在String path = properties.getProperty（“ PRIVATE”）;處獲取null

Question

這是我的代碼。 我正在嘗試使用數字簽名電子令牌簽名pdf。

public static String PATH = "C:/Documents and Settings/Administrator/Desktop/New.properties";
    /** Some properties used when signing. */
    public static Properties properties = new Properties();

New.properties文件是：

PUBLIC     C:/Documents and Settings/Administrator/Desktop/public.cer
ROOTCERT    c:/examples/signatures/CACertSigningAuthority.crt
PRIVATE     c:/examples/signatures/private.p12
PASSWORD    123456

但是在代碼中，我從屬性中得到null。 代碼在這里：

    String path = properties.getProperty("PRIVATE");
    String keystore_password = properties.getProperty("PASSWORD");
    String key_password = properties.getProperty("PASSWORD");`

我得到路徑，keystore_password，key_password為空。 那里有什么錯誤？

Answer 1

您將需要按如下方式加載屬性文件：

Properties properties = new Properties();
properties.load(new FileInputStream(YOUR_PATH));

Answer 2

您必須使用以下命令加載屬性文件：

properties.load(new FileInputStream(PATH));

Answer 3

只需添加=登錄屬性文件，例如：

PUBLIC = C:/Documents and Settings/Administrator/Desktop/public.cer
ROOTCERT = C:/examples/signatures/CACertSigningAuthority.crt
PRIVATE = C:/examples/signatures/private.p12
PASSWORD = 123456