hbase存取图片

package hbase.test;import java.io.IOException;import org.apache.commons.io.FileUtils;import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.hbase.HBaseConfiguration;import org.apache.hadoop.hbase.HColumnDescriptor;import org.apache.hadoop.hbase.HTableDescriptor;import org.apache.hadoop.hbase.KeyValue;import org.apache.hadoop.hbase.MasterNotRunningException;import org.apache.hadoop.hbase.ZooKeeperConnectionException;import org.apache.hadoop.hbase.client.Delete;import org.apache.hadoop.hbase.client.Get;import org.apache.hadoop.hbase.client.HBaseAdmin;import org.apache.hadoop.hbase.client.HTable;import org.apache.hadoop.hbase.client.Put;import org.apache.hadoop.hbase.client.Result;import org.apache.hadoop.hbase.client.ResultScanner;import org.apache.hadoop.hbase.client.Scan;import org.apache.hadoop.hbase.util.Bytes;public class HbaseTest {                        static Configuration configuration = null;                        static {                        configuration = HBaseConfiguration.create();            }            //存储图片            /**             * @param tableName 表名             * @param rowkey 行号             * @param colFamily 列簇             * @param colName 列名             * @param bs 列值，此处为图片             * @param imgType             * 图片类型，读取图片时使用，图片类型的列名指定为imageType,imgType这里指的是列名为imageType的列值             */            public static void storeImage(String tableName, String rowkey, String colFamily, String colName, byte[] bs, String imgType) throws IOException {                        HTable table = new HTable(configuration, tableName);                                                java.util.List<Put> puts = new java.util.ArrayList<Put>();                        //存二进制图片                        Put put = new Put(Bytes.toBytes(rowkey));                        put.add(Bytes.toBytes(colFamily), Bytes.toBytes(colName), bs);                        //存图片类型                        Put putx = new Put(Bytes.toBytes(rowkey));                        putx.add(Bytes.toBytes(colFamily), Bytes.toBytes("imageType"), Bytes.toBytes(imgType));                                                puts.add(put);                        puts.add(putx);                        //put.a                        //table.put(put);                        table.put(puts);                        table.close();            }            //读取图片            public static void getImage(String tableName, String rowkey) throws IOException {                        HTable table = new HTable(configuration, tableName);                        Get get = new Get(Bytes.toBytes(rowkey));                        Result result = table.get(get);                        for (KeyValue k : result.raw()) {                                    String col = Bytes.toStringBinary(k.getQualifier());                                    System.out.println("===k:String===>>:" + col);                                    if (col.equals("imgContent")) {                                                byte[] bs = k.getValue();                                                FileUtils.writeByteArrayToFile(new java.io.File("/home/zcwangjb/document/hbase.jpg"), bs);                                    }                        }                        table.close();            }            //创建表并指定列簇            public static void createTable(String tableName, String cols[]) throws MasterNotRunningException, ZooKeeperConnectionException, IOException {                        HBaseAdmin baseAdmin = new HBaseAdmin(configuration);                        if (baseAdmin.tableExists(tableName)) {                                    System.out.println("表【" + tableName + "】存在");                        } else {                                    HTableDescriptor tableDescriptor = new HTableDescriptor(tableName);                                    for (String s : cols) {                                                HColumnDescriptor columnDescriptor = new HColumnDescriptor(s);                                                tableDescriptor.addFamily(columnDescriptor);                                    }                                    baseAdmin.createTable(tableDescriptor);                                    baseAdmin.close();                        }            }            //删除表            public static void deleteTable(String tableName) throws MasterNotRunningException, ZooKeeperConnectionException, IOException {                        HBaseAdmin admin = new HBaseAdmin(configuration);                        if (admin.tableExists(tableName)) {                                    admin.disableTable(tableName);                                    admin.deleteTable(tableName);                        }            }            //添加数据            /**             * @param tableName 表名             * @param rowkey 行号             * @param colFamily 列簇             * @param column 列             * @param value 列值             */            public static void insertData(String tableName, String rowkey, String colFamily, String column, String value) throws IOException {                        HTable table = new HTable(configuration, tableName);                        Put put = new Put(Bytes.toBytes(rowkey));                        put.add(Bytes.toBytes(colFamily), Bytes.toBytes(column), Bytes.toBytes(value));                        table.put(put);                        table.close();            }            //查询一条数据            public static void getOneByeRowkey(String tableName, String rowkey) throws IOException {                        HTable table = new HTable(configuration, tableName);                        Get get = new Get(Bytes.toBytes(rowkey));                        Result result = table.get(get);                        for (KeyValue k : result.raw()) {                                    System.out.println("行号：" + Bytes.toStringBinary(k.getRow()));                                    System.out.println("时间戳：" + k.getTimestamp());                                    System.out.println("列簇：" + Bytes.toStringBinary(k.getFamily()));                                    System.out.println("列：" + Bytes.toStringBinary(k.getQualifier()));                                    System.out.println("值：" + Bytes.toString(k.getValue()));                        }                        table.close();            }            //查询指定数据            public static void scanData(String tableName) throws IOException {                        HTable table = new HTable(configuration, tableName);                        Scan scan = new Scan();                        ResultScanner rs = table.getScanner(scan);                        for (Result result : rs) {                                    for (KeyValue k : result.raw()) {                                                System.out.println("行号：" + Bytes.toStringBinary(k.getRow()));                                                System.out.println("时间戳：" + k.getTimestamp());                                                System.out.println("列簇：" + Bytes.toStringBinary(k.getFamily()));                                                System.out.println("列：" + Bytes.toStringBinary(k.getQualifier()));                                                System.out.println("值：" + Bytes.toString(k.getValue()));                                    }                        }                        table.close();            }            //删除一条数据            @SuppressWarnings("empty-statement")            public static void deleteByRow(String tableName, String rowkey) throws IOException {                        HTable table = new HTable(configuration, tableName);                        //删除一条数据                        Delete delete = new Delete(Bytes.toBytes(rowkey));                        table.delete(delete);                        //删除多条数据                        String[] rowkeys = {};                        java.util.List<Delete> list = new java.util.ArrayList<Delete>();                        for (String rk : rowkeys) {                                    Delete d = new Delete(Bytes.toBytes(rk));                                    list.add(d);                        }                        table.delete(list);                        //                        table.close();            }                        public static void main(String[] args) throws ZooKeeperConnectionException, IOException {                        String tableName = "mytest";                        String cols[] = {"a", "b", "c"};                        // createTable(tableName, cols);                        //  insertData(tableName, "1", "a", "abc", "11111");                        // getOneByeRowkey(tableName, "1");                        //scanData(tableName);                        // deleteByRow(tableName, "1");                        // scanData(tableName);                        //getImage(tableName, "1");//                        String imgType = ".jpg";//                        byte[] bs = null;//                        java.io.InputStream is = new java.io.FileInputStream(new File("/home/zcwangjb/document/solr.jpg"));//                        bs = IOUtils.toByteArray(is);//                        storeImage(tableName, "1", "a", "imgContent", bs, imgType);                        getImage(tableName, "1");            }            }