querynameaction.java

来自「郭克华j2ee高级框架实战教学视频源代码 这个是比较值得一看的 由郭克华博士」· Java 代码 · 共 38 行

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package prj29_1.action;

import java.io.PrintWriter;

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

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 dao.StudentDao;


public class QueryNameAction extends Action {

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		
		String stuId = request.getParameter("stuId");
		StudentDao sdao = new StudentDao();
		String stuName = sdao.getNameById(stuId);
		response.setCharacterEncoding("gb2312");
		System.out.println(stuName);
		try{
			PrintWriter out = response.getWriter();
			if(stuName==null)	{stuName = "该学生不存在";}
			out.print(stuName);//相当于给客户端的输出，将会在页面上显示
		}catch(Exception ex){}
		
		return null;
	}
}