Question

我遇到了一个问题，试图使用jsf 2.0渲染.png图像，其中JPG工作正常

h：graphicImage library =“img”name =“logo.png” - ＆gt;不起作用，空指针如下所示

h：graphicImage library =“img”name =“logo.jpg - ＆gt;没有问题

更新我从Chrome开发者工具控制台中看到以下内容资源解释为图像但使用MIME类型text / html

传输

不确定我是否需要在web.xml中设置内容类型

资源结构

的WebContent /资源/ IMG / logo.png

ErrorPageWrit E   An exception occurred
                                 java.lang.NullPointerException
        at com.ibm.ws.webcontainer.srt.SRTServletResponse.setContentType(SRTServletResponse.java:1345)
        at org.apache.myfaces.application.ResourceHandlerImpl.handleResourceRequest(ResourceHandlerImpl.java:333)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:183)
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1657)
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:939)
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
        at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
        at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3935)
        at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:276)
        at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:931)
        at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
        at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:276)
        at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
        at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
        at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
        at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
        at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
        at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
        at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
        at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
        at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
        at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)

Answer 1

解决。

似乎是mime映射的问题。由于某种原因，服务器无法识别png。在web.xml中为png添加了mime映射

使用MyFaces实施，WAS7。

相关文章：http://forum.primefaces.org/viewtopic.php?f=9&t=19880。

JSF 2.0。 .png的问题

1 个答案: