Question

紧急 如何用Java把MySql数据库里的数据显示到文本框中

如何用Java把mysql里的数据显示到jtextField上？
可不可以来点具体的代码了？

Answer 1

package com.costar.empdemo.action;

import java.util.List;

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 com.costar.empdemo.dao.indao.InDeptDAO;

public class FindDeptsAC extends Action {
InDeptDAO deptDAO;

public void setDeptDAO(InDeptDAO deptDAO) {
this.deptDAO = deptDAO;
}
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
{
String dname = request.getParameter("dname");

if (dname == null)
dname = "";
List list = deptDAO.findDepts(dname.toUpperCase());

request.setAttribute("depts", list);
return mapping.findForward("success");
}
}

Answer 2

1、连接数据库
2、执行查询
3、根据查询结果设置文本

Answer 3

sql语句会吧？
查出个list,程序里request.setAttribute("mylist",list);
在页面上用标签提取。list.字段名。