031 SSM综合练习07--数据后台管理系统--用户详情查询

1.用户详情查询流程分析

2.代码实现

(1)user-list.jsp页面部分代码

点击jsp页面中的详情按钮，发送请求到UserController.java

<!--数据列表-->
                            <table id="dataList"
                                class="table table-bordered table-striped table-hover dataTable">
                                <thead>
                                    <tr>
                                        <th class="" style="padding-right: 0px"><input
                                            id="selall" type="checkbox" class="icheckbox_square-blue">
                                        </th>
                                        <th class="sorting_asc">ID</th>
                                        <th class="sorting_desc">用户名</th>
                                        <th class="sorting_asc sorting_asc_disabled">邮箱</th>
                                        <th class="sorting_desc sorting_desc_disabled">联系电话</th>
                                        <th class="sorting">状态</th>
                                        <th class="text-center">操作</th>
                                    </tr>
                                </thead>
                                <tbody>

                                    <c:forEach items="${userList}" var="user">
                                        <tr>
                                            <td><input name="ids" type="checkbox"></td>
                                            <td>${user.id }</td>
                                            <td>${user.username }</td>
                                            <td>${user.email }</td>
                                            <td>${user.phoneNum }</td>
                                            <td>${user.statusStr }</td>                                            
                                            <td class="text-center">
                                                <a href="${pageContext.request.contextPath}/user/queryById?id=${user.id}" class="btn bg-olive btn-xs">详情</a>
                                                <a href="${pageContext.request.contextPath}/user/findUserByIdAndAllRole.do?id=${user.id}" class="btn bg-olive btn-xs">添加角色</a>
                                            </td>
                                        </tr>
                                    </c:forEach>
                                </tbody>
                                <!--
                            <tfoot>
                            <tr>
                            <th>Rendering engine</th>
                            <th>Browser</th>
                            <th>Platform(s)</th>
                            <th>Engine version</th>
                            <th>CSS grade</th>
                            </tr>
                            </tfoot>-->
                            </table>

(2)表现层：UserController.java

package lucky.controller;

import lucky.domain.UserInfo;
import lucky.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

@Controller
@RequestMapping(path = "/user")
public class UserController {
    @Autowired
    private IUserService iUserService;
/**
     * 查询指定id的用户
     * @return 查询结果
     * @throws Exception
     * 注意：SpringMVC 绑定请求参数是自动实现的，会自动将参数绑定queryById方法的id上
     */
    @RequestMapping(path = "/queryById")
    public ModelAndView queryById(String id) throws Exception{
        ModelAndView mv=new ModelAndView();
        UserInfo userInfo=iUserService.queryById(id);
        mv.addObject("user",userInfo);
        mv.setViewName("user-show1");
        return mv;
    }


}

(3)服务层：IUserService及其实现类

package lucky.service;

import lucky.domain.UserInfo;
import org.springframework.security.core.userdetails.UserDetailsService;

import java.util.List;

public interface IUserService extends UserDetailsService {

    /**
     * 查询所有用户
     */
    public List<UserInfo> queryAll() throws Exception;

    /**
     * 保存用户
     * @param userInfo 需要保存的用户
     */
    void save(UserInfo userInfo) throws Exception;

    /**
     * 根据用户id查询
     * @param id 用户id
     */
    UserInfo queryById(String id) throws Exception;
}

实现类：

package lucky.service.impl;

import lucky.dao.IUserDao;
import lucky.domain.Role;
import lucky.domain.UserInfo;
import lucky.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * 使用springsecurity进行用户登录
 */
@Service(value = "userService")
public class UserServiceImpl implements IUserService {
    @Autowired
    private IUserDao iUserDao;

    @Autowired
    private BCryptPasswordEncoder bCryptPasswordEncoder;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        UserInfo userInfo=null;
        try {
            userInfo=iUserDao.queryByUsername(username);
        } catch (Exception e) {
            e.printStackTrace();
        }
        //将自己的用户对象封装成UserDetails，参数1为用户名，参数2为密码，参数3是用户权限
        User user=new User(userInfo.getUsername(),userInfo.getPassword(),getAuthority(userInfo.getRoles()));
        return user;
    }


    /**
     * @return 返回一个list集合，集合中装的是用户权限描述
     * @param roles
     */
    public List<SimpleGrantedAuthority> getAuthority(List<Role> roles) {
        List<SimpleGrantedAuthority> list=new ArrayList<>();
        for (Role role : roles) {
            list.add(new SimpleGrantedAuthority(role.getRoleName()));
        }
        return list;
    }

    @Override
    public List<UserInfo> queryAll() throws Exception {
        return iUserDao.queryAll();
    }

    @Override
    public void save(UserInfo userInfo) throws Exception {
        //调用spirngsecurity这个加密类BCryptPasswordEncoder，对密码进行加密
        userInfo.setPassword(bCryptPasswordEncoder.encode(userInfo.getPassword()));
        iUserDao.save(userInfo);
    }

    /**
     * 根据用户id查询
     * @param id 用户id
     * @return 查询结果
     * @throws Exception
     */
    @Override
    public UserInfo queryById(String id) throws Exception {
        return iUserDao.queryById(id);
    }
}

(4)持久层Dao

<1>IUserDao.java

package lucky.dao;

import lucky.domain.UserInfo;
import org.apache.ibatis.annotations.*;

import java.util.List;

public interface IUserDao {
    /**
     * @param username 用户名
     * @Results 映射查询结果集到实体类属性
     * column为数据库字段名，porperty为实体类属性名，jdbcType为数据库字段数据类型，id为是否为主键。
     * 涉及多对多查询，有中间表
     */
    @Select("select * from LUCKY.USERS where username=#{username}")
    @Results({
            @Result(id=true,property = "id",column = "id"),
            @Result(property = "username",column = "username"),
            @Result(property = "email",column = "email"),
            @Result(property = "password",column = "password"),
            @Result(property = "phoneNum",column = "phoneNum"),
            @Result(property = "status",column = "status"),
            @Result(property = "roles",column = "id",javaType = java.util.List.class,many = @Many(select="lucky.dao.IRoleDao.queryByUserId")),
    })
    public UserInfo queryByUsername(String username) throws Exception;

    /**
     * @return 查询所有用户
     */
    @Select("select * from LUCKY.USERS")
    public List<UserInfo> queryAll() throws Exception;

    @Insert("insert into LUCKY.USERS(email,username,password,phoneNum,status) values(#{email},#{username},#{password},#{phoneNum},#{status})")
    public void save(UserInfo userInfo) throws Exception;

    /**
     * 根据id查询
     * @param id 用户id
     */
    @Select("select * from LUCKY.USERS where id=#{id}")
    @Results({
            @Result(id=true,property = "id",column = "id"),
            @Result(property = "username",column = "username"),
            @Result(property = "email",column = "email"),
            @Result(property = "password",column = "password"),
            @Result(property = "phoneNum",column = "phoneNum"),
            @Result(property = "status",column = "status"),
            @Result(property = "roles",column = "id",javaType = java.util.List.class,many = @Many(select="lucky.dao.IRoleDao.queryByUserId")),
    })
    UserInfo queryById(String id) throws Exception;
}

<2>IRoleDao.java

package lucky.dao;

import lucky.domain.Role;
import org.apache.ibatis.annotations.Many;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface IRoleDao {
    /**
     * 多对多查询
     * 思路分析：先根据userid,从中间表USERS_ROLE中查到roleId，再根据roleId到ROLE表查询数据
     * @param userId USER表id值
     * @return 查询结果
     */
    @Select("select * from LUCKY.ROLE where id in (select roleId from LUCKY.USERS_ROLE WHERE userId=#{userId})")
    @Results({
            @Result(id=true,property = "id",column = "id"),
            @Result(property = "roleName",column = "roleName"),
            @Result(property = "roleDesc",column = "roleDesc"),
            @Result(property = "permissions",column = "id",javaType = java.util.List.class,many = @Many(select="lucky.dao.IPermissionsDao.queryByRoleId")),
    })
    public List<Role> queryByUserId(String userId)throws Exception;
}

<3>IPermission.java

package lucky.dao;

import lucky.domain.Permission;
import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface IPermissionsDao {
    @Select("select * from LUCKY.PERMISSION where id in (select permissionId from LUCKY.ROLE_PERMISSION WHERE roleId=#{roleId})")
    public List<Permission> queryByRoleId(String roleId);
}

(5)user-show1.jsp部分代码

<div class="box-body">
                        <!--树表格-->
                        <div class="tab-pane" id="tab-treetable">
                            <table id="collapse-table" class="table table-bordered table-hover dataTable">
                                <thead>
                                <tr>
                                    <th>用户</th>
                                    <th>描述</th>
                                </tr>
                                </thead>

                                <tr data-tt-id="0">
                                    <td colspan="2">${user.username}</td>
                                </tr>

                                <tbody>
                                <c:forEach items="${user.roles}" var="role" varStatus="vs">
                                    <tr data-tt-id="${vs.index+1}" data-tt-parent-id="0">
                                        <td>${role.roleName }</td>
                                        <td>${role.roleDesc }</td>
                                    </tr>
                                    <c:forEach items="${role.permissions}" var="permission">
                                        <tr data-tt-id="1-1" data-tt-parent-id="${vs.index+1}">
                                            <td>${permission.permissionName}</td>
                                            <td>${permission.url}</td>
                                        </tr>

                                    </c:forEach>
                                </c:forEach>

                                </tbody>
                            </table>
                        </div>
                        <!--树表格/-->


                <!-- .box-footer
    <div class="box-footer"></div>
    -->
                <!-- /.box-footer-->

            </div>

3.效果图