从CodeNameOne访问网页

Question

我正在尝试从CodeNameOne应用程序访问一个网页。奇怪的是，模拟器正在抛出错误，而应用程序在andriod mobile中工作得很好。

代码片段：

表单loginForm =新表单(“LoginNew”)；loginForm.setLayout(新的BorderLayout())；WebBrowser浏览器=新的WebBrowser() browser.setURL("http://mobile.apps-tek.com:8081/apps-webservices")；loginForm.addComponent(BorderLayout.CENTER，browser)；loginForm.show()；

在模拟器中运行时出错。

Attribute 'xmlns' is not supported for tag 'html'.
The tag 'script' is not supported in XHTML-MP 1.0
The tag 'script' is not supported in XHTML-MP 1.0
Attribute 'onload' is not supported for tag 'body'.
Attribute 'name' is not supported for tag 'form'.
The tag 'script' is not supported in XHTML-MP 1.0
The tag 'script' is not supported in XHTML-MP 1.0
The tag 'script' is not supported in XHTML-MP 1.0
Attribute 'onclick' is not supported for tag 'input'.
The tag 'script' is not supported in XHTML-MP 1.0
java.lang.NullPointerException
    at com.codename1.impl.javase.JavaSEPort.scale(JavaSEPort.java:3047)
    at com.codename1.ui.Image.scale(Image.java:930)
    at com.codename1.ui.Image.scaled(Image.java:900)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread.handleImage(ResourceThreadQueue.java:562)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread.handleImage(ResourceThreadQueue.java:511)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread.access$000(ResourceThreadQueue.java:360)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread$1.run(ResourceThreadQueue.java:479)
    at com.codename1.ui.Display.processSerialCalls(Display.java:1075)
    at com.codename1.ui.Display.edtLoopImpl(Display.java:1019)
    at com.codename1.ui.Display.mainEDTLoop(Display.java:925)
    at com.codename1.ui.RunnableWrapper.run(RunnableWrapper.java:120)
    at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:176)
[EDT] 0:0:0,0 - Exception in AppName version 1.0
[EDT] 0:0:0,1 - OS ios
[EDT] 0:0:0,1 - Error java.lang.NullPointerException
[EDT] 0:0:0,1 - Current Form null
[EDT] 0:0:0,1 - Exception: java.lang.NullPointerException - null
java.lang.NullPointerException
    at com.codename1.impl.javase.JavaSEPort.scale(JavaSEPort.java:3047)
    at com.codename1.ui.Image.scale(Image.java:930)
    at com.codename1.ui.Image.scaled(Image.java:900)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread.handleImage(ResourceThreadQueue.java:562)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread.handleImage(ResourceThreadQueue.java:511)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread.access$000(ResourceThreadQueue.java:360)
    at com.codename1.ui.html.ResourceThreadQueue$ResourceThread$1.run(ResourceThreadQueue.java:479)
    at com.codename1.ui.Display.processSerialCalls(Display.java:1075)
    at com.codename1.ui.Display.edtLoopImpl(Display.java:1019)
    at com.codename1.ui.Display.mainEDTLoop(Display.java:925)
    at com.codename1.ui.RunnableWrapper.run(RunnableWrapper.java:120)
    at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:176)

Answer 1

似乎您使用的是Java 6或Java 7，它们配置时没有Java支持。在没有Java代码的情况下运行时，可以默认使用feature浏览器组件，这是非常有限的，也是有问题的。

确保用于运行代码之一的VM是Java 7，并在其中包含了附加的Java库。