本篇内容介绍了“D语言怎么创建一个blog项目”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
1.首先拉取skeleton项目为基础,文件命名为myprogect
git clone https://github.com/huntlabs/hunt-skeleton.git myproject cd myproject dub run -v
2.修改项目中config下的application.conf文件中关于数据库的相关配置
hunt.database.default.driver=mysql hunt.database.default.host=127.0.0.1 hunt.database.default.port=3306 //接口 hunt.database.default.database=myblog //数据库名称 hunt.database.default.username=root //数据库用户名 hunt.database.default.password= //数据库密码 hunt.database.default.charset=utf8 hunt.database.default.prefix= hunt.database.default.enabled=true
3.首先实现Blog项目后台管理;确定项目后台功能并在config下创建admin.routes文件定义路由
GET /user/list user.users //用户列表页面 * /user/add user.add //用户添加操作 GET /user/delete user.remove //用户删除操作 GET /user/update user.update //用户修改页面 POST /user/doup user.doupdate //用户修改操作 GET /blog/list blog.blogs //文章列表页面 * /blog/add blog.add //文章添加页面 POST /blog/doadd/ blog/doadd //文章添加操作
4.在source--app下建立Blog模块;在Blog中新建一个model模型,在model下创建Blog.d以及User.d文件，用来存放对应数据表中的数据；
//Blog.d
module app.blog.model.Blog;
import hunt.entity;
import app.model.User;
@Table("blog")
class Blog : Model
{
mixin MakeModel;
@AutoIncrement
@PrimaryKey
int id; //主键,自动增长
long created; //时间
string title; //文章标题
string description; //描述
string picture; //图片
string content; //内容
@OneToOne()
@JoinColumn("user_id")
User user;//通过user_id关联User表
}
//User.d
module app.blog.model.User;
import hunt.entity;
@Table("user")
class User : Model
{
mixin MakeModel;
@AutoIncrement
@PrimaryKey
int id;
string username; //用户名
string password; //密码
string email; //邮箱
}5.以model为基础;在source--app--blog下新建repository文件，创建相应的BlogRepository.d、UserRepository.d文件;对数据进行操作
//BlogRepository.d
module app.blog.repository.BlogRepository;
import app.blog.model.Blog;
import hunt.entity;
class BlogRepository : EntityRepository!(Blog , int){
}
//UserRepository.d
module app.blog.repository.UserRepository;
import app.blog.model.User;
import hunt.entity;
class UserRepository : EntityRepository!(User,int){
}6.在source--app--blog下新建admin文件，在admin中创建BlogController.d、UserController.d来实现后台管理;包括文章的管理以及对用户的浏览、添加、删除、修改
//BlogController.d
module app.blog.controller.admin.BlogController;
import hunt.framework;
import app.blog.form.BlogForm;
import app.blog.model.Blog;
import app.blog.repository.BlogRepository;
import app.blog.repository.UserRepository;
class BlogController : Controller
{
mixin MakeController;
//文章的添加
@Action
string add(BlogForm form)
{
if(request.method == HttpMethod.POST)
{
auto result = form.valid();
if(result.isValid)
{
auto blog = new Blog ;
blog.title = form.tit;
blog.description = form.dept;
blog.picture = form.pic;
blog.content = form.cont;
blog.created = time();
auto repo = new BlogRepository;
repo.save(blog);
return "successed!";
}
view.assign("messages", result.messages());
}
view.assign("blog", (form is null) ? new BlogForm : form);
view.assign("users", (new UserRepository).findAll());//查出User的全部信息
return view.render("blog_add");
}
//文章列表浏览
@Action
string blogs()
{
auto repo = new BlogRepository;
auto blogs = repo.findAll();//查找全部文章信息
view.assign("blogs",blogs);
return view.render("blog_list");//跳转到列表页面
}
}//UserController.d
module app.blog.controller.admin.UserController;
import hunt.framework;
import app.blog.form.UserForm;
import app.blog.model.User;
import app.blog.repository.UserRepository;
class UserController : Controller
{
mixin MakeController;
//用户添加
@Action
string add(UserForm form)
{
if (request.method == HttpMethod.POST)
{
auto result = form.valid();
if(result.isValid)
{
auto user = new User;
user.username = form.um;
user.password = form.pwd;
user.email = form.mail;
auto repo = new UserRepository;
repo.save(user);
return "successed";
}
view.assign("messages",result.messages());
}
view.assign("user",(form is null) ? new UserForm : form);
return view.render("user_add");
}
//用户列表浏览
@Action
string users()
{
auto repo = new UserRepository;
auto users = repo.findAll();
view.assign("users",users);
return view.render("user_list");
}
//用户删除操作
@Action
string remove(int id)
{
auto repo = new UserRepository;
repo.removeById(id);//根据id删除用户信息
return "deleted";
}
//用户修改列表
@Action
string update(int id)
{
auto repo = new UserRepository;
auto user = repo.find(id);//通过id查找要修改的信息
view.assign("user",user);
return view.render("user_up");//跳转到修改页面
}
//用户修改操作
@Action
string doupdate(UserForm form)
{
auto repo = new UserRepository;
auto user = repo.find(form.id.to!int);
user.username = form.um;
user.password = form.pwd;
user.email = form.mail;//进行修改操作
repo.save(user);//保存
return "successed";
}
}7.在view下新建admin，在admin中新建header.html、footer.html、sidebar.html显示列表以及目录的CSS样式;blog_list.html、blog_add.html、user_add.html、user_list.html、user_up.html来实现功能列表;显示部分代码
//blog_list.html
<div class="card-body">
<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>title</th>
<th>name</th>
<th>description</th>
<th>picture</th>
<th>content</th>
</tr>
</thead>
{% for blog in blogs %}
<tbody>
<tr>
<td>{{ blog.title }}</td>
<td>{{ blog.user.username}}</td>
<td>{{ blog.description }}</td>
<td>{{ blog.picture }}</td>
<td>{{ blog.content }} <a href="/admincp/blog/view?id={{ blog.id }}">Read Full</a></td>
</tr>
</tbody>
{% endfor %}
<tfoot>
<tr>
<th>title</th>
<th>name</th>
<th>description</th>
<th>picture</th>
<th>content</th>
</tr>
</tfoot>
</table>
</div>//blog_add.html
<form role="form" method="POST" action="/admincp/blog/add">
<div class="card-body">
{% if messages %}
<div class="form-group">
<ul>
{% for key, message in messages %}
<li>{{ key }} : {{ message }}</li>
{% endfor %}
</ul>
</div>
{% endif %}
<div class="form-group">
<label for="exampleInputPassword1">title</label>
<input type="text" name="tit" value="{{blog.tit}}" class="form-control" id="exampleInputPassword1" placeholder="title">
</div>
<div class="form-group">
<label for="exampleInputEmail1">name</label>
<select name="nm">
<option value="0">-- 请选择 --</option>
{% for user in users %}
<option value="{{ user.id }}" {% if blog.nm %}{% if user.id == int(blog.nm) %} selected {% endif %}{% endif %}>{{ user.username }}</option>
{% endfor %}
</select>
</div>
<div class="form-group">
<label for="exampleInputEmail1">description</label>
<input type="text" name="dept" value="{{blog.dept}}" class="form-control" id="exampleInputEmail1" placeholder="description">
</div>
<div class="form-group">
<label for="exampleInputEmail1">picture</label>
<input type="text" name="pic" class="form-control" id="exampleInputEmail1" placeholder="picture">
</div>
<div class="form-group">
<label for="exampleInputEmail1">content</label>
<input type="text" name="cont" value="{{blog.cont}}" class="form-control" id="exampleInputEmail1" placeholder="content">
</div>
</div>
<!-- /.card-body -->
<div class="card-footer">
<button type="submit" class="btn btn-primary"></a>添加文章</button>
</div>
</form>//user_add.html
</div>
<form role="form" method="POST" action="/admincp/user/add">
<div class="card-body">
{% if messages %}
<div class="form-group">
<ul>
{% for key, message in messages %}
<li>{{ key }} : {{ message }} </li>
{% endfor %}
</ul>
</div>
{% endif %}
<div class="form-group">
<label for="exampleInputEmail1">Username</label>
<input type="text" name="um" value="{{user.um}}" class="form-control" id="exampleInputEmail1" placeholder="username">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Password</label>
<input type="password" name="pwd" value="{{user.pwd}}" class="form-control" id="exampleInputPassword1" placeholder="password">
</div>
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input type="text" name="mail" value="{{user.mail}}" class="form-control" id="exampleInputEmail1" placeholder="Enter email">
</div>
</div>
<!-- /.card-body -->
<div class="card-footer">
<button type="submit" class="btn btn-primary">添加用户</button>
</div>
</form>
</div>//user_list.html
<div class="card-body">
<table id="example2" class="table table-bordered table-hover">
<thead>
<tr>
<th>username</th>
<th>email</th>
<th>Delete</th>
<th>Update</th>
</tr>
</thead>
{% for user in users %}
<tbody>
<tr>
<td>{{ user.username}}</td>
<td>{{ user.email}}</td>
<td><a href="/admincp/user/delete?id={{ user.id }}">Delete</a></td>
<td><a href="/admincp/user/update?id={{ user.id }}">Update</a></td>
</tr>
</tbody>
{% endfor %}
<tfoot>
<tr>
<th>username</th>
<th>email</th>
<th>Delete</th>
<th>Update</th>
</tr>
</tfoot>
</table>
</div>//user_up.html
<form method="POST" action="/admincp/user/doup">
<input name="id" type="hidden" value="{{ user.id }}">
<p>Username:<input name="um" type="text" value="{{ user.username }}"></p>
<p>Password:<input name="pwd" type="password" value="{{ user.password }}"></p>
<p>Email:<input name="mail" type="text" value="{{ user.email }}"></p>
<p> <button type="submit" value="Update"></button></p>
</form>8.在source--app--blog下新建form文件，创建form表单BlogForm.d、UserForm.d文件;与模板页中name的字段值一致;并定义字段的范围；
//BlogForm.d
module app.blog.form.BlogForm;
import hunt.framework;
class BlogForm : Form
{
mixin MakeForm;
string id;
string uid; //与User表关联的user_id
@NotEmpty //name的值不能为空
string nm;
@Length(6,18) //title的值在6到18位之间
string tit;
@Length(10,100) //description的值在10到100位之间
string dept;
string pic; //图片
@Length(10,200) //content的值在10到200位之间
string cont;
}
//UserForm.d
module app.blog.form.UserForm;
import hunt.framework;
class UserForm : Form
{
mixin MakeForm;
string id;
@Length(3, 18) //用户名的值在3到18位之间
string um;
@Length(6, 16) //密码的值在6到16位之间
string pwd;
@Length(6, 32) //邮箱的值在6到32位之间
string mail;
}9.进行Blog项目的前台管理;确定前台能够实现的功能,在config下的routes中定义路由
GET /add blog.add //文章添加页面 POST /blog/add blog.doadd //文章添加操作 GET /blog/delete blog.remove //文章删除操作 GET /blog/list blog.blogs //文章列表浏览页面 POST /blog/doup blog.doupdate //文章修改操作 GET /blog/update blog.update //文章修改页面
10.在source--app--controller下创建BlogController.d文件,实现Blog前台管理包括浏览,添加,修改,删除功能
module app.blog.controller.BlogController;
import app.blog.form.BlogForm;
import app.blog.model.Blog;
import app.blog.repository.BlogRepository;
import hunt.framework;
class BlogController : Controller
{
mixin MakeController;
//文章添加
@Action
string add()//跳转到添加页面添加
{
return view.render("blog_add");
}
@Action
string doadd(BlogForm form)//添加操作
{
auto blog = new Blog ;
blog.title = form.tit;
blog.description = form.dept;
blog.picture = form.pic;
blog.content = form.cont;
blog.created = time();//时间为当前时间
auto repo = new BlogRepository;
repo.save(blog);//保存
return "successed!";
}
//文章列表
@Action
string blogs()
{
auto repo = new BlogRepository;
auto blogs = repo.findAll();//查找所有的文章信息
view.assign("blogs",blogs);
return view.render("blog_list");//跳转到列表页面
}
//文章删除
@Action
string remove(int id)
{
auto repo = new BlogRepository;
repo.removeById(id);//通过id删除文章信息
return "deleted";
}
//文章修改
@Action
string update(int id)//修改页面
{
auto repo = new BlogRepository;
auto blog = repo.find(id);//通过id查到需要修改的文章信息
view.assign("blog",blog);
return view.render("blog_up");//跳转到修改页面
}
@Action
string doupdate(BlogForm form)//修改操作
{
auto repo = new BlogRepository;
auto blog = repo.find(form.id.to!int);
blog.title = form.tit;
blog.description = form.dept;
blog.picture = form.pic;
blog.content = form.cont;//进行修改操作
repo.save(blog);//保存
return "successed";
}
}11.在views下的default中创建footer.html,header.html用来储存模板页中的CSS样式，blog_add.html, blog_up.html，blog_list.html分别显示blog添加，修改，列表模板页；
//blog_list.html
{% include "header.html" %}
<!-- Page Content -->
<div class="container">
<div class="row">
<!-- Blog Entries Column -->
<div class="col-md-8">
<h2 class="my-4">Page Heading
<small>Secondary Text</small>
</h2>
{% for blog in blogs %}
<!-- Blog Post -->
<div class="card mb-4">
<img class="card-img-top" src="http://placehold.it/750x300" alt="Card image cap">
<div class="card-body">
<h3 class="card-title">{{blog.title}}</h3>
<p class="card-text">{{blog.description}}</p>
<a href="/blog/view?id={{blog.id}}" class="btn btn-primary">Read More →</a>
</div>
<div class="card-footer text-muted">
Posted on {{ date("m-d H:i:s",blog.created)}}
<a href="#">{{blog.user.username}}</a>
</div>
</div>
{% endfor %}
{% include "footer.html" %}//blog_add.html <html> <body> <form method="POST" action="/blog/add"> <p>Name:<input name="nm" type="text"></p> <p>Title:<input name="tit" type="text"></p> <p>Description: <input name="dept" type="text"></p> <p>Picture: <input name="pic" type="text"></p> <p>Content: <input name="cont" type="text"></p> <p><button type="submit" value="Add"></button></p> </form> </body> </html>
//blog_up.html
<form method="POST" action="/blog/doup">
<input name="id" type="hidden" value="{{blog.id}}">
<p>Name:<input name="nm" type="text" value="{{ blog.name }}"></p>
<p>Title:<input name="tit" type="text" value="{{ blog.title }}"></p>
<p>Description: <input name="dept" type="text" value="{{ blog.description }}"></p>
<p>Picture: <input name="pic" type="text" value="{{ blog.picture }}"></p>
<p>Content: <input name="cont" type="text" value="{{ blog.content }}"></p>
<p><button type="submit" value="Update"></button></p>
</form>“D语言怎么创建一个blog项目”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注亿速云网站，小编将为大家输出更多高质量的实用文章！
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