将ResultSet转为List

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public static List resultSetToList(ResultSet rs) throws java.sql.SQLException {

if (rs == null)

return Collections.EMPTY_LIST;

ResultSetMetaData md = rs.getMetaData(); //得到结果集(rs)的结构信息，比如字段数、字段名等

int columnCount = md.getColumnCount(); //返回此 ResultSet 对象中的列数

List list = new ArrayList();

Map rowData = new HashMap();

while (rs.next()) {

rowData = new HashMap(columnCount);

for (int i = 1; i <= columnCount; i++) {

rowData.put(md.getColumnName(i), rs.getObject(i));

}

list.add(rowData);

System.out.println("list:" + list.toString());

}

return list;

}

接着在其他方法里处理返回的List

List ls = resultSetToList(rs);

Iterator it = ls.iterator();

while(it.hasNext()) {

Map hm = (Map)it.next();

System.out.println(hm.get("字段名大写"));

}

分类: Java

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