检索字符串服务器响应code

本文介绍了检索字符串服务器响应code的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！问题描述

我试图显示基于从服务器，但不知何故没有它每次的响应消息。当我通过提供其运行正常静态值运行从不同的项目java类单独在同一code和我能够得到的回应code。请参照code，帮我纠正错误。

MainActivity.java

公共类MainActivity扩展活动实现OnClickListener，可运行{上下文语境;的EditText editTextNum，EDITTEXT，editUserName，editPassword;按钮btnsend;ProgressDialog PD;串gateway_name;线程t;微调spinner1;@覆盖公共无效的onCreate（捆绑savedInstanceState）{ super.onCreate（savedInstanceState）; this.requestWindowFeature（Window.FEATURE_NO_TITLE）; 的setContentView（R.layout.activity_main）; editUserName =（EditText上）findViewById（R.id.edit_userName）; editPassword =（EditText上）findViewById（R.id.edit_password）; editTextNum =（EditText上）findViewById（R.id.edit_number）; EDITTEXT =（EditText上）findViewById（R.id.edit_message）; spinner1 =（微调）findViewById（R.id.SpinnerGateway）; btnsend =（按钮）findViewById（R.id.btnsend）; btnsend.setOnClickListener（本）;}/ **当用户点击发送按钮调用* /公共无效的sendMessage（）{ 。字符串usrname = editUserName.getText（）的toString（）; 。字符串usrPassword = editPassword.getText（）的toString（）; 。弦数= editTextNum.getText（）的toString（）; 字符串消息= editText.getText（）的toString（）。 gateway_name =将String.valueOf（spinner1.getSelectedItem（））; 字符串msgreciever =号; 字符串的TestMessage =消息; 尝试{ SmsSender.sendMessage（msgreciever，的TestMessage，usrname， usrPassword，gateway_name）; }赶上（例外前）{ Toast.makeText（MainActivity.this，短信发送失败， Toast.LENGTH_SHORT）.show（）; }}@覆盖公共布尔onCreateOptionsMenu（菜单菜单）{ 。getMenuInflater（）膨胀（R.menu.activity_main，菜单）; 返回true;}@覆盖公共布尔onOptionsItemSelected（菜单项项）{ //处理项目选择开关（item.getItemId（））{ 案例R.id.menu_settings： settingmenuClicked（）; 返回true; 案例R.id.menu_help： showHelp（）; 返回true; 案例R.id.menu_inbox： showInbox（）; 返回true; 默认：返回super.onOptionsItemSelected（项目）; }}公共布尔isOnline（）{ ConnectivityManager厘米=（ConnectivityManager）getSystemService（Context.CONNECTIVITY_SERVICE）; NetInfo的的NetworkInfo = cm.getActiveNetworkInfo（）; 如果（NetInfo的= NULL＆放大器;！＆安培; netInfo.isConnectedOrConnecting（））{ 返回true; } 返回false;}公共布尔的isValid（）{ 如果（editUserName.getText（）。长度（）== 10 ＆功放;＆安培; editPassword.getText（）。长度（）！= 0 ＆功放;＆安培; editTextNum.getText（）。长度（）== 10 ＆功放;＆安培; editText.getText（）。长度（）！= 0）{ 返回true; } 返回false;}公共无效的onClick（视图v）{ // TODO自动生成方法存根如果（V == btnsend）{ 如果（！isOnline（））{ Toast.makeText（MainActivity.this，没有互联网Access..Cannot发送短信 Toast.LENGTH_SHORT）.show（）; }否则如果（！的isValid（））{ Toast.makeText（MainActivity.this，所有字段都是必需的。重试， Toast.LENGTH_SHORT）.show（）; }其他{ PD = ProgressDialog.show（MainActivity.this，免费短信发送SMS..Please等待.. !!，真正的）; T =新的Thread（本）; t.start（）; } }}公共无效settingmenuClicked（）{ Toast.makeText（MainActivity.this设置菜单即将推出， Toast.LENGTH_SHORT）.show（）;}公共无效showHelp（）{ Toast.makeText（MainActivity.this，帮助即将推出， Toast.LENGTH_SHORT）.show（）;}公共无效showInbox（）{ //意向意图=新意图（这一点，Inbox.class）; // startActivity（意向）;}公共无效的run（）{ // TODO自动生成方法存根发信息（）; mHandler.sendEmptyMessage（0）;}公共处理器mHandler =新的处理程序（Looper.getMainLooper（））{ @覆盖公共无效的handleMessage（消息MSG）{ // TODO自动生成方法存根 super.handleMessage（MSG）; pd.dismiss（）; 字符串的响应= SmsSender.response code; 如果（响应==1）{ Toast.makeText（MainActivity.this，消息发送成功，Toast.LENGTH_SHORT）.show（）; }否则如果（响应==-1）{ Toast.makeText（MainActivity.this服务器错误，Toast.LENGTH_SHORT）.show（）; }否则如果（响应==-2）{ Toast.makeText（MainActivity.this，无效的用户名，Toast.LENGTH_SHORT）.show（）; }否则如果（响应==-3）{ Toast.makeText（MainActivity.this，无效消息文本，Toast.LENGTH_SHORT）.show（）; }否则如果（响应==-4）{ Toast.makeText（MainActivity.this，登录失败，Toast.LENGTH_SHORT）.show（）; }否则如果（响应==-5）{ Toast.makeText（MainActivity.this，IP被封锁，Toast.LENGTH_SHORT）.show（）; }其他{ Toast.makeText（MainActivity.this，未知错误，Toast.LENGTH_SHORT）.show（）; } //Toast.makeText(MainActivity.this，消息向服务器发送 // Toast.LENGTH_SHORT）.show（）; editTextNum.setText（）; editText.setText（）; editTextNum.requestFocus（）; }};}

SmsSender.java

公共类SmsSender {静态最后弦乐_url =http://ubaid.tk/sms/sms.aspx;静态最终字符串charset =UTF-8;公共静态字符串响应code =0;//建立查询字符串，将发送消息私有静态字符串buildRequestString（字符串targetPhoneNo，消息字符串，字符串username，字符串password，字符串网关）抛出UnsupportedEncodingException { 的String [] = PARAMS新的String [5]; PARAMS [0] =用户名; PARAMS [1] =密码; PARAMS [2] =消息; PARAMS [3] = targetPhoneNo; PARAMS [4] =网关; 查询字符串=的String.format（ UID =％S＆安培; PWD =％S＆安培;味精=％S＆安培;电话=％S＆放大器;提供商=％S， URLEn coder.en code（PARAMS [0]，即charset） URLEn coder.en code（PARAMS [1]，字符集） URLEn coder.en code（PARAMS [2]，字符集） URLEn coder.en code（PARAMS [3]，字符集） URLEn coder.en code（PARAMS [4]，字符集））; 返回查询;}公共静态无效的sendMessage（字符串reciever，字符串信息，用户名字符串，字符串密码，字符串网关）抛出异常{ //要建立连接并执行POST请求 URLConnection的连接=新的URL（_url +？ + buildRequestString（reciever，信息，用户名，密码，网关））的openConnection（）; connection.setRequestProperty（接收字符集，字符集）; //这个自动闪光的要求，我们可以用它来确定 //响应状态 InputStream的响应= connection.getInputStream（）; BR的BufferedReader =新的BufferedReader（新的InputStreamReader（响应））; 的System.out.println（br.readLine（））; 响应code = br.readLine（）;}公共静态无效的主要（字串[] args）抛出异常{ // 去做 //字符串testPhoneNo =9876543210; //字符串的TestMessage =发送邮件从Java是不是太硬; //的sendMessage（testPhoneNo，的TestMessage）;} }

解决方案

我觉得你的太多副本的受害者，从的的例子的。我怀疑你得到的回应（否则你会遇到一个例外）。然后，您只是throwing它带到一个的System.out.println（）。然后，当你去设置响应code 的的readLine（）返回null。

我试图测试它为我自己，但我不能使用API印度以外。

I am trying to display the message based on the response from the server but somehow its failing everytime. When i am running the same code from java class seperately from different project by providing static values it is running properly and i am able to get the response code. Please refer the code and help me rectify the error.

MainActivity.java

public class MainActivity extends Activity implements OnClickListener, Runnable { Context context; EditText editTextNum, editText, editUserName, editPassword; Button btnsend; ProgressDialog pd; String gateway_name; Thread t; Spinner spinner1; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); editUserName = (EditText) findViewById(R.id.edit_userName); editPassword = (EditText) findViewById(R.id.edit_password); editTextNum = (EditText) findViewById(R.id.edit_number); editText = (EditText) findViewById(R.id.edit_message); spinner1 = (Spinner) findViewById(R.id.SpinnerGateway); btnsend = (Button) findViewById(R.id.btnsend); btnsend.setOnClickListener(this); } /** Called when the user clicks the Send button */ public void sendMessage() { String usrname = editUserName.getText().toString(); String usrPassword = editPassword.getText().toString(); String number = editTextNum.getText().toString(); String message = editText.getText().toString(); gateway_name = String.valueOf(spinner1.getSelectedItem()); String msgreciever = number; String testMessage = message; try { SmsSender.sendMessage(msgreciever, testMessage, usrname, usrPassword, gateway_name); } catch (Exception ex) { Toast.makeText(MainActivity.this, "SMS Sending Failed.", Toast.LENGTH_SHORT).show(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle item selection switch (item.getItemId()) { case R.id.menu_settings: settingmenuClicked(); return true; case R.id.menu_help: showHelp(); return true; case R.id.menu_inbox: showInbox(); return true; default: return super.onOptionsItemSelected(item); } } public boolean isOnline() { ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo netInfo = cm.getActiveNetworkInfo(); if (netInfo != null && netInfo.isConnectedOrConnecting()) { return true; } return false; } public boolean isValid() { if (editUserName.getText().length() == 10 && editPassword.getText().length() != 0 && editTextNum.getText().length() == 10 && editText.getText().length() != 0) { return true; } return false; } public void onClick(View v) { // TODO Auto-generated method stub if (v == btnsend) { if (!isOnline()) { Toast.makeText(MainActivity.this, "No Internet Access..Cannot Send SMS", Toast.LENGTH_SHORT).show(); } else if (!isValid()) { Toast.makeText(MainActivity.this, "All fields are required. Try Again.", Toast.LENGTH_SHORT).show(); } else { pd = ProgressDialog.show(MainActivity.this, "Free Sms", "Sending SMS..Please Wait..!!", true); t = new Thread(this); t.start(); } } } public void settingmenuClicked() { Toast.makeText(MainActivity.this, "Setting Menu Coming Soon", Toast.LENGTH_SHORT).show(); } public void showHelp() { Toast.makeText(MainActivity.this, "Help Coming Soon", Toast.LENGTH_SHORT).show(); } public void showInbox() { //Intent intent = new Intent(this, Inbox.class); //startActivity(intent); } public void run() { // TODO Auto-generated method stub sendMessage(); mHandler.sendEmptyMessage(0); } public Handler mHandler = new Handler(Looper.getMainLooper()) { @Override public void handleMessage(Message msg) { // TODO Auto-generated method stub super.handleMessage(msg); pd.dismiss(); String response = SmsSender.responsecode; if(response == "1"){ Toast.makeText(MainActivity.this, "Message Sent Successfully",Toast.LENGTH_SHORT).show(); } else if(response == "-1"){ Toast.makeText(MainActivity.this, "Server Error",Toast.LENGTH_SHORT).show(); } else if(response == "-2"){ Toast.makeText(MainActivity.this, "Invalid Username",Toast.LENGTH_SHORT).show(); } else if(response == "-3"){ Toast.makeText(MainActivity.this, "Invalid Message Text",Toast.LENGTH_SHORT).show(); } else if(response == "-4"){ Toast.makeText(MainActivity.this, "Login Failed",Toast.LENGTH_SHORT).show(); } else if(response == "-5"){ Toast.makeText(MainActivity.this, "IP is blocked",Toast.LENGTH_SHORT).show(); } else { Toast.makeText(MainActivity.this, "Unknown Error",Toast.LENGTH_SHORT).show(); } //Toast.makeText(MainActivity.this, "Message Sent To Server", // Toast.LENGTH_SHORT).show(); editTextNum.setText(""); editText.setText(""); editTextNum.requestFocus(); } }; }

SmsSender.java

public class SmsSender { static final String _url = "ubaid.tk/sms/sms.aspx"; static final String charset = "UTF-8"; public static String responsecode = "0"; // to build the query string that will send the message private static String buildRequestString(String targetPhoneNo, String message, String userName, String Password, String Gateway) throws UnsupportedEncodingException { String[] params = new String[5]; params[0] = userName; params[1] = Password; params[2] = message; params[3] = targetPhoneNo; params[4] = Gateway; String query = String.format( "uid=%s&pwd=%s&msg=%s&phone=%s&provider=%s", URLEncoder.encode(params[0], charset), URLEncoder.encode(params[1], charset), URLEncoder.encode(params[2], charset), URLEncoder.encode(params[3], charset), URLEncoder.encode(params[4], charset)); return query; } public static void sendMessage(String reciever, String message, String userName, String password, String Gateway) throws Exception { // To establish the connection and perform the post request URLConnection connection = new URL(_url + "?" + buildRequestString(reciever, message, userName, password, Gateway)).openConnection(); connection.setRequestProperty("Accept-Charset", charset); // This automatically fires the request and we can use it to determine // the response status InputStream response = connection.getInputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(response)); System.out.println(br.readLine()); responsecode = br.readLine(); } public static void main(String[] args) throws Exception { // To DO //String testPhoneNo = "9876543210"; //String testMessage = "Sending Messages From java is not too hard"; //sendMessage(testPhoneNo, testMessage); } }

解决方案

I think you are a victim of too much copy and paste from the example. I suspect you are getting a response (otherwise you would encounter an exception). You are then are just throwing it away to a System.out.println(). Then when you go to set responsecode readLine() returns null.

I tried to test it for myself, but I cannot use the API outside of India.

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