Android简单加密网络数据，android加密网络,原理： 最简单的数据加密

Android简单加密网络数据，android加密网络,原理： 最简单的数据加密

原理： 最简单的数据加密就是采用Base64，虽然会带有数据冗余，但是写法简单，不用做过多的修改，其实也可以采用异或加密。 代码： 这里就直接上代码吧，写法很简单。```java public static final boolean DownlaodAppFile(Context mContext, String url, String cacheName, boolean replace) {
File root = mContext.getExternalCacheDir();
if (!root.exists()) {
root.mkdir();
}
String root_path = root.getAbsolutePath();
File cacheFile = new File(root_path + "/" + cacheName);
if (cacheFile.exists()) {
if (!replace) {
return true;
}
}
File tmpFIle = new File(root_path + "/" + cacheName + ".tmp");

        URL mURL = null;          try {              mURL = new URL(url);          } catch (MalformedURLException e) {              Log.i("Finals", "URL error");              e.printStackTrace();              return false;          }        HttpURLConnection conn = null;          FileOutputStream fos = null;          Base64OutputStream bos = null;          try {              fos = new FileOutputStream(tmpFIle);              bos = new Base64OutputStream(fos, 45);            conn = (HttpURLConnection) mURL.openConnection();              if (conn.getResponseCode() == 200) {                // 创建连接                  InputStream is = conn.getInputStream();                  byte[] buffer = new byte[1024];                // 循环获取数据                  int len = 0;                  while ((len = is.read(buffer)) != -1) {                      bos.write(buffer, 0, len);                  }                // 释放资源                  bos.close();                  fos.close();                  is.close();                  conn.disconnect();                bos = null;                  fos = null;                  is = null;                  conn = null;                  tmpFIle.renameTo(cacheFile);                  System.out.println("下载完成");              }          } catch (IOException e) {              e.printStackTrace();              Log.i("Finals", "Url connection error");              return false;          } finally {              if (fos != null) {                  try {                      fos.close();                  } catch (IOException e) {                      e.printStackTrace();                  }              }          }          return true;      }    public static final String ReadAppFile(Context context, String cacheName) {          File root = context.getExternalCacheDir();          String rootpath = root.getAbsolutePath();          File cacheFile = new File(rootpath + "/" + cacheName);          if (!cacheFile.exists()) {              return "";          }          String result = "";          try {              FileInputStream fis = new FileInputStream(cacheFile);              Base64InputStream bis = new Base64InputStream(fis, 45);              ByteArrayOutputStream bos = new ByteArrayOutputStream();              byte[] buffer = new byte[512];              int len = 0;              while ((len = bis.read(buffer)) != -1) {                  bos.write(buffer, 0, len);              }              result = bos.toString();              bos.close();              bis.close();              fis.close();              bos = null;              bis = null;              fis = null;        } catch (IOException e) {              e.printStackTrace();              return "";          }          return result;      }

```