我正在使用下面的代码，但它不起作用。
String source = "password";
byte[] byteArray = source.getBytes("UTF-16");
Base64 bs = new Base64();
//bs.encodeBytes(byteArray);
System.out.println(bs.encodeBytes(byteArray));
//bs.decode(bs.encodeBytes(byteArray));
System.out.println(bs.decode(bs.encodeBytes(byteArray)));
当前回答
加密:
byte[] encrpt= text.getBytes("UTF-8");
String base64 = Base64.encodeToString(encrpt, Base64.DEFAULT);
解密:
byte[] decrypt= Base64.decode(base64, Base64.DEFAULT);
String text = new String(decrypt, "UTF-8");
其他回答
“java.util。类提供了以Base64格式编码和解码信息的功能。
如何获得Base64编码器?
Encoder encoder = Base64.getEncoder();
如何获得Base64解码器?
Decoder decoder = Base64.getDecoder();
如何对数据进行编码?
Encoder encoder = Base64.getEncoder();
String originalData = "java";
byte[] encodedBytes = encoder.encode(originalData.getBytes());
如何解码数据?
Decoder decoder = Base64.getDecoder();
byte[] decodedBytes = decoder.decode(encodedBytes);
String decodedStr = new String(decodedBytes);
你可以在这个链接得到更多细节。
加密:
byte[] encrpt= text.getBytes("UTF-8");
String base64 = Base64.encodeToString(encrpt, Base64.DEFAULT);
解密:
byte[] decrypt= Base64.decode(base64, Base64.DEFAULT);
String text = new String(decrypt, "UTF-8");
package net.itempire.virtualapp;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Base64;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
public class BaseActivity extends AppCompatActivity {
EditText editText;
TextView textView;
TextView textView2;
TextView textView3;
TextView textView4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_base);
editText=(EditText)findViewById(R.id.edt);
textView=(TextView) findViewById(R.id.tv1);
textView2=(TextView) findViewById(R.id.tv2);
textView3=(TextView) findViewById(R.id.tv3);
textView4=(TextView) findViewById(R.id.tv4);
textView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
textView2.setText(Base64.encodeToString(editText.getText().toString().getBytes(),Base64.DEFAULT));
}
});
textView3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
textView4.setText(new String(Base64.decode(textView2.getText().toString(),Base64.DEFAULT)));
}
});
}
}
2021年在Kotlin回答。
编码:
val data: String = "Hello"
val dataByteArray: ByteArray = data.toByteArray()
val dataInBase64: String = Base64Utils.encode(dataByteArray)
解码:
val dataInBase64: String = "..."
val dataByteArray: ByteArray = Base64Utils.decode(dataInBase64)
val data: String = dataByteArray.toString()
如果您正在使用Kotlin，请像这样使用
对编码
val password = "Here Your String"
val data = password.toByteArray(charset("UTF-8"))
val base64 = Base64.encodeToString(data, Base64.DEFAULT)
为解码
val datasd = Base64.decode(base64, Base64.DEFAULT)
val text = String(datasd, charset("UTF-8"))
