Hbase java客户端操作

1，创建表

2，put操作

public class myHbase {

private static Configuration conf= null;
static {
conf=HBaseConfiguration.create();
}
/**
* column familys add column <--->hbase columnName
* @param tableName
* @param familys
* @throws Exception
*/
public void createTable(String tableName,String[] familys) throws Exception{
HBaseAdmin admin = new HBaseAdmin(conf);
if(!admin.tableExists(tableName)){
HTableDescriptor desc = new HTableDescriptor(tableName);
for (int i = 0; i < familys.length; i++) {
desc.addFamily(new HColumnDescriptor(familys[i]));
}
admin.createTable(desc);
}else{
System.out.println("the table:"+ tableName +" exsists");
};
}
/**
* @param tableName
* @param rowKey
* @param family
* @param qualifier
* @param value
* @throws Exception
*/
public void putData(String tableName,String rowKey, String family,
String qualifier, String value) throws Exception {
HTable ht = new HTable(conf, tableName);
Put put = new Put(Bytes.toBytes(rowKey));
put.add(Bytes.toBytes(family), Bytes.toBytes(qualifier), Bytes.toBytes(value));
ht.put(put);
}
public static void main(String [] agrs) throws Exception{
myHbase h= new myHbase();
String [] familys = {"family1","family2"};
h.createTable("mytable", familys);
h.putData("mytable", "row", "family1", "qualifier:name1", "value1");
}

}

运行java应用程序：登录hbase shell 发现可以get和scan到数据了：

hbase(main):016:0> scan 'mytable'
ROW COLUMN+CELL
row column=family1:qualifier:name1, timestamp=1354559928275, v
alue=value1
1 row(s) in 0.0410 seconds

hbase(main):017:0> get 'mytable','row','family1:qualifier:name1'
COLUMN CELL
family1:qualifier:na timestamp=1354559928275, value=value1
me1
1 row(s) in 0.0120 seconds