[I've already looked at this one和相关票证无济于事。
我有，看起来像是最简单的例子
<h:form enctype="multipart/form-data" prependId="false">
<h:outputText value="File: "></h:outputText>
<h:inputFile value="#{configUploadController.uploadedFile}" />
<h:commandButton value="Save" type="submit" action="#{configUploadController.uploadFile}" style="color: red;"></h:commandButton>
</h:form>
我在uploadFile方法中添加了一个断点，但是它从来没有被击中。当我从表单中删除enctype时，它确实尝试提交，但随后出现了明显的错误...
javax.servlet.ServletException: Content-Type != multipart/form-data
[为了完整起见，我删除了<h:inputFile>和enctype，可以看到断点被击中。当我将enctype设置为text/plain时，它DOESNT达到了断点。但是，当我将enctype设置为乱码时，[[DOES命中了断点：（
如果有关系的话，我的web.xml ...
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!-- File(s) appended to a request for a URL that is not mapped to a web
component -->
<welcome-file-list>
<welcome-file>status.xhtml</welcome-file>
</welcome-file-list>
<context-param>
<param-name>com.sun.faces.expressionFactory</param-name>
<param-value>com.sun.el.ExpressionFactoryImpl</param-value>
</context-param>
<listener>
<description>Initializes Oracle JSF</description>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
<!-- Define the JSF servlet (manages the request processing life cycle for
JavaServer Faces) -->
<servlet>
<servlet-name>faces-servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<!-- Map following files to the JSF servlet -->
<servlet-mapping>
<servlet-name>faces-servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
</web-app>
我已经使用了ajax方法和HTML表单，所以我可以指定与servlet模式匹配的操作...