在此代码中，当我运行它时，它会重定向到 payu 并显示一些错误消息
public class PayMentGateWay extends ActionBarActivity {
/**
* Adding WebView as setContentView
*/
WebView webView;
/**
* Context for Activity
*/
Context activity;
/**
* Order Id
* To Request for Updating Payment Status if Payment Successfully Done
*/
int mId; //Getting from Previous Activity
/**
* Required Fields
*/
// Test Variables
/*
private String mMerchantKey = "FCyqqZ";
private String mSalt = "sfBpGA8E";
private String mBaseURL = "https://test.payu.in";
*/
// Final Variables
private String mMerchantKey = "9HwJ5t";
private String mSalt = "2JIfn3ez";
private String mBaseURL = "https://test.payu.in";
private String mAction = ""; // For Final URL
private String mTXNId; // This will create below randomly
private String mHash; // This will create below randomly
private String mProductInfo = "Recharge"; //Passing String only
private String mFirstName; // From Previous Activity
private String mEmailId; // From Previous Activity
private double mAmount; // From Previous Activity
private String mPhone; // From Previous Activity
private String mServiceProvider = "payu_paisa";
private String mSuccessUrl = "www.google.com";
private String mFailedUrl = "www.facebook.com";
boolean isFromOrder;
/**
* Handler
*/
Handler mHandler = new Handler();
/**
* @param savedInstanceState
*/
@SuppressLint({"AddJavascriptInterface", "SetJavaScriptEnabled", "JavascriptInterface"})
@Override
protected void onCreate(Bundle savedInstanceState) {
getWindow().requestFeature(Window.FEATURE_PROGRESS);
super.onCreate(savedInstanceState);
/**
* Setting WebView to Screen
*/
setContentView(R.layout.webview);
/**
* Creating WebView
*/
webView = (WebView) findViewById(R.id.webview);
/**
* Context Variable
*/
activity = getApplicationContext();
/**
* Actionbar Settings
*/
/*Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar ab = getSupportActionBar();
ab.setDisplayHomeAsUpEnabled(true);
// enabling action bar app icon and behaving it as toggle button
ab.setHomeButtonEnabled(true);
ab.setTitle(getString(R.string.paymentgateway));*/
/**
* Getting Intent Variables...
*/
Bundle bundle = getIntent().getExtras();
if (bundle != null) {
mFirstName = bundle.getString("name");
mEmailId = bundle.getString("email");
mAmount = bundle.getInt("amount");
mPhone = bundle.getString("phone");
mId = bundle.getInt("id");
isFromOrder = bundle.getBoolean("isFromOrder");
/**
* Creating Transaction Id
*/
Random rand = new Random();
String randomString = Integer.toString(rand.nextInt()) + (System.currentTimeMillis() / 1000L);
mTXNId = hashCal("SHA-256", randomString).substring(0, 20);
//mAmount = new BigDecimal(mAmount).setScale(0, RoundingMode.UP).intValue();
/**
* Creating Hash Key
*/
mHash = hashCal("SHA-512", mMerchantKey + "|" +
mTXNId + "|" +
mAmount + "|" +
mProductInfo + "|" +
mFirstName + "|" +
mEmailId + "|||||||||||" +
mSalt);
/**
* Final Action URL...
*/
mAction = mBaseURL.concat("/_payment");
/**
* WebView Client
*/
webView.setWebViewClient(new WebViewClient() {
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
super.onReceivedError(view, request, error);
Toast.makeText(activity, "Oh no! " + error, Toast.LENGTH_SHORT).show();
}
@Override
public void onReceivedSslError(WebView view,
SslErrorHandler handler, SslError error) {
Toast.makeText(activity, "SSL Error! " + error, Toast.LENGTH_SHORT).show();
handler.proceed();
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return super.shouldOverrideUrlLoading(view, url);
}
@Override
public void onPageFinished(WebView view, String url) {
if (url.equals(mSuccessUrl)) {
Intent intent = new Intent(PayMentGateWay.this, MainActivity.class);
intent.putExtra("status", true);
intent.putExtra("transaction_id", mTXNId);
intent.putExtra("id", mId);
intent.putExtra("isFromOrder", isFromOrder);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
} else if (url.equals(mFailedUrl)) {
Intent intent = new Intent(PayMentGateWay.this, MainActivity.class);
intent.putExtra("status", false);
intent.putExtra("transaction_id", mTXNId);
intent.putExtra("id", mId);
intent.putExtra("isFromOrder", isFromOrder);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
}
super.onPageFinished(view, url);
}
});
webView.setVisibility(View.VISIBLE);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setCacheMode(2);
webView.getSettings().setDomStorageEnabled(true);
webView.clearHistory();
webView.clearCache(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setSupportZoom(true);
webView.getSettings().setUseWideViewPort(false);
webView.getSettings().setLoadWithOverviewMode(false);
webView.addJavascriptInterface(new PayUJavaScriptInterface(PayMentGateWay.this), "PayUMoney");
/**
* Mapping Compulsory Key Value Pairs
*/
Map<String, String> mapParams = new HashMap<>();
mapParams.put("key", mMerchantKey);
mapParams.put("txnid", mTXNId);
mapParams.put("amount", String.valueOf(mAmount));
mapParams.put("productinfo", mProductInfo);
mapParams.put("firstname", mFirstName);
mapParams.put("email", mEmailId);
mapParams.put("phone", mPhone);
mapParams.put("surl", mSuccessUrl);
mapParams.put("furl", mFailedUrl);
mapParams.put("hash", mHash);
mapParams.put("service_provider", mServiceProvider);
String postData = "hash="+ mHash + "&key="+ mMerchantKey+"&txnid=01237&amount=10&productinfo=p111&firstname=navraj&email=navraj@navraj.net&" + "phone=9991940305&salt="+ mSalt+"&surl="+"www.facebook.com"+"&furl="+"www.google.com";
// webView.postUrl(mAction, EncodingUtils.getBytes(postData, "base64"));
// In case of using PayU PG //url = payuConfig.getEnvironment() == PayuConstants.PRODUCTION_ENV? PayuConstants.PRODUCTION_PAYMENT_URL : //PayuConstants.MOBILE_TEST_PAYMENT_URL ; //webView.postUrl(url, EncodingUtils.getBytes(payuConfig.getData(), "base64"));
webViewClientPost(webView, mAction, mapParams.entrySet());
} else {
Toast.makeText(activity, "Something went wrong, Try again.", Toast.LENGTH_LONG).show();
}
}
/**
* Posting Data on PayUMoney Site with Form
*
* @param webView
* @param url
* @param postData
*/
public void webViewClientPost(WebView webView, String url,
Collection<Map.Entry<String, String>> postData) {
StringBuilder sb = new StringBuilder();
sb.append("<html><head></head>");
sb.append("<body onload='form1.submit()'>");
sb.append(String.format("<form id='form1' action='%s' method='%s'>", url, "post"));
for (Map.Entry<String, String> item : postData) {
sb.append(String.format("<input name='%s' type='hidden' value='%s' />", item.getKey(), item.getValue()));
}
sb.append("</form></body></html>");
Log.d("TAG", "webViewClientPost called: " + sb.toString());
webView.loadData(sb.toString(), "text/html", "utf-8");
}
/**
* Hash Key Calculation
*
* @param type
* @param str
* @return
*/
public String hashCal(String type, String str) {
byte[] hashSequence = str.getBytes();
StringBuffer hexString = new StringBuffer();
try {
MessageDigest algorithm = MessageDigest.getInstance(type);
algorithm.reset();
algorithm.update(hashSequence);
byte messageDigest[] = algorithm.digest();
for (int i = 0; i < messageDigest.length; i++) {
String hex = Integer.toHexString(0xFF & messageDigest[i]);
if (hex.length() == 1)
hexString.append("0");
hexString.append(hex);
}
} catch (NoSuchAlgorithmException NSAE) {
}
return hexString.toString();
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(item.getItemId() == android.R.id.home) {
onPressingBack();
}
return super.onOptionsItemSelected(item);
}
@Override
public void onBackPressed() {
onPressingBack();
}
/**
* On Pressing Back
* Giving Alert...
*/
private void onPressingBack() {
final Intent intent;
if(isFromOrder)
intent = new Intent(PayMentGateWay.this, MainActivity.class);
else
intent = new Intent(PayMentGateWay.this, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
AlertDialog.Builder alertDialog = new AlertDialog.Builder(PayMentGateWay.this);
// Setting Dialog Title
alertDialog.setTitle("Warning");
// Setting Dialog Message
alertDialog.setMessage("Do you cancel this transaction?");
// On pressing Settings button
alertDialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
startActivity(intent);
}
});
// on pressing cancel button
alertDialog.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
// Showing Alert Message
alertDialog.show();
}
public class PayUJavaScriptInterface {
Context mContext;
/**
* Instantiate the interface and set the context
*/
PayUJavaScriptInterface(Context c) {
mContext = c;
}
public void success(long id, final String paymentId) {
mHandler.post(new Runnable() {
public void run() {
mHandler = null;
Toast.makeText(PayMentGateWay.this, "Payment Successfully.", Toast.LENGTH_SHORT).show();
}
});
}
}
}