java读取,更改配置文件工具

秒速五厘米 2022-05-15 20:39 162阅读 0赞

import java.io.BufferedReader;  
import java.io.FileInputStream;  
import java.io.FileNotFoundException;  
import java.io.FileOutputStream;  
import java.io.IOException;  
import java.io.InputStream;  
import java.io.InputStreamReader;  
import java.io.OutputStream;  
import java.util.Properties;  
import java.util.ResourceBundle;

import org.apache.log4j.Logger;

public class ReadConf \{  
      private static Logger logger = Logger.getLogger(ReadConf.class);  
        
      private static Properties properties = null;  
      private static  String filepath="X:/config.properties";  
      static \{  
      try \{  
          properties = new Properties();  
          InputStream is = new FileInputStream(filepath);  
          BufferedReader bf = new BufferedReader(new  InputStreamReader(is));  
          properties.load(bf);  
       \} catch (Exception e) \{  
          logger.warn(e.getMessage());  
      \}  
      \}

//读取classpath下的配置文件  
        private static String getString1(String key)\{  
            ResourceBundle resource = ResourceBundle.getBundle("config");  
            return resource.getString(key);  
        \}

//读取任意位置的配置文件  
        public static String getString(String key)\{  
              
             return properties.getProperty(key);  
        \}  
      //更改配置文件  
        public static void setString(String key , String value) \{  
                       
             OutputStream out;  
            try \{  
                out = new FileOutputStream(filepath);  
              
             properties.put(key, value);  
             properties.store(out,  " Update '" + key + "' value");  
            \} catch (FileNotFoundException e) \{  
                      e.printStackTrace();  
            \} catch (IOException e) \{  
                      e.printStackTrace();  
            \}  
        \}