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我正在处理这个问题,我需要从数据库中获取数据,然后填充到jtable中。我正在使用类似语句的查询。问题是当查询与一条记录匹配时,我无法在表格中看到任何记录。这是我的代码。Jtable没有填充一条记录
ResultSet rs=null;
String customer_name = null;
System.out.println("In the verfiy login");
try {
Connect_MYSQL object = new Connect_MYSQL();
conn = object.getConnection();
} catch (Exception e) {
System.out.println("Error while getting connection");
}
try {
Statement statement = (Statement) conn.createStatement();
String Query = "Select * from login where username like'%"+ name+"%' or usertype like'%"+name+"%'";
System.out.println(Query);
rs = statement.executeQuery(Query);
if (rs.next()) {
System.out.println("INsie Rs");
return rs;
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
return rs;
,我如何使用JTable中
DataBase_Work object=new DataBase_Work();
ResultSet rs2=object.Search_User(name);
String namee=rs2.getString("username");
System.out.println(namee+"User name");
if(rs2==null)
{
JOptionPane.showMessageDialog(null, "No Record Found Against the value", " Not Record Found", JOptionPane.ERROR_MESSAGE);
}
else
{
Show_all_User.setModel(DbUtils.resultSetToTableModel(rs2));
}
“ResultSet”是一系列(或“集合”)结果,您需要迭代ResultSet来获取每个单独的行。查看[从结果集中检索和修改值](http://docs.oracle.com/javase/tutorial/jdbc/basics/retrieving.html)以获取更多详细信息 – MadProgrammer