如何编译和运行此文件夹结构 [英] How to compile and run with this folder structure

问题描述

我的java源文件位于lib文件夹中的src / net / ...文件夹和.jar文件中。如何使用命令行编译和运行这些文件而不编写构建脚本？

解决方案

让我们说你的代码文件在

  [someDirectory] ​​
 | 
 +  -  [lib] 
 | | 
 | + -someLib.jar 
 | + -someOtherLib.jar 
 | + -... 
 | 
 +  -  [src] 
 | 
 +  -  [净] 
 | 
 +  -  [name] 
 | 
 +  -  [1] 
 | 
 +  -  [2] 
 | 
 +  -  [主要] 
 | 
 + -Main.java<  - 要编译
并执行
的代码 

然后如果您的控制台在

  someDirectory> 
  

你可以用

$ b <$ p $编译它p> someDirectory> javac的-cp lib\ * src\\\
et\\\
ame\one\two\main\Main.java


但这会在与相同的目录中生成 Main.class 文件Main.java 所以要从 net.name.one.two.main.Main 类执行代码，你需要包含 src 到classPath的目录，因为这个目录包含放置 Main 类的包，所以你需要使用命令

  someDirectory> java -cpsrc; lib\ *net.name.one.two.main.Main 
  

---

但最好将类文件与源文件分开。为此，您可以在编译应该具有已编译类文件的pass目录时添加 -d （目录）参数。因此，首先在与 src 目录相同的级别创建类目录并执行

'pre> someDirectory> javac的-d 类 -cp lib\ * src\\\
et\\\
ame\one\two\main\Main .java


现在能够执行 Main 类而不是通过 src 目录创建混淆，你必须添加 classes 目录，这更直观。

  someDirectory> java -cpclasses; lib\ *net.name.one.two.main.Main.java 
  

I have my java source files in src/net/... folders and .jar files in lib folder. How to compile and run this files with command line without writing build script ?

解决方案

Lets say you have your code files in

[someDirectory]
  |
  +-[lib]
  |  |
  |  +-someLib.jar
  |  +-someOtherLib.jar
  |  +-...
  |
  +--[src]
       |
       +-[net]
           |
           +-[name]
                |
                +-[one]
                   |
                   +-[two]
                       |
                       +-[main]
                           |
                           +-Main.java <- code you want to compile
                                          and execute

then if your console is in

someDirectory>

you can compile it with

someDirectory>javac -cp "lib\*" src\net\name\one\two\main\Main.java

but this will produce Main.class file in same directory as Main.java so to execute code from net.name.one.two.main.Main class you would need to include src directory to classPath because this directory contains package that Main class is placed, so you would need to use command

someDirectory>java -cp "src;lib\*" net.name.one.two.main.Main

---

But it is good practice to separate class files from source files. To do this you can add -d (directory) parameter while compiling pass directory which should have compiled class files. So first create your classes directory at the same level as src directory and execute

someDirectory>javac -d "classes" -cp "lib\*" src\net\name\one\two\main\Main.java

and now to be able to execute your Main class instead creating confusion by src directory to classPath you will have to add classes directory which is more intuitive.

someDirectory>java -cp "classes;lib\*" net.name.one.two.main.Main.java

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