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增加ormlite对本地数据库sqlite的增删改查示例demo（使用事务）

This commit is contained in:
zengfantian 2015-01-20 14:44:04 +08:00
parent 1410505cae
commit 159070898f
8 changed files with 682 additions and 0 deletions
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29
res/drawable/app_list_corner_round.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<!-- 渐变 -->
<gradient
android:startColor="#B5E7B8"
android:endColor="#76D37B"
android:angle="270"
/>
<!-- 描边 -->
<!-- <stroke android:width="1dip"
android:color="@color/blue"
/> -->
<!-- 实心 -->
<!-- <solid android:color="#FFeaeaea"
/> -->
<!-- 圆角 -->
<corners
android:bottomRightRadius="4dip"
android:bottomLeftRadius="4dip"
android:topLeftRadius="4dip"
android:topRightRadius="4dip"
/>
</shape>

23
res/drawable/app_list_corner_round_bottom.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<gradient
android:startColor="#B5E7B8"
android:endColor="#76D37B"
android:angle="270"
/>
<!-- <stroke android:width="1dip"
android:color="@color/blue"
/> -->
<!-- <solid android:color="#FFeaeaea"
/> -->
<corners
android:bottomRightRadius="4dip"
android:bottomLeftRadius="4dip"
/>
</shape>

23
res/drawable/app_list_corner_round_center.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<gradient
android:startColor="#B5E7B8"
android:endColor="#76D37B"
android:angle="270"
/>
<!-- <stroke android:width="1dip"
android:color="@color/blue"
/> -->
<!-- <solid android:color="#FFeaeaea"
/> -->
<!-- <corners
android:bottomRightRadius="4dip"
android:bottomLeftRadius="4dip"
/> -->
</shape>

23
res/drawable/app_list_corner_round_top.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<gradient
android:startColor="#B5E7B8"
android:endColor="#76D37B"
android:angle="270"
/>
<!-- <stroke android:width="1dip"
android:color="@color/blue"
/> -->
<!-- <solid android:color="#FFeaeaea"
/> -->
<corners
android:topLeftRadius="4dip"
android:topRightRadius="4dip"
/>
</shape>

126
res/layout/activity_db_demo.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/aliceblue"
android:orientation="vertical" >
<!-- 添加输入框 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:id="@+id/et_username"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:hint="用户名" />
<EditText
android:id="@+id/et_email"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.5"
android:hint="电子邮箱" />
<Button
android:id="@+id/btn_add"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:text="添加" />
</LinearLayout>
<!-- 带分页导航条的信息列表 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp"
android:background="@drawable/app_list_corner_round"
android:orientation="vertical" >
<ListView
android:id="@+id/lv_userlist"
android:layout_width="match_parent"
android:layout_height="200dp"
android:cacheColorHint="@android:color/transparent"
android:divider="@color/black"
android:dividerHeight="1.5dp"
android:focusable="true"
android:footerDividersEnabled="true"
android:headerDividersEnabled="true"
android:scrollbars="none" >
</ListView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="5dp"
android:layout_marginTop="5dp"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_first_page"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:text="首页" />
<Button
android:id="@+id/btn_per_page"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:text="上一页" />
<Button
android:id="@+id/btn_next_page"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:text="下一页" />
<Button
android:id="@+id/btn_end_page"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:text="末页" />
</LinearLayout>
</LinearLayout>
<!-- 修改编辑框 -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:id="@+id/et_u_username"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:hint="用户名" />
<EditText
android:id="@+id/et_u_email"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.5"
android:hint="电子邮箱" />
<Button
android:id="@+id/btn_update"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:text="保存" />
</LinearLayout>
</LinearLayout>

46
res/layout/activity_db_demo_listview_item.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<TextView
android:id="@+id/tv_order_no"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="0.5"
android:gravity="center"
android:text="1"
android:textColor="@color/black" />
<TextView
android:id="@+id/tv_username"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:gravity="center"
android:text="Ajava"
android:textColor="@color/black" />
<TextView
android:id="@+id/tv_email"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_weight="1.5"
android:gravity="center"
android:text="zftlive@163.com"
android:textColor="@color/black" />
<Button
android:id="@+id/btn_update"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="修改" />
<Button
android:id="@+id/btn_del"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="删除" />
</LinearLayout>

350
src/com/zftlive/android/sample/db/DBDemoActivity.java Normal file
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package com.zftlive.android.sample.db;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.content.DialogInterface;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import com.j256.ormlite.android.AndroidDatabaseConnection;
import com.j256.ormlite.dao.Dao;
import com.j256.ormlite.stmt.QueryBuilder;
import com.zftlive.android.R;
import com.zftlive.android.base.BaseActivity;
import com.zftlive.android.base.BaseAdapter;
import com.zftlive.android.sample.db.entity.User;
import com.zftlive.android.tools.ToolAlert;
import com.zftlive.android.tools.ToolDatabase;
import com.zftlive.android.tools.ToolString;
/**
* 数据库操作示例
*
* @author 曾繁添
* @version 1.0
*
*/
public class DBDemoActivity extends BaseActivity {
private EditText et_username, et_email, et_u_username, et_u_email;
private Button btn_add, btn_update, btn_first_page, btn_per_page,btn_next_page, btn_end_page;
private ListView lv_userlist;
private UserListAdapter mUserListAdapter;
private ToolDatabase dbHelper;
private Dao<User, String> userDao;
public static final String DB_NAME = "zftlive";
public static final int DB_VERSION = 1;
private User selectItem = null;
@Override
public int bindLayout() {
return R.layout.activity_db_demo;
}
@Override
public void initView(View view) {
et_username = (EditText) findViewById(R.id.et_username);
et_email = (EditText) findViewById(R.id.et_email);
et_u_username = (EditText) findViewById(R.id.et_u_username);
et_u_email = (EditText) findViewById(R.id.et_u_email);
btn_add = (Button) findViewById(R.id.btn_add);
btn_update = (Button) findViewById(R.id.btn_update);
btn_first_page = (Button) findViewById(R.id.btn_first_page);
btn_per_page = (Button) findViewById(R.id.btn_per_page);
btn_next_page = (Button) findViewById(R.id.btn_next_page);
btn_end_page = (Button) findViewById(R.id.btn_end_page);
lv_userlist = (ListView) findViewById(R.id.lv_userlist);
}
@Override
public void doBusiness(Context mContext) {
//设置列表适配器
mUserListAdapter = new UserListAdapter();
lv_userlist.setAdapter(mUserListAdapter);
lv_userlist.setOnItemClickListener(mUserListItemClickListener);
//实例化dbHelper
dbHelper = ToolDatabase.gainInstance(DB_NAME, DB_VERSION);
dbHelper.createTable(User.class);
try {
userDao = (Dao<User, String>)dbHelper.getDao(User.class);
} catch (SQLException e) {
e.printStackTrace();
}
//设置添加数据按钮监听器
btn_add.setOnClickListener(mAddUserClickListener);
//设置修改按钮点击监听器
btn_update.setOnClickListener(mUpdateUserClickListener);
//查询用户
queryUserList();
}
@Override
public void resume() {
}
@Override
public void destroy() {
if(null != dbHelper) dbHelper.releaseAll();
}
/**
* 查询用户
*/
private void queryUserList(){
try {
//先清除数据
mUserListAdapter.clear();
List<User> userList = userDao.queryForAll();
for (int i = 0; i < userList.size(); i++) {
User user = userList.get(i);
user.setOrderNo(String.valueOf(i+1));
mUserListAdapter.addItem(user);
}
//通知数据改变
mUserListAdapter.notifyDataSetChanged();
} catch (SQLException e) {
e.printStackTrace();
Log.e(TAG, "查询用户列表失败，原因："+e.getMessage());
}
}
/**
* 请求翻页
* @param pageNo 页码
* @return 指定页数据集合
*/
public List<User> requestPage(int pageNo){
List<User> result = new ArrayList<User>();
QueryBuilder<User, String> qb;
try {
qb = userDao.queryBuilder();
//qb.where().eq("parentId", "1111");
//qb.prepare();
// qb.limit(maxRows);
// qb.offset(startRow);
List<User> subItems = qb.query();
} catch (SQLException e) {
e.printStackTrace();
}
return result;
}
/**
* 添加用户按钮点击事件监听器
*/
public View.OnClickListener mAddUserClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
AndroidDatabaseConnection conn = null;
try {
String username = et_username.getText().toString();
String email = et_email.getText().toString();
if(!ToolString.isNoBlankAndNoNull(username) || !ToolString.isNoBlankAndNoNull(email)){
ToolAlert.showShort(getContext(), "请输入用户名和邮箱");
return ;
}
//获取数据库连接
conn = new AndroidDatabaseConnection(dbHelper.getWritableDatabase(), true);
conn.setAutoCommit(false);
//组装实体
User user = new User();
user.setId(ToolString.gainUUID());
user.setUsername(username);
user.setEmail(email);
userDao.create(user);
//提交事务
conn.commit(null);
ToolAlert.showShort(getContext(), "添加成功");
//刷新列表
queryUserList();
//清空添加框
et_username.setText("");
et_email.setText("");
} catch (Exception e) {
e.printStackTrace();
try {
if (null != conn)
conn.rollback(null);
conn.close();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
}
};
/**
* 修改用户按钮点击事件监听器
*/
public View.OnClickListener mUpdateUserClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
AndroidDatabaseConnection conn = null;
try {
String username = et_u_username.getText().toString();
String email = et_u_email.getText().toString();
if(!ToolString.isNoBlankAndNoNull(username) || !ToolString.isNoBlankAndNoNull(email)){
ToolAlert.showShort(getContext(), "请输入更新用户名和邮箱");
return ;
}
if(null != selectItem){
//获取数据库连接
conn = new AndroidDatabaseConnection(dbHelper.getWritableDatabase(), true);
conn.setAutoCommit(false);
//组装实体
selectItem.setUsername(username);
selectItem.setEmail(email);
userDao.update(selectItem);
//提交事务
conn.commit(null);
ToolAlert.showShort(getContext(), "修改成功");
//刷新列表
queryUserList();
}else{
ToolAlert.showShort(getContext(), "没有选择用户");
}
} catch (Exception e) {
e.printStackTrace();
try {
if (null != conn)
conn.rollback(null);
conn.close();
} catch (SQLException e1) {
e1.printStackTrace();
}
}
}
};
/**
* 用户列表点击事件监听器
*
*/
private AdapterView.OnItemClickListener mUserListItemClickListener = new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
//获取点击的Item
User item = (User)mUserListAdapter.getItem(position);
et_u_username.setText(item.getUsername());
et_u_email.setText(item.getEmail());
}
};
/**
* 用户列表适配器
*
*/
public class UserListAdapter extends BaseAdapter {
@Override
public View getView(final int position, View convertView,
ViewGroup parent) {
Holder holder = null;
// 查找控件
if (null == convertView) {
convertView = LayoutInflater.from(getContext()).inflate(R.layout.activity_db_demo_listview_item, null);
holder = new Holder();
holder.tv_order_no = (TextView) convertView.findViewById(R.id.tv_order_no);
holder.tv_username = (TextView) convertView.findViewById(R.id.tv_username);
holder.tv_email = (TextView) convertView.findViewById(R.id.tv_email);
holder.btn_update = (Button) convertView.findViewById(R.id.btn_update);
holder.btn_del = (Button) convertView.findViewById(R.id.btn_del);
// 缓存Holder
convertView.setTag(holder);
} else {
holder = (Holder) convertView.getTag();
}
// 设置数据
final User rowData = (User) getItem(position);
holder.tv_order_no.setText(rowData.getOrderNo());
holder.tv_username.setText(rowData.getUsername());
holder.tv_email.setText(rowData.getEmail());
holder.btn_update.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
selectItem = rowData;
et_u_username.setText(rowData.getUsername());
et_u_email.setText(rowData.getEmail());
}
});
holder.btn_del.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ToolAlert.dialog(getContext(), "删除确认", "确定要删除吗?",
new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which) {
mUserListAdapter.removeItem(position);
mUserListAdapter.notifyDataSetChanged();
try {
userDao.delete(rowData);
ToolAlert.showShort(getContext(), "删除成功");
} catch (SQLException e) {
e.printStackTrace();
ToolAlert.showShort(getContext(), "删除失败，原因："+e.getMessage());
}
}
},
new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
}
);
}
});
return convertView;
}
public class Holder {
TextView tv_order_no;
TextView tv_username;
TextView tv_email;
Button btn_update;
Button btn_del;
}
}
}

62
src/com/zftlive/android/sample/db/entity/User.java Normal file
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package com.zftlive.android.sample.db.entity;
import com.j256.ormlite.field.DatabaseField;
import com.j256.ormlite.table.DatabaseTable;
import com.zftlive.android.base.BaseEntity;
/**
* 首页[菜单]数据
*
* @author 曾繁添
*/
@DatabaseTable(tableName = "User")
public class User extends BaseEntity {
/**
*
*/
private static final long serialVersionUID = -1270221627651225756L;
/**
* 序号
*/
@DatabaseField
private String orderNo;
/**
* 用户名
*/
@DatabaseField
private String username;
/**
* 电子邮箱
*/
@DatabaseField
private String email;
public String getOrderNo() {
return orderNo;
}
public void setOrderNo(String orderNo) {
this.orderNo = orderNo;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}