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IDEA+MySQL实现登录注册的注册验证时出现 Cannot resolve query parameter '2'
IDEA+MySQL实现登录注册的注册验证时出现 Cannot resolve query parameter '2'
时间：2021-07-01 10:21:17
帮助过：7人阅读
(conn !=
null){
String sql = "SELECT *FROM login_info WHERE DBuser=?"
;
pstm =
conn.prepareStatement(sql);
pstm.setString(1
,user);
rs =
pstm.executeQuery();
if(!
rs.next()){
sql = "INSERT INTO login_info(DBuser,DBpass,Age,Email,Gender,Hobby,Education,Introduce) VALUE(?,?,?,?,?,?,?,?)"
;
pstm =
conn.prepareStatement(sql);
pstm.setString(1
,user);
pstm.setString(2
,pass);
pstm.setString(3
,age);
pstm.setString(4
,email);
pstm.setString(5
,gender);
pstm.setString(6
,hobby);
pstm.setString(7
,education);
pstm.setString(8
,introduce);
pstm.executeUpdate();
}else{
out.println("该用户名已存在"
);
}
int row =
pstm.executeUpdate();
if(row>0
){
out.println("成功添加"+row+"条数据！"
);
}
}
else{
out.print("连接失败！"
);
}
}catch (Exception e) {
out.print("数据库连接异常！"
);
out.println(e);
e.printStackTrace();
}finally
{
try
{
if (rs !=
null)
rs.close();
if (pstm !=
null)
pstm.close();
if (conn !=
null)
conn.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
运行起来显示
数据库连接异常
查看异常显示
The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
IDEA+MySQL实现登录注册的注册验证时出现 Cannot resolve query parameter '2'
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