WEB程序设计(JSP)

修改用户的JavaBean(ModifyUser.java),代码如下：

package toolBean.user;

import java.io.IOException; import java.io.PrintWriter; import java.sql.SQLException;

import javax.servlet.ServletException; import javax.servlet.http.HttpServlet;

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

import valueBean.User;

public class ModifyUser extends HttpServlet {

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

}

//返回上页

String goBack=\返回上页\; }

response.setContentType(\); PrintWriter out = response.getWriter();

String name=request.getParameter(\); if(name!=null) //单击了‘修改用户’ { }

out.print(\修改成功！\); out.print(goBack); out.close();

String username=request.getParameter(\); String password=request.getParameter(\); User user=new User(); user.setUsername(username); user.setPassword(password);

toolBean.db.AccessUserFromDB dbUser=new try { }

dbUser.Update(user); e.printStackTrace();

out.print(\修改失败：\+e.getLocalizedMessage()); out.print(goBack); return;

} catch (SQLException e) {

toolBean.db.AccessUserFromDB();

思考题：

1. 当数据库中存贮中文信息时，如何在jsp页面中显示中文？

2. 考虑将添加、删除、查找(所有)用户及修改用户集成到一个JSP页面中