无法使用cordova删除文件？

我正在这里保存文件：

/storage/emulated/0/myApp/helloworld.wav

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

我正在尝试删除此文件

        window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, successCallback, errorCallback)

        function successCallback(fs) {
            fs.root.getFile('/storage/emulated/0/myApp/helloworld.wav', {
                create: false
            }, function(fileEntry) {
                fileEntry.remove(function() {
                    alert('File removed.');
                }, errorCallback);
            }, errorCallback);
        }

        function errorCallback(error) {
            alert("ERROR: " + error.code)
        }

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

它不会删除文件，并始终返回

错误代码1

（未找到）。谁能帮我指出问题所在吗

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

---

当我从文件管理器中检查时，这就是我的文件的物理位置：

/storage/emulated/0/myApp/helloworld.wav

，但它总是返回错误代码1

也许最好使用具有本机功能的插件，它会将文件保存在应该保存的位置，并保证您具有读写访问权限

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

您可以在这里查看：

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

---

我不知道你想在什么样的设备上使用这些代码。在该页面中，您可以看到指向不同操作系统（Android、iOS、Blackberry等）的所有不同文件系统路径

我觉得下面这一行可能是问题所在，

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

window.requestFileSystem（LocalFileSystem.PERSISTENT，0，successCallback，errorCallback）

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

在我读过的一些帖子中，有人提到requestfilsystem方法和LocalFileSystem.PERSISTENT参数在android中不起作用，除非设备是根设备

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

我使用--“window.resolveLocalFileSystemURL（cordova.file.externalRootDirectory，successCallback，errorCallback）；”使它工作起来

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

如果需要，我可以共享删除目录的示例代码以及其中的文件。请让我知道。希望能有帮助

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

这是根据请求提供的示例代码

function clearDirectory() {

    if (sessionStorage.platform.toLowerCase() == "android") {
        window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemDirSuccess, fail);
    } else {
        //for ios
        window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemDirSuccess, fail);
    }
};

function onFileSystemDirSuccess(fileSystem) {
    var entry = "";
    if (sessionStorage.platform.toLowerCase() == "android") {
        entry = fileSystem;
    } else {
        //for ios
        entry = fileSystem.root;
    }
    entry.getDirectory("Folder_Name", {
            create: true,
            exclusive: false
        },
        function(entry) {
            entry.removeRecursively(function() {
                console.log("Delete successful !!!");
            }, fail);
        }, getDirFail);
};

function getDirFail(error) {
    alert("getDirFail - " + error.code);
};

function fail(error) {
    alert("fail - " + error.code);
};

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

文件创建：

function writeFile() {
            if (sessionStorage.platform.toLowerCase() == "android") {
                window.resolveLocalFileSystemURL(cordova.file.externalRootDirectory, onFileSystemSuccess, onError);
            } else {
                window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, onFileSystemSuccess, onError);
            }

        }    

        function onError(e) {
            alert("onError");
        };

        function onFileSystemSuccess(fileSystem) {
            var entry = "";
            if (sessionStorage.platform.toLowerCase() == "android") {
                entry = fileSystem;
            } else {
                entry = fileSystem.root;
            }
            entry.getDirectory("Folder_Name", {
                create: true,
                exclusive: false
            }, onGetDirectorySuccess, onGetDirectoryFail);
        };

        function onGetDirectorySuccess(dir) {
            dir.getFile(filename, {
                create: true,
                exclusive: false
            }, gotFileEntry, errorHandler);
        };

        function gotFileEntry(fileEntry) {
            // logic to write file in respective directory
        };

        function errorHandler(e) {
            // handle error
        }

---

LocalFileSystem.PERSISTENT可用于写入文件。我将尝试使用resolveLocalFileSystemURL。你可以把你的密码写在答案里great@LeonardoDaCodinchi，已在我的回复中发布代码。请让我知道这是否有助于删除目录，而不是文件。当我尝试getFile时，它抛出此错误

无法读取未定义的属性“getFile”

@LeonardoDaCodinchi，它会删除目录以及其中的文件。有趣的是，在我的例子中，我能够调用getfile函数来创建文件。在我的原始响应中添加了示例代码段。文件是否需要存储在某个特定位置，以便将来可以删除？我的文件位置是

/storage/simulated/0/myApp/helloworld.wav

我想知道为什么下一票，实际正确的答案使用了这个插件常量。。而在最初的问题中没有。。不管是谁投了反对票，我想知道为什么，我只是想帮忙，我不认为我投反对票是错的。干杯：）你的问题最终进入了低质量帖子队列，因为它有被标记为“仅链接答案”的风险。仅供参考。（不，我没有投你反对票，所以我没办法）太棒了！谢谢你的解释。下面的答案质量更好：）嗨，你能分享更新的代码片段来删除文件而不是文件目录吗？谢谢