finduser.java

功能描述 1） 后台：管理员负责对整个论坛进行管理

package bbs.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import bbs.db.UserDBAccess;
import bbs.bean.BbsUsers;
import bbs.db.SectionDB;

public class FindUser
    extends HttpServlet {
  private static final String CONTENT_TYPE = "text/html; charset=GBK";

  //Initialize global variables
  public void init() throws ServletException {
  }

  //Process the HTTP Get request
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();
    //通过用户/用户ID/email查找用户相关属性
    String uid = request.getParameter("userid");
    String uname = request.getParameter("fusername");
    String uemail = request.getParameter("fuseremail");
    try {
      UserDBAccess db = new UserDBAccess();
      BbsUsers obj = null;
      if (!uid.equals("")) {
        obj = db.selectByID(uid);
        System.out.println("查找用户 ID："+uid+"a");
      }
      else if (!uname.equals("")) {
        obj = db.selectByName(uname);
        System.out.println("查找用户 Uname："+uname);
      }
      else {
        obj = db.selectByEmail(uemail);
        System.out.println("查找用户 Uemail："+uemail);
      }
      SectionDB se = new SectionDB();
      ArrayList section = se.selectAll();
      request.setAttribute("user",obj);
      request.setAttribute("section",section);
      request.getRequestDispatcher("adminfinduser.jsp").forward(request, response);
    }
    catch (Exception ex) {
      ex.printStackTrace();
      request.setAttribute("message", "数据库操作发生错误！");
      request.getRequestDispatcher("error.jsp").forward(request, response);
    }
    out.close();
  }

  //Process the HTTP Post request
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    doGet(request, response);
  }

  //Clean up resources
  public void destroy() {
  }
}