从sqlite获取数据并对其进行比较

Question

嘿，我正在开发一个项目，希望显示通知。为了显示通知，我得到日期列并将它的每个值与一个特定的字符串进行比较。

Answer 1

嘿，这问题是由这个解决...

try { 
     Connection connection = null; 
     Class.forName("org.sqlite.JDBC"); 
     conn = DriverManager.getConnection("xyz.sqlite"); 
     String s = "SELECT DateTime FROM Userlist"; 
     PreparedStatement preparedStatement = conn.prepareStatement(s); 
     ResultSet resultset= preparedStatement.executeQuery();   

     String str = "string"; 
      while (resultset.next()) {     
       String string= resultset.getString("columnname"); 
       if(str.equals(string)){ 
        System.out.println("!!!!!!It matched: " + str); 

        break; 
       } 
       else {      
        System.out.println("No match with: " + string);      
       } 
      } 

     } 
    catch (Exception e) { 
      System.out.println(e);  
      }