java - 在静态查询中设置变量

Question

我有一个静态查询，如 Select * from Emp where Empid in (?) 并且我有该值 (?)。我无法确定这个值。请指导我。如果还有其他需要，请告诉我。

Answer 1

试试这个java代码:

public boolean yourMethod(String yuorValue) {
    String sql = "select * from user where fieldName = ?";
    PreparedStatement stmt = connection.prepareStatement(sql);
    stmt.setString(1, yuorValue);//fieldvalue(1), Your passing value 
    ResultSet rs = stmt.executeQuery();
    return rs.next(); 
 }