Android读取中文文件乱码解决方法

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

packagecom.apj.conv;

importjava.io.BufferedInputStream;

importjava.io.BufferedReader;

importjava.io.File;

importjava.io.FileInputStream;

importjava.io.FileNotFoundException;

importjava.io.IOException;

importjava.io.InputStreamReader;

importandroid.app.Activity;

importandroid.os.Bundle;

importandroid.os.Environment;

importandroid.widget.TextView;

publicclassConverActivityextendsActivity{

privateTextViewtextview;

@Override

publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

textview=(TextView)findViewById(R.id.lrctext);

System.out.println("==============convertCodeAndGetTextbegin==============");

///获得SDCard中文件的路径

Stringpath=Environment.getExternalStorageDirectory().getAbsolutePath()+File.separator;

Stringtochinese=convertCodeAndGetText(path+"a.txt");

System.out.println(tochinese);

System.out.println("==============cconvertCodeAndGetTextend==============");

textview.setText(tochinese);

}

publicStringconvertCodeAndGetText(Stringstr_filepath){//转变编码

Filefile=newFile(str_filepath);

BufferedReaderreader;

Stringtext="";

try{

FileInputStreamfis=newFileInputStream(file);

BufferedInputStreamin=newBufferedInputStream(fis);

in.mark(4);

byte[]first3bytes=newbyte[3];

in.read(first3bytes);

in.reset();

if(first3bytes[0]==(byte)0xEF&&first3bytes[1]==(byte)0xBB

&&first3bytes[2]==(byte)0xBF){//utf-8

reader=newBufferedReader(newInputStreamReader(in,"utf-8"));

}elseif(first3bytes[0]==(byte)0xFF

&&first3bytes[1]==(byte)0xFE){

reader=newBufferedReader(newInputStreamReader(in,"unicode"));

}elseif(first3bytes[0]==(byte)0xFE&&first3bytes[1]==(byte)0xFF){

reader=newBufferedReader(newInputStreamReader(in,"utf-16be"));

}elseif(first3bytes[0]==(byte)0xFF&&first3bytes[1]==(byte)0xFF){

reader=newBufferedReader(newInputStreamReader(in,"utf-16le"));

}else{

reader=newBufferedReader(newInputStreamReader(in,"GBK"));

}

Stringstr=reader.readLine();

while(str!=null){

text=text+str+"\n";

str=reader.readLine();

}

reader.close();

}catch(FileNotFoundExceptione){

//TODOAuto-generatedcatchblock

e.printStackTrace();

}catch(IOExceptione){

e.printStackTrace();

}

returntext;

}

}

packagecom.apj.conv;

importjava.io.BufferedInputStream;

importjava.io.BufferedReader;

importjava.io.File;

importjava.io.FileInputStream;

importjava.io.FileNotFoundException;

importjava.io.IOException;

importjava.io.InputStreamReader;

importandroid.app.Activity;

importandroid.os.Bundle;

importandroid.os.Environment;

importandroid.widget.TextView;

publicclassConverActivityextendsActivity{

privateTextViewtextview;

@Override

publicvoidonCreate(BundlesavedInstanceState){

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

textview=(TextView)findViewById(R.id.lrctext);

System.out.println("===================convertCodeAndGetTextbegin===================");

///获得SDCard中文件的路径

Stringpath=Environment.getExternalStorageDirectory().getAbsolutePath()+File.separator;

Stringtochinese=convertCodeAndGetText(path+"a.txt");

System.out.println(tochinese);

System.out.println("===================cconvertCodeAndGetTextend===================");

textview.setText(tochinese);

}

publicStringconvertCodeAndGetText(Stringstr_filepath){//ת��

Filefile=newFile(str_filepath);

BufferedReaderreader;

Stringtext="";

try{

FileInputStreamfis=newFileInputStream(file);

BufferedInputStreamin=newBufferedInputStream(fis);

in.mark(4);

byte[]first3bytes=newbyte[3];

in.read(first3bytes);

in.reset();

if(first3bytes[0]==(byte)0xEF&&first3bytes[1]==(byte)0xBB

&&first3bytes[2]==(byte)0xBF){//utf-8

reader=newBufferedReader(newInputStreamReader(in,"utf-8"));

}elseif(first3bytes[0]==(byte)0xFF

&&first3bytes[1]==(byte)0xFE){

reader=newBufferedReader(

newInputStreamReader(in,"unicode"));

}elseif(first3bytes[0]==(byte)0xFE

&&first3bytes[1]==(byte)0xFF){

reader=newBufferedReader(newInputStreamReader(in,

"utf-16be"));

}elseif(first3bytes[0]==(byte)0xFF

&&first3bytes[1]==(byte)0xFF){

reader=newBufferedReader(newInputStreamReader(in,

"utf-16le"));

}else{

reader=newBufferedReader(newInputStreamReader(in,"GBK"));

}

Stringstr=reader.readLine();

while(str!=null){

text=text+str+"\n";

str=reader.readLine();

}

reader.close();

}catch(FileNotFoundExceptione){

//TODOAuto-generatedcatchblock

e.printStackTrace();

}catch(IOExceptione){

e.printStackTrace();

}

returntext;

}

}

2.连接网络读取文件内容中文乱码解决办法

URLmyFileUrl=null;

myFileUrl=newURL(url);

HttpURLConnectionconn;

conn=(HttpURLConnection)myFileUrl.openConnection();

conn.setDoInput(true);

conn.connect();

InputStreamis=conn.getInputStream();

BufferedReaderbr=newBufferedReader(newInputStreamReader(is,"GB2312"));

sb=newStringBuffer();

Stringdata="";

while((data=br.readLine())!=null){

sb.append(data+"\n");

}

Stringresult=sb.toString();

URLmyFileUrl=null;

myFileUrl=newURL(url);

HttpURLConnectionconn;

conn=(HttpURLConnection)myFileUrl.openConnection();

conn.setDoInput(true);

conn.connect();

InputStreamis=conn.getInputStream();

BufferedReaderbr=newBufferedReader(newInputStreamReader(is,

"GB2312"));

sb=newStringBuffer();

Stringdata="";

while((data=br.readLine())!=null){

sb.append(data+"\n");

}

Stringresult=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（Tomcat6.0\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(UnsupportedEncodingExceptione){

//TODOAuto-generatedcatchblock

e.printStackTrace();

}

intresult1=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)

**/

publicintdownFile(StringurlStr,Stringpath,StringfileName){

InputStreaminputStream=null;

try{

FileUtilsfileUtils=newFileUtils();

if(fileUtils.isFileExist(fileName,path)){

return1;

}else{

inputStream=getInputStreamFromUrl(urlStr);

FileresultFile=fileUtils.write2SDFromInput(path,fileName,inputStream);

if(resultFile==null){

return-1;

}

}

}catch(Exceptione){

//TODO:handleexception

e.printStackTrace();

return-1;

}finally{

try{

inputStream.close();

}catch(Exceptione2){

e2.printStackTrace();

}

}

return0;

}

/**

*根据URL得到输入流

*

*@paramurlStr

*@return

*@throwsMalformedURLException

*@throwsIOException

*/

publicInputStreamgetInputStreamFromUrl(StringurlStr)

throwsMalformedURLException,IOException{

url=newURL(urlStr);

HttpURLConnectionurlConn=(HttpURLConnection)url.openConnection();

InputStreaminputStream=urlConn.getInputStream();

returninputStream;

}