friendfindbyprimarykeyaction.java

通过Tomcat实现服务器的功能然后进行实现 这是一个个人通讯管理系统

package com.relationinfo.txl.struts.actions;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

import com.relationinfo.txl.dao.FriendDao;
import com.relationinfo.txl.dto.Friend;
import com.relationinfo.txl.factory.FriendDaoFactory;
import com.relationinfo.txl.struts.forms.FriendForm;

public class FriendFindByPrimaryKeyAction extends Action
{
	/**
	 * Method 'execute'
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @throws Exception
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception
	{
		try {
			// 解析参数
			java.lang.String _xmjp = request.getParameter("xmjp");
		
			//创建Dao类
			FriendDao dao = FriendDaoFactory.create();
		
			// 执行查询
			Friend dto = dao.findByPrimaryKey(_xmjp);
		
			// 检测是否查到记录
			if (dto == null) {
				throw new RuntimeException( "Finder did not return any data" );
			}
		
			String crudMethod = request.getParameter("crudMethod");
			if (crudMethod == null) {
				crudMethod = "view";
			}
		
			// populate a struts form
			FriendForm friendForm = new FriendForm();
			friendForm.setCrudMethod( request.getParameter("crudMethod") );
			friendForm.setXmjp(dto.getXmjp());
			friendForm.setGroupid(dto.getGroupid());
			friendForm.setName(dto.getName());
			friendForm.setAge(dto.getAge());
			friendForm.setSex(dto.getSex());
			friendForm.setProfessional(dto.getProfessional());
			friendForm.setScholarship(dto.getScholarship());
			friendForm.setAddress(dto.getAddress());
			friendForm.setEmail(dto.getEmail());
			friendForm.setPhone(dto.getPhone());
			friendForm.setNote(dto.getNote());
			// 存储结果
			request.getSession().setAttribute( "Friend", friendForm );
		
			return mapping.findForward( crudMethod );
		}
		catch (Exception e) {
			ActionErrors _errors = new ActionErrors();
			_errors.add( ActionErrors.GLOBAL_ERROR, new ActionError("internal.error", e.getClass().getName() + ": " + e.getMessage() ) );
			saveErrors( request, _errors );
			return mapping.findForward( "failure" );
		}
		
	}

}