|
public createTable ( byte tableName, List |
||
| tableName | byte | |
| columnFamilies | List |
|
| Результат | void | |
static void _CreateDataBase(string baseName, string columnFamily)
{
if (string.IsNullOrWhiteSpace(baseName))
{
return;
}
if (string.IsNullOrWhiteSpace(columnFamily))
{
return;
}
var socket = null as TSocket;
var transport = null as TBufferedTransport;
try
{
// Сделаем вычисление апи хоста по базе данных
socket = new TSocket(getHost(baseName, columnFamily), Port);
transport = new TBufferedTransport(socket);
var proto = new TBinaryProtocol(transport);
var hbase = new Hbase.Client(proto);
transport.Open();
hbase.createTable(
getBaseTableHbase(baseName, columnFamily),
new List <ColumnDescriptor>()
{
new ColumnDescriptor {
Name = getAttrNameHbase(columnFamily), BlockCacheEnabled = true, MaxVersions = 1, InMemory = true
}
});
}
finally
{
if (transport != null)
{
transport.Close();
transport = null;
}
}
}
protected void 创建数据表_Click(object sender, EventArgs e)
{
TTransport transport = null;
try
{
//192.168.2.111:60010
//实例化Socket连接
transport = new TSocket("192.168.2.111", 9090);
//实例化一个协议对象
TProtocol tProtocol = new TBinaryProtocol(transport);
//实例化一个Hbase的Client对象
var client = new Hbase.Client(tProtocol);
//打开连接
transport.Open();
#region 创建表
//判断 表是不是存在
if (!client.getTableNames().Select(p => p.ToUTF8String()).Contains(txt表名.Text))
{
//数据列
var cols = new List <ColumnDescriptor>();
foreach (var item in txt列名集合.Text.Split(','))
{
//创建列
if (!string.IsNullOrEmpty(item))
{
string coln = item;
if (!coln.Contains(":"))
{
coln = item + ":";
}
var col = new ColumnDescriptor()
{
Name = coln.ToUTF8Bytes(), MaxVersions = 3
};
cols.Add(col);
}
}
//创建数据表
client.createTable(txt表名.Text.ToUTF8Bytes(), cols);
lab创建表信息状态.Text = " 创建成功..";
}
else
{
lab创建表信息状态.Text = "创建失败..表:" + txt表名.Text + "已经存在";
//return;
}
//向表里加数据
#region 向表里加数据
当前创建表示例(txt表名.Text, client);
#endregion
当前所有表(client);
#endregion
}
catch (Exception ex)
{
lab创建表信息状态.Text = "创建失败..";
lab创建表信息状态.Text += ex;
}
finally
{
if (transport != null)
{
transport.Close();
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
TTransport transport = null;
try
{
//192.168.2.111:60010
//实例化Socket连接
transport = new TSocket("192.168.2.111", 9090);
//实例化一个协议对象
TProtocol tProtocol = new TBinaryProtocol(transport);
//实例化一个Hbase的Client对象
var client = new Hbase.Client(tProtocol);
//打开连接
transport.Open();
//判断 表是不是存在
if (!client.getTableNames().Select(p => p.ToUTF8String()).Contains("abc"))
{
//创建数据表
client.createTable("abc".ToUTF8Bytes(), new List <ColumnDescriptor>()
{
new ColumnDescriptor()
{
Name = "你好中文".ToUTF8Bytes(), BloomFilterVectorSize = 30,
},
new ColumnDescriptor()
{
Name = "aa".ToUTF8Bytes(), BloomFilterVectorSize = 30,
}
});
}
//向表里加数据
#region 向表里加数据
//代码错误.不会用
//client.m("abc".ToUTF8Bytes(), new List<BatchMutation>() {
// new BatchMutation() { Mutations= new List<Mutation>() {
// new Mutation() { Column="你好中文".ToUTF8Bytes(), Value="我是,".ToUTF8Bytes() },
// new Mutation() { Column="aa".ToUTF8Bytes(), Value="我是,111".ToUTF8Bytes() },
// new Mutation() { Column="你好中文".ToUTF8Bytes(), Value="我是,Habse".ToUTF8Bytes() },
// }
// , Row = "aaaa_1".ToUTF8Bytes(),
// }
//}, new Dictionary<byte[], byte[]>());
client.mutateRow("abc".ToUTF8Bytes(), "aaaa_1".ToUTF8Bytes(), new List <Mutation>()
{
new Mutation()
{
Column = "你好中文:11".ToUTF8Bytes(), Value = "abcdef".ToUTF8Bytes()
}
}, new Dictionary <byte[], byte[]>());
#endregion
//遍历结果集
List <string> sss = new List <string>();
//获取表名:
foreach (var item in client.getTableNames())
{
var strs = System.Text.ASCIIEncoding.ASCII.GetString(item);
sss.Add("表名:" + strs);
//根据表名，RowKey名来获取结果集
List <TRowResult> reslut = client.getRow(Encoding.UTF8.GetBytes(strs), Encoding.UTF8.GetBytes("aaaa_1"), null);
foreach (var key in reslut)
{
sss.Add(string.Format(" RowKey:\n{0}", Encoding.UTF8.GetString(key.Row)));
//打印Qualifier和对应的Value
foreach (var k in key.Columns)
{
sss.Add(string.Format(" Family:Qualifier:" + "\n" + Encoding.UTF8.GetString(k.Key)));
sss.Add(string.Format(" Value:" + Encoding.UTF8.GetString(k.Value.Value)));
}
}
}
GridView1.DataSource = sss;
GridView1.DataBind();
}
catch (Exception exxx)
{
Response.Write(exxx);
}
finally
{
if (null != transport)
{
transport.Close();
}
}
}