wex5 file文件存储

在js中需要引入file的cordova包

require("cordova!cordova-plugin-file");

如果要存到手机的根目录下，在Native文件夹的对应项目中的config.xml配置文件里添加

<preference name="AndroidPersistentFileLocation" value="Compatibility"/>

参考文档：http://docs.wex5.com/cordova-plugin-file/

创建文件：

window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function (fs) {

console.log('file system open: ' + fs.name);

fs.root.getFile("newPersistentFile.txt", { create: true, exclusive: false }, function (fileEntry) {

console.log("fileEntry is file?" + fileEntry.isFile.toString());

// fileEntry.name == 'someFile.txt'

// fileEntry.fullPath == '/someFile.txt'

writeFile(fileEntry, null);

}, onErrorCreateFile);

}, onErrorLoadFs);

写入文件

function writeFile(fileEntry, dataObj) {

// Create a FileWriter object for our FileEntry (log.txt).

fileEntry.createWriter(function (fileWriter) {

fileWriter.onwriteend = function() {

console.log("Successful file read...");

readFile(fileEntry);

};

fileWriter.onerror = function (e) {

console.log("Failed file read: " + e.toString());

};

// If data object is not passed in,

// create a new Blob instead.

if (!dataObj) {

dataObj = new Blob(['some file data'], { type: 'text/plain' });

}

fileWriter.write(dataObj);

});

}

读取文件

function readFile(fileEntry) {

fileEntry.file(function (file) {

var reader = new FileReader();

reader.onloadend = function() {

console.log("Successful file read: " + this.result);

displayFileData(fileEntry.fullPath + ": " + this.result);

};

reader.readAsText(file);

}, onErrorReadFile);

}