.web.bind.MethodArgumentNotValidException; import org.springframework.web.bind.MissingServletRequestParameterException; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.ResponseStatus; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.NoHandlerFoundException; import org.springframework.web.servlet.view.json.MappingJackson2JsonView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.validation.ConstraintViolation; import javax.validation.ConstraintViolationException; import javax.validation.ValidationException; import java.io.IOException; import java.util.HashMap; import java.util.Map; import java.util.Set; /** * 全局异常捕获 */ @ControllerAdvice @Slf4j public class GlobalExceptionHandler { //错误显示页面 public static final String viewName = "common/error/error"; /** * 是否是ajax请求 */ public static boolean isAjax(HttpServletRequest httpRequest) { return (httpRequest.getHeader("X-Requested-With") != null && "XMLHttpRequest" .equals(httpRequest.getHeader("X-Requested-With").toString())); } /** * 400 - Bad Request */ @ResponseStatus(HttpStatus.BAD_REQUEST) @ExceptionHandler(MissingServletRequestParameterException.class) public String handleMissingServletRequestParameterException(MissingServletRequestParameterException e, Model model) { log.error("缺少请求参数", e); String message = "【缺少请求参数】" + e.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 400); return viewName; } /** * 400 - Bad Request */ @ResponseStatus(HttpStatus.BAD_REQUEST) @ExceptionHandler(HttpMessageNotReadableException.class) public String handleHttpMessageNotReadableException(HttpMessageNotReadableException e, Model model) { log.error("参数解析失败", e); String message = "【参数解析失败】" + e.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 400); return viewName; } /** * 400 - Bad Request */ @ResponseStatus(HttpStatus.BAD_REQUEST) @ExceptionHandler(MethodArgumentNotValidException.class) public String handleMethodArgumentNotValidException(MethodArgumentNotValidException e, Model model) { log.error("参数验证失败", e); BindingResult result = e.getBindingResult(); FieldError error = result.getFieldError(); String field = error.getField(); String code = error.getDefaultMessage(); String message = "【参数验证失败】" + String.format("%s:%s", field, code); model.addAttribute("message", message); model.addAttribute("code", 400); return viewName; } /** * 400 - Bad Request */ @ResponseStatus(HttpStatus.BAD_REQUEST) @ExceptionHandler(BindException.class) public String handleBindException(BindException e, Model model) { log.error("参数绑定失败", e); BindingResult result = e.getBindingResult(); FieldError error = result.getFieldError(); String field = error.getField(); String code = error.getDefaultMessage(); String message = "【参数绑定失败】" + String.format("%s:%s", field, code); model.addAttribute("message", message); model.addAttribute("code", 400); return viewName; } /** * 400 - Bad Request */ @ResponseStatus(HttpStatus.BAD_REQUEST) @ExceptionHandler(ConstraintViolationException.class) public String handleServiceException(ConstraintViolationException e, Model model) { log.error("参数验证失败", e); Set<ConstraintViolation<?>> violations = e.getConstraintViolations(); ConstraintViolation<?> violation = violations.iterator().next(); String message = "【参数验证失败】" + violation.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 400); return viewName; } /** * 400 - Bad Request */ @ResponseStatus(HttpStatus.BAD_REQUEST) @ExceptionHandler(ValidationException.class) public String handleValidationException(ValidationException e, Model model) { log.error("参数验证失败", e); String message = "【参数验证失败】" + e.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 400); return viewName; } /** * 404 - Not Found */ @ResponseStatus(HttpStatus.NOT_FOUND) @ExceptionHandler(NoHandlerFoundException.class) public String noHandlerFoundException(NoHandlerFoundException e, Model model) { log.error("Not Found", e); String message = "【页面不存在】" + e.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 404); return viewName; } /** * 405 - Method Not Allowed */ @ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED) @ExceptionHandler(HttpRequestMethodNotSupportedException.class) public String handleHttpRequestMethodNotSupportedException(HttpRequestMethodNotSupportedException e, Model model) { log.error("不支持当前请求方法", e); String message = "【不支持当前请求方法】" + e.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 405); return viewName; } /** * 415 - Unsupported Media Type */ @ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE) @ExceptionHandler(HttpMediaTypeNotSupportedException.class) public String handleHttpMediaTypeNotSupportedException(HttpMediaTypeNotSupportedException e, Model model) { log.error("不支持当前媒体类型", e); String message = "【不支持当前媒体类型】" + e.getMessage(); model.addAttribute("message", message); model.addAttribute("code", 415); return viewName; } /** * 统一异常处理 * * @param response * @param e * @return */ @ExceptionHandler(MyBusinessException.class) @ResponseBody public JsonResult processApiException(HttpServletResponse response, MyBusinessException e) { JsonResult result = new JsonResult(0, e.getMessage()); response.setStatus(200); response.setContentType("application/json;charset=UTF-8"); log.error("业务异常，提示前端操作不合法", e.getMessage(), e); return result; } /** * 获取其它异常。包括500 * * @param e * @return * @throws Exception */ @ExceptionHandler(value = Exception.class) public ModelAndView defaultErrorHandler(HttpServletRequest request, HttpServletResponse response, Exception e, Model model) throws IOException { e.printStackTrace(); 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