Struts從零開始三、連接數據庫實例[3]

String sql = select * from user where username= + username

　　+ and password= + userpass + ;

　　try {

　　Connection conn = dsgetConnection();

　　Statement st = conncreateStatement();

　　ResultSet rs = stexecuteQuery(sql);

　　while (rsnext()) {

　　flag = true;

　　}

　　} catch (Exception e) {

　　eprintStackTrace();

　　}

　　String actionpath = ;

　　if (flag) {

　　requestsetAttribute(username username);

　　actionpath = success;

　　} else {

　　actionpath = error;

　　}

　　return actionMappingfindForward(actionpath);

　　}

　　}

[]  []  []  []  

From:http://tw.wingwit.com/Article/program/Java/ky/201311/29128.html