msgbookaction.java

Struts数据库项目开发宝典光盘第一部分

package classmate;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.DynaActionForm;

import javax.servlet.ServletContext;
import javax.servlet.http.*;
import javax.sql.DataSource;
import java.sql.*;

public final class MsgBookAction extends Action{  
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,  
		HttpServletResponse response) throws Exception {
		
	
   		DynaActionForm dyform = (DynaActionForm) form;         
		String name = (String)dyform.get("name");
		String sex = (String)dyform.get("sex");
		String email = (String)dyform.get("email");
		String title = (String)dyform.get("title");
		String content = (String)dyform.get("content");
		

   		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource)context.getAttribute("oracleDB1");
						
		Connection conn = null;
		ActionMessages errors = new ActionMessages();
		String strsql="insert into msgbook values('"
				+ name + "','" 
				+ sex + "','" 
				+ email + "','" 
				+ title + "','" 
				+ content + "')";
		System.out.println("strsql:   "+strsql);
		try {
			conn = dataSource.getConnection();
			Statement stmt = conn.createStatement();
			int result = 0;
			result = stmt.executeUpdate(strsql);
				
			if ( result == 1) {
				errors.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("errors.Submitsuccess"));
			}
			else{
				errors.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("errors.SubmitFail"));
			}
			
		}catch(SQLException e){
			System.out.println("sqlerror");
			errors.add(ActionMessages.GLOBAL_MESSAGE,
				new ActionMessage("errors.SubmitFail"));
		}finally{
			if(conn!=null)
				conn.close();	
		}
		
		if (!errors.isEmpty()) {
				saveErrors(request, errors);
		} 
		System.out.println("errors:   "+errors.size());
  		return  mapping.findForward("toMsg"); 

	}
}