Firefox下完整读写本地文件的方法
文章转自王牌软件
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站长推荐:NSetup一键部署软件
一键式完成美化安装包制作，自动增量升级，数据统计，数字签名。应对各种复杂场景，脚本模块化拆分，常规复杂的脚本代码，图形化设置。无需专业的研发经验，轻松完成项目部署。(www.nsetup.cn)
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//保存为本地文件 function save(path,content) { try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); } catch (e) { alert("Permission to save file was denied."); } var file = Components.classes["@mozilla.org/file/local;1"] .createInstance(Components.interfaces.nsILocalFile); file.initWithPath( path ); if ( file.exists() == false ) { //alert( "Creating file... " ); file.create( Components.interfaces.nsIFile.NORMAL_FILE_TYPE, 420 ); } var outputStream = Components.classes["@mozilla.org/network/file-output-stream;1"] .createInstance( Components.interfaces.nsIFileOutputStream ); outputStream.init( file, 0x04 | 0x08 | 0x20, 420, 0 ); var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"] .createInstance(Components.interfaces.nsIScriptableUnicodeConverter); converter.charset = 'UTF-8'; var convSource = converter.ConvertFromUnicode(content); var result = outputStream.write( convSource, convSource.length ); outputStream.close(); } //读取本地文件 function read(path) { try { netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); } catch (e) { alert("Permission to read file was denied."); } var file = Components.classes["@mozilla.org/file/local;1"] .createInstance(Components.interfaces.nsILocalFile); file.initWithPath( path ); if ( file.exists() == false ) { alert("File does not exist"); } var is = Components.classes["@mozilla.org/network/file-input-stream;1"] .createInstance( Components.interfaces.nsIFileInputStream ); is.init( file,0x01, 00004, null); var sis = Components.classes["@mozilla.org/scriptableinputstream;1"] .createInstance( Components.interfaces.nsIScriptableInputStream ); sis.init( is ); var converter = Components.classes["@mozilla.org/intl/scriptableunicodeconverter"] .createInstance(Components.interfaces.nsIScriptableUnicodeConverter); converter.charset = "UTF-8"; var output = converter.ConvertToUnicode(sis.read( sis.available() )); return output; } save("d://Yes.txt","这下ok了吧"); alert(read("d://Yes.txt")); |
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