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java创建包含外部文本和ser文件的可运行Jar

2 周 Questions & Answers

我尝试了很多方法来创建可执行jar，但4个小时后我放弃了。我试图在主类位于控制器中的项目中创建可执行的jar文件。基本上，我尝试了使用export/runnable JAR文件，并提供了各种选项，包括生成ant脚本。我在终端机上总是有类似的错误

当我运行终端时

java -jar fruitStore.jar

上面写着

    bmj@OZ:~/Documents$ java -jar fruitStoreApp.jar 
java.io.FileNotFoundException: customers.ser (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at model.Shop.loadCustomers(Shop.java:250)
    at model.Shop.<init>(Shop.java:121)
    at model.Shop.getInstance(Shop.java:140)
    at model.Model.<init>(Model.java:12)
    at GUI.CustomerMainPanel.<init>(CustomerMainPanel.java:24)
    at GUI.MainMenuGUI.<init>(MainMenuGUI.java:50)
    at GUI.MainMenuGUI.getInstance(MainMenuGUI.java:35)
    at model.View.<init>(View.java:49)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
java.io.FileNotFoundException: users.ser (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at model.Shop.loadUsers(Shop.java:210)
    at model.Shop.<init>(Shop.java:122)
    at model.Shop.getInstance(Shop.java:140)
    at model.Model.<init>(Model.java:12)
    at GUI.CustomerMainPanel.<init>(CustomerMainPanel.java:24)
    at GUI.MainMenuGUI.<init>(MainMenuGUI.java:50)
    at GUI.MainMenuGUI.getInstance(MainMenuGUI.java:35)
    at model.View.<init>(View.java:49)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
java.io.FileNotFoundException: suppliers.ser (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at model.Shop.loadSuppliers(Shop.java:190)
    at model.Shop.<init>(Shop.java:123)
    at model.Shop.getInstance(Shop.java:140)
    at model.Model.<init>(Model.java:12)
    at GUI.CustomerMainPanel.<init>(CustomerMainPanel.java:24)
    at GUI.MainMenuGUI.<init>(MainMenuGUI.java:50)
    at GUI.MainMenuGUI.getInstance(MainMenuGUI.java:35)
    at model.View.<init>(View.java:49)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
java.io.FileNotFoundException: stocks.ser (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at model.Shop.loadStock(Shop.java:230)
    at model.Shop.<init>(Shop.java:124)
    at model.Shop.getInstance(Shop.java:140)
    at model.Model.<init>(Model.java:12)
    at GUI.CustomerMainPanel.<init>(CustomerMainPanel.java:24)
    at GUI.MainMenuGUI.<init>(MainMenuGUI.java:50)
    at GUI.MainMenuGUI.getInstance(MainMenuGUI.java:35)
    at model.View.<init>(View.java:49)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
java.io.FileNotFoundException: sales.ser (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at model.Shop.loadSales(Shop.java:150)
    at model.Shop.<init>(Shop.java:126)
    at model.Shop.getInstance(Shop.java:140)
    at model.Model.<init>(Model.java:12)
    at GUI.CustomerMainPanel.<init>(CustomerMainPanel.java:24)
    at GUI.MainMenuGUI.<init>(MainMenuGUI.java:50)
    at GUI.MainMenuGUI.getInstance(MainMenuGUI.java:35)
    at model.View.<init>(View.java:49)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
java.io.FileNotFoundException: orders.ser (No such file or directory)
    at java.io.FileInputStream.open(Native Method)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at model.Shop.loadOrders(Shop.java:170)
    at model.Shop.<init>(Shop.java:127)
    at model.Shop.getInstance(Shop.java:140)
    at model.Model.<init>(Model.java:12)
    at GUI.CustomerMainPanel.<init>(CustomerMainPanel.java:24)
    at GUI.MainMenuGUI.<init>(MainMenuGUI.java:50)
    at GUI.MainMenuGUI.getInstance(MainMenuGUI.java:35)
    at model.View.<init>(View.java:49)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)
Caused by: javax.imageio.IIOException: Can't read input file!
    at javax.imageio.ImageIO.read(ImageIO.java:1301)
    at GUI.WelcomeScreenGUI.<init>(WelcomeScreenGUI.java:33)
    at model.View.<init>(View.java:51)
    at model.Controller.<init>(Controller.java:42)
    at model.Controller.main(Controller.java:805)
    ... 5 more

我知道问题出在哪里。它不会将图片上标记的文件附加到jar上

picture with needed files

我的问题是：如何添加这些文件？你能详细回答我吗。一个条件。我不能更改文件的位置

我读到了一些关于Maven的解决方案，由于对Maven缺乏了解，我希望避免使用这些解决方案

提前感谢您的快速回复


共 (1) 个答案

  1. # 1 楼答案

    看完代码后，我看到您已经设置了文件名，并且正在使用FileInputStream从文件系统读取

    private String saleFile = "sales.ser";
...
public void loadSales(String inPutFile) {
    try {
        FileInputStream fileIn = new FileInputStream(inPutFile);

    因此，程序将在当前工作目录中查找sale.ser。在IDE中，工作目录通常是项目根目录，这就是文件所在的位置，这就是它工作的原因

    既然你不能修改代码，这里有一些建议

    运行jar时，需要从当前工作目录运行jar。导出jar时，将其导出到项目根目录。当你跑步时，确保你在项目根目录下

    可能更好的方法是编写脚本来启动程序（这很常见）。这将为你如何/在何处启动应用程序提供更大的灵活性。我不是最擅长编写脚本的人，所以我只说最基本的，但你可能想根据你想如何启动应用程序和定位资源来让它更复杂。用这个。下面的bat文件示例。bat文件也应该在项目根目录中

    @echo off
setlocal

if "%JAVACMD%" == "" set JAVACMD=%JAVA_HOME%\bin\java.exe
if "%FRUITSTAND_HOME%" == "" set FRUITSTAND_HOME=%~dp0

cd "%FRUITSTAND_HOME%"
"%JAVACMD%" -cp "%FRUITSTAND_HOME%\lib\*" -jar "%FRUITSTAND_HOME%\fruitStoreApp.jar"
endlocal

    然后（从项目根目录）只需运行fruitStoreApp.bat

    我测试了一下，效果很好。我只得到{}的{}{}和{}，因为。。。它们不存在（在你的项目中——至少在你的github中不存在）

    看起来您正在使用bash，所以您需要编写一个简单的bash脚本。我将同时创建.bat和.sh文件，这是非常常见的，以允许Windows和Unix用户访问