JFinal Web开发学习(九)后台添加前台显示博客

2023-02-24 19:08:14

效果：
发博客：

显示博客：

后台：使用hui-admin，文章编辑器是百度开源的ueditor
前台：使用layui前端框架
1.写控制器BlogController
controller包中

package cn.pangpython.controller;

import com.jfinal.core.Controller;

import cn.pangpython.model.Blog;

import cn.pangpython.utils.DateUtils;

/**

 * @author pangPython

 *  博客模块控制器

 *

 */

public class BlogController extends Controller{

    //访问URL：/blog/

    public void index(){

    }

    //访问URL：/blog/adminAddBlog

    //后台添加博客文章

    public void adminAddBlog(){

        Blog blog = getModel(Blog.class);

        blog.setTitle(getPara("blog.title"));

        blog.setAuthor(getPara("blog.author"));

        blog.setContent(getPara("blog.content"));

        blog.setCreateDate(DateUtils.getNowTime());

        blog.setUpdateDate(DateUtils.getNowTime());

        if(blog.save()){

            renderText("添加成功！");

        }else{

            renderText("添加失败！");

        }

    }

    // 访问URL：/blog/article/1

    //前台根据传入id显示博客页面

    public void article(){

            //获取博客id

            int blog_id = getParaToInt(0);

            //查询实例化blog对象

            Blog blog = Blog.dao.findById(blog_id);

            //设置模板携带参数

            setAttr("blog", blog);

            //渲染模板

            render("../admin/article.html");

    }

}

2.写后台html模板
后台发布文章页面
WebRoot/admin/article-add.html

<!--_meta 作为公共模版分离出去-->

<!DOCTYPE HTML>

<html>

<head>

<meta charset="utf-8">

<meta name="renderer" content="webkit|ie-comp|ie-stand">

<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">

<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" />

<meta http-equiv="Cache-Control" content="no-siteapp" />

<LINK rel="Bookmark" href="/favicon.ico" >

<LINK rel="Shortcut Icon" href="/favicon.ico" />

<!--[if lt IE 9]>

<script type="text/javascript" src="lib/html5.js"></script>

<script type="text/javascript" src="lib/respond.min.js"></script>

<script type="text/javascript" src="lib/PIE_IE678.js"></script>

<![endif]-->

<link rel="stylesheet" type="text/css" href="static/h-ui/css/H-ui.min.css" />

<link rel="stylesheet" type="text/css" href="static/h-ui.admin/css/H-ui.admin.css" />

<link rel="stylesheet" type="text/css" href="lib/Hui-iconfont/1.0.7/iconfont.css" />

<link rel="stylesheet" type="text/css" href="lib/icheck/icheck.css" />

<link rel="stylesheet" type="text/css" href="static/h-ui.admin/skin/default/skin.css" id="skin" />

<link rel="stylesheet" type="text/css" href="static/h-ui.admin/css/style.css" />

<!--[if IE 6]>

<script type="text/javascript" src="http://lib.h-ui.net/DD_belatedPNG_0.0.8a-min.js" ></script>

<script>DD_belatedPNG.fix('*');</script>

<![endif]-->

<!--/meta 作为公共模版分离出去-->

<title>新增文章 - 资讯管理 - H-ui.admin v2.3</title>

</head>

<body>

<article class="page-container">

    <form class="form form-horizontal" id="form-article-add" action="/blog/adminAddBlog" method="POST">

        <div class="row cl">

            <label class="form-label col-xs-4 col-sm-2"><span class="c-red">*</span>文章标题：</label>

            <div class="formControls col-xs-8 col-sm-9">

                <input type="text" class="input-text" value="" placeholder="" id="blog.title" name="blog.title">

            </div>

        </div>

        <div class="row cl">

            <label class="form-label col-xs-4 col-sm-2">作者：</label>

            <div class="formControls col-xs-8 col-sm-9">

                <input type="text" class="input-text" value="" placeholder="" id="blog.author" name="blog.author">

            </div>

        </div>

        <div class="row cl">

            <label class="form-label col-xs-4 col-sm-2">文章内容：</label>

            <div class="formControls col-xs-8 col-sm-9">

                <script id="editor"  name="blog.content" type="text/plain" style="width:100%;height:400px;"></script>

            </div>

        </div>

        <div class="row cl">

            <div class="col-xs-8 col-sm-9 col-xs-offset-4 col-sm-offset-2">

                <button onClick="article_save();" class="btn btn-secondary radius" type="submit"><i class="Hui-iconfont"></i> 发布</button>

                <button onClick="removeIframe();" class="btn btn-default radius" type="button">&nbsp;&nbsp;取消&nbsp;&nbsp;</button>

            </div>

        </div>

    </form>

</article>

<!--_footer 作为公共模版分离出去-->

<script type="text/javascript" src="lib/jquery/1.9.1/jquery.min.js"></script>

<script type="text/javascript" src="lib/layer/2.1/layer.js"></script>

<script type="text/javascript" src="lib/icheck/jquery.icheck.min.js"></script>

<script type="text/javascript" src="lib/jquery.validation/1.14.0/jquery.validate.min.js"></script>

<script type="text/javascript" src="lib/jquery.validation/1.14.0/validate-methods.js"></script>

<script type="text/javascript" src="lib/jquery.validation/1.14.0/messages_zh.min.js"></script>

<script type="text/javascript" src="static/h-ui/js/H-ui.js"></script>

<script type="text/javascript" src="static/h-ui.admin/js/H-ui.admin.js"></script>

<!--/_footer /作为公共模版分离出去-->

<!--请在下方写此页面业务相关的脚本-->

<script type="text/javascript" src="lib/webuploader/0.1.5/webuploader.min.js"></script>

<script type="text/javascript" src="lib/ueditor/1.4.3/ueditor.config.js"></script>

<script type="text/javascript" src="lib/ueditor/1.4.3/ueditor.all.min.js"> </script>

<script type="text/javascript" src="lib/ueditor/1.4.3/lang/zh-cn/zh-cn.js"></script>

<script type="text/javascript">

$(function(){

    $('.skin-minimal input').iCheck({

        checkboxClass: 'icheckbox-blue',

        radioClass: 'iradio-blue',

        increaseArea: '20%'

    });

    $list = $("#fileList"),

    $btn = $("#btn-star"),

    state = "pending",

    uploader;

    var uploader = WebUploader.create({

        auto: true,

        swf: 'lib/webuploader/0.1.5/Uploader.swf',

        // 文件接收服务端。

        server: 'fileupload.php',

        // 选择文件的按钮。可选。

        // 内部根据当前运行是创建，可能是input元素，也可能是flash.

        pick: '#filePicker',

        // 不压缩image, 默认如果是jpeg，文件上传前会压缩一把再上传！

        resize: false,

        // 只允许选择图片文件。

        accept: {

            title: 'Images',

            extensions: 'gif,jpg,jpeg,bmp,png',

            mimeTypes: 'image/*'

        }

    });

    uploader.on( 'fileQueued', function( file ) {

        var $li = $(

            '<div id="' + file.id + '" class="item">' +

                '<div class="pic-box"><img></div>'+

                '<div class="info">' + file.name + '</div>' +

                '<p class="state">等待上传...</p>'+

            '</div>'

        ),

        $img = $li.find('img');

        $list.append( $li );

        // 创建缩略图

        // 如果为非图片文件，可以不用调用此方法。

        // thumbnailWidth x thumbnailHeight 为 100 x 100

        uploader.makeThumb( file, function( error, src ) {

            if ( error ) {

                $img.replaceWith('<span>不能预览</span>');

                return;

            }

            $img.attr( 'src', src );

        }, thumbnailWidth, thumbnailHeight );

    });

    // 文件上传过程中创建进度条实时显示。

    uploader.on( 'uploadProgress', function( file, percentage ) {

        var $li = $( '#'+file.id ),

            $percent = $li.find('.progress-box .sr-only');

        // 避免重复创建

        if ( !$percent.length ) {

            $percent = $('<div class="progress-box"><span class="progress-bar radius"><span class="sr-only" style="width:0%"></span></span></div>').appendTo( $li ).find('.sr-only');

        }

        $li.find(".state").text("上传中");

        $percent.css( 'width', percentage * 100 + '%' );

    });

    // 文件上传成功，给item添加成功class, 用样式标记上传成功。

    uploader.on( 'uploadSuccess', function( file ) {

        $( '#'+file.id ).addClass('upload-state-success').find(".state").text("已上传");

    });

    // 文件上传失败，显示上传出错。

    uploader.on( 'uploadError', function( file ) {

        $( '#'+file.id ).addClass('upload-state-error').find(".state").text("上传出错");

    });

    // 完成上传完了，成功或者失败，先删除进度条。

    uploader.on( 'uploadComplete', function( file ) {

        $( '#'+file.id ).find('.progress-box').fadeOut();

    });

    uploader.on('all', function (type) {

        if (type === 'startUpload') {

            state = 'uploading';

        } else if (type === 'stopUpload') {

            state = 'paused';

        } else if (type === 'uploadFinished') {

            state = 'done';

        }

        if (state === 'uploading') {

            $btn.text('暂停上传');

        } else {

            $btn.text('开始上传');

        }

    });

    $btn.on('click', function () {

        if (state === 'uploading') {

            uploader.stop();

        } else {

            uploader.upload();

        }

    });

    var ue = UE.getEditor('editor');

});

</script>

<!--/请在上方写此页面业务相关的脚本-->

</body>

</html>

前台显示博客页面
WebRoot/blog/article.html

<!doctype html>

<html>

<head>

  <meta charset="utf-8">

  <title>${blog.title?if_exists}</title>

  <meta name="renderer" content="webkit">

  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">

  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">

  <link rel="stylesheet" href="/static/layui/css/layui.css"  media="all">

</head>

<body>

<ul class="layui-nav">

  <li class="layui-nav-item"><a href="">Logo</a></li>

  <li class="layui-nav-item "><a href="">首页</a></li>

  <li class="layui-nav-item layui-this"><a href="">博客</a></li>

  <li class="layui-nav-item"><a href="">关于我们</a></li>

</ul>

<fieldset class="layui-elem-field layui-field-title" style="margin-top: 50px;">

  <legend>BLOG</legend>

</fieldset>

<br>

<div class="layui-main">

<fieldset class="layui-elem-field">

  <legend>${blog.title?if_exists}</legend>

 作者： ${blog.author?if_exists}&nbsp;&nbsp;创建时间：${blog.create_date?if_exists}&nbsp;&nbsp;更新时间：${blog.update_date?if_exists}

    <hr>

  <blockquote class="layui-elem-quote">${blog.content?if_exists}</blockquote>

</fieldset>

</div>

<script src="/static/layui/layui.js"></script>

<script>

//配置自己的js加载路径

layui.config({

        base:'/static/js/modules/'

    }).use('index');

</script>

</body>

</html>

3.配置路由
routers包中
FrontRouters.java
config方法中添加

add("/blog",BlogController.class);

4.简单测试

添加文章：

localhost/admin/index

博客管理->文章管理->添加资讯

注：此处添加文章的方法未做权限控制

查看文章：

localhost/blog/article/1

注：此处article后边是博客id,根据自己添加的博客的id进行查看，此处未做异常处理，试图访问不存在的id后台会报错.

参考原文：https://blog.csdn.net/u012995856/article/details/53457428

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