SQL and Java Data time

1.java

NewNew

2sql

Datatime YYYY-mm-DD HH-mm-ssdatatime Year

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HttpSession session = Request.getsession (); // if there is a session, otherwise create Session.getattribute ("");

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interface redirection:    servlet--->jsp   1. String tojsp = "/jsp/search.jsp";         // no new Request object        is generated RequestDispatcher rd=request.getrequestdispatcher (tojsp);         Rd.forward (request, response);       2= "/databasecourse/jsp/search.jsp?yes=" +BB;                        Response.sendredirect (URL);

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jsp-->servlet    1.<a><link>    2.<form>    3.sendRedirect ()

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Interface data transfer sharing method     1. HttpSession     getattribute ();    Request.getsession ();     2. Cookie    Request.setcookie ()'    3.url = ' url? ' +name+=value&name1=value1    resquest.getparameter ()    4form        "Retrurn"         Resquest.getparameter ();        

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JS manipulating HTML

SQL and Java Data time