本文實(shí)例講述了java實(shí)現(xiàn)將結(jié)果集封裝到List中的方法。分享給大家供大家參考，具體如下：
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import java.sql.Connection;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;import java.util.ArrayList;import java.util.List;public class TestResultSet { public static List query(){ Connection conn = new ConnectionUtil().openConnection(); try { Statement stmt = conn.createStatement(); String sql = "select id,name,email from customertbl"; ResultSet rs = stmt.executeQuery(sql); //將結(jié)果集封裝到List中 List list = new ArrayList(); while(rs.next()){ // 可以根據(jù)列名稱也可以根據(jù)列索引 int id = rs.getInt(1); String name = rs.getString("name"); String email = rs.getString("email"); System.out.println(id+":"+name+":"+email); Customer c = new Customer(); c.setId(id); c.setName(name); c.setEmail(email); //將對(duì)象存放到list容器中 list.add(c); } return list; } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ try { conn.close(); } catch (SQLException e) { conn = null; e.printStackTrace(); } } return null; }} |
希望本文所述對(duì)大家java程序設(shè)計(jì)有所幫助。
