jdbc 对sqlite的基本操作
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 tableif exists T_EXAMINEDATA";
3 . 从 .db 文件中读取信息
public List <TStreetsExamine> queryTStreetsExamine(String dbpath)
{
List <TStreetsExamine> list = new ArrayList<TStreetsExamine>();
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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