javax.servlet.ServletException:UT010016:不是io.undertow.servlet.spec.HttpServletRequestImpl.loadParts中的多部分请求

Question

我有一个JSF 2.2页面,下面的文件上传表单部署到WildFly 8.2.0.

<h:form>
    <h:inputFile value="#{filePair.miscPart}" />
    <h:commandButton value="submit" action="validationResult" />
</h:form>

当我提交它时,我得到以下例外:

javax.servlet.ServletException: UT010016: Not a multi part request
    at io.undertow.servlet.spec.HttpServletRequestImpl.loadParts(HttpServletRequestImpl.java:508)
    at io.undertow.servlet.spec.HttpServletRequestImpl.getParts(HttpServletRequestImpl.java:459)
    at com.sun.faces.renderkit.html_basic.FileRenderer.decode(FileRenderer.java:91)
    at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:831)
    at javax.faces.component.UIInput.decode(UIInput.java:771)
    at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1226)
    at javax.faces.component.UIInput.processDecodes(UIInput.java:676)
    at javax.faces.component.UIForm.processDecodes(UIForm.java:225)
    at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1221)
    at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1221)
    at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:929)
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646)
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
    at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.security.handlers.AuthenticationConstraintHandler.handleRequest(AuthenticationConstraintHandler.java:51)
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63)
    at io.undertow.servlet.handlers.security.ServletSecurityConstraintHandler.handleRequest(ServletSecurityConstraintHandler.java:56)
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)
    at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261)
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

这是怎么造成的,我该如何解决？

Answer 1

您忘记通过enctype属性设置表单编码类型.

<h:form>

它默认application/x-www-form-urlencoded为发送二进制数据(如通过二进制文件发送)不可用<input type="file">.在使用元素(由JSF生成)时,您需要multipart/form-data根据HTML规范将其设置为.以下是HTML规范的相关内容:<input type="file"><h:inputFile>

enctype=此属性指定用于将表单提交到服务器的内容类型(当值为method"post"时).此属性的默认值为"application/x-www-form-urlencoded".值"multipart/form-data"应与INPUT元素结合使用type="file".

因此,相应地修复它:

<h:form enctype="multipart/form-data">

也可以看看:

• 什么是multipart/form-data
• 如何使用JSF 2.2 <h:inputFile>上传文件？保存的文件在哪里？