java io输出的编码问题
今天在做应用错误日志输出时,使用以下的写法,输出中文时乱码
[java]
File file = new File(ERRORLOG_PATH_SDCARD_DIR, needWriteFiel
+ ERRORLOG_FILEName);
try {
if(!file.exists()){
file.createNewFile();
}
FileWriter filerWriter = new FileWriter(file, true); // 追加
BufferedWriter bufWriter = new BufferedWriter(filerWriter);
bufWriter.write(errorMsg.toString());
bufWriter.newLine();
bufWriter.close();
filerWriter.close();
} catch (IOException e) {
Log.d(TAG, "记录本地日志异常",e);
}
后面查了些资料,可以使用OutputStreamWriter filerWriter = new OutputStreamWriter(new FileOutputStream(file,true),"GBK"); 来解决乱码问题
[java]
File file = new File(ERRORLOG_PATH_SDCARD_DIR, needWriteFiel
+ ERRORLOG_FILEName);
try {
if(!file.exists()){
file.createNewFile();
}
//设置输出编码,解决中文乱码
OutputStreamWriter filerWriter = new OutputStreamWriter(new FileOutputStream(file,true),"GBK");
//FileWriter filerWriter = new FileWriter(file, true); // 追加
BufferedWriter bufWriter = new BufferedWriter(filerWriter);
bufWriter.write(errorMsg.toString());
bufWriter.newLine();
bufWriter.close();
filerWriter.close();
} catch (IOException e) {
Log.d(TAG, "记录本地日志异常",e);
}
解释:
* 本文件名为FileWriterSubstituteSample,实际上是在寻找FileWriter的替代者。
* 因为FileWriter在写文件的时候,其编码方式似乎是System.encoding或者System.file.encoding,
* 在中文win下encoding基本是gb2312,在en的win下基本是iso-8859-1,总之不是utf-8。
* 所以要创建一个utf-8的文件,用FileWriter是不行的。
* 目前不知道如何更改其用来写文件的编码方式,因此对于创建utf-8文件使用如下方式来代替。
[java]
public class FileWriterSubstituteSample ...{
public static void main(String[] args)...{
String path="cn/yethyeth/sample/resources/XML_UTF-8.xml";
try ...{
OutputStreamWriter out = new OutputStreamWriter(
new FileOutputStream(path),"UTF-8");
out.write("<?xml version="1.0" encoding="utf-8"?><a>这是测试。</a>");
out.flush();
out.close();
System.out.println("success...");
} catch (UnsupportedEncodingException e) ...{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) ...{
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) ...{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
补充:软件开发 , Java ,