j2me结合j2ee实现用户登陆功能-2【转】

服务器代码:
LoginServlet:
package com;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.OutputStream;

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

/** *//*******************************************************************************
*
* @author zdw
*
*/
@SuppressWarnings("serial")
public class LoginServlet extends HttpServlet
{

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        this.doPost(request, response);
     }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException
    {
        // 得到客户端传入的数据(用户名和密码)
         String username = request.getParameter("username");
         String password = request.getParameter("password");
        // 构建输出流
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         DataOutputStream dos = new DataOutputStream(baos);
        // 逻辑操作(这里写你的逻辑判断)
        if ("zdw".equals(username) && "admin".equals(password))
        {
            // 响应数据
             dos.writeUTF("true");
         } else
        {
            // 响应数据
             dos.writeUTF("false");
         }
        //
        byte[] data = baos.toByteArray();
        // 设置服务器响应参数
         response.setStatus(HttpServletResponse.SC_OK);
         response.setContentLength(data.length);
         response.setContentType("application/octet-stream");
         OutputStream os = response.getOutputStream();
         os.write(data);
         os.close();
     }

}

 

注意此工程为MyEclipse工程,您需要安装wtk和tomcat才能正常运行此程序.

登录图: