Spring Boot中使用AOP统一处理web层异常的方法

在springboot错误默认是跳转到 请求返回渲染路径中的error/错误页面中。

源码分析：defaulterrorviewresolver.java

 private modelandview resolve(string viewname, map<string, object> model) {
 string errorviewname = "error/" + viewname;
 templateavailabilityprovider provider = this.templateavailabilityproviders
  .getprovider(errorviewname, this.applicationcontext);
 if (provider != null) {
  return new modelandview(errorviewname, model);
 }
 return resolveresource(errorviewname, model);
 }

比如在application.properites中配置渲染页面为

#配置freemaker
spring.freemarker.template-loader-path=/web-inf/

如果不配置spring.freemarker.template-loader-path,springboot会在src/main/resources中的templates中的error文件下下找错误渲染的页面。

那么当出现错误时，系统会跳转到/web-inf/error/错误页面中。

使用aop进行web层异常处理

package com.niugang.aop;
import java.io.ioexception;
import javax.servlet.servletexception;
import javax.servlet.http.httpservletrequest;
import org.aspectj.lang.annotation.afterthrowing;
import org.aspectj.lang.annotation.aspect;
import org.slf4j.logger;
import org.slf4j.loggerfactory;
import org.springframework.stereotype.component;
import org.springframework.web.context.request.requestattributes;
import org.springframework.web.context.request.requestcontextholder;
import org.springframework.web.context.request.servletrequestattributes;
import org.springframework.web.servlet.modelandview;
/**
 * controller层统一异常处理
 * 
 * @author niugang
 *
 */
@aspect
@component
public class exceptioncontrollerascept {
 private logger logger = loggerfactory.getlogger(exceptioncontrollerascept.class);
 /**
 * 匿名切点的方式
 * 
 * @param ex
 * @throws servletexception
 * @throws ioexception
 */
 @afterthrowing(value = "execution(public * com.niugang.controller..*.*(..))", throwing = "ex")
    public modelandview aroundadvice(exception ex) throws servletexception, ioexception {
 modelandview modelandview = new modelandview();
 requestattributes requestattributes = requestcontextholder.getrequestattributes();
 servletrequestattributes r = (servletrequestattributes) requestattributes;
 httpservletrequest request = r.getrequest();
 modelandview.setviewname("500");
 // 第一如果是 runtimeexception
 if (ex instanceof runtimeexception) {
  logger.error("抛出运行时异常{}", ex.getmessage());
  modelandview.addobject("exception", ex.getmessage());
  // 跳转到错误页面
  modelandview.addobject("url", request.getrequesturl());
  return modelandview;
 }
 modelandview.addobject("exception","未知异常");
 return modelandview;
 }
}

总结

以上所述是小编给大家介绍的spring boot中使用aop统一处理web层异常，希望对大家有所帮助