1.向数据库中创建表
public void addTable( String dbpath)
{
//创建表单的sql语句
String createtablesql= " CREATE TABLE T_AFAF_AREA(PID TEXT,STDNAME TEXT) ";
//这里的TEXT 类型根据需要改变
try{
Class.forName("org.sqlite.JDBC");
Connection conn = DriverManager.getConnection("jdbc:sqlite:"+dbpath);
Statement stmt = conn.createStatement();
//巡检表
stmt.executeUpdate(createtablesql);
}catch(Exception e)
{
e.printStackTrace();
}
}
2.从 .db 文件中删除表
这里只贴出来语句其他都一样
//判断巡检表是否存在 存在 则删除
String deletetablesql = " drop table if exists T_EXAMINEDATA ";
3 . 从 .db 文件中读取信息
public ListqueryTStreetsExamine(String dbpath) { List list = new ArrayList (); try{ Class.forName("org.sqlite.JDBC"); Connection conn = DriverManager.getConnection("jdbc:sqlite:"+dbpath); Statement stmt = conn.createStatement(); ResultSet res = stmt.executeQuery(" select * from T_STREETS_SURVEY "); while(res.next()) { //公共部分 String pid = res.getString("PID"); //......................................这里省略n行 list.add(te); } res.close(); stmt.close(); res.close(); } catch(Exception e) { e.printStackTrace(); } return list; }
4.向.db文件中写入数据
public void addStreets(TStreets te ,String dbpath)
{
try{
Class.forName("org.sqlite.JDBC");
Connection conn = DriverManager.getConnection("jdbc:sqlite:"+"E://toponymsurvey11122.db");
Statement stmt = conn.createStatement();
PreparedStatement pstmt = null ; // 数据库操作
String sql = " INSERT INTO T_STREETS(PID ,STDENAME) VALUES (?,?) " ;
pstmt = conn.prepareStatement(sql) ;
pstmt.setString(1,te.getPid()) ;
pstmt.setString(2,te.getStdname()) ;
pstmt.executeUpdate() ; // 执行更新
pstmt.close() ;
stmt.close();
conn.close();
}catch(Exception e)
{
e.printStackTrace();
}
}
5 需要导入的驱动包
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