hzuapps#92 hzuapps#297

Net1314080903115_MySQLiteOpenHelper ——————继承SQLiteOpenHelper类，编写创建数据库流程。
Net1314080903115_Constant————————————在这个类里，定义了一些常量，包括数据库名称、表名称和表的列名
Net1314080903115_Account————————————这个类用于保存Account表的一条记录。

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903115/db/Net1314080903115_Account.java

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+package edu.hzuapps.androidworks.homeworks.net1314080903115.db;
+
+/**
+ * Created by lzf on 2016/6/14.
+ */
+public class Net1314080903115_Account {
+
+    public int State=0;//0数据库里没数据，1有数据，还没通过网络验证,2通过网络验证
+    public int ID;
+    public String Phone;
+    public String PassWord;
+    public String UserName;
+    public String HeadPortrait;
+    public String NoteTable;
+}

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903115/db/Net1314080903115_Constant.java

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+package edu.hzuapps.androidworks.homeworks.net1314080903115.db;
+
+public class Net1314080903115_Constant {
+	// 数据库名称
+	public static final String DATABASE_NAME = "CloudNotes.db";
+
+	// 数据库中各表名
+	public static final String TABLE_Account = "Account";
+
+	// Account表
+	public static final String Account_ID = "ID";
+	public static final String Account_Phone = "Phone";
+	public static final String Account_PassWord = "PassWord";
+	public static final String Account_UserName = "UserName";
+	public static final String Account_HeadPortrait = "HeadPortrait";
+	public static final String Account_NoteTable = "NoteTable";
+
+	// 笔记表
+	public static final String NoteTable_ID = "ID";
+	public static final String NoteTable_Title = "Title";
+	public static final String NoteTable_Text = "Text";
+	public static final String NoteTable_Edition = "Edition";
+	public static final String NoteTable_Date = "Date";
+}

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903115/db/Net1314080903115_MySQLiteOpenHelper.java

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+package edu.hzuapps.androidworks.homeworks.net1314080903115.db;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+public class Net1314080903115_MySQLiteOpenHelper extends SQLiteOpenHelper {
+	/*
+	 * 创建数据库
+	 */
+	public Net1314080903115_MySQLiteOpenHelper(Context context) {
+		super(context, Net1314080903115_Constant.DATABASE_NAME, null, 1);
+	}
+
+	// 初始化表
+	@Override
+	public void onCreate(SQLiteDatabase db) {
+		// 创建用户表
+		db.execSQL("create table " + Net1314080903115_Constant.TABLE_Account + "("
+				+ Net1314080903115_Constant.Account_ID + " integer primary key not null,"
+				+ Net1314080903115_Constant.Account_Phone+ " text not null,"
+				+ Net1314080903115_Constant.Account_PassWord+ " text not null,"
+				+ Net1314080903115_Constant.Account_UserName + " text not null,"
+				+ Net1314080903115_Constant.Account_HeadPortrait + " text, "
+				+ Net1314080903115_Constant.Account_NoteTable + " text not null);");
+	}
+
+	@Override
+	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+
+	}
+
+}