📄 log.java
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import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.bwm.db.*;
import java.sql.*;
import com.bwm.login.*;
public class log extends HttpServlet{
private static final String CONTENT_TYPE="text/html;charset=GBK";
public void init() throws ServletException{
}
public void doPost(HttpServletRequest request,HttpServletResponse response)throws ServletException,IOException{
request.setCharacterEncoding("GBK");
response.setContentType(CONTENT_TYPE);
HttpSession session=request.getSession();
ServletContext application=this.getServletContext();
if(session.getAttribute("username")!=null){
response.sendRedirect("index1.jsp");
return;
}
String username=request.getParameter("username");
if()
}
}
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