最近在做个MP3播放器，出现中文乱码问题，在网上找了很多解决办法，我整理了出现乱码的点和解决方案，拿出来和大家共享一下

　　1.读取中文文件乱码解决方法

 

package com.apj.conv;      import java.io.BufferedInputStream;   import java.io.BufferedReader;   import java.io.File;   import java.io.FileInputStream;   import java.io.FileNotFoundException;   import java.io.IOException;   import java.io.InputStreamReader;      import android.app.Activity;   import android.os.Bundle;   import android.os.Environment;   import android.widget.TextView;      public class ConverActivity extends Activity {               private TextView textview ;                       @Override      public void onCreate(Bundle savedInstanceState) {           super.onCreate(savedInstanceState);           setContentView(R.layout.main);                       textview = (TextView) findViewById(R.id.lrctext);                                 System.out.println("===================convertCodeAndGetText begin=================== ");           ///获得SDCard中文件的路径           String path = Environment.getExternalStorageDirectory().getAbsolutePath()+ File.separator ;           String tochinese = convertCodeAndGetText(path+"a.txt");           System.out.println(tochinese);           System.out.println("===================cconvertCodeAndGetText end===================");           textview.setText(tochinese);                   }              public String convertCodeAndGetText(String str_filepath) {
   // ת��              File file = new File(str_filepath);           BufferedReader reader;           String text = "";           try {                               FileInputStream fis = new FileInputStream(file);               BufferedInputStream in = new BufferedInputStream(fis);               in.mark(4);               byte[] first3bytes = new byte[3];               in.read(first3bytes);               in.reset();               if (first3bytes[0] == (byte) 0xEF && first3bytes[1] == (byte) 0xBB                      && first3bytes[2] == (byte) 0xBF) {
   // utf-8                      reader = new BufferedReader(new InputStreamReader(in, "utf-8"));                  } else if (first3bytes[0] == (byte) 0xFF                      && first3bytes[1] == (byte) 0xFE) {                      reader = new BufferedReader(                           new InputStreamReader(in, "unicode"));               } else if (first3bytes[0] == (byte) 0xFE                      && first3bytes[1] == (byte) 0xFF) {                      reader = new BufferedReader(new InputStreamReader(in,                           "utf-16be"));               } else if (first3bytes[0] == (byte) 0xFF                      && first3bytes[1] == (byte) 0xFF) {                      reader = new BufferedReader(new InputStreamReader(in,                           "utf-16le"));               } else {                      reader = new BufferedReader(new InputStreamReader(in, "GBK"));               }               String str = reader.readLine();                  while (str != null) {                   text = text + str + "\n";                   str = reader.readLine();                  }               reader.close();              } catch (FileNotFoundException e) {               // TODO Auto-generated catch block               e.printStackTrace();           } catch (IOException e) {               e.printStackTrace();           }           return text;       }      }

2. 连接网络读取文件内容中文乱码解决办法

URL myFileUrl = null;         myFileUrl = new URL(url);      HttpURLConnection conn;      conn = (HttpURLConnection) myFileUrl.openConnection();      conn.setDoInput(true);      conn.connect();      InputStream is = conn.getInputStream();      BufferedReader br = new BufferedReader(new InputStreamReader(is,        "GB2312"));      sb = new StringBuffer();      String data = "";      while ((data = br.readLine()) != null) {              sb.append(data+"\n");         }         String result = sb.toString();

3.读取网络文件中文名下载乱码解决办法

　　1).先在设置服务器编码：找到Tomcat安装目录下的server.xml文件（Tomcat 6.0\conf\server.xml）。设置编码为UTF-8

　　<Connectorport="8080" URIEncoding="UTF-8" redirectPort="8443" connectionTimeout="20000" protocol="HTTP/1.1"/>

　　2). android 中代码为：

try {            lrcUrl = "http://192.168.0.214/vote/mp3/" + URLEncoder.encode("中文.mp3","UTF-8");           } catch (UnsupportedEncodingException e) {               // TODO Auto-generated catch block               e.printStackTrace();           }              int result1 = downFile(lrcUrl, "mp3/", "中文.mp3");   **    * 该函数返回整型( -1：代表下载文件出错 ；0：代表下载成功；1：代表文件已存在)    **/   public int downFile(String urlStr, String path, String fileName) {       InputStream inputStream = null;       try {           FileUtils fileUtils = new FileUtils();           if (fileUtils.isFileExist( fileName,path )) {               return 1;           } else {               inputStream = getInputStreamFromUrl(urlStr);               File resultFile = fileUtils.write2SDFromInput(path, fileName,                       inputStream);               if (resultFile == null) {                   return -1;               }              }       } catch (Exception e) {           // TODO: handle exception           e.printStackTrace();           return -1;       } finally {           try {               inputStream.close();           } catch (Exception e2) {               e2.printStackTrace();           }       }       return 0;   }      /**   * 根据URL得到输入流   *    * @param urlStr   * @return   * @throws MalformedURLException   * @throws IOException   */     public InputStream getInputStreamFromUrl(String urlStr)           throws MalformedURLException, IOException {       url = new URL(urlStr);       HttpURLConnection urlConn = (HttpURLConnection) url.openConnection();       InputStream inputStream = urlConn.getInputStream();       return inputStream;   }