Novice help: java can access the contents of the table when connected with jdbc in java, why is the result not displayed

gift0519

The fourth type of pure java driver you use, the red part is not needed
Statement st = con.createStatement([color=#FF0000]ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE[/color]);
Besides, what is wrong with him holding you
Have you put the three jar files used to connect to the database in the lib directory?

w365440

You do not need to modify the table for this code, so it is better to remove the parameters and have a look!
(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);

nishizhuoy

Try to put your JDBC driver package in the lib under /WEB-INF of your released project

dx5065

[Quote=Quote from the reply oflarcomon the 2nd floor:]
Quoting the reply fromloveyanyanon the 1st floor:
ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE
This is wrong,
Change to ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY


It should be this problem!
[/Quote]

Same as above. . This sentence can be omitted.

shyshykyo

gosh. . . . Java connection to the database is not disconnected. . . . . Your connection is closed. . . How to get the data. . . .
I feel oh. . . Don't know if it's right. . . .

w365440

[Quote=Quote the reply ofshyshykyoon the 7th floor:]
gosh. . . . Java connection to the database is not disconnected. . . . . Your connection is closed. . . How to get the data. . . .
I feel oh. . . Don't know if it's right. . . .
[/Quote]
He took the data and then closed it!

zhukai3421

Statement st = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);

   The sentence in brackets can be omitted. ~

  out.print( "<TD> "+rs.getString(1)+" </TD> ");


    Also.. Didn't find your second <tr> tag.. So the webpage format will be wrong.