Java中的java.lang.OutOfMemoryError [英] java.lang.OutOfMemoryError in Java
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问题描述
我想通过Java程序登录到 ORKUT ，
I want to login to ORKUT through a java progrram without involving IE or Firefox,
我正在通过以下方式为此使用 HTMLUnit :
I am using HTMLUnit for this in the following manner:
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlPasswordInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
public class HtmlUnit {
public void submittingForm() throws Exception {
final WebClient webClient = new WebClient();
// Get the first page
final HtmlPage page1 = webClient.getPage("https://www.google.com/accounts/ServiceLogin?service=orkut&hl=en-US&rm=false&continue=http%3A%2F%2Fwww.orkut.com%2FRedirLogin%3Fmsg%3D0%26page%3Dhttp%253A%252F%252Fwww.orkut.co.in%252FHome.aspx&cd=IN&passive=true&skipvpage=true&sendvemail=false");
System.out.println("Page1: " + page1.toString());
// Get the form that we are dealing with and within that form,
// find the submit button and the field that we want to change.
final HtmlSubmitInput button = page1.getElementByName("signIn");
final HtmlTextInput userName = page1.getElementByName("Email");
final HtmlPasswordInput password = page1.getElementByName("Passwd");
// Change the value of the text field
userName.setValueAttribute("username");
password.setValueAttribute("password");
// Now submit the form by clicking the button and get back the second page.
final HtmlPage page2 = button.click();
System.out.println("Page2: " + page2.toString());
}
public static void main(String[] args) {
try {
new HtmlUnit().submittingForm();
}catch(Exception ex) {
ex.printStackTrace();
}
}
}
但是运行上述程序后，出现以下错误:
But after running the above program, I got the following error:
Page1: HtmlPage(https://www.google.com/accounts/ServiceLogin?service=orkut&hl=en-US&rm=false&continue=http%3A%2F%2Fwww.orkut.com%2FRedirLogin%3Fmsg%3D0%26page%3Dhttp%253A%252F%252Fwww.orkut.co.in%252FHome.aspx&cd=IN&passive=true&skipvpage=true&sendvemail=false)@6011238
Sep 15, 2009 4:54:37 PM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Expected content type of 'application/javascript' or 'application/ecmascript' for remotely loaded JavaScript element at 'http://static1.orkut.com/js/gen/in_frame046.js', but got 'application/x-javascript'.
Sep 15, 2009 4:54:38 PM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Expected content type of 'application/javascript' or 'application/ecmascript' for remotely loaded JavaScript element at 'http://static1.orkut.com/js/gen/gtalk_client031.js', but got 'application/x-javascript'.
Sep 15, 2009 4:54:38 PM com.gargoylesoftware.htmlunit.IncorrectnessListenerImpl notify
WARNING: Expected content type of 'application/javascript' or 'application/ecmascript' for remotely loaded JavaScript element at 'http://static1.orkut.com/ifpc/ifpc.js', but got 'application/x-javascript'.
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at net.sourceforge.htmlunit.corejs.javascript.ObjToIntMap.rehashTable(ObjToIntMap.java:330)
at net.sourceforge.htmlunit.corejs.javascript.ObjToIntMap.ensureIndex(ObjToIntMap.java:415)
at net.sourceforge.htmlunit.corejs.javascript.ObjToIntMap.intern(ObjToIntMap.java:197)
at net.sourceforge.htmlunit.corejs.javascript.TokenStream.getToken (TokenStream.java:435)
at net.sourceforge.htmlunit.corejs.javascript.Parser.peekToken(Parser.java:313)
at net.sourceforge.htmlunit.corejs.javascript.Parser.variables(Parser.java:1791)
at net.sourceforge.htmlunit.corejs.javascript.Parser.statementHelper (Parser.java:959)
at net.sourceforge.htmlunit.corejs.javascript.Parser.statement(Parser.java:877)
at net.sourceforge.htmlunit.corejs.javascript.Parser.parse(Parser.java:549)
at net.sourceforge.htmlunit.corejs.javascript.Parser.parse(Parser.java:492)
at net.sourceforge.htmlunit.corejs.javascript.Context.compileImpl(Context.java:2404)
at net.sourceforge.htmlunit.corejs.javascript.Context.compileString(Context.java:1375)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory$TimeoutContext.compileString(HtmlUnitContextFactory.java:173)
at net.sourceforge.htmlunit.corejs.javascript.Context.compileString(Context.java:1364)
at com.gargoylesoftware.htmlunit.javascript.host.Window.custom_eval(Window.java:1143)
at com.gargoylesoftware.htmlunit.javascript.host.Window.jsxFunction_execScript(Window.java:1122)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at net.sourceforge.htmlunit.corejs.javascript.MemberBox.invoke(MemberBox.java:161)
at net.sourceforge.htmlunit.corejs.javascript.FunctionObject.call(FunctionObject.java:476)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpretLoop(Interpreter.java:1688)
at net.sourceforge.htmlunit.corejs.javascript.Interpreter.interpret(Interpreter.java:845)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.call(InterpretedFunction.java:164)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.doTopCall(ContextFactory.java:427)
at com.gargoylesoftware.htmlunit.javascript.HtmlUnitContextFactory.doTopCall(HtmlUnitContextFactory.java:263)
at net.sourceforge.htmlunit.corejs.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3058)
at net.sourceforge.htmlunit.corejs.javascript.InterpretedFunction.exec(InterpretedFunction.java:175)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$5.doRun(JavaScriptEngine.java:415)
at com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine$HtmlUnitContextAction.run(JavaScriptEngine.java:520)
at net.sourceforge.htmlunit.corejs.javascript.Context.call(Context.java:529)
at net.sourceforge.htmlunit.corejs.javascript.ContextFactory.call(ContextFactory.java:536)
所以，我不知道问题出在哪里.执行以下行时发生错误:
So, I don't understand where the problem is. The error occurs while executing the following line:
final HtmlPage page2 = button.click();
推荐答案
错误名称提示:Java虚拟机需要更多内存.您可以通过向jvm添加标志'-Xmx128M'来增加堆空间(或增加整数值，以防万一Java调用已经具有较小值的Xmx参数.
The name of error gives a hint: the Java virtual machine needs more memory. You can increase heap space by adding the flag '-Xmx128M' to the jvm (or increasing the integer value just in case, the java call already has a Xmx parameter with a smaller value.
在上面的示例中，您将拥有128 MB的堆空间.
With the example above you'll have 128 MByte heap space.
这篇关于Java中的java.lang.OutOfMemoryError的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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