程序打成Jar包以后，访问路径的方法

最新推荐文章于 2023-12-18 10:05:46 发布

原创最新推荐文章于 2023-12-18 10:05:46 发布 · 2k 阅读

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CC 4.0 BY-SA版权

文章标签：

#jar #string #path #null #class

此博客展示了Java代码，定义了Path类，包含获取主路径、类路径和项目路径的方法。通过系统属性判断路径是否为空，若为空则进行相应处理，如截取字符串等操作来获取正确路径，还考虑了jar包的情况。

public class Path
{

private static String homePath;

public static String getHome()
{
    String path = System.getProperty("test.home");
    if (path != null) {
      return path;
    }
    String homePath = getProjectPath();
    System.setProperty("test.home",homePath);
    return homePath;
}

public static String getClassPath(){
    String path = System.getProperty("test_class.home");
    if (path != null) {
      return path;
    }
    String homePath = new SysConfigPath().getClass().getResource("").getFile();
    String packpath = "aygl_export/";
    int index = homePath.lastIndexOf(packpath);
    homePath = homePath.substring(0, index);
    System.setProperty("test_class.home",homePath);
    return homePath;
}

private static String getProjectPath(){
String homePath = getClassPath();
int index = homePath.lastIndexOf(".jar!/");

    if (index != -1){
      homePath = homePath.substring(0, homePath.length()-1);
      index = homePath.lastIndexOf("/");
      homePath = homePath.substring(0, index+1);
      homePath = homePath.substring(5);
    }
    homePath = homePath.substring(0, homePath.length()-1);
    index = homePath.lastIndexOf("/");
    homePath = homePath.substring(0, index+1);
    return homePath;
}

}