【全栈】vue3.0 + golang 尝试前后端分离【博客系统1.0】开发

 1. 效果图

背景：想在自己的vps上搭建一个个人博客系统，之前自己用宝塔+WordPress 搭建过一个不过 

 还是想自己用golang做个真正属于自己的博客系统，于是就有了标题所述....

2. 贴下vue部分的代码，之前一直搞后端没有前端经验，发现vue对初学者还是很不错了

整体代码结构：

下面是组件部分：

导航：
<template>
  <div class="app-bar">
    <div class="left-links">
      <router-link v-for="link in activeLinks" :key="link.name" :to="link.to" class="app-bar-item">
        {{ link.name }}
      </router-link>
    </div>
    <div class="right-links ">
      <router-link class="app-bar-item" href="#" v-if="!loggedIn" @click.prevent :to="{ name: 'Login' }">LOGIN</router-link>
      <a class="app-bar-item" href="#" v-if="loggedIn" @click.prevent="logoutButtonClicked">LOGOUT</a>
    </div>
  </div>
</template>
 
<script>
import { mapActions, mapGetters } from "vuex";
export default {
  data() {
    return {
      links: [
        {
          visibleIfLoggedOut: true,
          name: "Posts",
          to: {name: "Posts"}
        },
        {
          visibleIfLoggedOut: false,
          name: "User",
          to: {
            name: "User",
            params: {
              userid: this.$store.getters["auth/currentUser"].username
            }
          }
        }
      ]
    };
  },
  methods: {
    ...mapActions({
      login: "auth/login", // map `this.login()` to `this.$store.dispatch('auth/login')`
      logout: "auth/logout"
    }),
    logoutButtonClicked() {
      this.logout().then(() => {
        this.$router.push({name: "Login"});
      });
    }
  },
  computed: {
    ...mapGetters({loggedIn: "auth/isLoggedIn"}),
    activeLinks() {
      return this.links.filter(
          link => link.visibleIfLoggedOut || this.loggedIn
      );
    }
  }
};
</script>
 
<style scoped>
.app-bar {
  height: 5vh;
  width: 100%;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: burlywood;
  overflow: hidden;
  display: block;
  justify-content: space-between;
}
.left-links {
  padding-left: 10%;
}
.left-links a {
  float: left;
}
 
a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}
.right-links {
  float: right;
}
</style>

添加文章或者评论：
 

<template>
  <form>
    <label v-if="showLabel" :for="'text' + this._uid">{{ textRequest }}</label>
    <input
        :id="'text' + this._uid"
        type="text"
        :placeholder="textRequest"
        v-model="textValue"
    />
    <button @click.prevent="submitted">submit</button>
  </form>
</template>
 
<script>
export default {
  data() {
    return {
      textValue: ""
    };
  },
  props: {
    textRequest: { type: String, default: "" },
    showLabel: { type: Boolean, default: false }
  },
  methods: {
    submitted() {
      this.$emit("text-added", this.textValue);
      this.textValue = "";
    }
  },
  emits: ["text-added"]
};
</script>
 
<style scoped>
label {
  padding-right: 1rem;
  display: block;
}
button {
  margin-top: 1rem;
  width: 10%;
  border-top-right-radius: 8px;
  border-bottom-right-radius: 8px;
  background-color: darksalmon;
  padding: 8px;
}
input {
  box-sizing: border-box;
  border-top-left-radius: 8px;
  border-bottom-left-radius: 8px;
  width: 80%;
  padding: 8px 20px;
}
input:focus {
  outline: 0;
  background-color: wheat;
}
</style>

 博文列表

<template>
  <div>
    <h1>{{ title }}</h1>
    <div class="post-list" v-if="showPosts">
      <single-post v-for="post in posts" :key="post.id" :post="post">
      </single-post>
    </div>
  </div>
</template>
 
<script>
import SinglePost from "@/components/SinglePost";
export default {
  components: { SinglePost },
  props: ["posts", "title"],
  computed: {
    showPosts() {
      return this.posts && this.posts.length > 0;
    }
  }
};
</script>
<style></style>

单个帖子

<template>
<base-card :expandable="post.comments && post.comments.length > 0">
  <template v-slot:header>
    <h3>
     <router-link :to="linkUser(post.username)">{{postTitle(post) }}</router-link>
    </h3>
    <button class="delete-button" @click.prevent="deletePost">Delete</button>
  </template>
  <div class="text-wrapper">Say：{{post.post }}</div>
  <template v-slot:footer>
    <base-card v-for="comment in post.comments" :key="comment.id" :expandable="false">
      <template v-slot:header>
        <h3>
          <router-link :to="linkUser(comment.username)">{{postTitle(comment)}}</router-link>
        </h3>
      </template>
      {{ comment.post }}
    </base-card>
  </template>
  <template v-if="loggedIn" v-slot:actions>
    <add-text-form textRequest="Add comment" :showLabel="false" @text-added="text => addComment(text, post)"></add-text-form>
  </template>
</base-card>
</template>
 
<script>
import {mapGetters} from "vuex";
import BaseCard from "@/components/UI/BaseCard";
import AddTextForm from "@/components/AddTextForm";
export default {
  components: { BaseCard, AddTextForm },
  props: ["post"],
  name: "SinglePost",
  computed: {
    ...mapGetters({
      loggedIn: "auth/isLoggedIn",
      currentUser: "auth/currentUser"
    })
  },
  methods: {
    postTitle(post) {
      return post.username + "@" + post.date;
    },
    linkUser(username) {
      return {
        name: "User",
        params: {
          userid: username
        }
      };
    },
    addComment(text, post) {
      this.$store.dispatch("posts/addComment", {
        postId: post.id,
        comment: {
          username: this.currentUser.userid,
          post: text
        }
      });
    },
    deletePost() {
      this.$store.dispatch("posts/deletePost", {post: this.post});
    }
  }
};
</script>
<style>
.text-wrapper {
  white-space: pre-wrap;
}
</style>

...

后端代码：

package endpoints
 
import (
	"encoding/json"
	"github.com/gorilla/mux"
	"log"
	"net/http"
)
 
//AddRouterEndpoints add the actual endpoints for api
func AddRouterEndpoints(r *mux.Router) *mux.Router {
	r.HandleFunc("/api/posts", getPosts).Methods("GET")
	r.HandleFunc("/api/posts", addPost).Methods("POST")
	r.HandleFunc("/api/posts/{POST_ID}", deletePost).Methods("DELETE")
	r.HandleFunc("/api/posts/{POST_ID}/comments", addComment).Methods("POST")
	return r
}
 
func sendJSONResponse(w http.ResponseWriter, data interface{}) {
	body, err := json.Marshal(data)
	if err != nil {
		log.Printf("Failed to encode a JSON response: %v", err)
		w.WriteHeader(http.StatusInternalServerError)
		return
	}
	w.Header().Set("Content-Type", "application/json; charset=UTF-8")
	w.WriteHeader(http.StatusOK)
	_, err = w.Write(body)
	if err != nil {
		log.Printf("Failed to write the response body: %v", err)
		return
	}
}

...

3. 小结

1. 整体感受，前后端分离，没有那么难；
2. vue很多技术点还是比较模糊，用起来吭哧吭哧的，自己没有理解透，例如solts等；
3. golang开发后端真的很快，相比运行部署完爆java；
4. 目前只在单机上开发完成，未来要部署到自己的服务器上；
5. 还没有接入DB存储，目前都是内存存储，不过用go介入存储mysql相信也很快；
6. 没有设计，自己就是产品，还有很多需要学习的；
7. 前期安装vue3.0可以参看官方手册；

4. 源码

完整的代码请留言...