[英]How to serve static resources from a Vaadin/Spring application?
I have Vaadin web application with spring security integration for authentication. 我有Vaadin Web应用程序与Spring安全集成进行身份验证。 The configuration of the Vaadin servlet is pretty simple: Vaadin servlet的配置非常简单:
<servlet>
<servlet-name>Vaadin Application Servlet</servlet-name>
<servlet-class>com.example.SpringApplicationServlet</servlet-class>
<init-param>
<param-name>applicationBean</param-name>
<param-value>mainApplication</param-value>
</init-param>
<init-param>
<param-name>widgetset</param-name>
<param-value>com.example.widgetset.CustomWidgetSet</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>Vaadin Application Servlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
The servlet initializes the Spring Context and returns the Vaadin application. servlet初始化Spring Context并返回Vaadin应用程序。 I have also configured the security for that and have a custom login form configured like this: 我还为此配置了安全性,并具有如下配置的自定义登录表单:
<servlet>
<servlet-name>login</servlet-name>
<jsp-file>/jsp/login.jsp</jsp-file>
</servlet>
<servlet-mapping>
<servlet-name>login</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>login_error</servlet-name>
<jsp-file>/jsp/loginError.jsp</jsp-file>
</servlet>
<servlet-mapping>
<servlet-name>login_error</servlet-name>
<url-pattern>/login_error</url-pattern>
</servlet-mapping>
The login form is styled with an external css and there are also some images. 登录表单使用外部CSS进行样式设置,并且还有一些图像。 Basically the images are located in /jsp/img and the stylesheet in /jsp/login.css. 基本上,图像位于/ jsp / img中,样式表位于/jsp/login.css中。 So the WAR structure looks like: 所以WAR结构如下所示:
Neither the images nor the css gets loaded, because obviously all those requests are mapped to the vaadin servlet. 图像和css都没有加载,因为显然所有这些请求都被映射到vaadin servlet。 How can I define some static resources directory, which wouldn't be served by the Vaadin servlet? 如何定义一些静态资源目录,这些目录不会由Vaadin servlet提供? I have tried the spring mvc:resources but that didn't work. 我尝试过spring mvc:resources但是没有用。 Thank you for your help. 谢谢您的帮助。
Bye, Filip 再见,菲利普
I have figured this out. 我已经想到了这一点。 Although it is rather a workaround. 虽然它是一种解决方法。 I have mapped the Vaadin Application Servlet to something like /app/* instead of to /* (Remember that in this case you also have to map the same servlet to /VAADIN/*). 我已经将Vaadin Application Servlet映射到/ app / *而不是/ *(请记住,在这种情况下,您还必须将相同的servlet映射到/ VAADIN / *)。 With this configuration I am able to access the jsp directory from my webapp and everything works fine. 使用此配置,我可以从我的webapp访问jsp目录,一切正常。 I have deleted the whole Spring Resources configuration, as this just didn't work. 我删除了整个Spring Resources配置,因为这不起作用。
So once more, I am still pretty not pretty comfortable with this solution and would rather have my RESOURCES dir configured other way, but the client is happy :). 所以再一次,我仍然对这个解决方案不太满意,宁愿以其他方式配置我的RESOURCES目录,但客户很高兴:)。 If anyone has got the right solution I would appreciate to read it. 如果有人有正确的解决方案,我将不胜感激。
Use a url rewrite filter to get more contro on url mapping. 使用url重写过滤器可以更好地控制url映射。
<filter>
<filter-name>UrlRewriteFilter</filter-name>
<filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>UrlRewriteFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
then map Vaadin application to /vaadin for example and configure url maping in urlrewrite.xml 然后将Vaadin应用程序映射到/ vaadin,并在urlrewrite.xml中配置url maping
<rule>
<from>/styles/**</from>
<to last="true">/styles/$1</to>
</rule>
<rule>
<from>/images/**</from>
<to last="true">/images/$1</to>
</rule>
<rule>
<from>/**</from>
<to>/vaadin/$1</to>
</rule>
<outbound-rule>
<from>/vaadin/**</from>
<to>/$1</to>
</outbound-rule>
EDIT Other option is put static files in /VAADIN/ directory. 编辑其他选项是将静态文件放在/ VAADIN /目录中。
I have figured this out. 我已经想到了这一点。 Although it is rather a workaround. 虽然它是一种解决方法。 I have mapped the Vaadin Application Servlet to something like /app/* instead of to /* (Remember that in this case you also have to map the same servlet to /VAADIN/*). 我已经将Vaadin Application Servlet映射到/ app / *而不是/ *(请记住,在这种情况下,您还必须将相同的servlet映射到/ VAADIN / *)。 With this configuration I am able to access the jsp directory from my webapp and everything works fine. 使用此配置,我可以从我的webapp访问jsp目录,一切正常。 I have deleted the whole Spring Resources configuration, as this just didn't work. 我删除了整个Spring Resources配置,因为这不起作用。
So once more, I am still pretty not pretty comfortable with this solution and would rather have my RESOURCES dir configured other way, but the c 所以再一次,我仍然对这个解决方案不太满意,而宁愿以其他方式配置我的RESOURCES目录,但是c
Might be late but for who is still having problems with serving static content while using vaadin /*
mapping, the solution I found was using apache's default servlet org.apache.catalina.servlets.DefaultServlet
, so a web.xml will have something like: 可能会迟到但是对于在使用vaadin /*
映射时仍然遇到静态内容问题,我找到的解决方案是使用apache的默认servlet org.apache.catalina.servlets.DefaultServlet
,因此web.xml将具有如下内容:
<?xml version="1.0" encoding="UTF-8"?>
<web-app
id="WebApp_ID" version="3.0" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<servlet>
<servlet-name>myservlet</servlet-name>
<servlet-class>com.vaadin.server.VaadinServlet</servlet-class>
<init-param>
<param-name>UI</param-name>
<param-value>com.ex.myprj.MyUI</param-value>
</init-param>
<!-- If not using the default widget set-->
<init-param>
<param-name>widgetset</param-name>
<param-value>com.ex.myprj.AppWidgetSet</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>myservlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>Static content Servlet</servlet-name>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Static content Servlet</servlet-name>
<url-pattern>/customer/*</url-pattern>
</servlet-mapping>
</web-app>
So in the example above, despite having vaadin at /*
, the /customer/*
part will be served as static content by the DefaultServlet
所以在上面的例子中,尽管在/*
有vaadin, /customer/*
部分将由DefaultServlet
作为静态内容提供
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