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社区首页 >问答首页 >Liferay和struts2

问Liferay和struts2
EN

Stack Overflow用户
提问于 2014-02-21 12:24:34
回答 1查看 1K关注 0票数 1

对不起梅英语不好。

我尝试在struts2救生衣portlet中下载docx文件。

在我的portlet.xml中，我指定portlet类：

代码语言：javascript
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<portlet-name>test-portlet</portlet-name>
<display-name>Test</display-name>
    <portlet-class>org.apache.struts2.portlet.dispatcher.Jsr286Dispatcher</portlet-class>
    <init-param>
        <name>viewNamespace</name>
        <value>/view</value>
    </init-param>

在struts.xml中的行动：

代码语言：javascript
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<action name="GenerateReport" class="org.test.GenerateReportAction"
        method="generateReport">
        <result name="success" type="stream">
            <param name="inputName">resultInputStream</param>
            <param name="contentType">application/msword</param>
            <param name="contentDisposition">attachment;filename="Test_SumaryReport.docx"</param>
            <param name="bufferSize">1024</param>
            <param name="contentLength"></param>
        </result>
    </action>

在jsp中：

代码语言：javascript
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<a href='<s:url action='GenerateReport' > </s:url>'>download</a>

当我尝试下载文件时，我有一个例外：

代码语言：javascript
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10:26:59,805 ERROR [Jsr168Dispatcher:38] Could not execute action java.lang.IllegalArgumentException: application/msword is not a supported mime type
    at com.liferay.portlet.MimeResponseImpl.setContentType(MimeResponseImpl.java:159)
    at org.apache.struts2.portlet.servlet.PortletServletResponseJSR286.setContentType(PortletServletResponseJSR286.java:148)
    at org.test.GenerateReportAction.generateReport(GenerateReportAction.java:62)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)
    at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
    at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
    at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)
    at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.portlet.interceptor.PortletAwareInterceptor.intercept(PortletAwareInterceptor.java:82)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.portlet.interceptor.PortletStateInterceptor.intercept(PortletStateInterceptor.java:57)
    at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
    at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
    at org.apache.struts2.portlet.dispatcher.Jsr168Dispatcher.serviceAction(Jsr168Dispatcher.java:463)
    at org.apache.struts2.portlet.dispatcher.Jsr168Dispatcher.render(Jsr168Dispatcher.java:334)
    at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:100)
    at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:64)
    at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:111)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilterChain.doFilter(InvokerFilterChain.java:72)
    at com.liferay.portal.kernel.servlet.filters.invoker.InvokerFilter.doFilter(InvokerFilter.java:73)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
    at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:593)
    at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:530)
    at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:534)

为什么在portlet类Jsr168Dispatcher时使用Jsr286Dispatcher？

如果你知道如何解决这个问题，那就太好了！

非常感谢!

struts2
liferay
java
EN

回答 1

Stack Overflow用户

发布于 2014-02-22 16:23:33

引用https://stackoverflow.com/a/17743269/13447的回答：

Liferay有一个示例struts portlet，它包含一个下载的自定义类型，没有嵌入到完整的门户页面中，例如，内容类型可能与通常门户的HTML不同。在这个例子中，它是image/jpeg。根据你的问题应用这个方法。

您必须理解，对struts操作的典型“操作”请求将是生成的HTML页面的一部分，例如，它必须具有适当的HTML mimetype。如果您执行资源请求(就像Aleksandr M在他关于错误: application/pdf不是受支持的mime类型的答复中所建议的那样)，您可以提供任何内容类型。

Jsr168Dispatcher是超型Jsr286Dispatcher。因此，对于每个Jsr286Dispatcher不覆盖的方法，堆栈跟踪列出了实际实现方法的类。

http://struts.apache.org/release/2.3.x/struts2-plugins/struts2-portlet-plugin/apidocs/org/apache/struts2/portlet/dispatcher/Jsr286Dispatcher.html

票数 0
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页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/21934450

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