Hbase的JavaAPI操作_无法定位登录配置问题解决

Hbase用Myeclipse调用JavaApi接口进行操作的时候遇到了如下问题：

该问题经分析定位为Hbase的配置文件为 conf 下面未添加 backup-master 

保证Hbase集群启动成功：

http://hadoop1:60010/master-status

 

执行Java程序进行JavaAPI操作：

 代码Coding：

public class HbaseDemo {
 
public static void main(String[] args) throws IOException {
String tableName = "hbase_tb";
String columnFamily = "cf";
 
HbaseDemo.create(tableName, columnFamily);
 
// HbaseDemo.put(tableName, "row1", columnFamily, "cl1", "data");
// HbaseDemo.get(tableName, "row1");
// HbaseDemo.scan(tableName);
HbaseDemo.delete(tableName);
}
 
// hbase操作必备
private static Configuration getConfiguration() {
Configuration conf = HBaseConfiguration.create();
conf.set("hbase.rootdir", "hdfs://hadoop1:9000/hbase");
// 使用eclipse时必须添加这个，否则无法定位
conf.set("hbase.zookeeper.quorum", "hadoop1");
return conf;
}
 
// 创建一张表
public static void create(String tableName, String columnFamily)
throws IOException {
HBaseAdmin admin = new HBaseAdmin(getConfiguration());
if (admin.tableExists(tableName)) {
System.out.println("table exists!");
} else {
HTableDescriptor tableDesc = new HTableDescriptor(tableName);
tableDesc.addFamily(new HColumnDescriptor(columnFamily));
admin.createTable(tableDesc);
System.out.println("create table success!");
}
}
 
// 添加一条记录
public static void put(String tableName, String row, String columnFamily,
String column, String data) throws IOException {
HTable table = new HTable(getConfiguration(), tableName);
Put p1 = new Put(Bytes.toBytes(row));
p1.add(Bytes.toBytes(columnFamily), Bytes.toBytes(column), Bytes
.toBytes(data));
table.put(p1);
System.out.println("put'" + row + "'," + columnFamily + ":" + column
+ "','" + data + "'");
}
 
// 读取一条记录
public static void get(String tableName, String row) throws IOException {
HTable table = new HTable(getConfiguration(), tableName);
Get get = new Get(Bytes.toBytes(row));
Result result = table.get(get);
System.out.println("Get: " + result);
}
 
// 显示所有数据
public static void scan(String tableName) throws IOException {
HTable table = new HTable(getConfiguration(), tableName);
Scan scan = new Scan();
ResultScanner scanner = table.getScanner(scan);
for (Result result : scanner) {
System.out.println("Scan: " + result);
}
}
 
// 删除表
public static void delete(String tableName) throws IOException {
HBaseAdmin admin = new HBaseAdmin(getConfiguration());
if (admin.tableExists(tableName)) {
try {
admin.disableTable(tableName);
admin.deleteTable(tableName);
} catch (IOException e) {
e.printStackTrace();
System.out.println("Delete " + tableName + " 失败");
}
}
System.out.println("Delete " + tableName + " 成功");
}
 
}