55 lines
1.4 KiB
Java
55 lines
1.4 KiB
Java
package ink.wgink.util.jdbc;
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import java.sql.ResultSet;
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import java.sql.ResultSetMetaData;
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import java.util.*;
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/**
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* @ClassName: JdbcUtil
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* @Description: Jdbc
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* @Author: WangGeng
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* @Date: 2019-07-14 18:53
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* @Version: 1.0
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**/
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public class JdbcUtil {
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/**
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* 获取单条信息
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*
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* @param resultSet
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* @return
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*/
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public static Map<String, Object> getResult(ResultSet resultSet) {
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List<Map<String, Object>> resultList = listResult(resultSet);
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if (resultList.isEmpty()) {
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return null;
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}
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return resultList.get(0);
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}
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/**
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* 查询列表
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*
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* @param resultSet
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* @return
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*/
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public static List<Map<String, Object>> listResult(ResultSet resultSet) {
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List<Map<String, Object>> resultList = new ArrayList<>();
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try {
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ResultSetMetaData resultSetMetaData = resultSet.getMetaData();
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int columnCount = resultSetMetaData.getColumnCount();
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while (resultSet.next()) {
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Map<String, Object> row = new LinkedHashMap<>(16);
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for (int i = 0; i < columnCount; i++) {
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row.put(resultSetMetaData.getColumnLabel(i + 1), resultSet.getObject(i + 1));
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}
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resultList.add(row);
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}
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} catch (Exception e) {
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return new ArrayList<>();
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}
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return resultList;
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}
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}
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