好的，我有一个过滤器
public class CrawlServlet implements Filter{
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
HttpServletRequest httpRequest = (HttpServletRequest) request;
String requestQueryString = httpRequest.getQueryString();
if ((requestQueryString != null) && (requestQueryString.contains("_escaped_fragment_"))) {
String str="http://127.0.0.1:8888/Myproject.html?gwt.codesvr=127.0.0.1:9997#!article";
// this url work fine, if i open it it will show article.
final WebClient webClient = new WebClient();
HtmlPage page = webClient.getPage(str);
PrintWriter out = response.getWriter();
out.println(page.asXml());
}
}
}
好的，现在我在eclipse中运行了我的应用程序，＆amp;打开网址http://127.0.0.1:8888/Myproject.html?gwt.codesvr=127.0.0.1:9997?_escaped_fragment_=article
然后我在eclipse中得到了这个错误
.GWTUpld .gwt-Button:HOVER,
.GWTUpld .DecoratedFileUpload .gwt-Button-over,
.GWTUpld .DecoratedFileUpload .gwt-Anchor-over,
.GWTUpld .DecoratedFileUpload .gwt-Label-over {
color: #af6b29;
}
......
.GWTUpld input[type="file"] {
cursor: pointer;
}
': null
java.util.EmptyStackException
at java.util.Stack.peek(Unknown Source)
at java.util.Stack.pop(Unknown Source)
at com.steadystate.css.parser.CSSOMParser$CSSOMHandler.endDocument(CSSOMParser.java:271)
at com.steadystate.css.parser.AbstractSACParser.handleEndDocument(AbstractSACParser.java:456)
at com.steadystate.css.parser.SACParserCSS3.styleSheet(SACParserCSS3.java:56)
at com.steadystate.css.parser.AbstractSACParser.parseStyleSheet(AbstractSACParser.java:284)
at com.steadystate.css.parser.SACParserCSS3.parseStyleSheet(SACParserCSS3.java:23)
at com.steadystate.css.parser.CSSOMParser.parseStyleSheet(CSSOMParser.java:146)
at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.parseCSS(CSSStyleSheet.java:818)
at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.(CSSStyleSheet.java:179)
at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.loadStylesheet(CSSStyleSheet.java:321)
at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLLinkElement.getSheet(HTMLLinkElement.java:130)
at com.gargoylesoftware.htmlunit.javascript.host.css.StyleSheetList.item(StyleSheetList.java:151)
at com.gargoylesoftware.htmlunit.javascript.host.Window.getComputedStyle(Window.java:1601)
at com.gargoylesoftware.htmlunit.javascript.host.Element.getCurrentStyle(Element.java:545)
at com.gargoylesoftware.htmlunit.html.DomNode.isDisplayed(DomNode.java:712)
at com.gargoylesoftware.htmlunit.WebClient$CurrentWindowTracker.webWindowContentChanged(WebClient.java:1671)
at com.gargoylesoftware.htmlunit.WebClient.fireWindowContentChanged(WebClient.java:742)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:440)
at com.gargoylesoftware.htmlunit.WebClient.loadDownloadedResponses(WebClient.java:2024)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:712)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$500(JavaScriptEngine.java:92)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:679)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:602)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:616)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:591)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptFunctionIfPossible(HtmlPage.java:985)
at com.gargoylesoftware.htmlunit.javascript.background.JavaScriptFunctionJob.runJavaScript(JavaScriptFunctionJob.java:53)
at com.gargoylesoftware.htmlunit.javascript.background.JavaScriptExecutionJob.run(JavaScriptExecutionJob.java:102)
at com.gargoylesoftware.htmlunit.javascript.background.JavaScriptJobManagerImpl.runSingleJob(JavaScriptJobManagerImpl.java:328)
at com.gargoylesoftware.htmlunit.javascript.background.DefaultJavaScriptExecutor.run(DefaultJavaScriptExecutor.java:162)
at java.lang.Thread.run(Unknown Source)
May 16, 2014 1:36:41 PM com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet parseCSS
SEVERE: Error parsing CSS from '/**
* The file contains styles for GWT widgets in the standard theme.
*
* In order to maintain cross-browser compatibility, the following syntax is
* used to create IE6 specific style rules:
* .gwt-Widget {
* property: rule applies to all browsers
* -property: rule applies only to IE6 (overrides previous rule)
* }
* * html .gwt-Widget {
* property: rule applies to all versions of IE
* }
*/
.......
': null
java.util.EmptyStackException
at java.util.Stack.peek(Unknown Source)
at java.util.Stack.pop(Unknown Source)
at com.steadystate.css.parser.CSSOMParser$CSSOMHandler.endDocument(CSSOMParser.java:271)
at com.steadystate.css.parser.AbstractSACParser.handleEndDocument(AbstractSACParser.java:456)
at com.steadystate.css.parser.SACParserCSS3.styleSheet(SACParserCSS3.java:56)
at com.steadystate.css.parser.AbstractSACParser.parseStyleSheet(AbstractSACParser.java:284)
at com.steadystate.css.parser.SACParserCSS3.parseStyleSheet(SACParserCSS3.java:23)
at com.steadystate.css.parser.CSSOMParser.parseStyleSheet(CSSOMParser.java:146)
at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.parseCSS(CSSStyleSheet.java:818)
at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.(CSSStyleSheet.java:179)
at com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet.loadStylesheet(CSSStyleSheet.java:321)
at com.gargoylesoftware.htmlunit.javascript.host.html.HTMLLinkElement.getSheet(HTMLLinkElement.java:130)
at com.gargoylesoftware.htmlunit.javascript.host.css.StyleSheetList.item(StyleSheetList.java:151)
at com.gargoylesoftware.htmlunit.javascript.host.Window.getComputedStyle(Window.java:1601)
at com.gargoylesoftware.htmlunit.javascript.host.Element.getCurrentStyle(Element.java:545)
at com.gargoylesoftware.htmlunit.html.DomNode.isDisplayed(DomNode.java:712)
at com.gargoylesoftware.htmlunit.WebClient$CurrentWindowTracker.webWindowContentChanged(WebClient.java:1671)
at com.gargoylesoftware.htmlunit.WebClient.fireWindowContentChanged(WebClient.java:742)
at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:440)
at com.gargoylesoftware.htmlunit.WebClient.loadDownloadedResponses(WebClient.java:2024)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:712)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$500(JavaScriptEngine.java:92)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:679)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:602)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:507)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:616)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.callFunction(JavaScriptEngine.java:591)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptFunctionIfPossible(HtmlPage.java:985)
at com.gargoylesoftware.htmlunit.javascript.background.JavaScriptFunctionJob.runJavaScript(JavaScriptFunctionJob.java:53)
at com.gargoylesoftware.htmlunit.javascript.background.JavaScriptExecutionJob.run(JavaScriptExecutionJob.java:102)
at com.gargoylesoftware.htmlunit.javascript.background.JavaScriptJobManagerImpl.runSingleJob(JavaScriptJobManagerImpl.java:328)
at com.gargoylesoftware.htmlunit.javascript.background.DefaultJavaScriptExecutor.run(DefaultJavaScriptExecutor.java:162)
at java.lang.Thread.run(Unknown Source)
这是因为我在css＆amp;中有/*** ***/评论行吗？那就是HtmlUnit无法解析的原因？
你能解决这个问题吗？
另外，我们如何确保HTMLUnit在所有类型的HTML代码中都能正常工作？
注意：我使用的是htmlunit-2.14
额外信息：这可能是导致问题的代码：
May 16, 2014 1:36:41 PM com.gargoylesoftware.htmlunit.javascript.host.css.CSSStyleSheet parseCSS
SEVERE: Error parsing CSS from '/**
* The file contains styles for GWT widgets in the standard theme.
*
* In order to maintain cross-browser compatibility, the following syntax is
* used to create IE6 specific style rules:
* .gwt-Widget {
* property: rule applies to all browsers
* -property: rule applies only to IE6 (overrides previous rule)
* }
* * html .gwt-Widget {
* property: rule applies to all versions of IE
* }
*/
body, table td, select {
font-family: Arial Unicode MS, Arial, sans-serif;
font-size: small;
}
pre {
font-family: "courier new", courier;
font-size: small;
}
body {
color: black;
margin: 0px;
border: 0px;
padding: 0px;
background: #fff;
direction: ltr;
}