前端点击编辑按钮，后端查询id对应的回显数据，返回页面

Controller层

    @RequestMapping(path="/updateUI",method ={ RequestMethod.GET, RequestMethod.POST})
    public String updateUI(Model model, String deptId){

        String companyId =getLoginCompanyId();
        l.info("toUpdate deptId="+deptId);

        //查询部门
        Dept dept = iDeptService.findById(deptId);
        l.info("toUpdate dept="+dept);

        List<Dept> list = iDeptService.findAllParent(companyId);

        model.addAttribute("dept",dept);
        model.addAttribute("list",list);

        return "system/dept/dept-update";
    }

Service层

@Override
public List<Dept> findAllParent(String loginCompanyId) {
    List<Dept> all = iDeptDao.findAll(loginCompanyId);
    return all;
}

Dao层

    <select id="findAll" resultMap="findOneMap" parameterType="string">
            select * from pe_dept where company_id =#{companyId}
    </select>

下拉菜单回显

 <select class="form-control" name="parentId">
     <option value="">请选择</option>
     <c:forEach items="${list}" var="item">
         <c:if test="${dept.deptId != item.deptId}">
             <option ${dept.parent.deptId == item.deptId ?'selected':''}  value="${item.deptId}">${item.deptName}</option>
         </c:if>
     </c:forEach>
 </select>

单选框的回显

  <div class="form-group form-inline">
       <div class="radio"><label><input type="radio" ${dept.state==0?'checked':''} name="state" value="0">停用</label></div>
      <div class="radio"><label><input type="radio" ${dept.state==1?'checked':''} name="state" value="1">启用</label></div>
  </div>