将手机上网日志文件批量导入到Hbase中，操作步骤：

1、将日志文件(请下载附件)上传到HDFS中，利用hadoop的操作命令上传：hadoop  fs -put input  /

2、创建Hbase表，通过Java操作

Java代码  

1. package com.jiewen.hbase;  
2.   
3. import java.io.IOException;  
4.   
5. import org.apache.hadoop.conf.Configuration;  
6. import org.apache.hadoop.hbase.HBaseConfiguration;  
7. import org.apache.hadoop.hbase.HColumnDescriptor;  
8. import org.apache.hadoop.hbase.HTableDescriptor;  
9. import org.apache.hadoop.hbase.client.Get;  
10. import org.apache.hadoop.hbase.client.HBaseAdmin;  
11. import org.apache.hadoop.hbase.client.HTable;  
12. import org.apache.hadoop.hbase.client.Put;  
13. import org.apache.hadoop.hbase.client.Result;  
14. import org.apache.hadoop.hbase.client.ResultScanner;  
15. import org.apache.hadoop.hbase.client.Scan;  
16. import org.apache.hadoop.hbase.util.Bytes;  
17.   
18. public class HbaseDemo {  
19.   
20.     public static void main(String[] args) throws IOException {  
21.         String tableName = "wlan_log";  
22.         String columnFamily = "cf";  
23.   
24.         HbaseDemo.create(tableName, columnFamily);  
25.   
26.         // HbaseDemo.put(tableName, "row1", columnFamily, "cl1", "data");  
27.         // HbaseDemo.get(tableName, "row1");  
28.         // HbaseDemo.scan(tableName);  
29.         // HbaseDemo.delete(tableName);  
30.     }  
31.   
32.     // hbase操作必备  
33.     private static Configuration getConfiguration() {  
34.         Configuration conf = HBaseConfiguration.create();  
35.         conf.set("hbase.rootdir", "hdfs://hadoop1:9000/hbase");  
36.         // 使用eclipse时必须添加这个，否则无法定位  
37.         conf.set("hbase.zookeeper.quorum", "hadoop1");  
38.         return conf;  
39.     }  
40.   
41.     // 创建一张表  
42.     public static void create(String tableName, String columnFamily)  
43.             throws IOException {  
44.         HBaseAdmin admin = new HBaseAdmin(getConfiguration());  
45.         if (admin.tableExists(tableName)) {  
46.             System.out.println("table exists!");  
47.         } else {  
48.             HTableDescriptor tableDesc = new HTableDescriptor(tableName);  
49.             tableDesc.addFamily(new HColumnDescriptor(columnFamily));  
50.             admin.createTable(tableDesc);  
51.             System.out.println("create table success!");  
52.         }  
53.     }  
54.   
55.     // 添加一条记录  
56.     public static void put(String tableName, String row, String columnFamily,  
57.             String column, String data) throws IOException {  
58.         HTable table = new HTable(getConfiguration(), tableName);  
59.         Put p1 = new Put(Bytes.toBytes(row));  
60.         p1.add(Bytes.toBytes(columnFamily), Bytes.toBytes(column), Bytes  
61.                 .toBytes(data));  
62.         table.put(p1);  
63.         System.out.println("put‘" + row + "‘," + columnFamily + ":" + column  
64.                 + "‘,‘" + data + "‘");  
65.     }  
66.   
67.     // 读取一条记录  
68.     public static void get(String tableName, String row) throws IOException {  
69.         HTable table = new HTable(getConfiguration(), tableName);  
70.         Get get = new Get(Bytes.toBytes(row));  
71.         Result result = table.get(get);  
72.         System.out.println("Get: " + result);  
73.     }  
74.   
75.     // 显示所有数据  
76.     public static void scan(String tableName) throws IOException {  
77.         HTable table = new HTable(getConfiguration(), tableName);  
78.         Scan scan = new Scan();  
79.         ResultScanner scanner = table.getScanner(scan);  
80.         for (Result result : scanner) {  
81.             System.out.println("Scan: " + result);  
82.         }  
83.     }  
84.   
85.     // 删除表  
86.     public static void delete(String tableName) throws IOException {  
87.         HBaseAdmin admin = new HBaseAdmin(getConfiguration());  
88.         if (admin.tableExists(tableName)) {  
89.             try {  
90.                 admin.disableTable(tableName);  
91.                 admin.deleteTable(tableName);  
92.             } catch (IOException e) {  
93.                 e.printStackTrace();  
94.                 System.out.println("Delete " + tableName + " 失败");  
95.             }  
96.         }  
97.         System.out.println("Delete " + tableName + " 成功");  
98.     }  
99.   
100. }  

3、将日志文件导入Hbase表wlan_log中：

Java代码  

1. import java.text.SimpleDateFormat;  
2. import java.util.Date;  
3.   
4. import org.apache.hadoop.conf.Configuration;  
5. import org.apache.hadoop.hbase.client.Put;  
6. import org.apache.hadoop.hbase.mapreduce.TableOutputFormat;  
7. import org.apache.hadoop.hbase.mapreduce.TableReducer;  
8. import org.apache.hadoop.hbase.util.Bytes;  
9. import org.apache.hadoop.io.LongWritable;  
10. import org.apache.hadoop.io.NullWritable;  
11. import org.apache.hadoop.io.Text;  
12. import org.apache.hadoop.mapreduce.Counter;  
13. import org.apache.hadoop.mapreduce.Job;  
14. import org.apache.hadoop.mapreduce.Mapper;  
15. import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;  
16. import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;  
17.   
18. public class HbaseBatchImport {  
19.   
20.     public static void main(String[] args) throws Exception {  
21.         final Configuration configuration = new Configuration();  
22.         // 设置zookeeper  
23.         configuration.set("hbase.zookeeper.quorum", "hadoop1");  
24.   
25.         // 设置hbase表名称  
26.         configuration.set(TableOutputFormat.OUTPUT_TABLE, "wlan_log");  
27.   
28.         // 将该值改大，防止hbase超时退出  
29.         configuration.set("dfs.socket.timeout", "180000");  
30.   
31.         final Job job = new Job(configuration, "HBaseBatchImport");  
32.   
33.         job.setMapperClass(BatchImportMapper.class);  
34.         job.setReducerClass(BatchImportReducer.class);  
35.         // 设置map的输出，不设置reduce的输出类型  
36.         job.setMapOutputKeyClass(LongWritable.class);  
37.         job.setMapOutputValueClass(Text.class);  
38.   
39.         job.setInputFormatClass(TextInputFormat.class);  
40.         // 不再设置输出路径，而是设置输出格式类型  
41.         job.setOutputFormatClass(TableOutputFormat.class);  
42.   
43.         FileInputFormat.setInputPaths(job, "hdfs://hadoop1:9000/input");  
44.   
45.         job.waitForCompletion(true);  
46.     }  
47.   
48.     static class BatchImportMapper extends  
49.             Mapper<LongWritable, Text, LongWritable, Text> {  
50.         SimpleDateFormat dateformat1 = new SimpleDateFormat("yyyyMMddHHmmss");  
51.         Text v2 = new Text();  
52.   
53.         protected void map(LongWritable key, Text value, Context context)  
54.                 throws java.io.IOException, InterruptedException {  
55.             final String[] splited = value.toString().split("\t");  
56.             try {  
57.                 final Date date = new Date(Long.parseLong(splited[0].trim()));  
58.                 final String dateFormat = dateformat1.format(date);  
59.                 String rowKey = splited[1] + ":" + dateFormat;  
60.                 v2.set(rowKey + "\t" + value.toString());  
61.                 context.write(key, v2);  
62.             } catch (NumberFormatException e) {  
63.                 final Counter counter = context.getCounter("BatchImport",  
64.                         "ErrorFormat");  
65.                 counter.increment(1L);  
66.                 System.out.println("出错了" + splited[0] + " " + e.getMessage());  
67.             }  
68.         };  
69.     }  
70.   
71.     static class BatchImportReducer extends  
72.             TableReducer<LongWritable, Text, NullWritable> {  
73.         protected void reduce(LongWritable key,  
74.                 java.lang.Iterable<Text> values, Context context)  
75.                 throws java.io.IOException, InterruptedException {  
76.             for (Text text : values) {  
77.                 final String[] splited = text.toString().split("\t");  
78.   
79.                 final Put put = new Put(Bytes.toBytes(splited[0]));  
80.                 put.add(Bytes.toBytes("cf"), Bytes.toBytes("date"), Bytes  
81.                         .toBytes(splited[1]));  
82.                 // 省略其他字段，调用put.add(....)即可  
83.                 context.write(NullWritable.get(), put);  
84.             }  
85.         };  
86.     }  
87.   
88. }  

 4、查看导入结果：