1 import java.io.File; 2 import java.io.FileInputStream; 3 import java.io.IOException; 4 import java.io.InputStream; 5 import java.io.InputStreamReader; 6 import java.util.Properties; 7  8 public class PropertiesUtil { 9 10     private PropertiesUtil() {}11     12     /**13      * @Title: getValue14      * @Description: 根据资源目录下的文件名，键，获取对应的值15      * @param resourceFileName 资源目录下的properties文件(resource目录)16      * @param key  键名称17      * @return String  返回value值18      * @throws19      */20     public static String getResourceProValue(String resourceFileName,String key) {21         Properties properties = null;22         String value = "";23         try {24             properties = new Properties();25             InputStream in = ClassLoader.getSystemResourceAsStream(resourceFileName);26             properties.load(in);27             value = properties.getProperty(key);28         } catch (IOException e) {29             e.printStackTrace();30         }31         return value;32     }33     34     /**35      * @Title: getValue36      * @Description: 读取指定file，根据key获取value37      * @param file38      * @param key39      * @return String  返回类型40      * @throws41      */42     public static String getSystemProValue(String systemFilePath,String key) {43         Properties properties = null;44         String value = "";45         try {46             properties = new Properties();47             properties.load(new FileInputStream(new File(systemFilePath)));48             value = properties.getProperty(key);49         } catch (IOException e) {50             e.printStackTrace();51         }52         return value;53     }54     55     /**56      * @Title: getProPerties57      * @Description: 根据文件系统路径获取Properties对象58      * @param path59      * @return Properties  返回类型60      * @throws61      */62     public static Properties getSystemProPerties(String systemFilePath) {63         Properties properties = null;64         try {65             properties = new Properties();66             67             properties.load(new InputStreamReader(new FileInputStream(new File(systemFilePath)), "UTF-8"));68         } catch (IOException e) {69             e.printStackTrace();70         }71         return properties;72     }73     74     /**75      * @Title: getProPerties76      * @Description: 根据资源路径下的文件名称获取Properties对象77      * @param path78      * @return Properties  返回类型79      * @throws80      */81     public static Properties getResourceProperties(String resourceFilePath) {82         Properties properties = null;83         try {84             properties = new Properties();85             properties.load(ClassLoader.getSystemResourceAsStream(resourceFilePath));86         } catch (IOException e) {87             e.printStackTrace();88         }89         return properties;90     }91 }