关于Button点击弹出输入框，并且通过Servlet连接数据库

最新推荐文章于 2023-06-20 14:54:54 发布

转载最新推荐文章于 2023-06-20 14:54:54 发布 · 496 阅读

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CC 4.0 BY-SA版权

原文链接：https://yq.aliyun.com/articles/134720

文章标签：

#数据库 #java #移动开发

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>

</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/