android中文乱码解决大全

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  
 * <a href='\"http://www.eoeandroid.com/home.php?mod=space&uid=7300\"' target='\"_blank\"'>@return</a>  
 * @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;   
}