若依源码分析（2）——首页界面

首页界面/index请求【GET】

定位到SysIndexController

在这里插入图片描述

/**
     * 系统首页
     * @param mmap
     * @return
     */
    @GetMapping("/index")
    public String index(ModelMap mmap)
    {
        // 取身份信息
        SysUser user = ShiroUtils.getSysUser();
        // 根据用户id取出菜单
        // 使用menuService进行具体的业务处理，跳转到service层
        // 返回一个List对象，其类型是SysMenu
        // SysMenu是一个菜单的权限表对象，其设置了菜单名、类型、父菜单、子菜单等等一系列属性
        List<SysMenu> menus = menuService.selectMenusByUser(user);
        //将相关的信息放入视图map中，类型为String-Object
        mmap.put("menus", menus);
        mmap.put("user", user);
        //侧边栏主题
        mmap.put("sideTheme", configService.selectConfigByKey("sys.index.sideTheme"));
        //皮肤名称
        mmap.put("skinName", configService.selectConfigByKey("sys.index.skinName"));
        //版权年份
        mmap.put("copyrightYear", Global.getCopyrightYear());
        //
        mmap.put("demoEnabled", Global.isDemoEnabled());
        //将视图解析器返回到页面
        return "index";
    }

调用MenuService跳到service层ISysMenuService类

ISysMenuService调用了selectMenusByUser(SysUser user)，其在ISysMenuServiceImpl中实现

/**
     * 根据用户查询菜单
     * 
     * @param user 用户信息
     * @return 菜单列表
     */
    @Override
    public List<SysMenu> selectMenusByUser(SysUser user)
    {
        List<SysMenu> menus = new LinkedList<SysMenu>();
        // 管理员显示所有菜单信息
        if (user.isAdmin())
        {
            //如果是管理员
            menus = menuMapper.selectMenuNormalAll();
        }
        else
        {
            //如果不是管理员，则根据userId显示对应信息
            menus = menuMapper.selectMenusByUserId(user.getUserId());
        }
        //根据父节点的id获取所有子节点
        return getChildPerms(menus, 0);
    }

获取菜单的子节点，进行递归遍历

/**
     * 根据父节点的ID获取所有子节点
     * 
     * @param list 分类表
     * @param parentId 传入的父节点ID
     * @return String
     */
    public List<SysMenu> getChildPerms(List<SysMenu> list, int parentId)
    {
        List<SysMenu> returnList = new ArrayList<SysMenu>();
        //迭代穿入的menu菜单list
        for (Iterator<SysMenu> iterator = list.iterator(); iterator.hasNext();)
        {
            //SysMenu既有父菜单也有子菜单
            SysMenu t = (SysMenu) iterator.next();
            // 一、根据传入的某个父节点ID,遍历该父节点的所有子节点
            if (t.getParentId() == parentId)
            {
                //递归处理
                recursionFn(list, t);
                //将当前节点递归出来的所有子节点加入到returnList中
                returnList.add(t);
            }
        }
        return returnList;
    }

pojo - SysMenu 类

package com.ruoyi.system.domain;

import java.util.List;
import java.util.ArrayList;
import javax.validation.constraints.*;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import com.ruoyi.common.core.domain.BaseEntity;

/**
 * 菜单权限表 sys_menu
 * 
 * @author ruoyi
 */
public class SysMenu extends BaseEntity
{
    private static final long serialVersionUID = 1L;

    /** 菜单ID */
    private Long menuId;

    /** 菜单名称 */
    private String menuName;

    /** 父菜单名称 */
    private String parentName;

    /** 父菜单ID */
    private Long parentId;

    /** 显示顺序 */
    private String orderNum;

    /** 菜单URL */
    private String url;

    /** 打开方式：menuItem页签 menuBlank新窗口 */
    private String target;

    /** 类型:0目录,1菜单,2按钮 */
    private String menuType;

    /** 菜单状态:0显示,1隐藏 */
    private String visible;

    /** 权限字符串 */
    private String perms;

    /** 菜单图标 */
    private String icon;

    /** 子菜单 */
    private List<SysMenu> children = new ArrayList<SysMenu>();

    public Long getMenuId()
    {
        return menuId;
    }

    public void setMenuId(Long menuId)
    {
        this.menuId = menuId;
    }

    @NotBlank(message = "菜单名称不能为空")
    @Size(min = 0, max = 50, message = "菜单名称长度不能超过50个字符")
    public String getMenuName()
    {
        return menuName;
    }

    public void setMenuName(String menuName)
    {
        this.menuName = menuName;
    }

    public String getParentName()
    {
        return parentName;
    }

    public void setParentName(String parentName)
    {
        this.parentName = parentName;
    }

    public Long getParentId()
    {
        return parentId;
    }

    public void setParentId(Long parentId)
    {
        this.parentId = parentId;
    }

    @NotBlank(message = "显示顺序不能为空")
    public String getOrderNum()
    {
        return orderNum;
    }

    public void setOrderNum(String orderNum)
    {
        this.orderNum = orderNum;
    }

    @Size(min = 0, max = 200, message = "请求地址不能超过200个字符")
    public String getUrl()
    {
        return url;
    }

    public void setUrl(String url)
    {
        this.url = url;
    }

    public String getTarget()
    {
        return target;
    }

    public void setTarget(String target)
    {
        this.target = target;
    }

    @NotBlank(message = "菜单类型不能为空")
    public String getMenuType()
    {
        return menuType;
    }

    public void setMenuType(String menuType)
    {
        this.menuType = menuType;
    }

    public String getVisible()
    {
        return visible;
    }

    public void setVisible(String visible)
    {
        this.visible = visible;
    }

    @Size(min = 0, max = 100, message = "权限标识长度不能超过100个字符")
    public String getPerms()
    {
        return perms;
    }

    public void setPerms(String perms)
    {
        this.perms = perms;
    }

    public String getIcon()
    {
        return icon;
    }

    public void setIcon(String icon)
    {
        this.icon = icon;
    }

    public List<SysMenu> getChildren()
    {
        return children;
    }

    public void setChildren(List<SysMenu> children)
    {
        this.children = children;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
            .append("menuId", getMenuId())
            .append("menuName", getMenuName())
            .append("parentId", getParentId())
            .append("orderNum", getOrderNum())
            .append("url", getUrl())
            .append("target", getTarget())
            .append("menuType", getMenuType())
            .append("visible", getVisible())
            .append("perms", getPerms())
            .append("icon", getIcon())
            .append("createBy", getCreateBy())
            .append("createTime", getCreateTime())
            .append("updateBy", getUpdateBy())
            .append("updateTime", getUpdateTime())
            .append("remark", getRemark())
            .toString();
    }
}

pojo - SysUser 类

[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-ssq0Hvsd-1587282407492)(D:/Typora/Typoraimages/若依/首页/1587200255566.png)]

package com.ruoyi.system.domain;

import java.util.Date;
import java.util.List;
import javax.validation.constraints.*;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import com.ruoyi.common.annotation.Excel;
import com.ruoyi.common.annotation.Excel.ColumnType;
import com.ruoyi.common.annotation.Excel.Type;
import com.ruoyi.common.annotation.Excels;
import com.ruoyi.common.core.domain.BaseEntity;

/**
 * 用户对象 sys_user
 * 对应数据库中的sys_user表
 * @author ruoyi
 */
public class SysUser extends BaseEntity
{
    private static final long serialVersionUID = 1L;

    /** 用户ID */
    @Excel(name = "用户序号", cellType = ColumnType.NUMERIC, prompt = "用户编号")
    private Long userId;

    /** 部门ID */
    @Excel(name = "部门编号", type = Type.IMPORT)
    private Long deptId;

    /** 部门父ID */
    private Long parentId;

    /** 角色ID */
    private Long roleId;

    /** 登录名称 */
    @Excel(name = "登录名称")
    private String loginName;

    /** 用户名称 */
    @Excel(name = "用户名称")
    private String userName;

    /** 用户类型 */
    private String userType;

    /** 用户邮箱 */
    @Excel(name = "用户邮箱")
    private String email;

    /** 手机号码 */
    @Excel(name = "手机号码")
    private String phonenumber;

    /** 用户性别 */
    @Excel(name = "用户性别", readConverterExp = "0=男,1=女,2=未知")
    private String sex;

    /** 用户头像 */
    private String avatar;

    /** 密码 */
    private String password;

    /** 盐加密 */
    private String salt;

    /** 帐号状态（0正常 1停用） */
    @Excel(name = "帐号状态", readConverterExp = "0=正常,1=停用")
    private String status;

    /** 删除标志（0代表存在 2代表删除） */
    private String delFlag;

    /** 最后登陆IP */
    @Excel(name = "最后登陆IP", type = Type.EXPORT)
    private String loginIp;

    /** 最后登陆时间 */
    @Excel(name = "最后登陆时间", width = 30, dateFormat = "yyyy-MM-dd HH:mm:ss", type = Type.EXPORT)
    private Date loginDate;

    /** 部门对象 */
    @Excels({
        @Excel(name = "部门名称", targetAttr = "deptName", type = Type.EXPORT),
        @Excel(name = "部门负责人", targetAttr = "leader", type = Type.EXPORT)
    })
    private SysDept dept;

    private List<SysRole> roles;

    /** 角色组 */
    private Long[] roleIds;

    /** 岗位组 */
    private Long[] postIds;

    public SysUser()
    {

    }

    public SysUser(Long userId)
    {
        this.userId = userId;
    }

    public Long getUserId()
    {
        return userId;
    }

    public void setUserId(Long userId)
    {
        this.userId = userId;
    }

    public boolean isAdmin()
    {
        return isAdmin(this.userId);
    }

    public static boolean isAdmin(Long userId)
    {
        return userId != null && 1L == userId;
    }

    public Long getDeptId()
    {
        return deptId;
    }

    public void setDeptId(Long deptId)
    {
        this.deptId = deptId;
    }

    public Long getParentId()
    {
        return parentId;
    }

    public void setParentId(Long parentId)
    {
        this.parentId = parentId;
    }

    public Long getRoleId()
    {
        return roleId;
    }

    public void setRoleId(Long roleId)
    {
        this.roleId = roleId;
    }

    @NotBlank(message = "登录账号不能为空")
    @Size(min = 0, max = 30, message = "登录账号长度不能超过30个字符")
    public String getLoginName()
    {
        return loginName;
    }

    public void setLoginName(String loginName)
    {
        this.loginName = loginName;
    }

    @Size(min = 0, max = 30, message = "用户昵称长度不能超过30个字符")
    public String getUserName()
    {
        return userName;
    }

    public void setUserName(String userName)
    {
        this.userName = userName;
    }

    public String getUserType()
    {
        return userType;
    }

    public void setUserType(String userType)
    {
        this.userType = userType;
    }

    @Email(message = "邮箱格式不正确")
    @Size(min = 0, max = 50, message = "邮箱长度不能超过50个字符")
    public String getEmail()
    {
        return email;
    }

    public void setEmail(String email)
    {
        this.email = email;
    }

    @Size(min = 0, max = 11, message = "手机号码长度不能超过11个字符")
    public String getPhonenumber()
    {
        return phonenumber;
    }

    public void setPhonenumber(String phonenumber)
    {
        this.phonenumber = phonenumber;
    }

    public String getSex()
    {
        return sex;
    }

    public void setSex(String sex)
    {
        this.sex = sex;
    }

    public String getAvatar()
    {
        return avatar;
    }

    public void setAvatar(String avatar)
    {
        this.avatar = avatar;
    }

    public String getPassword()
    {
        return password;
    }

    public void setPassword(String password)
    {
        this.password = password;
    }

    public String getSalt()
    {
        return salt;
    }

    public void setSalt(String salt)
    {
        this.salt = salt;
    }

    public String getStatus()
    {
        return status;
    }

    public void setStatus(String status)
    {
        this.status = status;
    }

    public String getDelFlag()
    {
        return delFlag;
    }

    public void setDelFlag(String delFlag)
    {
        this.delFlag = delFlag;
    }

    public String getLoginIp()
    {
        return loginIp;
    }

    public void setLoginIp(String loginIp)
    {
        this.loginIp = loginIp;
    }

    public Date getLoginDate()
    {
        return loginDate;
    }

    public void setLoginDate(Date loginDate)
    {
        this.loginDate = loginDate;
    }

    public SysDept getDept()
    {
        if (dept == null)
        {
            dept = new SysDept();
        }
        return dept;
    }

    public void setDept(SysDept dept)
    {
        this.dept = dept;
    }

    public List<SysRole> getRoles()
    {
        return roles;
    }

    public void setRoles(List<SysRole> roles)
    {
        this.roles = roles;
    }

    public Long[] getRoleIds()
    {
        return roleIds;
    }

    public void setRoleIds(Long[] roleIds)
    {
        this.roleIds = roleIds;
    }

    public Long[] getPostIds()
    {
        return postIds;
    }

    public void setPostIds(Long[] postIds)
    {
        this.postIds = postIds;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
            .append("userId", getUserId())
            .append("deptId", getDeptId())
            .append("loginName", getLoginName())
            .append("userName", getUserName())
            .append("userType", getUserType())
            .append("email", getEmail())
            .append("phonenumber", getPhonenumber())
            .append("sex", getSex())
            .append("avatar", getAvatar())
            .append("password", getPassword())
            .append("salt", getSalt())
            .append("status", getStatus())
            .append("delFlag", getDelFlag())
            .append("loginIp", getLoginIp())
            .append("loginDate", getLoginDate())
            .append("createBy", getCreateBy())
            .append("createTime", getCreateTime())
            .append("updateBy", getUpdateBy())
            .append("updateTime", getUpdateTime())
            .append("remark", getRemark())
            .append("dept", getDept())
			.append("roles", getRoles())
            .toString();
    }
}

了解若依 /system/main