没有加join是无能执行多线程的
代码如下
@Test
public void multInsert()throws Exception{
final Connection conn =HbaseUtils.conn();
final String tableName = “ns1:t2”;
Thread t1 =new Thread(“thread1”){
public void run() {
String inset = inset(0, 300, tableName,conn);
System.out.println(inset);
}
};
Thread t2 =new Thread(“thread2”){
public void run() {
inset(300,600,tableName,conn);
}
};
Thread t3 = new Thread(“thread3”) {
public void run() {
inset(600, 1000, tableName, conn);
}
};
t1.start();
t2.start();
t3.start();
t1.join();
t2.join();
t3.join();
}

//百万插入
private String inset(int start,int end,String tableName,Connection conn ) {
    try {
        TableName tname = TableName.valueOf(tableName);
        HTable table = (HTable) conn.getTable(tname);

        DecimalFormat df = new DecimalFormat("0000");
        table.setAutoFlush(false);
        for (int j = start; j < end; j++) {
            byte[] rowkey = Bytes.toBytes("row" + df.format(j));

            Put put = new Put(rowkey);
            put.addColumn(Bytes.toBytes("f1"), Bytes.toBytes("id"), Bytes.toBytes(end - 1));
            put.addColumn(Bytes.toBytes("f1"), Bytes.toBytes("name"), Bytes.toBytes("name" + j));
            table.put(put);
            if (j % 2000 == 0) {
                table.flushCommits();
            }
        }
        table.flushCommits();
    }catch(Exception e){
        log.error("插入异常：{}",e);
    }
    return "完成："+(end-start);
}