读取raw下的文件

最新推荐文章于 2025-06-10 16:19:08 发布

原创最新推荐文章于 2025-06-10 16:19:08 发布 · 1.2k 阅读

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#string #buffer #byte #exception

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本文介绍了两种从Android应用中读取原始资源文件的方法。方法一使用InputStream直接读取整个文件内容；方法二采用循环方式逐段读取并解析文件内容为键值对，存储在Map中。

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方法一(private Map<String, String> headlineValue)

	public String getFromRaw() {
		String result = "";
		try {
			InputStream in = context.getResources().openRawResource(R.raw.cc);
			int lenght = in.available();
			byte[] buffer = new byte[lenght];
			in.read(buffer);
			result = EncodingUtils.getString(buffer, "Encoding.UTF_8");
		} catch (Exception e) {
			e.printStackTrace();
		}
		return result;
	}

方法二

public String read() {
		InputStream in = context.getResources().openRawResource(R.raw.cc);

		ByteArrayOutputStream outStream = new ByteArrayOutputStream();
		byte[] buffer = new byte[1024];
		int len = 0;
		try {
			while ((len = in.read(buffer)) != -1) {
				outStream.write(buffer, 0, len);

				// Log
				String log = new String(outStream.toByteArray());
				String[] row = log.split("\r\n");

				for (String element : row) {
					String[] str = element.split("=");
					for (int i = 0; i < str.length; i++) {
						if (i + 1 < str.length) {
							Log.i("TestRead", str[i]);
							headlineValue.put(str[i].trim(), str[i + 1].trim());
						}
					}

				}

				Log.i("TestRead", log);
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		byte[] data = outStream.toByteArray();
		return new String(data);
	}