BufferedReader和BufferedOutputStream之间的灵活应用【回钦波】

package log;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;

public class ReadProperties {
 static BufferedReader br = null;
 static FileReader fr = null;
 
 public static void main(String args[]){
  
  try {
   br = new BufferedReader(new FileReader("log.properties"));  //这里最好用  ./log.properties
   
  } catch (FileNotFoundException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 

 

  Properties properties = new Properties();
  try {
   properties.load(br);
   String file_path=properties.getProperty("log_path");
   System.out.println(file_path);
   
   
  // BufferedOutputStream bo = new BufferedOutputStream(new FileOutputStream(file_path));

 

      PrintStream bo = new PrintStream(new FileOutputStream(file_path),true);   //printStream可以用println方                                                                                                                           //法来输出字符串
      bo.println("welcome come to huiqinbo.com");

  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
//  
//  return true;
 }
 

}

 

 

 

 

1. //配置文件放在了项目的根目录底下

    log.properties

 

    log_path   = .\\log1.txt

 

 

2.在项目底下的log1.txt文件中查看内容：

   welcome come to huiqinbo.com