Android(安卓)对.properties文件的读取
16lz
2022-06-19
/** * * @param filepath .properties文件的位置 */ public void checkFileExists(String filepath){ File file = new File(filepath); if (file.exists()) { String s = PropertiesUtil.readValue(filepath, "allTime"); if (s!=null) { ShowAllTime = Integer.parseInt(s)*60*1000; } String mqtt = PropertiesUtil.readValue(filepath, "showTime"); if (mqtt!=null) { ShowTime = Integer.parseInt(mqtt)*1000; } } }
/** * 对Properties文件的操作 * * 写入 * PropertiesUtil mProp = PropertiesUtil.getInstance(this).init(); * mProp.writeString("name", "Mr Lee"); * mProp.commit(); * 读取EG * PropertiesUtil mProp = PropertiesUtil.getInstance(this).init(); * mProp.open(); * String name = mProp.readString("name", ""); * * @author lei */public class PropertiesUtil { private Context mContext; private String mPath; private String mFile; private Properties mProp; private static PropertiesUtil mPropUtil = null; public static PropertiesUtil getInstance(Context context) { if (mPropUtil == null) { mPropUtil = new PropertiesUtil(); mPropUtil.mContext = context; mPropUtil.mPath = Environment.getExternalStorageDirectory() + "/ExmKeyValue"; mPropUtil.mFile = "properties.ini"; } return mPropUtil; } public PropertiesUtil setPath(String path) { mPath = path; return this; } public PropertiesUtil setFile(String file) { mFile = file; return this; } public PropertiesUtil init() { try { File dir = new File(mPath); if (!dir.exists()) { dir.mkdirs(); } File file = new File(dir, mFile); if (!file.exists()) { file.createNewFile(); } InputStream is = new FileInputStream(file); mProp = new Properties(); mProp.load(is); is.close(); } catch (Exception e) { e.printStackTrace(); } return this; } public void commit() { try { File file = new File(mPath + "/" + mFile); OutputStream os = new FileOutputStream(file); mProp.store(os, ""); os.close(); } catch (Exception e) { e.printStackTrace(); } mProp.clear(); } public void clear() { mProp.clear(); } public void open() { mProp.clear(); try { File file = new File(mPath + "/" + mFile); InputStream is = new FileInputStream(file); mProp = new Properties(); mProp.load(is); is.close(); } catch (Exception e) { e.printStackTrace(); } } public void writeString(String name, String value) { mProp.setProperty(name, value); } public String readString(String name, String defaultValue) { return mProp.getProperty(name, defaultValue); } public void writeInt(String name, int value) { mProp.setProperty(name, "" + value); } public int readInt(String name, int defaultValue) { return Integer.parseInt(mProp.getProperty(name, "" + defaultValue)); } public void writeBoolean(String name, boolean value) { mProp.setProperty(name, "" + value); } public boolean readBoolean(String name, boolean defaultValue) { return Boolean.parseBoolean(mProp.getProperty(name, "" + defaultValue)); } public void writeDouble(String name, double value) { mProp.setProperty(name, "" + value); } public double readDouble(String name, double defaultValue) { return Double.parseDouble(mProp.getProperty(name, "" + defaultValue)); } /** * 根据key读取value * * @param filePath * @param key * @return */ public static String readValue(String filePath, String key) { Properties props = new Properties(); try { InputStream in = new BufferedInputStream(new FileInputStream( filePath)); props.load(in); String value = props.getProperty(key); if (value.equals("")) { return null; } else { return value; } } catch (Exception e) { e.printStackTrace(); return null; } }}
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