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
1
2
3
4
5
6
7
8
9
|
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
1
2
|
#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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
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,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:http://blog.csdn.net/niugang0920/article/details/79450901