Here you can find the source of writeStringToFile(File file, String data, String encoding)
| Parameter | Description |
|---|---|
| file | the file to write |
| data | the content to write to the file |
| encoding | the encoding to use, <code>null</code> means platform default |
| Parameter | Description |
|---|---|
| IOException | in case of an I/O error |
public static void writeStringToFile(File file, String data, String encoding) throws IOException
//package com.java2s; /*/*from w w w .ja v a2 s . co m*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; public class Main { /** * Writes a String to a file creating the file if it does not exist. * * NOTE: As from v1.3, the parent directories of the file will be created * if they do not exist. * * @param file the file to write * @param data the content to write to the file * @param encoding the encoding to use, <code>null</code> means platform default * @throws IOException in case of an I/O error * @throws java.io.UnsupportedEncodingException if the encoding is not supported by the VM */ public static void writeStringToFile(File file, String data, String encoding) throws IOException { if (encoding == null) { throw new IllegalArgumentException("Must specify encoding"); } OutputStream out = null; try { out = openOutputStream(file); if (data != null) { out.write(data.getBytes(encoding)); } } finally { try { if (out != null) { out.close(); } } catch (IOException ioe) { // ignore } } } /** * Opens a {@link FileOutputStream} for the specified file, checking and * creating the parent directory if it does not exist. * <p> * At the end of the method either the stream will be successfully opened, * or an exception will have been thrown. * <p> * The parent directory will be created if it does not exist. * The file will be created if it does not exist. * An exception is thrown if the file object exists but is a directory. * An exception is thrown if the file exists but cannot be written to. * An exception is thrown if the parent directory cannot be created. * * @param file the file to open for output, must not be <code>null</code> * @return a new {@link FileOutputStream} for the specified file * @throws IOException if the file object is a directory * @throws IOException if the file cannot be written to * @throws IOException if a parent directory needs creating but that fails * @since Commons IO 1.3 */ public static FileOutputStream openOutputStream(File file) throws IOException { if (file.exists()) { if (file.isDirectory()) { throw new IOException("File '" + file + "' exists but is a directory"); } if (!file.canWrite()) { throw new IOException("File '" + file + "' cannot be written to"); } } else { File parent = file.getParentFile(); if (parent != null && !parent.exists()) { if (!parent.mkdirs()) { throw new IOException("File '" + file + "' could not be created"); } } } return new FileOutputStream(file); } }