Android 文件转base64字符串,json文件转对象
/*** 文件转base64字符串** @param file* @return*/public static String fileToBase64(File file) {String base64 = null;InputStream in = null;try {in = new FileInputStream(fil...
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/**
* 文件转base64字符串
*
* @param file
* @return
*/
public static String fileToBase64(File file) {
String base64 = null;
InputStream in = null;
try {
in = new FileInputStream(file);
byte[] bytes = new byte[in.available()];
int length = in.read(bytes);
base64 = Base64.encodeToString(bytes, 0, length, Base64.DEFAULT);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return base64;
}
方法2:
String base64Img = ""; try { byte[] buf = readFile(file); base64Img = new String(Base64.encode(buf, Base64.NO_WRAP)); } catch (Exception e) { e.printStackTrace(); }
json文件转对象
public static String readStringFromFile(String fileName) { InputStream is = null; String msg = null; try { File file = new File(fileName); if(file.exists()){ is = new FileInputStream(fileName); byte[] bytes = new byte[is.available()]; is.read(bytes); msg = new String(bytes); } } catch (IOException e) { e.printStackTrace(); } finally { try { if (is != null){ is.close(); } } catch (IOException e) { e.printStackTrace(); } } return msg; }
public static DynamicLangBean loadDownLang(Context context, String lang){ DynamicLangBean langBean = null; String filePathStr = getLangDownFileDir(context) + File.separator + getLangDownFileName(lang); String strContent = LangFileUtil.readStringFromFile(filePathStr); if (TextUtils.isEmpty(strContent)){ return langBean; } try{ langBean = new Gson().fromJson(strContent, DynamicLangBean.class); }catch (Exception e){ e.printStackTrace(); AppLog.Loge("语言包加载异常:"+e.getMessage()); } return langBean; }
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