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java查询hbase

2016-04-07 14:09 609 查看
/**
* 根据表名,列,列的值获取相关表的字段信息

* @param tableName 表名
* @param search_quilifier 查询列
* @param quilifier 目标显示列
* @param column_value 参数值
* @return
* @throws IOException
*/
public JSONArray getTableinfoByColumnValue1(String tableName, List<String> search_quilifier,
List quilifier, String column_value) throws IOException {
tableName = tableName.toUpperCase();
HTable table = getInfoTable(tableName);
List<Filter> filters = new ArrayList<Filter>();
for (String search : search_quilifier) {
SingleColumnValueFilter filter = new SingleColumnValueFilter(Bytes.toBytes("cf"),

Bytes.toBytes(search), CompareFilter.CompareOp.EQUAL, new BinaryComparator(
Bytes.toBytes(column_value)));

filter.setFilterIfMissing(true);//如果没有改列,是否过滤该数据,true过滤即不显示,false显示
filters.add(filter);
}

FilterList filterlist = new FilterList(Operator.MUST_PASS_ONE, filters);
Scan scan = new Scan();
scan.setFilter(filterlist);
ResultScanner scanner = table.getScanner(scan);

JSONArray ja = new JSONArray();
for (Result result : scanner) {
Get get = new Get(Bytes.toBytes(Bytes.toString(result.getRow())));
for (int i = 0; i < quilifier.size(); i++) {
get.addColumn(Bytes.toBytes("cf"), Bytes.toBytes(quilifier.get(i).toString()));
}
Result result_new = table.get(get);
JSONArray result_temp = printResult1(result_new);
ja.addAll(result_temp);
}
scanner.close();
return ja;
}
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