//表單
<form action="/showUser" method="get" id="select">
<span>使用者名稱：</span>
<input type="text"  name="name" placeholder="請輸入使用者名稱"/>
<input type="button"  onclick="submitForm()" value="查詢"/>
<a href="userAdd.html">新增使用者</a>
</form>

//js程式碼
<script>
    function submitForm(){
        //獲取form表單物件,提交選擇專案
        var form = document.getElementById("select");
        form.submit();//form表單提交
    }
</script>

//service層程式碼

public PageInfo<SmbmsUser> showUser(int pageNum,String name){
    //當前頁 頁面容量
    PageHelper.startPage(pageNum,5);

    Example example = new Example(SmbmsUser.class);
    Example.Criteria criteria = example.createCriteria();

    if (!StringUtils.isEmpty(name)){
        //通過使用者名稱模糊查詢
        criteria.andLike("username",'%' + name + '%');
    }

    List<SmbmsUser> smbmsUsers = smbmsUserMapper.selectByExample(example);
    bindUser(smbmsUsers);
    PageInfo<SmbmsUser> pageInfo = new PageInfo<>(smbmsUsers);
    return  pageInfo;
}