package shangke;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import shangke.ExampleForHbase;
import javax.swing.*;
public class test extends JFrame
{
//控件
JLabel jb1 = new JLabel();
JTextField platName = new JTextField(15);
JLabel jb2 = new JLabel();
JTextField platNumber = new JTextField(15);
JLabel jb3=new JLabel();
JTextField date = new JTextField(15);
JLabel jb4=new JLabel();
JTextField number = new JTextField(15);
JLabel jb5=new JLabel();
JTextField tec = new JTextField(15);
//定义
FlowLayout flow = new FlowLayout();
JTextArea jt1 = new JTextArea();
JButton button = new JButton();
JButton button1 = new JButton();
JButton button2 = new JButton();
JButton button3 = new JButton();
public test()
{
try
{
jbInit();
}
catch (Exception e)
{
e.printStackTrace();
}
}
private void jbInit()throws Exception
{
setSize(new Dimension(260,200));
getContentPane().setLayout(flow);
jb1.setText("平台名称");
platName.setText("");
jb2.setText("平台编号");
platNumber.setText("");
jb3.setText("批准年月");
date.setText("");
jb4.setText("批准文号");
number.setText("");
jb5.setText("技术领域");
tec.setText("");
jt1.setText("");
button.setText("插入");
button1.setText("删除");
button2.setText("修改");
button3.setText("查询");
button.addActionListener(new test_jButton1_actionAdapter(this));
button1.addActionListener(new test_jButton2_actionAdapter(this));
button2.addActionListener(new test_jButton3_actionAdapter(this));
button3.addActionListener(new test_jButton4_actionAdapter(this));
this.getContentPane().add(jb1);
this.getContentPane().add(platName);
this.getContentPane().add(jb2);
this.getContentPane().add(platNumber);
this.getContentPane().add(jb3);
this.getContentPane().add(date);
this.getContentPane().add(jb4);
this.getContentPane().add(number);
this.getContentPane().add(jb5);
this.getContentPane().add(tec);
this.getContentPane().add(button);
this.getContentPane().add(button1);
this.getContentPane().add(button2);
this.getContentPane().add(button3);
}
public static void main(String[] args)
{
test test=new test();
test.setVisible(true);
}
}
class test_jButton1_actionAdapter implements ActionListener
{
private test adaptee;
test_jButton1_actionAdapter(test adaptee)
{
this.adaptee=adaptee;
}
public void actionPerformed(ActionEvent e)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e2)
{
e2.printStackTrace();
}
String platName=adaptee.platName.getText();
String platNumber=adaptee.platNumber.getText();
//adaptee.jt1.setText("您的用户名是："+username+"您的输入密码是："+String.valueOf(pwd));
String date=adaptee.date.getText();
String number=adaptee.number.getText();
String tec=adaptee.tec.getText();
try
{
ExampleForHbase.insertRow("Test", "1", "platName", "", platName);
ExampleForHbase.insertRow("Test", "1", "platNumber", "", platNumber);
ExampleForHbase.insertRow("Test", "1", "date", "", date);
ExampleForHbase.insertRow("Test", "1", "number", "", number);
ExampleForHbase.insertRow("Test", "1", "tec", "", tec);
JOptionPane.showMessageDialog(adaptee,"插入成功");
}
catch (IOException e)
{
e.printStackTrace();
}
}
});
}
}
//delete
class test_jButton2_actionAdapter implements ActionListener
{
private test adaptee;
test_jButton2_actionAdapter(test adaptee)
{
this.adaptee=adaptee;
}
public void actionPerformed(ActionEvent e)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e2)
{
e2.printStackTrace();
}
String str=JOptionPane.showInputDialog("请输入要删除的平台编号");
try
{
ExampleForHbase.deleteRow("Test", "1", "", "");
JOptionPane.showMessageDialog(adaptee,"删除成功");
}
catch (IOException e)
{
e.printStackTrace();
}
}
});
}
}
//update
class test_jButton3_actionAdapter implements ActionListener
{
private test adaptee;
test_jButton3_actionAdapter(test adaptee)
{
this.adaptee=adaptee;
}
public void actionPerformed(ActionEvent e)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e2)
{
e2.printStackTrace();
}
String str=JOptionPane.showInputDialog("请输入要修改的平台编号");
try
{
if(ExampleForHbase.getData("Test", "1", "platName", "")!=null)
{
ExampleForHbase.deleteRow("Test", "1", "", "");
String str1=JOptionPane.showInputDialog("请输入要修改的平台编号");
String str2=JOptionPane.showInputDialog("请输入要修改的平台名称");
String str3=JOptionPane.showInputDialog("请输入要修改的批准年月");
String str4=JOptionPane.showInputDialog("请输入要修改的批准文号");
String str5=JOptionPane.showInputDialog("请输入要修改的技术领域");
ExampleForHbase.insertRow("Test", "1", "platName", "", str1);
ExampleForHbase.insertRow("Test", "1", "platNumber", "", str2);
ExampleForHbase.insertRow("Test", "1", "date", "", str3);
ExampleForHbase.insertRow("Test", "1", "number", "", str4);
ExampleForHbase.insertRow("Test", "1", "tec", "", str5);
JOptionPane.showMessageDialog(adaptee,"修改成功");
}
else
{
JOptionPane.showMessageDialog(adaptee,"所要修改的不存在");
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
});
}
}
//select
class test_jButton4_actionAdapter implements ActionListener
{
private test adaptee;
test_jButton4_actionAdapter(test adaptee)
{
this.adaptee=adaptee;
}
public void actionPerformed(ActionEvent e)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
try
{
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}
catch (Exception e2)
{
e2.printStackTrace();
}
try
{
String str=JOptionPane.showInputDialog("请输入要查询的平台编号");
String platName=ExampleForHbase.getData("Test", "1", "platName", "");
String platNumber=ExampleForHbase.getData("Test", "1", "platNumber", "");
String date=ExampleForHbase.getData("Test", "1", "date", "");
String number=ExampleForHbase.getData("Test", "1", "number", "");
String tec=ExampleForHbase.getData("Test", "1", "tec", "");
if(platName==null)
{
JOptionPane.showMessageDialog(adaptee,"查询为空");
}
else
{
JOptionPane.showMessageDialog(adaptee,"平台名称:"+platName+"
平台编号:"+platNumber+"
批准年月:"+date+"
批准文号:"+number+"
技术领域:"+tec);
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
});
}
}
package shangke;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import java.io.IOException;
public class ExampleForHbase{
public static Configuration configuration;
public static Connection connection;
public static Admin admin;
//主函数中的语句请逐句执行，只需删除其前的//即可，如：执行insertRow时请将其他语句注释
public static void main(String[] args)throws IOException{
//创建一个表，表名为Score，列族为sname,course
//createTable("Test",new String[]{"platName","platNumber","date","number","tec"});
//在Score表中插入一条数据，其行键为95001,sname为Mary（因为sname列族下没有子列所以第四个参数为空）
//等价命令：put 'Score','95001','sname','Mary'
//insertRow("Score", "95001", "sname", "", "Mary");
//在Score表中插入一条数据，其行键为95001,course:Math为88（course为列族，Math为course下的子列）
//等价命令：put 'Score','95001','score:Math','88'
//insertRow("Score", "95001", "course", "Math", "88");
//在Score表中插入一条数据，其行键为95001,course:English为85（course为列族，English为course下的子列）
//等价命令：put 'Score','95001','score:English','85'
//insertRow("Score", "95001", "course", "English", "85");
//1、删除Score表中指定列数据，其行键为95001,列族为course，列为Math
//执行这句代码前请deleteRow方法的定义中，将删除指定列数据的代码取消注释注释，将删除制定列族的代码注释
//等价命令：delete 'Score','95001','score:Math'
//deleteRow("Score", "95001", "course", "Math");
//2、删除Score表中指定列族数据，其行键为95001,列族为course（95001的Math和English的值都会被删除）
//执行这句代码前请deleteRow方法的定义中，将删除指定列数据的代码注释，将删除制定列族的代码取消注释
//等价命令：delete 'Score','95001','score'
//deleteRow("Score", "95001", "course", "");
//3、删除Score表中指定行数据，其行键为95001
//执行这句代码前请deleteRow方法的定义中，将删除指定列数据的代码注释，以及将删除制定列族的代码注释
//等价命令：deleteall 'Score','95001'
//deleteRow("Score", "95001", "", "");
//查询Score表中，行键为95001，列族为course，列为Math的值
//getData("Score", "95001", "course", "Math");
//查询Score表中，行键为95001，列族为sname的值（因为sname列族下没有子列所以第四个参数为空）
getData("Test", "1", "tec", "");
//删除Score表
//deleteTable("Score");
}
//建立连接
public static void init(){
configuration = HBaseConfiguration.create();
configuration.set("hbase.rootdir","hdfs://192.168.180.128:9000/hbase");
try{
connection = ConnectionFactory.createConnection(configuration);
admin = connection.getAdmin();
}catch (IOException e){
e.printStackTrace();
}
}
//关闭连接
public static void close(){
try{
if(admin != null){
admin.close();
}
if(null != connection){
connection.close();
}
}catch (IOException e){
e.printStackTrace();
}
}
/**
* 建表。HBase的表中会有一个系统默认的属性作为主键，主键无需自行创建，默认为put命令操作中表名后第一个数据，因此此处无需创建id列
* @param myTableName 表名
* @param colFamily 列族名
* @throws IOException
*/
public static void createTable(String myTableName,String[] colFamily) throws IOException {
init();
TableName tableName = TableName.valueOf(myTableName);
if(admin.tableExists(tableName)){
System.out.println("talbe is exists!");
}else {
HTableDescriptor hTableDescriptor = new HTableDescriptor(tableName);
for(String str:colFamily){
HColumnDescriptor hColumnDescriptor = new HColumnDescriptor(str);
hTableDescriptor.addFamily(hColumnDescriptor);
}
admin.createTable(hTableDescriptor);
System.out.println("create table success");
}
close();
}
/**
* 删除指定表
* @param tableName 表名
* @throws IOException
*/
public static void deleteTable(String tableName) throws IOException {
init();
TableName tn = TableName.valueOf(tableName);
if (admin.tableExists(tn)) {
admin.disableTable(tn);
admin.deleteTable(tn);
}
close();
}
/**
* 查看已有表
* @throws IOException
*/
public static void listTables() throws IOException {
init();
HTableDescriptor hTableDescriptors[] = admin.listTables();
for(HTableDescriptor hTableDescriptor :hTableDescriptors){
System.out.println(hTableDescriptor.getNameAsString());
}
close();
}
/**
* 向某一行的某一列插入数据
* @param tableName 表名
* @param rowKey 行键
* @param colFamily 列族名
* @param col 列名（如果其列族下没有子列，此参数可为空）
* @param val 值
* @throws IOException
*/
public static void insertRow(String tableName,String rowKey,String colFamily,String col,String val) throws IOException {
init();
Table table = connection.getTable(TableName.valueOf(tableName));
Put put = new Put(rowKey.getBytes());
put.addColumn(colFamily.getBytes(), col.getBytes(), val.getBytes());
table.put(put);
table.close();
close();
}
/**
* 删除数据
* @param tableName 表名
* @param rowKey 行键
* @param colFamily 列族名
* @param col 列名
* @throws IOException
*/
public static void deleteRow(String tableName,String rowKey,String colFamily,String col) throws IOException {
init();
Table table = connection.getTable(TableName.valueOf(tableName));
Delete delete = new Delete(rowKey.getBytes());
//删除指定列族的所有数据
//delete.addFamily(colFamily.getBytes());
//删除指定列的数据
//delete.addColumn(colFamily.getBytes(), col.getBytes());
table.delete(delete);
table.close();
close();
}
/**
* 根据行键rowkey查找数据
* @param tableName 表名
* @param rowKey 行键
* @param colFamily 列族名
* @param col 列名
* @throws IOException
*/
public static String getData(String tableName,String rowKey,String colFamily,String col)throws IOException{
String str = null;
init();
Table table = connection.getTable(TableName.valueOf(tableName));
Get get = new Get(rowKey.getBytes());
get.addColumn(colFamily.getBytes(),col.getBytes());
Result result = table.get(get);
showCell(result);
Cell[] cells = result.rawCells();
for(Cell cell:cells)
{
str=new String(CellUtil.cloneValue(cell),"UTF-8");
}
table.close();
close();
return str;
}
/**
* 格式化输出
* @param result
*/
public static void showCell(Result result)
{
Cell[] cells = result.rawCells();
for(Cell cell:cells){
System.out.println(new String(CellUtil.cloneValue(cell))+" ");
}
}
}
