关于Button点击弹出输入框，并且通过Servlet连接数据库
应主管的要求，做了一个月的 Android，对Android也发生了许多的问题，下面是主管让我弄的一个弹出输入框，能够输入评论，保存到 数据库的功能 这是MainActivity类中的内容 // 评论按钮 comment = (Button) findViewById(R.id.comment); comment.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // LayoutInflater inflater = getLayoutInflater(); // final View layout = inflater.inflate(R.layout.comment,(ViewGroup) findViewById(R.id.dialog)); // 获取文本 final EditText inputServer = new EditText(MainActivity.this); // 设置获取文本内容为true inputServer.setFocusable(true); if(MainActivity.CityName == null){ inputServer.setText("你还未搜索当前城市，请定位后再评论"); } AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle("评价框").setView(inputServer); builder.setNegativeButton("取消", null); builder.setPositiveButton("确定", new DialogInterface.OnClickListener(){ @Override public void onClick(DialogInterface arg0, int arg1) { String text = inputServer.getText().toString(); if(MainActivity.CityName == null){ HttpGet httpGet = new HttpGet("http://192.168.11.135:8081/MySql/pinlunServlet?cityName=null&comment=" + text); try { HttpResponse response = new DefaultHttpClient().execute(httpGet); if(response.getStatusLine().getStatusCode() < 2000){ Log.i("add", "评论成功"); }else{ Log.e("Err", "评论失败"); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }else{ HttpGet httpGet = new HttpGet("http://192.168.11.135:8081/MySql/pinlunServlet?cityName=" + MainActivity.CityName + "&comment=" + text); try { HttpResponse response = new DefaultHttpClient().execute(httpGet); if(response.getStatusLine().getStatusCode() < 2000){ Log.i("add", "评论成功"); }else{ Log.e("Err", "评论失败"); } } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } Log.i("add",text); }}); builder.show(); } }); 这是comment.xml中的配置 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="wrap_content" android:layout_width="wrap_content" android:background="#ffffffff" android:orientation="horizontal" android:id="@+id/dialog"> <TextView android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/tvname" android:text="评论：" /> <EditText android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/etname" android:minWidth="100dip"/> </LinearLayout> AndroidManifest.xml中权限(仅供参考，如有缺少可以添加) <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.baudumap" android:versionCode="1" android:versionName="1.0" > <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission> <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="18" > </uses-sdk> <instrumentation android:name="android.test.InstrumentationTestRunner" android:targetPackage="com.example.baudumap" > </instrumentation> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" > </uses-permission> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" > </uses-permission> <uses-permission android:name="android.permission.INTERNET" > </uses-permission> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" > </uses-permission> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" > </uses-permission> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" > </uses-permission> <uses-permission android:name="android.permission.READ_PHONE_STATE" > </uses-permission> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" > </uses-permission> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" > </uses-permission> <uses-permission android:name="android.permission.READ_LOGS" > </uses-permission> <application android:allowBackup="true" android:icon="@drawable/wing" android:label="@string/app_name" android:theme="@style/AppTheme" > <uses-library android:name="android.test.runner" /> <activity android:name="com.example.baudumap.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote" > </service> </application> </manifest> 最新内容请见作者的GitHub页：http://qaseven.github.io/
