Java：系统找不到文件 C:\ ... java.exe
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Java: System cannot find the file C:\ ... java.exe
提问by rni902
I have installed Java 8 and set my JAVA_HOMEand JRE_HOMEpaths and added %JAVA_HOME%to the start of the pathvariable.
我已经安装了 Java 8 并设置了我的JAVA_HOME和JRE_HOME路径并添加%JAVA_HOME%到path变量的开头。
I created a helloworld.java application and am able to compile it using:
我创建了一个 helloworld.java 应用程序并且能够使用以下方法编译它：
javac helloworld.java
However, when I try to run:
但是，当我尝试运行时：
java helloworld
你好世界
I get the error:
我收到错误：
The system cannot find the file C:\ProgramData\Oracle\Java\javapath\java.exe
How can I solve this?
我该如何解决这个问题？
采纳答案by hab
Just set %JAVA_HOME%/binto your path variable.
只需将 %JAVA_HOME% /bin 设置为您的路径变量。
回答by rni902
I was able to solve this issue. To do so I used the advice from this answer:
我能够解决这个问题。为此，我使用了这个答案中的建议：
Java SE Development Kit 8u25 on a 64-bit Windows 8
64 位 Windows 8 上的 Java SE 开发工具包 8u25
Set the following user environment variables (== environment variables of type user variables)
设置以下用户环境变量（==用户变量类型的环境变量）
?JAVA_HOME : C:\Program Files\Java\jdk1.8.0_25
?JDK_HOME : %JAVA_HOME%
?JRE_HOME : %JAVA_HOME%\jre
?CLASSPATH : .;%JAVA_HOME%\lib;%JAVA_HOME%\jre\lib
?PATH : your-unique-entries;%JAVA_HOME%\bin
(make sure that the longish your-unique-entries does not contain any other references to another Java installation folder.)
（确保较长的 your-unique-entries 不包含对另一个 Java 安装文件夹的任何其他引用。）
回答by Atul Pundir
1.Just go to C:\ProgramData\Oracle\Java\javapath\
1.只需转到 C:\ProgramData\Oracle\Java\javapath\
2.You will find there shortcuts for java.exe,javaw.exe,javaws.exe which are pointing to a location where they actually are not existing now
2.你会发现有java.exe、javaw.exe、javaws.exe的快捷方式，它们指向一个现在实际上不存在的位置
3.Go to the jre location where you have installed java like C:\Program Files\Java\jre6\bin
3.转到安装java的jre位置，如C:\Program Files\Java\jre6\bin
You will find java.exe,javaw.exe,javaws.exe
Create shortcuts for these files and replace with the ones which are present in C:\ProgramData\Oracle\Java\javapath.
你会发现 java.exe,javaw.exe,javaws.exe
为这些文件创建快捷方式并替换为 C:\ProgramData\Oracle\Java\javapath 中存在的快捷方式。
It works
有用
回答by Janac Meena
If you are blocked from modifying system variables from command line, but are able to open up an elevatedcommand prompt, then run a command like this:
如果您无法从命令行修改系统变量，但可以打开提升的命令提示符，请运行如下命令：
setx \M JAVA_HOME "C:\Program Files\Java\jdk1.8.0_25"
setx \M JAVA_HOME "C:\Program Files\Java\jdk1.8.0_25"
But of course, change the directory to point to your installed version of java. Note that the JAVA_HOME path does not point into the bin directory, it stops one level above bin.
但是当然，将目录更改为指向您安装的 java 版本。请注意，JAVA_HOME 路径并未指向 bin 目录，它在 bin 上一级停止。
