Android类型转换 积累

String-->InputStream

String str = "abc";

InputStream inputStream = new ByteArrayInputStream(str.getBytes());

InputStream-->String

String inputStream2String(InputStream is) {

    BufferedReader in = new BufferedReader(new InputStreamReader(is));

    StringBuffer buffer = new StringBuffer();

    String line = "";

    try {

        while ((line = in.readLine()) != null) {

            buffer.append(line);

        }

    } catch (IOException e) {

        e.printStackTrace();

    }

    return buffer.toString();

}

base64-->String

String result = "abc";

byte[] encodeRes = Base64.decode(result, Base64.DEFAULT);

String res = new String(encodeRes);

String-->base64

 

Base64.encodeToString(str.getBytes(), Base64.DEFAULT);

 

char[]-->jstring

jstring jstr;

char str[]="Hello World/n";

jstr=env->NewStringUTF(str);

return jstr;