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;
}