图形化管理工具:sqlite developer
创建数据库:sqlite3 test.db
创建表格:
create table employee(
id integer primary key autoincrement,
name varchar(20),
pwd varchar(20),
age integer
);
插入数据:
insert into employee(name,pwd,age) values('zhaodeng','1234','25');
insert into employee(name,age) values('Tom','30');
查询显示数据
select * from employee;
cmd操作展示:
Microsoft Windows [版本 6.1.7601]版权所有 (c) 2009 Microsoft Corporation。保留所有权利。
C:\Users\ZhaoD>d:
D:\>cd D:\Jdk-eclipsejee-tomcat-ant\sqlite
D:\Jdk-eclipsejee-tomcat-ant\sqlite>sqlite3 test.db
sqlite version 3.11.1 2016-03-03 16:17:53
Enter ".help" for usage hints.
sqlite> create table employee(
...> id integer primary key autoincrement,
...> name varchar(20),
...> pwd varchar(20),
...> age integer
...> );
sqlite> insert into employee(name,'25');
sqlite> insert into employee(name,'30');
sqlite> select * from employee;
1|zhaodeng|1234|25
2|Tom|1234|30
sqlite>
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package bo; import java.sql.Statement; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.sqlException; import java.util.ArrayList; import java.util.List; public class DbTEst { public static void main(String[] args) { // TODO Auto-generated method stub List<Employee> employees = fetchData(); for (Employee e : employees) { System.out.println(e.toString()); } Employee employee = login("Tom","1234"); if(employee!=null){ System.out.println("登录成功,欢迎"+employee.getName()); System.out.println(employee.toString()); }else{ System.out.println("登录失败"); } } private static Employee login(String name,String pwd) { Employee employee = null; Connection connection = null; try { Class.forName("org.sqlite.JDBC"); connection = DriverManager.getConnection("jdbc:sqlite:D:/Jdk-eclipsejee-tomcat-ant/sqlite/test.db"); String string = "select * from employee where name =? and pwd =?"; PreparedStatement statement = (PreparedStatement) connection.prepareStatement(string); statement.setString(1,name); statement.setString(2,pwd); ResultSet resultSet = statement.executeQuery(); if (resultSet.next()) { employee = new Employee(resultSet.getInt(1),resultSet.getString(2),resultSet.getString(3),resultSet.getInt(4)); } } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (sqlException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } finally { if (connection != null) { try { connection.close(); } catch (sqlException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } return employee; } private static List<Employee> fetchData() { List<Employee> employees = new ArrayList<Employee>(); Employee employee = null; Connection connection = null; try { Class.forName("org.sqlite.JDBC"); connection = DriverManager.getConnection("jdbc:sqlite:D:/Jdk-eclipsejee-tomcat-ant/sqlite/test.db"); Statement statement = (Statement) connection.createStatement(); String string = "select * from employee"; ResultSet rSet = statement.executeQuery(string); while (rSet.next()) { employee = new Employee(rSet.getInt(1),rSet.getString(2),rSet.getString(3),rSet.getInt(4)); employees.add(employee); } } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (sqlException e) { // TODO: handle exception e.printStackTrace(); } finally { if (connection != null) { try { connection.close(); } catch (sqlException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } return employees; } }原文链接:https://www.f2er.com/sqlite/199005.html