1.进行hbase与本机远程连接测试连接

1.1 修改虚拟机文件hbase-site.xml（cd/usr/local/hbase/conf)文件，把localhost换成你的虚拟机主机名字

1.2修改虚拟机hosts文件，把以前的注释掉，并加上ip地址与主机名的映射关系

1.3修改主机hosts文件 同上

1.4 测试连接

  1. package model;
  2.  
  3. import java.io.IOException;
  4.  
  5. import org.apache.hadoop.conf.Configuration;
  6. import org.apache.hadoop.fs.*;
  7. import org.apache.hadoop.hbase.Cell;
  8. import org.apache.hadoop.hbase.CellUtil;
  9. import org.apache.hadoop.hbase.HBaseConfiguration;
  10. import org.apache.hadoop.hbase.HColumnDescriptor;
  11. import org.apache.hadoop.hbase.HTableDescriptor;
  12. import org.apache.hadoop.hbase.TableName;
  13. import org.apache.hadoop.hbase.client.*;
  14. import org.apache.hadoop.hbase.client.Connection;
  15. import org.apache.hadoop.hbase.client.ConnectionFactory;
  16. import org.apache.hadoop.hbase.client.Put;
  17. import org.apache.hadoop.hbase.client.Scan;
  18. import org.apache.hadoop.hbase.client.Table;
  19. import org.apache.hadoop.hbase.util.Bytes;
  20. import org.apache.hadoop.io.IOUtils;
  21. import org.apache.hadoop.util.Progressable;
  22. public class HelloHBase {
  23.      public static Configuration configuration;
  24.      public static Connection connection;
  25.      public static Admin admin;
  26.      public static long ts;
  27.  
  28.      //建立连接
  29.         public static void init(){
  30.             configuration  = HBaseConfiguration.create();
  31.             configuration.set("hbase.zookeeper.quorum","192.168.146.128");
  32.             try{
  33.                 connection = ConnectionFactory.createConnection(configuration);
  34.                 admin = connection.getAdmin();
  35.             }catch (IOException e){
  36.                 e.printStackTrace();
  37.             }
  38.         }
  39.         //关闭连接
  40.         public static void close(){
  41.             try{
  42.                 if(admin != null){
  43.                     admin.close();
  44.                 }
  45.                 if(null != connection){
  46.                     connection.close();
  47.                 }
  48.             }catch (IOException e){
  49.                 e.printStackTrace();
  50.             }
  51.         }
  52.  
  53.         /**
  54.          * 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
  55.          * @param myTableName 表名
  56.          * @param colFamily 列族名
  57.          * @throws IOException
  58.          */
  59.         public static void createTable(String myTableName,String[] colFamily) throws IOException {
  60.  
  61.             init();
  62.             TableName tableName = TableName.valueOf(myTableName);
  63.  
  64.             if(admin.tableExists(tableName)){
  65.                 System.out.println("talbe is exists!");
  66.             }else {
  67.                 HTableDescriptor hTableDescriptor = new HTableDescriptor(tableName);
  68.                 for(String str:colFamily){
  69.                     HColumnDescriptor hColumnDescriptor = new HColumnDescriptor(str);
  70.                     hTableDescriptor.addFamily(hColumnDescriptor);
  71.                 }
  72.                 admin.createTable(hTableDescriptor);
  73.                 System.out.println("create table success");
  74.             }
  75.             close();
  76.         }
  77.         /**
  78.          * 向某一行的某一列插入数据
  79.          * @param tableName 表名
  80.          * @param rowKey 行键
  81.          * @param colFamily 列族名
  82.          * @param col 列名（如果其列族下没有子列，此参数可为空）
  83.          * @param val 值
  84.          * @throws IOException
  85.          */
  86.         public static void insertRow(String tableName,String rowKey,String colFamily,String col,String val) throws IOException {
  87.             init();
  88.             Table table = connection.getTable(TableName.valueOf(tableName));
  89.             Put put = new Put(rowKey.getBytes());
  90.             put.addColumn(colFamily.getBytes(), col.getBytes(), val.getBytes());
  91.             table.put(put);
  92.             table.close();
  93.             close();
  94.         }
  95.  
  96.      public static void main(String [] args)throws IOException {
  97.          createTable("platform",new String[]{"article","PId","Pnum","approval_num","techField","PLevel","city","JJJGJ","Pform","faren_type","unite"});
  98.          //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）
  99.          //等价命令：put 'Score','95001','sname','Mary'
  100.          //insertRow("platform", "2", "Pname", "", "KYL");
  101.          //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）
  102.          //等价命令：put 'Score','95001','score:Math','88'
  103.          //insertRow("platform", "2", "PId", "", "2");
  104.          //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）
  105.          //等价命令：put 'Score','95001','score:English','85'
  106.          //insertRow("platform", "2", "Pnum", "", "2019-1-25");
  107.          //insertRow("platform", "2", "approval_num", "", "123-456");
  108.          //insertRow("platform", "2", "techField", "", "心理");
  109.          //insertRow("platform", "2", "PLevel", "", "国家级");
  110.          //insertRow("platform", "2", "city", "", "湖南长沙岳麓区");
  111.          //insertRow("platform", "2", "JJJGJ", "", "是");
  112.          //insertRow("platform", "2", "Pform", "", "内设机构相对独立");
  113.          //insertRow("platform", "2", "faren_type", "", "事业法人");
  114.          //insertRow("platform", "2", "unite", "", "多单位联合共建");
  115.      }
  116. }

成功会控制台输出 create table success

2.Java api实例操作增删改查

系统流程为：填表->根据平台编号查看平台相关信息->根据平台编号修改信息->根据平台编号删除信息

遇到的问题见上个博客，一定要注意HBase与tomcat的包会有冲突

还有几个值得注意的是：hbase的包在写web界面要放到WEB-INF/lib下

几个界面截图如下：

model包

  1. package model;
  2.  
  3. import java.sql.Date;
  4.  
  5. public class platform {
  6. 	private String Pname;  //楠炲啿褰撮崥宥囆�
  7. 	private String PId; //楠炲啿褰寸紓鏍у娇
  8. 	private String Pnum;//閹电懓鍣獮瀛樻箑
  9. 	private String approval_num; //閹电懓鍣弬鍥у娇
  10. 	private String techField; //閹讹拷閺堫垶顣崺锟�
  11. 	private String PLevel; //楠炲啿褰寸痪褍鍩�
  12. 	private String city;//閹碉拷閸︺劌绔堕崠锟�
  13. 	private String JJJGJ;//娴滎剚瑙﹂崘锟介崗鍗炵紦
  14. 	private String Pform;//楠炲啿褰寸紒鍕矏瑜般垹绱�
  15. 	private String faren_type;//濞夋洑姹夌猾璇茬��
  16. 	private String unite; //閼辨柨鎮庨崗鍗炵紦
  17. 	public platform(String Pname, String Pnum, String approval_num, String techField, String PLevel, String city, String Pform, String faren_type, String unite, String JJJGJ) {
  18. 		this.Pname = Pname;
  19. 		this.Pnum = Pnum;
  20. 		this.approval_num = approval_num;
  21. 		this.techField = techField;
  22. 		this.PLevel = PLevel;
  23. 		this.city = city;
  24. 		this.JJJGJ = JJJGJ;
  25. 		this.Pform = Pform;
  26. 		this.faren_type = faren_type;
  27. 		this.unite = unite;
  28. 	}
  29. 	public platform() {
  30.  
  31. 	}
  32. 	public String getPname() {
  33. 		return Pname;
  34. 	}
  35. 	public void setPname(String pname) {
  36. 		Pname = pname;
  37. 	}
  38.  
  39. 	public String getPId() {
  40. 		return PId;
  41. 	}
  42. 	public void setPId(String pId) {
  43. 		PId = pId;
  44. 	}
  45. 	public String getPnum() {
  46. 		return Pnum;
  47. 	}
  48. 	public void setPnum(String pnum) {
  49. 		Pnum = pnum;
  50. 	}
  51. 	public String getApproval_num() {
  52. 		return approval_num;
  53. 	}
  54. 	public void setApproval_num(String approval_num) {
  55. 		this.approval_num = approval_num;
  56. 	}
  57. 	public String getTechField() {
  58. 		return techField;
  59. 	}
  60. 	public void setTechField(String techField) {
  61. 		this.techField = techField;
  62. 	}
  63. 	public String getCity() {
  64. 		return city;
  65. 	}
  66. 	public void setCity(String city) {
  67. 		this.city = city;
  68. 	}
  69. 	public String getPLevel() {
  70. 		return PLevel;
  71. 	}
  72. 	public void setPLevel(String pLevel) {
  73. 		PLevel = pLevel;
  74. 	}
  75. 	public String getJJJGJ() {
  76. 		return JJJGJ;
  77. 	}
  78. 	public void setJJJGJ(String jJJGJ) {
  79. 		JJJGJ = jJJGJ;
  80. 	}
  81. 	public String getPform() {
  82. 		return Pform;
  83. 	}
  84. 	public void setPform(String pform) {
  85. 		Pform = pform;
  86. 	}
  87. 	public String getFaren_type() {
  88. 		return faren_type;
  89. 	}
  90. 	public void setFaren_type(String faren_type) {
  91. 		this.faren_type = faren_type;
  92. 	}
  93. 	public String getUnite() {
  94. 		return unite;
  95. 	}
  96. 	public void setUnite(String unite) {
  97. 		this.unite = unite;
  98. 	}
  99.  
  100. }

　　

dao层

  1. package dao;
  2. import java.io.IOException;
  3.  
  4. import org.apache.hadoop.conf.Configuration;
  5. import org.apache.hadoop.fs.*;
  6. import org.apache.hadoop.hbase.Cell;
  7. import org.apache.hadoop.hbase.CellUtil;
  8. import org.apache.hadoop.hbase.HBaseConfiguration;
  9. import org.apache.hadoop.hbase.HColumnDescriptor;
  10. import org.apache.hadoop.hbase.HTableDescriptor;
  11. import org.apache.hadoop.hbase.KeyValue;
  12. import org.apache.hadoop.hbase.TableName;
  13. import org.apache.hadoop.hbase.client.*;
  14. import org.apache.hadoop.hbase.util.Bytes;
  15. import org.apache.hadoop.io.IOUtils;
  16. import org.apache.hadoop.util.Progressable;
  17.  
  18. import model.platform;
  19. public class PlatformDao {
  20. 	 public static Configuration configuration;
  21. 	 public static Connection connection;
  22. 	 public static Admin admin;
  23. 	 public static long ts;
  24.  
  25. 	 //建立连接
  26. 	    public static void init(){
  27. 	        configuration  = HBaseConfiguration.create();
  28. 	        configuration.set("hbase.zookeeper.quorum","192.168.146.128");
  29. 	        try{
  30. 	            connection = ConnectionFactory.createConnection(configuration);
  31. 	            admin = connection.getAdmin();
  32. 	        }catch (IOException e){
  33. 	            e.printStackTrace();
  34. 	        }
  35. 	    }
  36. 	    //关闭连接
  37. 	    public static void close(){
  38. 	        try{
  39. 	            if(admin != null){
  40. 	                admin.close();
  41. 	            }
  42. 	            if(null != connection){
  43. 	                connection.close();
  44. 	            }
  45. 	        }catch (IOException e){
  46. 	            e.printStackTrace();
  47. 	        }
  48. 	    }
  49.  
  50. 	    @SuppressWarnings("deprecation")
  51. 		public  platform  get(String tableName,String rowKey) {
  52. 	    	 init();
  53. 	    	 Table table = null;
  54. 	    	 platform platform = new platform();
  55. 			try {
  56. 				table = connection.getTable(TableName.valueOf(tableName));
  57. 				 Get get = new Get(rowKey.getBytes());
  58.  
  59. 		         Result result = table.get(get);
  60.  
  61. 		         KeyValue[] raw = result.raw();
  62. 		         platform.setPId(new String(raw[1].getValue()) );
  63. 		         platform.setPname(new String(raw[4].getValue()) );
  64. 		         platform.setPnum(new String(raw[5].getValue()) );
  65. 		         platform.setApproval_num(new String(raw[6].getValue()) );
  66. 		         platform.setTechField(new String(raw[9].getValue()) );
  67. 		         platform.setPLevel(new String(raw[2].getValue()) );
  68. 		         platform.setCity(new String(raw[7].getValue()) );
  69. 		         platform.setJJJGJ(new String(raw[0].getValue()) );
  70. 		         platform.setPform(new String(raw[3].getValue()) );
  71. 		         platform.setFaren_type(new String(raw[8].getValue()) );
  72. 		         platform.setUnite(new String(raw[10].getValue()) );
  73. 		         System.out.println("平台编号："+platform.getPId());
  74. 		         System.out.println("平台姓名："+platform.getPname());
  75. 		         System.out.println("批准年月："+platform.getPnum());
  76. 		         System.out.println("批准文号："+platform.getApproval_num());
  77. 		         System.out.println("技术领域："+platform.getTechField());
  78. 		         System.out.println("平台等级："+platform.getPLevel());
  79. 		         System.out.println("所在市区："+platform.getCity());
  80. 		         System.out.println("京津冀共建："+platform.getJJJGJ());
  81. 		         System.out.println("平台组织形态："+platform.getPform());
  82. 		         System.out.println("法人类型："+platform.getFaren_type());
  83. 		         System.out.println("联合共建："+platform.getUnite());
  84. 			} catch (IOException e) {
  85. 				// TODO Auto-generated catch block
  86. 				e.printStackTrace();
  87. 			}finally {
  88. 				 try {
  89. 					table.close();
  90. 				} catch (IOException e) {
  91. 					// TODO Auto-generated catch block
  92. 					e.printStackTrace();
  93. 				}
  94. 		         close();
  95. 			}
  96. 			return platform;
  97.  
  98. 		}
  99.  
  100. 	 public static void main(String [] args)throws IOException {
  101. 		 //createTable("platform",new String[]{"article","PId","Pnum","approval_num","techField","PLevel","city","JJJGJ","Pform","faren_type","unite"});
  102. 		 //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）
  103. 	     //等价命令：put 'Score','95001','sname','Mary'
  104. 	     //insertRow("platform", "2", "Pname", "", "KYL");
  105. 	     //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）
  106. 	     //等价命令：put 'Score','95001','score:Math','88'
  107. 	     //insertRow("platform", "2", "PId", "", "2");
  108. 	     //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）
  109. 	     //等价命令：put 'Score','95001','score:English','85'
  110. 	     //insertRow("platform", "2", "Pnum", "", "2019-1-25");
  111. 	     //insertRow("platform", "2", "approval_num", "", "123-456");
  112. 	     //insertRow("platform", "2", "techField", "", "心理");
  113. 	     //insertRow("platform", "2", "PLevel", "", "国家级");
  114. 	     //insertRow("platform", "2", "city", "", "湖南长沙岳麓区");
  115. 	     //insertRow("platform", "2", "JJJGJ", "", "是");
  116. 	     //insertRow("platform", "2", "Pform", "", "内设机构相对独立");
  117. 	     //insertRow("platform", "2", "faren_type", "", "事业法人");
  118. 	     //insertRow("platform", "2", "unite", "", "多单位联合共建");
  119. 		//查询Score表中，行键为95001，列族为course，列为Math的值
  120. 		 //PlatformDao platformDao = new PlatformDao();
  121. 		 //platformDao.get("platform", "123456");
  122. 	        //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）
  123. 	        //getData("Score", "95001", "sname", "");
  124. 	 }
  125. }

　　

servlet

  1. package servlet;
  2.  
  3. import java.io.IOException;
  4. import java.io.PrintWriter;
  5. import java.sql.Date;
  6. import java.text.ParseException;
  7. import java.text.SimpleDateFormat;
  8. import java.util.ArrayList;
  9. import java.util.List;
  10.  
  11. import javax.servlet.ServletException;
  12. import javax.servlet.annotation.WebServlet;
  13. import javax.servlet.http.HttpServlet;
  14. import javax.servlet.http.HttpServletRequest;
  15. import javax.servlet.http.HttpServletResponse;
  16. import javax.servlet.http.HttpSession;
  17.  
  18. import org.apache.hadoop.conf.Configuration;
  19. import org.apache.hadoop.fs.*;
  20. import org.apache.hadoop.hbase.Cell;
  21. import org.apache.hadoop.hbase.CellUtil;
  22. import org.apache.hadoop.hbase.HBaseConfiguration;
  23. import org.apache.hadoop.hbase.HColumnDescriptor;
  24. import org.apache.hadoop.hbase.HTableDescriptor;
  25. import org.apache.hadoop.hbase.TableName;
  26. import org.apache.hadoop.hbase.client.*;
  27. import org.apache.hadoop.hbase.util.Bytes;
  28. import org.apache.hadoop.io.IOUtils;
  29. import org.apache.hadoop.util.Progressable;
  30.  
  31. @SuppressWarnings("serial")
  32. public class FillinServlet extends HttpServlet {
  33.  
  34. 	 public static Configuration configuration;
  35. 	 public static Connection connection;
  36. 	 public static Admin admin;
  37. 	 public static long ts;
  38.  
  39. 	 //建立连接
  40.     public static void init1(){
  41.         configuration  = HBaseConfiguration.create();
  42.         configuration.set("hbase.zookeeper.quorum","192.168.146.128");
  43.         try{
  44.             connection = ConnectionFactory.createConnection(configuration);
  45.             admin = connection.getAdmin();
  46.         }catch (IOException e){
  47.             e.printStackTrace();
  48.         }
  49.     }
  50.     //关闭连接
  51.     public static void close(){
  52.         try{
  53.             if(admin != null){
  54.                 admin.close();
  55.             }
  56.             if(null != connection){
  57.                 connection.close();
  58.             }
  59.         }catch (IOException e){
  60.             e.printStackTrace();
  61.         }
  62.     }
  63.  
  64. 	@Override
  65. 	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
  66. 		// TODO Auto-generated method stub
  67. 		super.doGet(req, resp);
  68. 	}
  69.  
  70. 	@Override
  71. 	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  72. 		// TODO Auto-generated method stub
  73.  
  74. 		request.setCharacterEncoding("utf-8");
  75. 		/**平台锟斤拷锟斤拷锟斤拷息*/
  76. 		 String Pname = request.getParameter("Pname");//平台名称
  77. 		 String PId = request.getParameter("PId");//平台编号
  78. 		 String Pnum = request.getParameter("Pnum"); //批准年月
  79. 		 String approval_num = request.getParameter("approval_num"); //批准文号
  80. 		 String tech_field = request.getParameter("tech_field"); //技术领域
  81. 		 String platform_grade = request.getParameter("platform_grade"); //平台级别
  82. 	     String platform_province = request.getParameter("cmbProvince");            //省
  83. 	     String platform_city = request.getParameter("cmbCity");                    //市
  84. 	     String platform_district = request.getParameter("cmbArea");            //区
  85. 	     String platform_form = request.getParameter("platform_form");           //平台组织形式
  86. 	     String platform_faren_type = request.getParameter("faren_type");        //法人类型
  87. 	     String platform_unite = request.getParameter("unite");                  //联合共建
  88. 	     String platform_jjjgj = request.getParameter("jjjgj");                //京津冀共建
  89. 	     /**
  90. 	      * 锟斤拷锟斤拷锟斤拷锟捷匡拷
  91. 	      */
  92. 	    System.out.println(Pname);
  93. 	    String city = platform_province+platform_city+platform_district;
  94. 	    try {
  95. 	             //等价命令：put 'Score','95001','sname','Mary'
  96. 			     insertRow("platform", PId, "Pname", "", Pname);
  97. 			     //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）
  98. 			     //等价命令：put 'Score','95001','score:Math','88'
  99. 			     insertRow("platform", PId, "PId", "", PId);
  100. 			     //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）
  101. 			     //等价命令：put 'Score','95001','score:English','85'
  102. 			     insertRow("platform", PId, "Pnum", "", Pnum);
  103. 			     insertRow("platform", PId, "approval_num", "", approval_num);
  104. 			     insertRow("platform", PId, "techField", "", tech_field);
  105. 			     insertRow("platform", PId, "PLevel", "", platform_grade);
  106. 			     insertRow("platform", PId, "city", "",city );
  107. 			     insertRow("platform", PId, "JJJGJ", "", platform_jjjgj);
  108. 			     insertRow("platform", PId, "Pform", "", platform_form);
  109. 			     insertRow("platform", PId, "faren_type", "", platform_faren_type);
  110. 			     insertRow("platform", PId, "unite", "", platform_unite);
  111. 	     }catch (IOException e) {
  112. 	            e.printStackTrace();
  113. 	     }
  114. 		response.setCharacterEncoding("GBK");
  115. 		PrintWriter out = response.getWriter();
  116. 		out.println("<script language='javaScript'>alert(\"添加成功!\");</script>");
  117. 		response.setHeader("refresh","1;url = /HBase/index.jsp");
  118. 		Bytes.toBytes("Pname");
  119. 		Bytes.toBytes("PId");
  120. 		Bytes.toBytes("Pnum");
  121. 		Bytes.toBytes("approval_num");
  122. 		Bytes.toBytes("techField");
  123. 		Bytes.toBytes("city");
  124. 		Bytes.toBytes("JJJGJ");
  125. 		Bytes.toBytes("Pform");
  126. 		Bytes.toBytes("faren_type");
  127. 		Bytes.toBytes("unite");
  128. 	}
  129.  
  130. 	/**
  131.      * 向某一行的某一列插入数据
  132.      * @param tableName 表名
  133.      * @param rowKey 行键
  134.      * @param colFamily 列族名
  135.      * @param col 列名（如果其列族下没有子列，此参数可为空）
  136.      * @param val 值
  137.      * @throws IOException
  138.      */
  139.     public static void insertRow(String tableName,String rowKey,String colFamily,String col,String val) throws IOException {
  140.         init1();
  141.         Table table = connection.getTable(TableName.valueOf(tableName));
  142.         Put put = new Put(rowKey.getBytes());
  143.         put.addColumn(colFamily.getBytes(), col.getBytes(), val.getBytes());
  144.         table.put(put);
  145.         table.close();
  146.         close();
  147.     }
  148. }

　　

  1. package servlet;
  2.  
  3. import java.io.IOException;
  4. import java.io.PrintWriter;
  5. import java.sql.Date;
  6. import java.text.ParseException;
  7. import java.text.SimpleDateFormat;
  8. import java.util.ArrayList;
  9. import java.util.List;
  10.  
  11. import javax.servlet.ServletException;
  12. import javax.servlet.annotation.WebServlet;
  13. import javax.servlet.http.HttpServlet;
  14. import javax.servlet.http.HttpServletRequest;
  15. import javax.servlet.http.HttpServletResponse;
  16. import javax.servlet.http.HttpSession;
  17.  
  18. import org.apache.hadoop.conf.Configuration;
  19. import org.apache.hadoop.fs.*;
  20. import org.apache.hadoop.hbase.Cell;
  21. import org.apache.hadoop.hbase.CellUtil;
  22. import org.apache.hadoop.hbase.HBaseConfiguration;
  23. import org.apache.hadoop.hbase.HColumnDescriptor;
  24. import org.apache.hadoop.hbase.HTableDescriptor;
  25. import org.apache.hadoop.hbase.TableName;
  26. import org.apache.hadoop.hbase.client.*;
  27. import org.apache.hadoop.hbase.util.Bytes;
  28. import org.apache.hadoop.io.IOUtils;
  29. import org.apache.hadoop.util.Progressable;
  30.  
  31. public class DeleteServlet extends HttpServlet {
  32.  
  33. 	 public static Configuration configuration;
  34. 	 public static Connection connection;
  35. 	 public static Admin admin;
  36. 	 public static long ts;
  37.  
  38. 	 //建立连接
  39.     public static void init1(){
  40.         configuration  = HBaseConfiguration.create();
  41.         configuration.set("hbase.zookeeper.quorum","192.168.146.128");
  42.         try{
  43.             connection = ConnectionFactory.createConnection(configuration);
  44.             admin = connection.getAdmin();
  45.         }catch (IOException e){
  46.             e.printStackTrace();
  47.         }
  48.     }
  49.     //关闭连接
  50.     public static void close(){
  51.         try{
  52.             if(admin != null){
  53.                 admin.close();
  54.             }
  55.             if(null != connection){
  56.                 connection.close();
  57.             }
  58.         }catch (IOException e){
  59.             e.printStackTrace();
  60.         }
  61.     }
  62.  
  63. 	@Override
  64. 	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  65. 		// TODO Auto-generated method stub
  66.  
  67. 	}
  68.  
  69. 	@Override
  70. 	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  71. 		// TODO Auto-generated method stub
  72.  
  73. 		request.setCharacterEncoding("utf-8");
  74. 		/**平台锟斤拷锟斤拷锟斤拷息*/
  75. 		 String PId = request.getParameter("PId");//平台编号
  76.  
  77. 	    try {
  78. 	             //等价命令：put 'Score','95001','sname','Mary'
  79. 			     deleteRow("platform", PId);
  80. 			     //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）
  81. 			     //等价命令：put 'Score','95001','score:Math','88'
  82. 			     //deleteRow("platform", PId, "PId", "");
  83. 			     //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）
  84. 			     //等价命令：put 'Score','95001','score:English','85'
  85. 			     //deleteRow("platform", PId, "Pnum", "");
  86. 			     //deleteRow("platform", PId, "approval_num", "");
  87. 			     //deleteRow("platform", PId, "techField", "");
  88. 			    // deleteRow("platform", PId, "PLevel", "");
  89. 			     //deleteRow("platform", PId, "city", "");
  90. 			     //deleteRow("platform", PId, "JJJGJ", "");
  91. 			     //deleteRow("platform", PId, "Pform", "");
  92. 			     //deleteRow("platform", PId, "faren_type", "");
  93. 			     //deleteRow("platform", PId, "unite", "");
  94. 	     }catch (IOException e) {
  95. 	            e.printStackTrace();
  96. 	     }
  97. 	    System.out.println("删除成功");
  98. 		response.setCharacterEncoding("GBK");
  99. 		PrintWriter out = response.getWriter();
  100. 		out.println("<script language='javaScript'>alert(\"删除成功!\");</script>");
  101. 		response.setHeader("refresh","1;url = /HBase/index.jsp");
  102.  
  103. 	    //request.getRequestDispatcher("/index1.jsp").forward(request,response);
  104. 	}
  105. 	 public static void deleteRow(String tableName, String row) throws IOException {
  106. 	        init1();
  107. 	        Table table = connection.getTable(TableName.valueOf(tableName));
  108. 	        Delete delete=new Delete(row.getBytes());
  109. 	        table.delete(delete);
  110. 	        System.out.println(6666);
  111. 	        table.close();
  112. 	        close();
  113. 	    }
  114.  
  115. }

　　

  1. package servlet;
  2.  
  3. import java.io.IOException;
  4. import java.io.PrintWriter;
  5. import java.sql.Date;
  6. import java.text.ParseException;
  7. import java.text.SimpleDateFormat;
  8. import java.util.ArrayList;
  9. import java.util.List;
  10.  
  11. import javax.servlet.ServletException;
  12. import javax.servlet.annotation.WebServlet;
  13. import javax.servlet.http.HttpServlet;
  14. import javax.servlet.http.HttpServletRequest;
  15. import javax.servlet.http.HttpServletResponse;
  16. import javax.servlet.http.HttpSession;
  17.  
  18. import org.apache.hadoop.conf.Configuration;
  19. import org.apache.hadoop.fs.*;
  20. import org.apache.hadoop.hbase.Cell;
  21. import org.apache.hadoop.hbase.CellUtil;
  22. import org.apache.hadoop.hbase.HBaseConfiguration;
  23. import org.apache.hadoop.hbase.HColumnDescriptor;
  24. import org.apache.hadoop.hbase.HTableDescriptor;
  25. import org.apache.hadoop.hbase.TableName;
  26. import org.apache.hadoop.hbase.client.*;
  27. import org.apache.hadoop.hbase.util.Bytes;
  28. import org.apache.hadoop.io.IOUtils;
  29. import org.apache.hadoop.util.Progressable;
  30.  
  31. import dao.PlatformDao;
  32. import model.platform;
  33.  
  34. @SuppressWarnings("serial")
  35. public class ModifyServlet extends HttpServlet {
  36.  
  37. 	 public static Configuration configuration;
  38. 	 public static Connection connection;
  39. 	 public static Admin admin;
  40. 	 public static long ts;
  41.  
  42. 	 //建立连接
  43.     public static void init1(){
  44.         configuration  = HBaseConfiguration.create();
  45.         configuration.set("hbase.zookeeper.quorum","192.168.146.128");
  46.         try{
  47.             connection = ConnectionFactory.createConnection(configuration);
  48.             admin = connection.getAdmin();
  49.         }catch (IOException e){
  50.             e.printStackTrace();
  51.         }
  52.     }
  53.     //关闭连接
  54.     public static void close(){
  55.         try{
  56.             if(admin != null){
  57.                 admin.close();
  58.             }
  59.             if(null != connection){
  60.                 connection.close();
  61.             }
  62.         }catch (IOException e){
  63.             e.printStackTrace();
  64.         }
  65.     }
  66.  
  67. 	@Override
  68. 	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  69. 		// TODO Auto-generated method stub
  70.  
  71. 	}
  72.  
  73. 	@Override
  74. 	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  75. 		// TODO Auto-generated method stub
  76.  
  77. 		request.setCharacterEncoding("utf-8");
  78. 		/**平台锟斤拷锟斤拷锟斤拷息*/
  79. 		String PId = request.getParameter("PId");
  80. 		//String condition = request.getParameter("Condition");
  81. 	    String content = request.getParameter("content");
  82. 	    System.out.println(PId);
  83. 	    //System.out.println(condition);
  84. 		System.out.println(content);
  85.  
  86. 	    try {
  87. 	             //等价命令：put 'Score','95001','sname','Mary'
  88. 			     //deleteRow("platform", PId);
  89. 			     //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）
  90. 			     //等价命令：put 'Score','95001','score:Math','88'
  91. 			     //deleteRow("platform", PId, "PId", "");
  92. 			     //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）
  93. 			     //等价命令：put 'Score','95001','score:English','85'
  94. 			     //deleteRow("platform", PId, "Pnum", "");
  95. 			     //deleteRow("platform", PId, "approval_num", "");
  96. 			     //deleteRow("platform", PId, "techField", "");
  97. 			    // deleteRow("platform", PId, "PLevel", "");
  98. 			     //deleteRow("platform", PId, "city", "");
  99. 			     //deleteRow("platform", PId, "JJJGJ", "");
  100. 			     //deleteRow("platform", PId, "Pform", "");
  101. 			     //deleteRow("platform", PId, "faren_type", "");
  102. 			     //deleteRow("platform", PId, "unite", "");
  103.  
  104. 	    	insertRow("platform",PId,"approval_num","",content);
  105. 	     }catch (IOException e) {
  106. 	            e.printStackTrace();
  107. 	     }
  108. 		response.setCharacterEncoding("GBK");
  109. 		PrintWriter out = response.getWriter();
  110. 		out.println("<script language='javaScript'>alert(\"修改成功!\");</script>");
  111. 		response.setHeader("refresh","1;url = /HBase/index.jsp");
  112.  
  113. 	    //request.getRequestDispatcher("/index1.jsp").forward(request,response);
  114. 	}
  115. 	/**
  116.      * 向某一行的某一列插入数据
  117.      * @param tableName 表名
  118.      * @param rowKey 行键
  119.      * @param colFamily 列族名
  120.      * @param col 列名（如果其列族下没有子列，此参数可为空）
  121.      * @param val 值
  122.      * @throws IOException
  123.      */
  124.  
  125. 	public static void insertRow(String tableName,String rowKey,String colFamily,String col,String val) throws IOException {
  126.         init1();
  127.         System.out.println("1"+rowKey);
  128.         System.out.println("2"+colFamily);
  129.         System.out.println("3"+col);
  130.         System.out.println("4"+val);
  131.         Table table = connection.getTable(TableName.valueOf(tableName));
  132.         Put put = new Put(rowKey.getBytes());
  133.         put.addColumn(colFamily.getBytes(), col.getBytes(), val.getBytes());
  134.         table.put(put);
  135.         table.close();
  136.         close();
  137.     }
  138.  
  139. }

　　

  1. package servlet;
  2.  
  3. import java.io.IOException;
  4. import java.io.PrintWriter;
  5. import java.sql.Date;
  6. import java.text.ParseException;
  7. import java.text.SimpleDateFormat;
  8. import java.util.ArrayList;
  9. import java.util.List;
  10.  
  11. import javax.servlet.ServletException;
  12. import javax.servlet.annotation.WebServlet;
  13. import javax.servlet.http.HttpServlet;
  14. import javax.servlet.http.HttpServletRequest;
  15. import javax.servlet.http.HttpServletResponse;
  16. import javax.servlet.http.HttpSession;
  17.  
  18. import org.apache.hadoop.conf.Configuration;
  19. import org.apache.hadoop.fs.*;
  20. import org.apache.hadoop.hbase.Cell;
  21. import org.apache.hadoop.hbase.CellUtil;
  22. import org.apache.hadoop.hbase.HBaseConfiguration;
  23. import org.apache.hadoop.hbase.HColumnDescriptor;
  24. import org.apache.hadoop.hbase.HTableDescriptor;
  25. import org.apache.hadoop.hbase.TableName;
  26. import org.apache.hadoop.hbase.client.*;
  27. import org.apache.hadoop.hbase.util.Bytes;
  28. import org.apache.hadoop.io.IOUtils;
  29. import org.apache.hadoop.util.Progressable;
  30.  
  31. import dao.PlatformDao;
  32. import model.platform;
  33.  
  34. @SuppressWarnings("serial")
  35. public class SearchServlet extends HttpServlet {
  36.  
  37. 	 public static Configuration configuration;
  38. 	 public static Connection connection;
  39. 	 public static Admin admin;
  40. 	 public static long ts;
  41.  
  42. 	@Override
  43. 	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  44. 		// TODO Auto-generated method stub
  45.  
  46. 	}
  47.  
  48. 	@Override
  49. 	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  50. 		// TODO Auto-generated method stub
  51. 		request.setCharacterEncoding("utf-8");
  52. 	    String PId = request.getParameter("PId");
  53. 	    platform platform = new platform();
  54. 	    PlatformDao platformDao = new PlatformDao();
  55. 	    platform = platformDao.get("platform", PId);
  56.  
  57. 	    request.setAttribute("PId", platform.getPId());
  58. 	    request.setAttribute("Pname", platform.getPname());
  59. 	    request.setAttribute("Pnum", platform.getPnum());
  60. 	    request.setAttribute("approval_num", platform.getApproval_num());
  61. 	    request.setAttribute("techField", platform.getTechField());
  62. 	    request.setAttribute("PLevel", platform.getTechField());
  63. 	    request.setAttribute("city", platform.getCity());
  64. 	    request.setAttribute("JJJGJ", platform.getJJJGJ());
  65. 	    request.setAttribute("Pform", platform.getPform());
  66. 	    request.setAttribute("faren_type", platform.getFaren_type());
  67. 	    request.setAttribute("unite", platform.getUnite());
  68. 	    System.out.println("平台编号："+platform.getPId());
  69.  
  70. 	    request.getRequestDispatcher("/show.jsp").forward(request,response);
  71.  
  72. 	}
  73.  
  74. }

　　

jsp

modify.jsp

  1. <%@ page language="java" contentType="text/html; charset=utf-8"
  2.     pageEncoding="utf-8"%>
  3. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  4. <html>
  5. <head>
  6. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  7. <title>修改内容</title>
  8. </head>
  9. <body>
  10. 	<form action="servlet/ModifyServlet" method="post">
  11. 	请选择要修改的平台编号：<input type="text" name="PId">
  12. 	请选择要修改的内容：<br>
  13. 	<select name="Condition">
  14. 		<option value="Approval_num">批准文号</option>
  15. 		<option value="PLevel">平台级别</option>
  16. 	</select>
  17. 	<input type="text" name="content">
  18. 	<button type="submit">提交</button>
  19. 	</form>
  20. </body>
  21. </html>

　　Fill_in.jsp

  1. <%@ page language="java" contentType="text/html; charset=UTF-8"
  2.     pageEncoding="UTF-8"%>
  3. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  4. <html>
  5. <head>
  6. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  7. <title>Insert title here</title>
  8. </head>
  9. <body>
  10. <form action="servlet/SearchServlet" method="post">
  11. 	<div>
  12. 		<input type="text" name="PId">
  13. 		<button type="submit">提交</button>
  14. 	</div>
  15. </form>
  16.  
  17. </body>
  18. </html>

　　show.jsp

  1. <%@ page language="java" contentType="text/html; charset=UTF-8"
  2.     pageEncoding="UTF-8"%>
  3. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  4. <html>
  5. <head>
  6. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  7. <title>Insert title here</title>
  8. </head>
  9. <body>
  10. <% String PId = (String)request.getAttribute("PId");%>
  11. <% String Pname = (String)request.getAttribute("Pname");%>
  12. <% String Pnum = (String)request.getAttribute("Pnum");%>
  13. <% String approval_num = (String)request.getAttribute("approval_num");%>
  14. <% String techField = (String)request.getAttribute("techField");%>
  15. <% String PLevel = (String)request.getAttribute("PLevel");%>
  16. <% String city = (String)request.getAttribute("city");%>
  17. <% String JJJGJ = (String)request.getAttribute("JJJGJ");%>
  18. <% String Pform = (String)request.getAttribute("Pform");%>
  19. <% String faren_type = (String)request.getAttribute("faren_type");%>
  20. <% String unite = (String)request.getAttribute("unite");%>
  21.  
  22. <%="平台编号为："+PId %> <br><br>
  23. <%="平台名称为："+Pname %> <br><br>
  24. <%="批准年月为："+Pnum %> <br><br>
  25. <%="批准文号为："+approval_num %> <br><br>
  26. <%="平台编号为："+techField %> <br><br>
  27. <%="平台编号为："+PLevel %> <br><br>
  28. <%="平台编号为："+city %> <br><br>
  29. <%="平台编号为："+JJJGJ %> <br><br>
  30. <%="平台编号为："+Pform %> <br><br>
  31. <%="平台编号为："+faren_type %> <br><br>
  32. <%="平台编号为："+unite %> <br><br>
  33. <button type="submit"><a href="index.jsp">回到首页</a></button>
  34. </body>
  35. </html>

　　delete.jsp

  1. <%@ page language="java" contentType="text/html; charset=UTF-8"
  2.     pageEncoding="UTF-8"%>
  3. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
  4. <html>
  5. <head>
  6. <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  7. <title>Insert title here</title>
  8. </head>
  9. <body>
  10. <form action="servlet/DeleteServlet" method="post">
  11. 	<div>
  12. 		<input type="text" name="PId">
  13. 		<button type="submit">提交</button>
  14. 	</div>
  15. </form>
  16.  
  17. </body>
  18. </html>

　　

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