调用方法时出错.并且无法启动 JVM - 本机包将构建但不会启动 [英] Error invoking method. and Failed to launch JVM - Native Package will build but not launch
问题描述
谁能更具体地说明我的问题所在以及如何解决?
我正在跑步:
- Windows 7
- Eclipse Mars.2 版本 (4.5.2)
我已经仔细并反复遵循关于 code.makery.ch (code.makery.ch/library/javafx-8-tutorial/part7/) 的 Marco 教程的说明
I've followed the instructions closely and repeatedly for Marco's Tutorial on code.makery.ch (code.makery.ch/library/javafx-8-tutorial/part7/)
我之前部署过这个程序的一个较早的原生包，遇到了一些麻烦，但最终成功添加
I've deployed an earlier native package of this program before, with some trouble, but eventually successfully after adding
-vm
C:\Program Files\Java\jdk1.8.0_91\bin\javaw.exe
到eclipse.ini
to eclipse.ini
最终让ant build成功运行后，
After finally getting the ant build to run successfully,
do-deploy:
[copy] Copying 2 files to C:\Users\administrator.SUNDANCE\IdeaProjects\POA 1.1 Build Master\POA 1.1 - Try 1\build\dist\libs
[mkdir] Created dir: C:\Users\administrator.SUNDANCE\IdeaProjects\POA 1.1 Build Master\POA 1.1 - Try 1\build\build\classes\META-INF
Using base JDK at: C:\Program Files\Java\jdk1.8.0_91\jre
Using base JDK at: C:\Program Files\Java\jdk1.8.0_91\jre
Installer (.exe) saved to: C:\Users\administrator.SUNDANCE\IdeaProjects\POA 1.1 Build Master\POA 1.1 - Try 1\build\deploy\bundles
BUILD SUCCESSFUL
Total time: 56 seconds
我的主文件如下所示:
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.stage.Stage;
/**
* Created by Brad on 5/20/2016.
* Solely used to load the FXML and set the icons. Everything else is done in Controller.java
*/
public class Main extends Application {
public static FXMLLoader loader;
//Icon from https://icons8.com
@Override
public void start(Stage primaryStage) throws Exception{
loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/Arrivals_Layout1.fxml"));
Parent root = loader.load();
primaryStage.getIcons().add(new Image(ClassLoader.getSystemResourceAsStream("resources/images/Pallet-96.png")));
primaryStage.getIcons().add(new Image(ClassLoader.getSystemResourceAsStream("resources/images/pallet_96_allsizes.ico")));
primaryStage.setTitle("Purchase Order Arrivals");
primaryStage.setScene(new Scene(root));
primaryStage.setMinWidth(820);
primaryStage.setMinHeight(375);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
我的包资源管理器看起来像这个，如果有帮助的话我的路径:C:\ProgramData\Oracle\Java\javapath;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\IBM\Client Access\Emulator;C:\Program Files (x86)\IBM\Client Access\Shared;C:\Program Files (x86)\IBM\Client Access\;C:\Program Files\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files\TortoiseHg\;C:\Program Files (x86)\Inno Setup 5
My Package Explorer looks something like this, if it helps
My PATH: C:\ProgramData\Oracle\Java\javapath;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\IBM\Client Access\Emulator;C:\Program Files (x86)\IBM\Client Access\Shared;C:\Program Files (x86)\IBM\Client Access\;C:\Program Files\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files\TortoiseHg\;C:\Program Files (x86)\Inno Setup 5
build.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project name="POA 1.1 - Try 1" default="do-deploy" basedir="." xmlns:fx="javafx:com.sun.javafx.tools.ant">
<target name="init-fx-tasks">
<path id="fxant">
<filelist>
<file name="${java.home}\..\lib\ant-javafx.jar"/>
<file name="${java.home}\lib\jfxrt.jar"/>
<file name="${basedir}"/>
</filelist>
</path>
<taskdef resource="com/sun/javafx/tools/ant/antlib.xml"
uri="javafx:com.sun.javafx.tools.ant"
classpathref="fxant"/>
</target>
<target name="setup-staging-area">
<delete dir="externalLibs" />
<delete dir="project" />
<delete dir="projectRefs" />
<mkdir dir="externalLibs" />
<copy todir="externalLibs">
<fileset dir="C:\Program Files\Java\sqljdbc_4.2\enu">
<filename name="sqljdbc42.jar"/>
</fileset>
</copy>
<copy todir="externalLibs">
<fileset dir="C:\Users\administrator.SUNDANCE\IdeaProjects\POA 1.1 Build Master\POA 1.1 - Try 1\build\dist">
<filename name="POA 1.1 - Try 1.jar"/>
</fileset>
</copy>
<mkdir dir="project" />
<copy todir="project">
<fileset dir="C:\Users\administrator.SUNDANCE\IdeaProjects\POA 1.1 Build Master\POA 1.1 - Try 1">
<include name="src/**" />
</fileset>
</copy>
<mkdir dir="projectRefs" />
</target>
<target name='do-compile'>
<delete dir="build" />
<mkdir dir="build/src" />
<mkdir dir="build/libs" />
<mkdir dir="build/classes" />
<!-- Copy project-libs references -->
<copy todir="build/libs">
<fileset dir="externalLibs">
<include name="sqljdbc42.jar"/>
<include name="POA 1.1 - Try 1.jar"/>
</fileset>
</copy>
<!-- Copy project references -->
<!-- Copy project sources itself -->
<copy todir="build/src">
<fileset dir="project/src">
<include name="**/*"/>
</fileset>
</copy>
<javac includeantruntime="false" source="1.8" target="1.8" srcdir="build/src" destdir="build/classes" encoding="Cp1252">
<classpath>
<fileset dir="build/libs">
<include name="*"/>
</fileset>
</classpath>
</javac>
<!-- Copy over none Java-Files -->
<copy todir="build/classes">
<fileset dir="project/src">
<exclude name="**/*.java"/>
</fileset>
</copy>
</target>
<target name="do-deploy" depends="setup-staging-area, do-compile, init-fx-tasks">
<delete file="dist"/>
<delete file="deploy" />
<mkdir dir="dist" />
<mkdir dir="dist/libs" />
<copy todir="dist/libs">
<fileset dir="externalLibs">
<include name="*" />
</fileset>
</copy>
<fx:resources id="appRes">
<fx:fileset dir="dist" includes="POA 1.1 - Try 1.jar"/>
<fx:fileset dir="dist" includes="libs/*"/>
<fx:fileset dir="dist" includes="resources/**"/>
</fx:resources>
<fx:application id="fxApplication"
name="Purchase Order Arrivals"
mainClass="Main"
version="1.1"
/>
<mkdir dir="build/classes/META-INF" />
<fx:jar destfile="dist/POA 1.1 - Try 1.jar">
<fx:application refid="fxApplication"/>
<fileset dir="build/classes">
</fileset>
<fx:resources refid="appRes"/>
<manifest>
<attribute name="Implementation-Vendor" value="Ugma Development"/>
<attribute name="Implementation-Title" value="Purchase Order Arrivals"/>
<attribute name="Implementation-Version" value="1.1"/>
<attribute name="JavaFX-Feature-Proxy" value="None"/>
</manifest>
</fx:jar>
<mkdir dir="deploy" />
<!-- Need to use ${basedir} because somehow the ant task is calculating the directory differently -->
<fx:deploy
embedJNLP="false"
extension="false"
includeDT="false"
offlineAllowed="true"
outdir="${basedir}/deploy"
outfile="POA 1.1 - Try 1" nativeBundles="exe"
updatemode="background" >
<fx:platform basedir="${java.home}"/>
<fx:info title="POA 1.1 - Try 1" vendor="Ugma Development"/>
<fx:application refId="fxApplication"/>
<fx:resources refid="appRes"/>
</fx:deploy>
</target>
</project>
生成 .exe 并将程序安装在/AppData 中.
The .exe is generated and installs the program in /AppData.
该程序将在 Eclipse 中编译并运行良好，但是当我运行已安装的版本时，我得到:
The program will compile and run fine in Eclipse, but when I run the installed version, I get:
调用方法时出错.
首先，然后点击确定
无法启动 JVM
我似乎什么都试过了:
我已经阅读了多个类似的问题，并在互联网上搜索过，但还没有解决这个问题.我读过的许多答案含糊不清或没有答案的例子:
I've read multiple similar questions, and have scoured the internet, but have yet to vault this problem. Examples of the many I've read with vague or no answers:
因为部署不精通，Marco 自己说要来问一下 Stack Exchange 的强大世界:http://code.makery.ch/library/javafx-8-tutorial/part7/#comment-2233862311
Because he is less masterful in deployment, Marco himself said to come ask the mighty world of Stack Exchange: http://code.makery.ch/library/javafx-8-tutorial/part7/#comment-2233862311
再次说明我的问题出在哪里以及如何解决?
推荐答案
我想通了！
在两次、三次检查依赖项并看到它编译然后构建正常后，我怀疑位于 build/deploy/{yourProjectName}.jar
After double, triple checking the dependencies and seeing that it both compiled and then built fine, I suspected the jar file which is located at build/deploy/{yourProjectName}.jar
如果您仅在安装后才收到错误，则在安装目录中运行 jar 是有意义的.( AppData/Local/{ApplicationTitle}/app/{yourProjectName}.jar )
If you're getting the errors only once it is installed, it makes sense to run the jar in the installation directory. ( AppData/Local/{ApplicationTitle}/app/{yourProjectName}.jar )
我在命令行上运行它以查看它是否抛出异常:
I ran it on the command line to see if it was throwing an exception:
为了轻松导航到我在资源管理器中保存项目的目录，然后将其复制到命令行.
To easily navigate to the directory I noted where I had saved my project in Explorer and then copied that to the command line.
打开命令提示符
Open command prompt
Win + r
cmd + 回车
导航到目录
cd {ProjectPath}\build\deploy
运行jar文件
java -jar "{YourJar}.jar"
因为我通过命令提示符执行了 jar，所以 java 有地方向我展示异常！
Because I executed the jar via the command prompt, java had somewhere to show me the exception!
C:\Users\administrator.SUNDANCE\IdeaProjects\PODTester_Layout8\build\deploy>java
-jar "PODTester_Layout8.jar"
java.io.FileNotFoundException: src\resources\Carrier List.txt (The system cannot
find the path specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileReader.<init>(Unknown Source)
在查看我的代码时，我认为它没有找到该文件，因为显式引用了 src.我修好了，瞧！重建后，安装的应用程序工作！
Upon reviewing my code, I figured that it wasn't finding the file because of the explicit reference to src. I fixed that and lo and behold! Upon rebuilding, the installed application worked!
如果你的原生包给你一个
调用方法时出错.
和一个
无法启动 JVM
通过命令提示符运行你的 jar 文件，看看它是否抛出异常.
现在，如果您想了解有关我的具体问题以及我修复它的过程的详细信息，请访问:
Now if you want details about my specific problem and the process I went through to fix it, here you go:
我认为这可能与依赖项有关(尤其是我包括 sqljdbc 驱动程序)，但事实证明这不是依赖项问题.问题在于.jar 仅在安装后 引发异常. 使错误如此难以理解的是非常通用的无法调用方法."这给了我很少的新信息.
I thought it might've been something to do with dependencies (especially with me including the sqljdbc driver), but it turns out it wasn't a dependency issue. The problem was that the .jar was throwing an exception only once installed. What made the error so hard to understand was the oh-so-generic "Could not invoke method." which gave me little new information.
为了减轻未来的类似问题，我添加了一个 showExceptionDialog() 方法(灵感来自 Marco Jacob 的作品) :
To mitigate future similar problems I added a showExceptionDialog() method (inspired by Marco Jacob's work) :
/**
* Shows a dialog box when an exception occurs instead of just doing nothing.
*
* Once installed this will help to diagnose problems instead of letting
* them go unnoticed.
*
* @param e the exception to print; it's stacktrace will be shown as well
*/
public static void showExceptionDialog(Exception e) {
Alert alert = new Alert(Alert.AlertType.ERROR);
alert.setTitle("Exception Dialog");
alert.setHeaderText("An error occurred:");
String content = "Error: ";
if (null != e) {
content += e.toString() + "\n\n";
}
alert.setContentText(content);
Exception ex = new Exception(e);
//Create expandable Exception.
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
ex.printStackTrace(pw);
String exceptionText = sw.toString();
//Set up TextArea
TextArea textArea = new TextArea(exceptionText);
textArea.setEditable(false);
textArea.setWrapText(true);
textArea.setPrefHeight(600);
textArea.setPrefWidth(800);
//Set expandable Exception into the dialog pane.
alert.getDialogPane().setExpandableContent(textArea);
alert.showAndWait();
}
<小时>
关于我的问题的具体细节:
在我的程序中，我有一个名为 Carrier List.txt 的文件被读取和写入，它存储在 resources 文件夹中.
Specific details about my problem:
In my program I had a file called Carrier List.txt being read and written to, and it was stored in the resources folder.
在 IntelliJ 和 Eclipse 中它编译得很好，因为它可以找到 src/resources/Carrier List.txt 很好.当我按照 Marco Jacob's 手动复制资源文件夹时，事情会很好部署教程，但我明确引用了
In IntelliJ and Eclipse it compiled just fine because it could find src/resources/Carrier List.txt just fine. Things would have been just fine when I manually copied the resources folder as per Marco Jacob's Deployment Tutorial, but I explicitly referenced
src/resources/Carrier List.txt
src/resources/Carrier List.txt
在我的代码中，而不仅仅是
in my code instead of just
资源/运营商列表.txt
resources/Carrier List.txt
这篇关于调用方法时出错.并且无法启动 JVM - 本机包将构建但不会启动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！
