Solution to garbled code in java reading and writing html files

1、JAVA读取文件，避免中文乱码。

/**
  * 读取文件内容
  *
  * @param filePathAndName
  *            String 如 c:\\1.txt 绝对路径
  * @return boolean
  */
public static String readFile(String filePathAndName) {
  String fileContent = "";
  try { 
   File f = new File(filePathAndName);
   if(f.isFile()&&f.exists()){
    InputStreamReader read = new InputStreamReader(new FileInputStream(f),"UTF-8");
    BufferedReader reader=new BufferedReader(read);
    String line;
    while ((line = reader.readLine()) != null) {
     fileContent += line+"\n";
    }  
    read.close();
   }
  } catch (Exception e) {
   System.out.println("读取文件内容操作出错");
   e.printStackTrace();
  }
  return fileContent;
}

2、JAVA写入文件，避免中文乱码。

public static void writeFile(String filePathAndName, String fileContent) {
  try {
   File f = new File(filePathAndName);
   if (!f.exists()) {
    f.createNewFile();
   }
   OutputStreamWriter write = new OutputStreamWriter(new FileOutputStream(f),"UTF-8");
   BufferedWriter writer=new BufferedWriter(write);  
   //PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(filePathAndName)));
   //PrintWriter writer = new PrintWriter(new FileWriter(filePathAndName));
   writer.write(fileContent);
   writer.close();
  } catch (Exception e) {
   System.out.println("写文件内容操作出错");
   e.printStackTrace();
  }
}

若写入的时候用 

1、PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(filePathAndName))); 

2、PrintWriter writer = new PrintWriter(new FileWriter(filePathAndName)); 

都会出现错误，不行。 

p.s. 我刚开始用上述方法的时候还是出先乱码，后来发现是因为我的html文件的编码方式是不是utf-8,改成utf-8即可。

查看一个文件的编码方式，一个简单的办法是：用记事本打开它，然后另存为一个副本文件，在“另存为”的页面下方，“保存”按钮前面，如下图所示，会出现原文件的编码方式。

如果不是UTF-8，把它改成UTF-8，保存即可。

更多java知识请关注java基础教程栏目。

The above is the detailed content of Solution to garbled code in java reading and writing html files. For more information, please follow other related articles on the PHP Chinese website!