MD5在UserService里面生成的摘要不一样

相关代码：UserService

package com.imooc.oa.service;

import com.imooc.oa.dao.RbacDao;
import com.imooc.oa.dao.UserDao;
import com.imooc.oa.entity.Node;
import com.imooc.oa.entity.User;
import com.imooc.oa.exception.BussinessException;
import com.imooc.oa.utils.MD5Utils;
import com.imooc.oa.utils.MyBatisUtils;

import java.util.List;

public class UserService {
    private UserDao userDao = new UserDao();
    private RbacDao rbacDao = new RbacDao();
    /**
     * 根据前台输入进行登录校验
     * @param username 前台输入的用户名
     * @param password 前台输入的密码
     * @return User实体类
     * @threws 自定义异常类BussinessException L001-用户名不存在 L002-密码错误
     */
    public User checkLogin(String username, String password) {
        User user = userDao.selectByUsername(username);
        if (user == null) {
            //抛出用户不存在异常
            throw new BussinessException("L001", "用户名不存在");
        }
        //对前台输入的密码加盐混淆生成MD5摘要，与保存在数据库中的MD5进行对比
        String md5 = MD5Utils.md5Digest(password, user.getSalt());
        if (!md5.equals(user.getPassword())) {
            throw new BussinessException("L002", "密码错误");
        }
        return user;
    }

    /**
     * 没有什么业务逻辑 直接传递调用
     * @param userId 要查询拥有那些功能的员工编号
     * @return Node实体类的功能列表
     */
    public List<Node> selectNodeByUserId(Long userId) {
        List<Node> nodeList = rbacDao.selectNodeByUserId(userId);
        return nodeList;
    }

}

相关代码：Testor

package com.imooc.oa.utils;

import org.junit.Test;

import static org.junit.Assert.*;

public class MD5UtilsTest {

    @Test
    public void md5Digest() {
        System.out.println(MD5Utils.md5Digest("test"));
        System.out.println(MD5Utils.md5Digest("test"));
        System.out.println(MD5Utils.md5Digest("test"));
        System.out.println(MD5Utils.md5Digest("test"));

    }
    @Test
    public void md5Digest2() {
        System.out.println(MD5Utils.md5Digest("test", 188));
        System.out.println(MD5Utils.md5Digest("test", 189));
        System.out.println(MD5Utils.md5Digest("test", 190));
        System.out.println(MD5Utils.md5Digest("test", 191));
        System.out.println(MD5Utils.md5Digest("test", 192));
        System.out.println(MD5Utils.md5Digest("test", 193));
        System.out.println(MD5Utils.md5Digest("test", 194));
        System.out.println(MD5Utils.md5Digest("test", 195));
        System.out.println(MD5Utils.md5Digest("test", 196));
        System.out.println(MD5Utils.md5Digest("test", 197));


    }




}

相关代码：

LoginServlet

package com.imooc.oa.controller;

import com.alibaba.fastjson.JSON;
import com.imooc.oa.entity.User;
import com.imooc.oa.exception.BussinessException;
import com.imooc.oa.service.UserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

@WebServlet(name = "LoginServlet", urlPatterns = "/check_login")
public class LoginServlet extends HttpServlet {
    //Logger 日志输出器 LoggerFactory.getLogger(LoginServlet.class)创建指定类的输出器
    Logger logger = LoggerFactory.getLogger(LoginServlet.class);
    private UserService userService = new UserService();
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("UTF-8");
        response.setContentType("text/html;charset=utf-8");
        //接收用户输入的信息
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        Map<String, Object> result = new HashMap();
        //调用业务逻辑
        try {
            User user = userService.checkLogin(username, password);
            HttpSession session = request.getSession();
            result.put("code", "0");
            result.put("message", "success");
            result.put("redirect_url", "/index");
            //向session中储存登录用户信息，以便于IndexServlet调用User
            session.setAttribute("login_user", user);
        } catch (BussinessException ex) {
            logger.error(ex.getMessage(), ex);//在日志中输出异常信息
            result.put("code", ex.getCode());
            result.put("message", ex.getMessage());
        } catch (Exception ex) {
            logger.error(ex.getMessage(), ex);
            result.put("code", ex.getClass().getSimpleName());//Exception.getClass().getSimpleName()获取异常名
            result.put("message", ex.getClass());
        }
        //返回对应结果 ---- 利用json只返回数据就可以了 不需要指定在那个页面返回 再利用ajax技术接收数据
        //我们采用ajax的请求向服务器发送异步的通讯，告诉前台服务器校验是否通过的消息，不再在controller层进行页面跳转，只进行数据接收处理和返还
        String json = JSON.toJSONString(result);
        response.getWriter().println(json);
    }

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    }
}

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