那些遇到过的问题

相关疑难解决方法(0)

何时使用不同的日志级别

按死亡顺序记录消息有不同的方法:

  1. FATAL

  2. ERROR

  3. WARN

  4. INFO

  5. DEBUG

  6. TRACE

我如何决定何时使用哪个？

什么是一个很好的启发式使用？

logging

rao*_*son
2017 10-17
470
推荐指数
15
解决办法
27万
查看次数

无法关闭HtmlUnit日志记录消息

我正在使用HtmlUnit与通过Ajax与服务器交互的网页进行交互.在Ajax代码启动后不久,HtmlUnit会生成以下两条日志消息:

WARNING: Ignoring XMLHttpRequest.setRequestHeader for Content-length: it is a restricted header
Mar 3, 2011 3:32:47 PM com.gargoylesoftware.htmlunit.javascript.host.xml.XMLHttpRequest jsxFunction_setRequestHeader
WARNING: Ignoring XMLHttpRequest.setRequestHeader for Connection: it is a restricted header
Mar 3, 2011 3:32:47 PM com.gargoylesoftware.htmlunit.javascript.host.xml.XMLHttpRequest jsxGet_status

......接着是这个消息,重复了六次:

SEVERE: XMLHttpRequest.status was retrieved before the response was available.
Mar 3, 2011 3:32:47 PM com.gargoylesoftware.htmlunit.javascript.host.xml.XMLHttpRequest jsxGet_status

我无法弄清楚如何关闭这些消息.浏览代码表明它们是通过直接调用记录器产生的,而不是通过我可以提供无操作实现的处理程序对象产生的,正如我已经为CSS错误所做的那样.该的HtmlUnit登录页面中显示,添加此代码应工作:

System.getProperties().put("org.apache.commons.logging.simplelog.defaultlog", "fatal");
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......但它没有效果.我还尝试在调用java时添加以下选项:

-Dorg.apache.commons.logging.simplelog.defaultlog=fatal
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......但这也没有效果.

我想我可以在执行此代码时将stderr重定向到/ dev/null,但是可用的hacky解决方案是什么？

logging htmlunit

Sea*_*ean
lucky-day
14
推荐指数
3
解决办法
1万
查看次数

如何告诉 htmlunit 忽略某些错误

我目前正在试用 HtmlUnit。我想填写一个表格，然后提交。但这会导致错误，这似乎是由无法访问的文件引起的，从而导致连接重置被抛出。我怎样才能抑制这一点，因为考虑到整个网站的加载过程，这并不重要？不过，它似乎不会影响程序，我只是想让它静音。

Apr 05, 2012 12:25:13 PM com.gargoylesoftware.htmlunit.html.HtmlPage loadExternalJavaScriptFile
Schwerwiegend(severe): Error loading JavaScript from [*link*].
java.net.SocketException: Connection reset
    at java.net.SocketInputStream.read(Unknown Source)
    at java.net.SocketInputStream.read(Unknown Source)
    at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:149)
    at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:110)
    at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:264)
    at org.apache.http.impl.conn.DefaultResponseParser.parseHead(DefaultResponseParser.java:98)
    at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:252)
    at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:281)
    at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:247)
    at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:219)
    at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:298)
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:645)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:776)
    at com.gargoylesoftware.htmlunit.HttpWebConnection.getResponse(HttpWebConnection.java:152)
    at com.gargoylesoftware.htmlunit.WebClient.loadWebResponseFromWebConnection(WebClient.java:1439)
    at com.gargoylesoftware.htmlunit.WebClient.loadWebResponse(WebClient.java:1358)
    at com.gargoylesoftware.htmlunit.html.HtmlPage.loadJavaScriptFromUrl(HtmlPage.java:1008)
    at com.gargoylesoftware.htmlunit.html.HtmlPage.loadExternalJavaScriptFile(HtmlPage.java:950)
    at com.gargoylesoftware.htmlunit.html.HtmlScript.executeScriptIfNeeded(HtmlScript.java:349)
    at com.gargoylesoftware.htmlunit.html.HtmlScript$1.execute(HtmlScript.java:230)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.doProcessPostponedActions(JavaScriptEngine.java:642)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.access$400(JavaScriptEngine.java:79)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:590)
    at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:537)
    at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:538)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:499)
    at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:474) …
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java htmlunit

Sim*_*Sim
lucky-day
5
推荐指数
1
解决办法
8763
查看次数

如何通过htmlunit关闭详细报告？

htmlunit报告从css到解析页面上的错误的所有内容.

如何沉默？

htmlunit

KJW*_*KJW
lucky-day
4
推荐指数
1
解决办法
2927
查看次数

HtmlUnit异常

我无法理解此HTMLUnit异常的含义.当我在网页上的链接上调用click()时会发生这种情况.

Exception class=[net.sourceforge.htmlunit.corejs.javascript.WrappedException]
com.gargoylesoftware.htmlunit.ScriptException: Wrapped com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot read property "offsetWidth" from null (http://webapps6.doc.state.nc.us/opi/scripts/DHTMLmessages.js#95) (javascript url#297)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:534)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:537)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:538)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:432)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine.execute(JavaScriptEngine.java:407)
at com.gargoylesoftware.htmlunit.html.HtmlPage.executeJavaScriptIfPossible(HtmlPage.java:965)
at com.gargoylesoftware.htmlunit.html.HtmlAnchor.doClickAction(HtmlAnchor.java:87)
at com.gargoylesoftware.htmlunit.html.HtmlAnchor.doClickAction(HtmlAnchor.java:121)
at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1329)
at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1288)
at com.gargoylesoftware.htmlunit.html.HtmlElement.click(HtmlElement.java:1257)
at testapp.TestApp.main(TestApp.java:61)
Caused by: net.sourceforge.htmlunit.corejs.javascript.WrappedException: Wrapped com.gargoylesoftware.htmlunit.ScriptException: TypeError: Cannot read property "offsetWidth" from null (http://webapps6.doc.state.nc.us.js#95) (javascript url#297)
at net.sourceforge.htmlunit.corejs.javascript.Context.throwAsScriptRuntimeEx(Context.java:1802)
at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:196)
at net.sourceforge.htmlunit.corejs.javascript.FunctionObject.call(FunctionObject.java:479)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1701)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:854)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:164)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:429)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:267)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3183)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:175)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$5.doRun(JavaScriptEngine.java:423)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:528)
... …
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java htmlunit

use*_*644
lucky-day
4
推荐指数
1
解决办法
7576
查看次数

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