javascript - 如何使用 javascript 或 jquery 在客户端机器上创建文本文件

Question

如何使用 javascript 或 jquery 在客户端机器上创建文本文件

Answer 1

在 IE 和 firefox 上是可能的...但想知道它如何在 Safari 和 Crome 上搜索相同的...

对于FF

netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
// Open the save file dialog
var nsIFilePicker = Components.interfaces.nsIFilePicker;
var fp = Components.classes["@mozilla.org/filepicker;1"].createInstance(nsIFilePicker);

fp.init(window, "Save File...", nsIFilePicker.modeSave);
//fp.appendFilters(nsIFilePicker.filterHTML);
fp.appendFilter("HTML File","*.htm; *.html");
fp.defaultString="data.htm";

var rv = fp.show();
if (rv == fp.returnCancel) return;

if(rv == nsIFilePicker.returnOK || rv == nsIFilePicker.returnReplace){
    // Open the file and write to it
    var file = fp.file;
    //var filePath = file.path+".htm";
    //  //file.initWithPath(filePath);

    if(file.exists() == false){//create as necessary
        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, 640, 0 );
    var result = outputStream.write( output, output.length );
    g.filename.value=file.path;
    outputStream.close();
    alert('File has been saved.' );
}

---

IE浏览器

var w = window.frames.w;
if( !w ) {
    w = document.createElement( 'iframe' );
    w.id = 'w';
    w.style.display = 'none';
    document.body.insertBefore( w );
    w = window.frames.w;
    if( !w ) {
        w = window.open( '', '_temp', 'width=100,height=100' );
        if( !w ) {
            window.alert( 'Sorry, could not create file.' );
            return false;
        }
    }
}

var d = w.document;
d.open( 'text/xml', 'replace');
d.charset = "UTF-8";

d.write(JWPFormToHTML(f));
d.close();
var name= g.filename.value;

if( d.execCommand( 'SaveAs', false , name ) )
{
    g.filename.value=name;
    //document.getElementById("filename").value="";
    alert('File has been saved.' );
}
else
{
    alert( 'The file has not been saved.\nIs there a problem?' );
}
w.close();
return false;

---

编辑

在 safari 和 chrome 上也有 你必须创建一个签名的小程序来创建读写文件并使用相同的方式访问本地数据:P