java - 无法在java中加载属性文件

Question

我尝试加载如下属性文件，

public class A_Main {

private static FileReader reader = new FileReader("D:\\Selenium_Workspace\\SeleniumTEST\\lists.properties");

private static Properties properties = new Properties();
private static properties.load(reader);

public static String UserName = properties.getProperty("lists.user");
public static String Passwd = properties.getProperty("lists.password");
......
......
......
public static void main(String[] args) throws IOException {

    Configuration_Report conf = new Configuration_Report();
    try {
        conf.conf_report(UserName, Passwd);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
......
......
......

但是，在 Eclipse 中，它在下面的代码下标记了一个错误，

private static properties.load(reader);

我也尝试将所有内容更改为公共(public)静态，但是似乎无法加载属性文件，因为阅读器似乎无法识别。

Answer 1

正如 Elliott 上面分享的那样，您需要从静态 block 中调用加载函数。如果您从静态 block 调用它，那么您必须注意在静态 block 中初始化用户名和密码(以及任何其他依赖项)。或者另一种选择是在主函数开始时初始化它们:

静态 block :

public class A_Main {

private static Properties properties = new Properties();

public static String UserName = null;
public static String Passwd = null;

static{
     try (FileReader reader = new FileReader("D:\\Selenium_Workspace\\SeleniumTEST\\lists.properties"))
     {
         properties.load(reader);
         UserName = properties.getProperty("lists.user");
         Passwd = properties.getProperty("lists.password");
     } catch (IOException e) {
         e.printStackTrace();
     }

}
......
......
......
public static void main(String[] args) throws IOException {

    Configuration_Report conf = new Configuration_Report();
    try {
        conf.conf_report(UserName, Passwd);
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
......
......
......

内部主要功能:

public class A_Main {

private static Properties properties = new Properties();
public static String UserName = null;
public static String Passwd = null;

......
......
......
public static void main(String[] args) throws IOException {
     try (FileReader reader = new FileReader("D:\\Selenium_Workspace\\SeleniumTEST\\lists.properties"))
   {
         properties.load(reader);
         UserName = properties.getProperty("lists.user");
         Passwd = properties.getProperty("lists.password");
         Configuration_Report conf = new Configuration_Report();
         conf.conf_report(UserName, Passwd);
    } catch (IOException | InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
......
......
......