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() {@Overridepublic 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trueinputServer.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(){@Overridepublic 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"><TextViewandroid:layout_height="wrap_content"android:layout_width="wrap_content"android:id="@+id/tvname"android:text="评论：" /><EditTextandroid: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>