XPCOM writeString错误 [英] XPCOM writeString error

问题描述

  //这个函数写入字符串到文件
函数WriteFile（path，string）
 {
 
 // import FileUtils.jsm 
 Components.utils.import（resource：// gre /模块/ FileUtils.jsm）; 
 //声明文件
 var file = new FileUtils.File（path）; 
 
 //声明文件路径
 file.initWithPath（path）; 
 
 //如果存在则移动如果不创建它
 if（！file.exists（））
 {
 file.create（file.NORMAL_FILE_TYPE，0666 ）; 
} 
 
 var charset ='EUC-JP'; 
 var fileStream = Components.classes ['@ mozilla.org/network/file-output-stream; 1'] 
 .createInstance（Components.interfaces.nsIFileOutputStream）; 
 fileStream.init（文件，18，0x200，false）; 
 var converterStream =组件
 .classes ['@ mozilla.org/intl/converter-output-stream;1'] 
 .createInstance（Components.interfaces.nsIConverterOutputStream）; 
 converterStream.init（fileStream，charset，string.length，
 Components.interfaces.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER）; 
 
 //将文件写入位置
 converterStream.writeString（\r\\\
+ string）; 
 converterStream.close（）; 
 fileStream.close（）; 
 
 
 
 
 
 
 
 $ b但是至于昨天我开始得到这个消息，而不管我尝试在不同的PC上使用哪个浏览器。  
 
 
  [Exception ...]组件返回失败代码：0x80460003（NS_ERROR_LOSS_OF_SIGNIFICANT_DATA）[nsIConverterOutputStream.writeString]nsresult：0x80460003 NS_ERROR_LOSS_OF_SIGNIFICANT_DATA）location：JS frame :: chrome：//imacros/content/iMacros.js :: WriteFile :: line 329data：no]（Error code：991）
  
所以我查了 mozilla开发人员这个错误是什么意思，并发现这一点。 
 
 pre $ NS $ ERROR_LOSS_OF_SIGNIFICANT_DATA 
 
 NS_ERROR_ILLEGAL_DURING_SHUTDOWN（$ 0x8046001E）
一旦应用程序正在执行许多操作关掉。在这种情况下会发生这个错误。 
  

但是我不知道这里有什么错误，因为我没有更改函数代码以任何方式。有人可以解释这个错误吗？

解决方案

我替换了这个

  var charset ='EUC-JP'; 
  

用这个

  var charset ='UTF8'; 
  

解决了我的问题。

I am using this function to write text to a file via iMacros addon in FireFox.

//This function writes string into a file
function WriteFile(path,string)
{

//import FileUtils.jsm
Components.utils.import("resource://gre/modules/FileUtils.jsm");
//declare file
var file = new FileUtils.File(path);

//declare file path
file.initWithPath(path);

//if it exists move on if not create it
if (!file.exists())
{
file.create(file.NORMAL_FILE_TYPE, 0666);
}

var charset = 'EUC-JP';
var fileStream = Components.classes['@mozilla.org/network/file-output-stream;1']
.createInstance(Components.interfaces.nsIFileOutputStream);
fileStream.init(file, 18, 0x200, false);
var converterStream = Components
.classes['@mozilla.org/intl/converter-output-stream;1']
.createInstance(Components.interfaces.nsIConverterOutputStream);
converterStream.init(fileStream, charset, string.length,
Components.interfaces.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER);

//write file to location
converterStream.writeString("\r\n"+string);
converterStream.close();
fileStream.close();


}

But as for yesterday I started getting this message, regardless of which browser I tried and on different PC.

[Exception... "Component returned failure code: 0x80460003 (NS_ERROR_LOSS_OF_SIGNIFICANT_DATA) [nsIConverterOutputStream.writeString]"  nsresult: "0x80460003 (NS_ERROR_LOSS_OF_SIGNIFICANT_DATA)"  location: "JS frame :: chrome://imacros/content/iMacros.js :: WriteFile :: line 329"  data: no] (Error code: 991)

So I checked on mozilla developers what does this error mean and found this.

NS_ERROR_LOSS_OF_SIGNIFICANT_DATA (0x80460003)
NS_ERROR_ILLEGAL_DURING_SHUTDOWN (0x8046001E)
Many operations cannot be performed once the application is being shutdown. This error will occur in this situation.

But I can't figure out what is the error here since I didn't change the function code in any way. Can someone interpret this error ?

解决方案

I replaced this

var charset = 'EUC-JP';

with this

var charset = 'UTF8';

and it solved my problems.

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