golang学习之beego框架配合easyui实现增删改查及图片上传

demo目录:

upload文件夹主要放置上传的头像文件,main是主文件,所有效果如下:

主页面:

具体代码:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>基于golang的后台管理系统</title>
    <link rel="stylesheet" type="text/css" href="/static/js/jquery-easyui-1.4.3/themes/default/easyui.css">
    <link rel="stylesheet" type="text/css" href="/static/js/jquery-easyui-1.4.3/themes/icon.css">
    <script type="text/javascript" src="/static/js/jquery-easyui-1.4.3/jquery.min.js"></script>
    <script type="text/javascript" src="/static/js/jquery-easyui-1.4.3/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="/static/js/jquery-easyui-1.4.3/locale/easyui-lang-zh_CN.js"></script>
    <style>
        .top{ background:url(/static/img/top.jpg) repeat-x; height:78px; position:relative;}
        .top .title{ font-size:18px; color:#fff; font-family:\5FAE\8F6F\96C5\9ED1; position:absolute; left:20px; top:26px;}
        .top .out{ position:absolute; top:30px; right:20px; font-size:12px; color:#fff;}
        .top .out a{ color:#fff; text-decoration:none;}
        .panel-body{
            overflow: hidden;
        }
         *{ margin:0px; padding:0px; list-style:none;font-size: 12px;font-family: 宋体;}
        .line20{ clear:both; font-size:0px; height:20px; overflow:hidden; }
        .nlist-1 {line-height: 45px;color: #444;font-size: 14px}
        .nlist-1 ul {padding: 0 0 0 20px;overflow:hidden;}
        .nlist-1 ul:after {clear: both;content: ".";display: block;height: 0;visibility: hidden}
        .nlist-1 ul li {float: left;margin-right: 10px;width: 32%;overflow: hidden;white-space: nowrap;text-overflow: ellipsis;}
        .nlist-2 {line-height: 30px;border: 1px solid #ebebeb;color: #444;font-size: 14px;}
        .nlist-2 h3 {margin: 0;padding: 0 0 0 20px;font-size: 12px;font-weight: bold;color: #333;line-height: 34px;height: 34px}
        .nlist-2 h3 i {display: inline-block;margin-right: 3px;width: 14px;height: 16px;vertical-align: middle;background: url(/images/skin_icons.png) -56px -112px no-repeat;overflow: hidden}
        .nlist-2 ul {padding: 0 0 10px 20px;overflow:hidden;}
        .nlist-2 p{ padding-left:20px;}
        .nlist-2 ul:after {clear: both;content: ".";display: block;height: 0;visibility: hidden}
        .nlist-2 ul li {float: left;margin-right: 10px;width: 32%;overflow: hidden;white-space: nowrap;text-overflow: ellipsis}
        a:link {
            text-decoration: none;
        }
        a:visited {
            text-decoration: none;
        }
        a:hover {
            text-decoration: none;
        }
        a:active {
            text-decoration: none;
        }
    </style>
    <script>

        var url;
        function openTab(text, url, iconCls) {
            if ($("#tabs").tabs("exists", text)) {
                $("#tabs").tabs("select", text);
            } else {
                var content = "<iframe frameborder=0 scrolling='yes' style='width:100%;height:100%;' src='" + url + "'></iframe>";
                $("#tabs").tabs("add", {
                    title: text,
                    iconCls: iconCls,
                    closable: true,
                    content: content
                })
            }
        }
        function loginOut(){
            $.messager.confirm('提示', '确定要退出登录吗?', function (r) {
                if (r) {
                    window.location.href="/login/loginOut";
                }
            });
        }
    </script>

</head>
<body class="easyui-layout">
    <div class="top"  region="north"><span class="title">基于golang的easyui后台管理系统</span><span class="out">欢迎&nbsp;&nbsp;<a href='javascript:void(0)' onclick='about()'>admin</a>&nbsp;&nbsp;登录&nbsp;&nbsp;<a onclick="loginOut()" href="javascript:void(0)">退出</a></span></div>
    <div region="center" style="overflow: hidden" id="center">
        <div class="easyui-tabs" fit="true" id="tabs">
            <div title="首页" data-options="iconCls:'icon-home'" id="main">
                
            </div>
        </div>
    </div>
<div region="west" style="width:200px; overflow-y:auto; overflow-x:auto;;height: 500px" title="导航菜单" split="true">
    <div class="easyui-accordion" data-options="fit:true,border:false">
        <div title="会员管理" data-options="iconCls:'icon-wrench'" style="padding:10px">
            <a href="javascript:openTab('会员管理','/user/index','icon-user_home')" class="easyui-linkbutton" data-options="plain:true,iconCls:'icon-user_home'">会员管理</a><br/>
        </div>
    </div>
</div>
</body>
</html>

删除:

新增/修改会员:

app.conf配置文件:

appname = easyui_crud
httpport = 8080
runmode = dev

#数据库配置
db.host = 192.168.20.132
db.port = 3306
db.user = root
db.pass = root
db.name = test
db.timezone = Asia/Shanghai

base.go主要放置一些公共操作:

package controllers

import (
    "github.com/astaxie/beego"
)

type BaseController struct {
    beego.Controller
}

func (this *BaseController) Rsp(status bool, str string) {
    this.Data["json"] = &map[string]interface{}{"succ": status, "msg": str}
    this.ServeJSON()
}

userController:

package controllers

import (
    m "easyui_crud/models"
    "fmt"
)

type UserController struct {
    BaseController
}

func (this *UserController) Index() {
    user := this.GetSession("userinfo")
    if user != nil {
        this.Data["userinfo"] = user
        this.TplName = "main.html"
        return
    }
    this.Redirect("/", 302)
}

func (this *UserController) UserIndex() {
    this.TplName = "user/usermanage.html"
}

func (this *UserController) UserList() {
    page, _ := this.GetInt64("page")
    pageSize, _ := this.GetInt64("rows")
    u := m.User{}
    if this.GetString("id") != "" {
        u.Id, _ = this.GetInt("id")
    }
    if this.GetString("name") != "" {
        u.Name = this.GetString("name")
    }
    if this.GetString("phone") != "" {
        u.Phone = this.GetString("phone")
    }
    nodes, cnt := m.GetUserList(page, pageSize, &u)
    this.Data["json"] = &map[string]interface{}{"total": cnt, "rows": &nodes}
    this.ServeJSON()
}

func (this *UserController) UserDel() {
    idstr := this.GetString("ids")
    err := m.DelUser(idstr)
    if err != nil {
        this.Rsp(false, err.Error())
    } else {
        this.Rsp(true, "删除成功")
    }
}

func (this *UserController) UserAdd() {
    u := m.User{}
    u.Id, _ = this.GetInt("Id")
    if err := this.ParseForm(&u); err != nil {
        this.Rsp(false, err.Error())
        return
    }
    id, err := m.AddUser(&u)
    if err == nil && id > 0 {
        this.Rsp(true, "新增成功")
        return
    } else {
        this.Rsp(false, err.Error())
        return
    }
}

func (this *UserController) UserUpdate() {
    u := m.User{}
    if err := this.ParseForm(&u); err != nil {
        this.Rsp(false, err.Error())
        return
    }
    id, err := m.UpdateUser(&u)
    if err == nil && id > 0 {
        this.Rsp(true, "修改成功")
        return
    } else {
        this.Rsp(false, err.Error())
        return
    }

}

func (this *UserController) UserUpload() {

    f, fh, err := this.GetFile("uploadFile")
    defer f.Close()
    if err != nil {
        fmt.Println("get file error ", err)
        this.Data["json"] = &map[string]interface{}{"path": "", "succ": false}
        this.ServeJSON()
    } else {
        fmt.Println(fh.Filename)
        this.SaveToFile("uploadFile", "static/upload/"+fh.Filename)
        this.Data["json"] = &map[string]interface{}{"path": "/static/upload/" + fh.Filename, "succ": true}
        this.ServeJSON()
    }

}

models下的init主要用来进行数据库初始化:

package models

import (
    "net/url"

    "github.com/astaxie/beego"
    "github.com/astaxie/beego/orm"
    _ "github.com/go-sql-driver/mysql"
)

func init() {
    dbhost := beego.AppConfig.String("db.host")
    dbport := beego.AppConfig.String("db.port")
    dbname := beego.AppConfig.String("db.name")
    dbuser := beego.AppConfig.String("db.user")
    dbpass := beego.AppConfig.String("db.pass")
    timezone := beego.AppConfig.String("db.timezone")

    if dbport == "" {
        dbport = "3306"
    }
    dsn := dbuser + ":" + dbpass + "@tcp(" + dbhost + ":" + dbport + ")/" + dbname + "?charset=utf8"
    if timezone != "" {
        dsn = dsn + "&loc=" + url.QueryEscape(timezone)
    }
    orm.RegisterDataBase("default", "mysql", dsn, 5, 30)
    if beego.AppConfig.String("runmode") == "dev" {
        orm.Debug = true
    }
}

user models,user类的增删改查具体实现封装:

package models

import (
    "errors"
    "fmt"
    "log"
    "strconv"
    "strings"
    "time"

    "github.com/astaxie/beego/orm"
    "github.com/astaxie/beego/validation"
)

type User struct {
    Id      int
    Name    string `form:"name" valid:"Required;MaxSize(20);MinSize(6)"`
    Pass    string `form:"pass" valid:"Required;MaxSize(20);MinSize(6)"`
    Email   string `form:"email" valid:"Required;Email"`
    Phone   string `form:"phone" valid:"Required;Mobile"`
    Image   string `form:"image" valid:"MaxSize(50);MinSize(6)"`
    Addr    string `form:"addr" valid:"MaxSize(30)" form:"name"`
    Regtime string
    Birth   string `form:"birth"`
    Remark  string `valid:"MaxSize(200)" form:"remark"`
}

func init() {
    orm.RegisterModel(new(User))
}

func (u *User) TableName() string {
    return "t_user"
}

func (this *User) ToString() string {
    return fmt.Sprintf("Id:%d\tName:%s", this.Id, this.Name)
}

func checkUser(u *User) (err error) {
    valid := validation.Validation{}
    b, _ := valid.Valid(&u)
    if !b {
        for _, err := range valid.Errors {
            log.Println(err.Key, err.Message)
            return errors.New(err.Message)
        }
    }
    return nil
}

func GetUserList(page int64, pageSize int64, user *User) (userlist []*User, count int64) {
    o := orm.NewOrm()
    qs := o.QueryTable("t_user")
    var offset int64
    if page > 1 {
        offset = (page - 1) * pageSize
    }
    if user.Id != 0 {
        qs = qs.Filter("id__exact", user.Id)
    }
    if user.Phone != "" {
        qs = qs.Filter("phone__contains", user.Phone)
    }
    if user.Name != "" {
        qs = qs.Filter("name__contains", user.Name)
    }
    qs.Limit(pageSize, offset).OrderBy("-Id").All(&userlist)
    count, _ = qs.Count()
    return userlist, count
}

func DelUser(idstr string) error {
    ids := strings.Split(idstr, ",")
    num, err := orm.NewOrm().QueryTable("t_user").Filter("id__in", ids).Delete()
    if num > 0 && err == nil {
        return nil
    } else {
        return err
    }
}

func AddUser(u *User) (int64, error) {
    if err := checkUser(u); err != nil {
        return 0, err
    }
    o := orm.NewOrm()
    user := new(User)
    user.Name = u.Name
    user.Email = u.Email
    user.Phone = u.Phone
    user.Image = u.Image
    user.Addr = u.Addr

    tm2, _ := time.Parse("2006-02-02", u.Birth) //日期字符串转为时间戳
    user.Birth = strconv.FormatInt(tm2.Unix(), 10)

    user.Remark = u.Remark
    user.Regtime = strconv.FormatInt(time.Now().Unix(), 10) //获取当前时间戳
    id, err := o.Insert(user)
    return id, err
}

func UpdateUser(u *User) (int64, error) {
    if err := checkUser(u); err != nil {
        return 0, err
    }
    o := orm.NewOrm()
    user := make(orm.Params)
    if len(u.Name) > 0 {
        user["Name"] = u.Name
    }
    if len(u.Phone) > 0 {
        user["Phone"] = u.Phone
    }
    if len(u.Addr) > 0 {
        user["Addr"] = u.Addr
    }
    if len(u.Email) > 0 {
        user["Email"] = u.Email
    }
    if len(u.Birth) > 0 {
        tm, _ := time.Parse("2006-02-02", u.Birth) //日期字符串转为时间戳
        user["Birth"] = strconv.FormatInt(tm.Unix(), 10)
    }
    if len(u.Image) > 0 {
        user["Image"] = u.Image
    }
    if len(u.Remark) > 0 {
        user["Remark"] = u.Remark
    }
    if len(user) == 0 {
        return 0, errors.New("update field is empty")
    }
    var table User
    num, err := o.QueryTable(table).Filter("Id", u.Id).Update(user)
    return num, err
}

func GetUserByUsername(username string) (user User) {
    user = User{Name: username}
    o := orm.NewOrm()
    o.Read(&user, "Name")
    return user
}

usermanage.html文件为用户tab页面:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>crud测试</title>
    <link rel="stylesheet" type="text/css" href="/static/js/jquery-easyui-1.4.3/themes/default/easyui.css">
    <link rel="stylesheet" type="text/css" href="/static/js/jquery-easyui-1.4.3/themes/icon.css">
    <script type="text/javascript" src="/static/js/jquery-easyui-1.4.3/jquery.min.js"></script>
    <script type="text/javascript" src="/static/js/jquery-easyui-1.4.3/jquery.easyui.min.js"></script>
    <script type="text/javascript" src="/static/js/jquery-easyui-1.4.3/locale/easyui-lang-zh_CN.js"></script>
    <script type="text/javascript" src="/static/js/plugin/moment.js"></script>
    <script src="/static/js/jquery-file-upload/js/vendor/jquery.ui.widget.js"></script>
    <script src="/static/js/jquery-file-upload/js/jquery.iframe-transport.js"></script>
    <script src="/static/js/jquery-file-upload/js/jquery.fileupload.js"></script>
</head>
<body>

<table id="dg" title="会员管理" fitColumns="true" pagination="true" rownumbers="true" nowrap="true" class="easyui-datagrid"
         fit="true" toolbar="#tb"
       data-options="pageSize:25,pageList:[10,15,25,50,100]">
    <thead>
    <tr>
        <th field="cb" checkbox="true" align="center"></th>
        <th data-options="field:'Id',width:100,align:'center'">编号</th>
        <th data-options="field:'Phone',width:130,align:'center'">手机</th>
        <th data-options="field:'Name',width:100,align:'center'">姓名</th>
        <th data-options="field:'Addr',width:130,align:'center'">地址</th>
        <th data-options="field:'Email',width:130,align:'center'">邮箱</th>
        <th data-options="field:'Regtime',width:130,align:'center',formatter:formatTime">注册时间</th>
        <th data-options="field:'Birth',width:130,align:'center',formatter:formatBirth">生日</th>
        <th data-options="field:'Image',width:130,align:'center',formatter:formatImg">头像</th>
        <th data-options="field:'Remark',width:130,align:'center'">备注</th>
        <th field="_id" width="140" align="center" data-options="formatter:formatOperate">操作</th>
    </tr>
    </thead>
</table>

<div id="tb">
    <div style="margin-top: 5px;margin-bottom: 5px;">
        <a href="javascript:openUserAddDialog()" class="easyui-linkbutton"
           data-options="plain:true,iconCls:'icon-user_add'" plain="true">添加</a>
        <a href="javascript:delNums()" class="easyui-linkbutton"
           data-options="plain:true,iconCls:'icon-user_delete'" plain="true">删除</a>
    </div>
    <div style="margin-top: 5px;">
        <table>
            <tr>
                <td align="right">会员编号:</td>
                <td align="right"><input class="easyui-numberbox" id="s_id" size="20" style="width: 150px;"></td>
                <td align="right">手机号:</td>
                <td align="right"><input class="easyui-numberbox" id="s_phone" size="20" style="width: 150px;"></td>
                <td align="right">昵称:</td>
                <td align="right"><input class="easyui-textbox" id="s_name" size="20" style="width: 150px;"></td>
                <td align="right"><a href="javascript:searchUser()" class="easyui-linkbutton"
                                     data-options="plain:true,iconCls:'icon-2012092109942'">查询</a></td>
            </tr>
        </table>
    </div>
</div>


<div id="dlg" class="easyui-dialog" style="width: 680px;height:630px;padding: 5px 5px" closed="true" buttons="#dlg-buttons" data-options="modal:true"
     overflow-y="scroll">
    <form id="form" method="post">
        <table style="margin: 5px 5px;" cellspacing="5px">
            <tr>
                <td align="right" style="width: 140px;">手机号:</td>
                <td align="left">
                    <input id="phone" name="phone" type="text" class="easyui-textbox" data-options="required:true"
                           style="width: 150px;">
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td align="right" style="width: 140px;">姓名:</td>
                <td align="left">
                    <input id="name" type="text" name="name" class="easyui-textbox" data-options="required:true"
                           style="width: 150px;"></span>
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td align="right" style="width: 140px;">地址:</td>
                <td align="left">
                    <input id="addr" name="addr" type="text" class="easyui-textbox" style="width: 150px;" data-options="required:true">
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td align="right" style="width: 140px;">邮箱:</td>
                <td align="left">
                    <input id="email" type="text" name="email" class="easyui-textbox" style="width: 150px;" data-options="required:true">
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td align="right" style="width: 140px;">生日:</td>
                <td align="left">
                    <input id="birth" type="text" name="birth" class="easyui-datebox" style="width: 150px;" data-options="required:true">
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td align="right" style="width: 140px;">头像:</td>
                <td align="left">
                    <input type="file" id="file_upload"/>
                    <input type="hidden" id="file_path" name="image"/>
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td valign="top" align="left" style="width: 140px;">&nbsp;</td>
                <td align="left">
                    <img id="newImg" style="width: 100px;height: 110px;" src="/static/img/default.gif">&nbsp;<span id="errMsg" style="color: red"></span>
                </td>
                <td align="left">&nbsp;</td>
            </tr>
            <tr>
                <td align="right" style="width: 140px;">备注:</td>
                <td align="left">
                    <textarea rows="10" cols="65" id="remark" name="remark" placeholder="请简要描述您的专业经验"></textarea>
                </td>
            </tr>
        </table>
    </form>
</div>
<div id="dlg-buttons">
    <a href="javascript:save()" class="easyui-linkbutton" iconCls="icon-ok" plain="true">提交</a>
    <a href="javascript:cancel()" class="easyui-linkbutton" iconCls="icon-cancel" plain="true">取消</a>
</div>


<script type="text/javascript">
    var url;
    jQuery(function(){
        jQuery("#dg").datagrid({
            url:"/user/list"
        });
    });
    function formatOperate(value, row, index){
        var del = "<a href='#' onclick='javascript:del("+row.Id+")'>删除</a>";
        var update = "<a href='#' onclick='javascript:openUpdateDlg("+index+")'>修改</a>";
        return del + "&nbsp;" + update;
    }
    function formatImg(value, row, index){
        if(value)return "<span title='"+value+"'>"+value.substr(0,25)+"</span>";
    }
    function del(id){
        jQuery.messager.confirm("系统提示","您确认要删除该会员吗?",function(r){
            if(r){
                jQuery.post("/user/del",{ids:([id]).join(",")},function(result){
                   jQuery.messager.show({title:"提示",msg:result.msg});
                   jQuery("#dg").datagrid("reload");
                },"json");
            }
        });
    }
    function delNums(){
        var selectedRows=jQuery("#dg").datagrid('getSelections');
        if(selectedRows.length==0){
            jQuery.messager.show({title:"提示",msg:"请选择要删除的会员!"});
            return;
        }
        var strIds=[];
        for(var i=0;i<selectedRows.length;i++){
            strIds.push(selectedRows[i].Id);
        }
        var ids=strIds.join(",");
        jQuery.messager.confirm("系统提示","您确认要删除这<span style='color: red'>"+selectedRows.length+"</span>条数据吗?",function(r){
            if(r){
                jQuery.post("/user/del",{ids:ids},function(result){
                   jQuery.messager.show({title:"提示",msg:result.msg});
                   jQuery("#dg").datagrid("reload");
                },"json");
            }
        });
    }
    function openUserAddDialog(){
        jQuery("#form").form("reset");
        jQuery("#dlg").dialog("open").dialog("setTitle", "新增会员");
        url = "/user/add";
        jQuery("#file_upload").attr("name","uploadFile");
        jQuery("#newImg").attr("src","/static/img/default.gif");
    }
    function save(){
        jQuery("#form").form("submit", {
            url: url,
            onSubmit: function (param) {
                if (!jQuery(this).form("validate")) {
                    return false;
                }
                return true;
            },
            success: function (result) {   //result返回为String类型,需用eval函数处理为Object型对象再判断
                result = JSON.parse(result);
                jQuery.messager.show({title:"提示",msg:result.msg});
                jQuery("#dg").datagrid("reload");
                jQuery("#dlg").dialog("close");
                jQuery("#form").form("reset");
            }
        });
    }
    function cancel(){
        jQuery("#form").form("reset");
        jQuery("#dlg").dialog("close");
    }
    function formatTime(value, row, index){
        if(value)return moment.unix(value).format("YYYY-MM-DD HH:mm:ss");
    }
    function formatBirth(value, row, index){
        if(value)return moment.unix(value).format("YYYY-MM-DD");
    }
    function dispValue(row){
        jQuery("#phone").textbox("setText",row.Phone);
        jQuery("#name").textbox("setText",row.Name);
        jQuery("#addr").textbox("setText",row.Addr);
        jQuery("#email").textbox("setText",row.Email);
        jQuery("#birth").datebox("setValue",row.Birth?moment.unix(row.Birth).format("YYYY-MM-DD"):"");
        jQuery("#remark").val(row.Remark);
        jQuery("#newImg").attr("src",row.Image?row.Image:"/static/img/default.gif");
    }
    function openUpdateDlg(index){
        var row = jQuery("#dg").datagrid('getData').rows[index];
        dispValue(row);
        jQuery("#dlg").dialog("open").dialog("setTitle", "修改会员");
        url = "/user/update?Id="+row.Id;
        jQuery("#file_upload").attr("name","uploadFile");
    }
    jQuery("#file_upload").fileupload({
        iframe: true,
        dataType: 'json',
        url: "/user/upload",//文件上传地址,当然也可以直接写在input的data-url属性内
        done: function (e, result) {
            if(result.result.succ){
                jQuery("#newImg").attr("src",result.result.path);
                jQuery("#file_path").val(result.result.path);
            }else{
                jQuery("#errMsg").html("文件上传出错");
            }
        }
    });
</script>
</body>
</html>

main.go启动文件:

package main

import (
    _ "easyui_crud/models"
    _ "easyui_crud/routers" //调用routes下的Init()方法来注册路由

    "github.com/astaxie/beego"
)

const VERSION = "1.0.0"

func main() {
    beego.AppConfig.Set("version", VERSION)
    beego.Run() //运行程序
}

用户登录、session拦截:

login.html:

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录页</title>
<script src="/static/bootstrap3/js/jquery-1.11.2.min.js"></script>
<STYLE>
body{
    background: #ebebeb;
    font-family: "Helvetica Neue","Hiragino Sans GB","Microsoft YaHei","\9ED1\4F53",Arial,sans-serif;
    color: #222;
    font-size: 12px;
}
*{padding: 0px;margin: 0px;}
.top_div{
    background: #008ead;
    width: 100%;
    height: 400px;
}
.ipt{
    border: 1px solid #d3d3d3;
    padding: 10px 10px;
    width: 290px;
    border-radius: 4px;
    padding-left: 35px;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
    -webkit-transition: border-color ease-in-out .15s,-webkit-box-shadow ease-in-out .15s;
    -o-transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
    transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s
}
.ipt:focus{
    border-color: #66afe9;
    outline: 0;
    -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6)
}
.u_logo{
    background: url("/static/img/username.png") no-repeat;
    padding: 10px 10px;
    position: absolute;
    top: 43px;
    left: 40px;

}
.p_logo{
    background: url("/static/img/password.png") no-repeat;
    padding: 10px 10px;
    position: absolute;
    top: 12px;
    left: 40px;
}
a{
    text-decoration: none;
}
.tou{
    background: url("/static/img/tou.png") no-repeat;
    width: 97px;
    height: 92px;
    position: absolute;
    top: -87px;
    left: 140px;
}
.left_hand{
    background: url("/static/img/left_hand.png") no-repeat;
    width: 32px;
    height: 37px;
    position: absolute;
    top: -38px;
    left: 150px;
}
.right_hand{
    background: url("/static/img/right_hand.png") no-repeat;
    width: 32px;
    height: 37px;
    position: absolute;
    top: -38px;
    right: -64px;
}
.initial_left_hand{
    background: url("/static/img/hand.png") no-repeat;
    width: 30px;
    height: 20px;
    position: absolute;
    top: -12px;
    left: 100px;
}
.initial_right_hand{
    background: url("/static/img/hand.png") no-repeat;
    width: 30px;
    height: 20px;
    position: absolute;
    top: -12px;
    right: -112px;
}
.left_handing{
    background: url("/static/img/left-handing.png") no-repeat;
    width: 30px;
    height: 20px;
    position: absolute;
    top: -24px;
    left: 139px;
}
.right_handinging{
    background: url("/static/img/right_handing.png") no-repeat;
    width: 30px;
    height: 20px;
    position: absolute;
    top: -21px;
    left: 210px;
}

</STYLE>
     
<SCRIPT type="text/javascript">
$(function(){
    //得到焦点
    $("#password").focus(function(){
        $("#left_hand").animate({
            left: "150",
            top: " -38"
        },{step: function(){
            if(parseInt($("#left_hand").css("left"))>140){
                $("#left_hand").attr("class","left_hand");
            }
        }}, 2000);
        $("#right_hand").animate({
            right: "-64",
            top: "-38px"
        },{step: function(){
            if(parseInt($("#right_hand").css("right"))> -70){
                $("#right_hand").attr("class","right_hand");
            }
        }}, 2000);
    });
    //失去焦点
    $("#password").blur(function(){
        $("#left_hand").attr("class","initial_left_hand");
        $("#left_hand").attr("style","left:100px;top:-12px;");
        $("#right_hand").attr("class","initial_right_hand");
        $("#right_hand").attr("style","right:-112px;top:-12px");
    });
});

function checkForm(){
    var userName=$("#userName").val();
    var password=$("#password").val();
    if(userName==null||userName==""){
        $("#error").html("用户名不能为空!");
        return false;
    }
    if(password==null||password==""){
        $("#error").html("密码不能为空!");
        return false;
    }
    return true;
}
</SCRIPT>
</head>
<body>
<DIV class="top_div">
</DIV>
<form action="/" method="post" onsubmit="return checkForm()">
    <DIV style="background: rgb(255, 255, 255); margin: -100px auto auto; border: 1px solid rgb(231, 231, 231); border-image: none; width: 400px; height: 200px; text-align: center;">
        <DIV style="width: 165px; height: 96px; position: absolute;">
            <DIV class="tou">
            </DIV>
            <DIV class="initial_left_hand" id="left_hand">
            </DIV>
            <DIV class="initial_right_hand" id="right_hand">
            </DIV>
        </DIV>
        <P style="padding: 30px 0px 10px; position: relative;">
            <SPAN class="u_logo"></SPAN>
            <INPUT id="userName" name="userName" class="ipt" type="text" placeholder="请输入用户名" value="{{.user.Name}}"> 
        </P>
        <P style="position: relative;">
            <SPAN class="p_logo"></SPAN>         
            <INPUT id="password" name="password" class="ipt"  type="password" placeholder="请输入密码" value="{{.user.Pass}}">   
          </P>
        <DIV style="height: 50px; line-height: 50px; margin-top: 30px; border-top-color: rgb(231, 231, 231); border-top-width: 1px; border-top-style: solid;">
            <P style="margin: 0px 35px 20px 45px;">
            <SPAN style="float: left;">golang开源博客系统</SPAN> 
            <span><font color="red" id="error">{{.errmsg}}</font></span>
            <SPAN style="float: right;"> 
                  <input type="submit" style="background: rgb(0, 142, 173); padding: 7px 10px; border-radius: 4px; border: 1px solid rgb(26, 117, 152); border-image: none; color: rgb(255, 255, 255); font-weight: bold;" value="登录"/> 
             </SPAN>         
             </P>
        </DIV>
    </DIV>
</form>
<div style="text-align:center;padding-top: 30px">
Copyright © 2012-2016 Java知识分享网 版权所有
</div>
</body>
</html>

loginController:

// login
package controllers

import (
    "fmt"
)

type LoginController struct {
    BaseController
}

func (this *LoginController) UserIndex() {
    this.TplName = "login.html"
}

func (this *LoginController) UserLogin() {
    username := this.GetString("userName")
    password := this.GetString("password")
    user, err := CheckLogin(username, password)
    if err == nil {
        this.Redirect("/main", 302)
        user.Pass = "" //将密码置空
        fmt.Println(user)
        this.SetSession("userinfo", user)
    } else {
        this.Data["user"] = user
        this.Data["errmsg"] = err.Error()
        this.TplName = "login.html"
    }
}

lib下的stringutil.go工具类:

package lib

import (
    "crypto/md5"
    "encoding/hex"
)

//create md5 string
func Strtomd5(s string) string {
    h := md5.New()
    h.Write([]byte(s))
    rs := hex.EncodeToString(h.Sum(nil))
    return rs
}

//password hash function
func Pwdhash(str string) string {
    return Strtomd5(str)
}

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