这是正在使用的脚本...我在按钮单击时调用了 copyxml 函数...警报消息 alert("writen") 来了。但是当我打开我的 xml 文件时，xml 文件中不存在数据。我在 android 模拟器中做这一切。
function copyxml() {
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onRequestFileSystemSuccess, null);
function onRequestFileSystemSuccess(fileSystem) {
var entry = fileSystem.root;
entry.getDirectory("DigitalDirectory", { create: true, exclusive: false }, onGetDirectorySuccess, onGetDirectoryFail);
};
function onGetDirectorySuccess(dir) {
//alert("Created dir " + dir.name);
dir.getDirectory("DatabasesXML", { create: true, exclusive: false }, CreateDB, onGetDirectoryFail);
};
function CreateDB(dir) {
alert("created directory " + dir.name);
dir.getFile("users.xml", { create: true, exclusive: false }, gotFileEntry, fail);
function gotFileEntry(fileEntry) {
alert("file created");
fileEntry.createWriter(gotFileWriter, fail);
//fileEntry.file(gotFile, fail);
};
function gotFileWriter(writer) {
writer.seek(writer.length);
writer.write("Hi");
alert("writen");
writer.onerror = function(error) {
};
};
function fail(msg) {
alert("Error occured:");
};
};
function onGetDirectoryFail(error) {
alert("Error creating directory " + error.code);
};
}
//...............reading xml file
function readxml() {
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onRequestFileSystemSuccess, null);
function onRequestFileSystemSuccess(fileSystem) {
var entry = fileSystem.root;
entry.getDirectory("DigitalDirectory", { create: true, exclusive: false }, onGetDirectorySuccess, onGetDirectoryFail);
};
function onGetDirectorySuccess(dir) {
//alert("Created dir " + dir.name);
dir.getDirectory("DatabasesXML", { create: true, exclusive: false }, CreateDB, onGetDirectoryFail);
};
function CreateDB(dir) {
alert("created directory " + dir.name);
dir.getFile("users.xml", { create: true, exclusive: false }, gotFileEntry, fail);
};
function gotFileEntry(fileEntry) {
alert("Got file " + fileEntry.name);
fileEntry.file(win, fail);
function win(file) {
var reader = new FileReader();
reader.onloadend = function(evt) {
alert("read success");
var xml = evt.target.result;
alert(xml);
fileObject = xml;
ParseXmlCat(xml);
// user = xml.getElementsByTagName("users");
// for (i = 0; i < username.length; i++) {
// var username = user[i].getElementsByTagName("username").nodeValue;
// alert(username);
// }
function ParseXmlCat(xmlcat) {
alert(xmlcat);
$(xmlcat).find("user").each(function() {
var name = $(this).attr("username");
var displayName = $(this).attr("password");
alert(name);
alert(displayName);
//console.log(name);
//var litext = "<li class='licat'><a href='video.html' id='" + name + "'>" + displayName + "</a></li>";
//console.log(litext);
//$("#category").append(litext);
});
//$('ul').listview('refresh');
};
};
reader.readAsText(file)
};
};
function fail(msg) {
alert("Error occured:");
};
function onGetDirectoryFail(error) {
alert("Error creating directory " + error.code);
};
}
</script>