hbase存储照片的修改

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//照片格式201603022112.jpg（年月日时分）

import java.io.IOException;
import java.util.Scanner;

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.MasterNotRunningException;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
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.HTablePool;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.util.Bytes;

import com.itheima.io.filter.MyFilenameFilter;

import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class OperationTable {
static BASE64Encoder encoder = new sun.misc.BASE64Encoder();
static BASE64Decoder decoder = new sun.misc.BASE64Decoder();
private static Configuration conf = null;
static {
conf = HBaseConfiguration.create();
conf.set("hbase.zookeeper.quorum", "master");// 使用eclipse时必须添加这个，否则无法定位master需要配置hosts
conf.set("hbase.zookeeper.property.clientPort", "2181");
}

public static void main(String[] args) throws IOException {
// 创建表
createTable("test","time");

// 根据文件夹将内部所有照片导入
// File file = new File("E:\\qwe");//文件位置
// File files[] = file.listFiles(new MyFilenameFilter());
// for(File f : files)
// {
// String name = f.getName();
// String year = name.substring(0,4);
// String month = name.substring(4,6);
// String day = name.substring(6,8);
// String hour = name.substring(8,10);
// String minute = name.substring(10,12);
// String address = f.toString();
// String a=getImageBinary(address);
// String[] cols = { hour+":"+minute};//列
// String[] colsValue = {a};//值
// addData("test",year+"-"+month+"-"+day, cols, colsValue);//表名，行健，列，值
// System.out.println(f);
// }




// //获得数据
// Scanner scan = new Scanner(System.in);
// String read = scan.nextLine();
// String read1 = scan.nextLine();
// String a=getData("test", read,"time",read1);
//将从hbase中获得二进制转化成照片放在本地

// base64StringToImage(a,"E://qwe//123");//第四个参数输出地址



//举例
// String[] cols = {"21:03","12:02"};//列簇
// String[] colsValue = {"2016-03-03","2"};//值
// addData("test","2015-06-03", cols, colsValue);//表名，行健，列簇，值

}
//在Hasee里建立表
private static void createTable(String TableName,String family) throws MasterNotRunningException,
ZooKeeperConnectionException, IOException {

HBaseAdmin admin = new HBaseAdmin(conf);// 新建一个数据库管理员
if (admin.tableExists(TableName)) {
System.out.println("table is exist!");
System.exit(0);
} else {

HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(TableName));
desc.addFamily(new HColumnDescriptor(family));
admin.createTable(desc);
admin.close();
System.out.println("create table Success!");
}
}

//插入多条数据
private static void addData(String tableName,String rowKey, String[] column1, String[] value1) throws IOException {
Put put = new Put(Bytes.toBytes(rowKey));// 设置rowkey
HTable table = new HTable(conf, Bytes.toBytes(tableName));// HTabel负责跟记录相关的操作如增删改查等//

// 获取表
HColumnDescriptor[] columnFamilies = table.getTableDescriptor() // 获取所有的列族
.getColumnFamilies();

for (int i = 0; i < columnFamilies.length; i++) {
String familyName = columnFamilies[i].getNameAsString(); // 获取列族名
if (familyName.equals("time")) { // article列族put数据
for (int j = 0; j < column1.length; j++) {
put.add(Bytes.toBytes(familyName),
Bytes.toBytes(column1[j]), Bytes.toBytes(value1[j]));
}
}

}
table.put(put);
System.out.println("add data Success!");
}

//将一张照片转化成二进制返回
static String getImageBinary(String address) {
File f = new File(address);
BufferedImage bi;
try {
bi = ImageIO.read(f);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bi, "jpg", baos); //经测试转换的图片是格式这里就什么格式，否则会失真
byte[] bytes = baos.toByteArray();

return encoder.encodeBuffer(bytes).trim();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}

//将二进制转换成照片存进电脑
static void base64StringToImage(String base64String,String address) {
try {
byte[] bytes1 = decoder.decodeBuffer(base64String);

ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
BufferedImage bi1 = ImageIO.read(bais);

File w2 = new File(address+"//"+"查找文件"+".jpg");// 可以是jpg,png,gif格式
ImageIO.write(bi1, "jpg", w2);// 不管输出什么格式图片，此处不需改动
} catch (IOException e) {
e.printStackTrace();
}
}

//根据表名和行健查等找图片的二进制
private static String getData( String tableName,String rowKey,String family,String qualifier) throws IOException {
HTable table = new HTable(conf, Bytes.toBytes(tableName));

// Instantiating Get class
Get g = new Get(Bytes.toBytes(rowKey));

// Reading the data
Result result = table.get(g);

String a = new String(result.getValue(family.getBytes(), qualifier.getBytes()));


System.out.println("get data Success!");
return a;
}


}

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