java 读取配置文件

java 读取配置文件  直接上代码

java代码

package test;

import java.io.FileInputStream;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.Properties;

public class Test {
  
   public static void main(String[] args) {
       //获取目录路径（App程序下获取方法）
       String path = new Test().getClass().getResource("/").getPath();
       //获取目录路径（Web程序下获取方法）
       //  String path = new Test().getClass().getProtectionDomain().getCodeSource() 
       //       .getLocation().getPath();
       //  if (path.indexOf("WEB-INF") > 0) { 
       //    path = path.substring(0, path.indexOf("WEB-INF") + 8); 
       //  } else { 
       //   throw new IllegalAccessException("路径获取错误"); 
       //  } 
       FileInputStream fileInputStream = null;
       Properties properties = null;
       try {
            //获取文件路径
            String filepath = MessageFormat.format("{0}{1}",
                          path, "db2-comfig.properties");
            //System.out.println(filepath);
            filepath = java.net.URLDecoder.decode(filepath, "utf-8");
            fileInputStream = new FileInputStream(filepath);
            properties = new Properties();
            properties.load(fileInputStream);
            //获取文件中的属性（db2url为文件属性）的值
            String DB2url = properties.getProperty("db2url");
            //System.out.println(DB2url);
       } catch (Exception e) {
            e.printStackTrace();
       } finally {
            //用完关闭输出流
            properties.clear();
            properties = null;
            try {
                fileInputStream.close();
            } catch (IOException e) {

                e.printStackTrace();
            }
            fileInputStream = null;
       }
   }
}

 

db2-comfig.properties 配置文件内容

 

db2url =jdbc:db2://192.168.1.1:8080/orcl