我想将android表单数据发送到特定的URL（例如login.php页面＆＃34;这是我的网站页面，它将验证来自DB保存记录的表单数据＆＃34;）
答案 0 :(得分：1)
请参阅本教程，您已完成
http://www.androidhive.info/2012/05/how-to-connect-android-with-php-mysql/
您实际上需要两个类才能执行此操作 1.你的活动 2. JSON Parser
以下是其中两个的示例代码，您可以根据自己的需要对其进行修改
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
static JSONArray jArr = null;
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET method
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "utf-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
Log.i("PHP Error", "["+json+"]");
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.getMessage() + json);
}
// return JSON String
return jObj;
}
public JSONArray getAllMessages(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "utf-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
Log.i("PHP Error", "["+json+"]");
// try parse the string to a JSON object
try {
jArr = new JSONArray(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.getMessage() + json);
}
// return JSON String
return jArr;
}
}
活动
public class Home extends Activity {
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
String message;
private static String url_addmessage = "http://www.yourdomain.com/addmessage.php";
private static final String TAG_SUCCESS = "success";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
final EditText et = (EditText)findViewById(R.id.editText1);
Button b1 = (Button)findViewById(R.id.button1);
Button b2 = (Button)findViewById(R.id.button2);
b1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
try{
message = et.getText().toString();
Log.i("message to be posted", message);
new RegisterMe().execute();
}catch(Exception e){
Log.e("Exception while getting Message", e.getMessage().toString());
}
}
});
b2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(Home.this, GetMessage.class));
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_home, menu);
return true;
}
class RegisterMe extends AsyncTask<String, String, String>{
String Message=null;
public boolean workdone(String Message){
boolean x=false;
if(Message == "Done"){
x=true;
}
return x;
}
@Override
protected void onPreExecute(){
super.onPreExecute();
pDialog = new ProgressDialog(Home.this);
pDialog.setMessage("Transaction In Progress... \n You Have The Right To Remain \n Silent & Patient :)");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("message", message));
JSONObject json = jsonParser.makeHttpRequest(url_addmessage, "GET", params);
Log.d("Create Response", json.toString());
try{
int success = json.getInt(TAG_SUCCESS);
if(success == 1){
Message = "Done";
Log.d("Work Done", "Message Added");
}
else{
Log.d("Work Done", "Message Not Added");
}
} catch(JSONException e){
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String file_url){
pDialog.dismiss();
if(new RegisterMe().workdone(Message)){
Toast.makeText(Home.this, "Message Added Successfully.",Toast.LENGTH_LONG).show();
}
else{
Toast.makeText(Home.this, "Sorry There was some error in processing your request, please try after some time.",Toast.LENGTH_LONG).show();
}
}
}
}