文件读取为字符串，字符串存储为文件-优快云博客

本文介绍了如何使用Java代码将外部文件读取为字符串，并将其存储到指定路径的文件中。重点阐述了BufferedReader与FileOutputStream的使用方法，以及异常处理与资源释放。

将外部文件读取成为字符串

public String doPageToStr(String filename) {
		StringBuffer buf = new StringBuffer();
		BufferedReader breader = null;
		try {
			breader = new BufferedReader(
					new FileReader(filename));
			while (breader.ready()) {
				buf.append((char) breader.read());
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (breader != null) {
				try {
					breader.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return buf.toString();
	}

将字符串存储为文件

public void doTask(String strPage, String basePath, ProductDownload product) {
		synchronized (lock) {
			String text = strPage;
			String path = basePath;
			String filePath = path + File.separator + "product"
					+ product.getProductId() + File.separator + "product.html";
			FileOutputStream fos = null;
			try {
				fos = new FileOutputStream(filePath);
				BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(
						fos));
				bw.write(text);
				bw.flush();
			} catch (Exception e) {
				e.printStackTrace();
			} finally {
				if (fos != null) {
					try {
						fos.close();
					} catch (Exception e) {
					}
				}
			}
		}
	}