使用 Spring DispatcherServlet 自定义 404 [英] Custom 404 using Spring DispatcherServlet

问题描述

我已经如下设置了 web.xml.我还有一个基于注解的控制器，它接受任何 URL 模式，然后转到相应的 jsp(我已经在 -servlet.xml 中设置了它).但是，如果我转到以 .html 结尾的页面(并且其 jsp 不存在)，我将看不到自定义 404 页面(并在日志中看到以下错误).任何不以 .html 结尾的页面，我都可以看到自定义 404 页面.

I've set up web.xml as below. I also have an annotation-based controller, which takes in any URL pattern and then goes to the corresponding jsp (I've set that up in the -servlet.xml). However, If I go to a page that ends in .html (and whose jsp doesn't exist), I don't see the custom 404 page (and see the below error in the log). Any page that doesn't end in .html, I can see the custom 404 page.

如何为通过 DispatcherServlet 的任何页面配置自定义 404 页面?

How can I configure to have a custom 404 page for any page that goes through the DispatcherServlet?

还想补充一点，如果我将错误页面设置为静态页面(即 error.htm)，它可以工作，但如果我将其更改为 jsp(即 error.jsp)，则会出现 IllegalStateException.任何帮助将不胜感激.

Also want to add that if I set my error page to a static page (ie. error.htm) it works, but if I change it to a jsp (ie. error.jsp), I get the IllegalStateException. Any help would be appreciated.

记录错误

Caused by: java.lang.IllegalStateException: getOutputStream() has already been called for this response
at org.apache.catalina.connector.Response.getWriter(Response.java:606)
at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:195)
at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:124)

控制器

@RequestMapping(value = {"/**"})

public ModelAndView test() {

    ModelAndView modelAndView = new ModelAndView();

    return modelAndView;
}

web.xml

<servlet>
 <servlet-name>my_servlet</servlet-name>
 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>

...

<servlet-mapping>
    <servlet-name>my_servlet</servlet-name>
    <url-pattern>*.html</url-pattern>
</servlet-mapping>

...

<error-page>
    <error-code>404</error-code>
    <location>/error.html</location>
</error-page>

推荐答案

一种选择是通过调度程序 servlet 映射所有错误页面.

One option is to map all your error pages through your dispatcher servlet.

创建一个新的 HTTP 错误控制器:

@Controller
public class HTTPErrorController {

    @RequestMapping(value="/errors/404.html")
    public String handle404() {
        return "errorPageTemplate";
    }

    @RequestMapping(value="/errors/403.html")
    ...

}

在 web.xml 中映射错误页面

<error-page>
    <error-code>404</error-code>
    <location>/errors/404.html</location>
</error-page>

这篇关于使用 Spring DispatcherServlet 自定义 404的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！