java Properties转map

红太狼 2021-09-26 09:48 785阅读 0赞

按key读取properties数据

//按key读取properties数据
    properties.getProperty(key)

properties数据转map

import java.util.Properties;
    import java.util.Map;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.io.InputStream;
    import java.util.HashMap;
    /** * * @author gyn * */
    @SuppressWarnings("all")
    public class PropertiesUtil { 
        private final static String PATH=System.getProperty("user.dir");
        public  static final Map<String, String> PARAMETERS_MAP=PropertiesUtil.getMap("\\src\\main\\resources\\parameters.properties");
    
        static{
            Map<String, String> map = PARAMETERS_MAP;
            for (Map.Entry<String, String> entry : map.entrySet()) {
    
                System.out.printf("%s = %s%n", entry.getKey(), entry.getValue());
    
            }
        }
        public static void main(String[] args) {
    
    
        }
    
        public static Map<String, String> getMap(String path) {
            Properties properties = new Properties();
            properties = readFile(PATH+path);
            Map<String, String> map = new HashMap<String, String>((Map) properties);
            return map;
        }
    
        public static Properties readFile(String path) {
            File file = new File(path);
            Properties properties = new Properties();
            InputStream in = null;
            try {
                in = new FileInputStream(file);
                properties.load(in);
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
            return properties;
        }
    
    }