java实现hbase表创建、数据插入、删除表

近日查看了相关资料后，梳理了一下用java实现hbase的表创建、数据插入、删除表，代码如下：

1、需要的jar包：

commons-codec-1.4.jar

commons-logging-1.0.4.jar

hadoop-0.20.2-core.jar

hbase-0.20.6.jar

log4j-1.2.15.jar

zookeeper-3.2.2.jar

2、代码：

[java:nogutter] view plain copy

1. packageorg.myhbase;
3. importjava.io.IOException;
5. importorg.apache.hadoop.conf.Configuration;
6. importorg.apache.hadoop.hbase.HBaseConfiguration;
7. importorg.apache.hadoop.hbase.HColumnDescriptor;
8. importorg.apache.hadoop.hbase.HTableDescriptor;
9. importorg.apache.hadoop.hbase.KeyValue;
10. importorg.apache.hadoop.hbase.client.HBaseAdmin;
11. importorg.apache.hadoop.hbase.client.HTable;
12. importorg.apache.hadoop.hbase.client.Result;
13. importorg.apache.hadoop.hbase.client.ResultScanner;
14. importorg.apache.hadoop.hbase.client.Scan;
15. importorg.apache.hadoop.hbase.io.BatchUpdate;
17. publicclassHBaseBasic02{
18. staticHBaseConfigurationhbaseConfig=null;
19. static{
20. Configurationconfig=newConfiguration();
21. config.set("hbase.zookeeper.quorum","192.168.10.149,192.168.10.44,192.168.10.49");
22. config.set("hbase.zookeeper.property.clientPort","2181");
23. hbaseConfig=newHBaseConfiguration(config);
24. }
26. /**
27. *创建一张表
28. *@throwsIOException
29. */
30. publicstaticvoidcreateTable(Stringtablename)throwsIOException{
31. HBaseAdminadmin=newHBaseAdmin(hbaseConfig);
32. if(admin.tableExists(tablename)){
33. System.out.println("tableExists!!!");
34. }else{
35. HTableDescriptortableDesc=newHTableDescriptor(tablename);
36. tableDesc.addFamily(newHColumnDescriptor("name:"));
37. admin.createTable(tableDesc);
38. System.out.println("createtableok.");
39. }
40. }
42. /**
43. *删除一张表
44. *@throwsIOException
45. */
46. publicstaticvoiddropTable(Stringtablename)throwsIOException{
47. HBaseAdminadmin=newHBaseAdmin(hbaseConfig);
48. admin.disableTable(tablename);
49. admin.deleteTable(tablename);
50. System.out.println("droptableok.");
51. }
54. /**
55. *添加一条数据
56. *@throwsIOException
57. */
58. publicstaticvoidaddData(Stringtablename)throwsIOException{
59. HTabletable=newHTable(hbaseConfig,tablename);
60. BatchUpdateupdate=newBatchUpdate("Huangyi");
61. update.put("name:java","http://www.sun.com".getBytes());
62. table.commit(update);
63. System.out.println("adddataok.");
64. }
67. /**
68. *显示所有数据
69. *@throwsIOException
70. */
71. publicstaticvoidgetAllData(Stringtablename)throwsIOException{
72. HTabletable=newHTable(hbaseConfig,tablename);
73. Scans=newScan();
74. ResultScannerrs=table.getScanner(s);
75. for(Resultr:rs){
76. for(KeyValuekv:r.raw()){
77. System.out.println("rowkey:"+newString(kv.getRow()));
78. System.out.println(newString(kv.getColumn())+"="+newString(kv.getValue()));
79. }
80. }
81. }
83. publicstaticvoidmain(String[]args)throwsIOException{
84. Stringtablename="table_1";
85. HBaseBasic02.createTable(tablename);
86. HBaseBasic02.addData(tablename);
87. HBaseBasic02.getAllData(tablename);
88. HBaseBasic02.dropTable(tablename);
89. }
92. }