简约 写文章

1、pom.xml依赖，增加fastjson依赖
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.56</version>
</dependency>

2、数据库表和entity已完成
3、mapper
ArticleMapper，新增文章方法，增加@Options注解，返回自增主键
@Insert("INSERT INTO t_article (u_id,title,content,create_time) VALUES (#{uId},#{title},#{content},#{createTime}) ")
@Options(useGeneratedKeys = true, keyProperty = "id", keyColumn = "id")
void insertArticle(Article article);

ImgMapper，新增图片接口
@Insert("INSERT INTO t_img(a_id,img_url) VALUES (#{aId},#{imgUrl})")
void insertImg(Img img);

4、service
ArticleService接口增加方法
void insertArticle(Article article);

ImgServie接口增加方法
void insertImg(Img img);

5、controller
ArticleController
@PostMapping("/add")
public ResponseResult postArticle(@RequestParam("uId") int uId,
@RequestParam("title") String title,
@RequestParam("content") String content) {
Article article = new Article();
article.setUId(uId);
article.setTitle(title);
article.setContent(content);
article.setCreateTime(new Date());
articleService.insertArticle(article);
//新增文章后，将获取到的自增主键返回给客户端，用于图片地址的写入
return ResponseResult.success(article.getId());
}
新建ImgController，注入ImgService，编写如下方法

@PostMapping("/add")
public ResponseResult addImg(@RequestParam("aId") int aId,
@RequestParam("imgs") String imgs) {
//调用FastJson的序列化工具，将前端传过来的图片数组字符串反序列化为Java的List对象
List<String> imgList = JSONArray.parseArray(imgs, String.class);
//遍历图片List，创建Img对象写入数据库
for (String imgUrl:imgList) {
Img img = new Img();
img.setAId(aId);
img.setImgUrl(imgUrl);
imgService.insertImg(img);
}
return ResponseResult.success();
}

6、swagger测试自行完成
7、前端
注意：在首页点击“写文章”按钮，要判定登录状态，如果没登录，跳转到登录页面；如果已经登录，跳转到写文章页面
write.vue文件的HTML部分
<template>
<view class="container">

<input type="text" v-model="title" placeholder="请输入标题" />

<button class="add-btn" @tap="chooseImg">+图片</button>

<textarea placeholder="输入内容" v-model="content" class="content" />
<text>预览</text>

<view class="grace-text">、
<rich-text :nodes="content" bindtap="tap"></rich-text>
</view>
<button class="green-btn" @tap="postArticle">发布文章</button>
</view>
</template>

js部分
data区

  return {
        title: '',
        content: '',
        userId: uni.getStorageSync('login_key').userId,
        imgs: []
    };

methods区
选择图片上传方法
chooseImg: function() {
var _this = this;
uni.chooseImage({
count: 1,
sizeType: ['original', 'compressed'],
sourceType: ['album'],
success: function(res) {
console.log(JSON.stringify(res.tempFilePaths));
uni.uploadFile({
url: _this.apiServer + '/upload',
filePath: res.tempFilePaths[0],
name: 'file',
success: uploadFileRes => {
//图片上传成功，回显图片地址
console.log(uploadFileRes.data);
//将图片地址加入imgs数组
_this.imgs.push(uploadFileRes.data);
//将图片地址拼接HTML标签，加入文章内容
_this.content += '<img src="' + uploadFileRes.data + '" width = "100%"/>';
}
});
}
});
}

选择图片上传方法
chooseImg: function() {
var _this = this;
uni.chooseImage({
count: 1,
sizeType: ['original', 'compressed'],
sourceType: ['album'],
success: function(res) {
console.log(JSON.stringify(res.tempFilePaths));
uni.uploadFile({
url: _this.apiServer + '/upload',
filePath: res.tempFilePaths[0],
name: 'file',
success: uploadFileRes => {
//图片上传成功，回显图片地址
console.log(uploadFileRes.data);
//将图片地址加入imgs数组
_this.imgs.push(uploadFileRes.data);
//将图片地址拼接HTML标签，加入文章内容
_this.content += '<img src="' + uploadFileRes.data + '" width = "100%"/>';
}
});
}
});
}

发布文章方法
postArticle: function() {
var _this = this;
uni.request({
url: this.apiServer + '/article/add',
method: 'POST',
header: { 'content-type': 'application/x-www-form-urlencoded' },
data: {
uId: this.userId,
title: this.title,
content: '<div>' + this.content + '</div>'
},
success: res => {
if (res.data.code === 0) {
//获得发布文章成功返回的文章id
var aId = res.data.data;
console.log(aId);
uni.showToast({
title: '发布成功'
});
//将文章id和文章对应的图片地址数组传到后台，存入数据库
uni.request({
url: this.apiServer + '/img/add',
method: 'POST',
header: { 'content-type': 'application/x-www-form-urlencoded' },
data: {
aId: aId,
imgs: JSON.stringify(_this.imgs) //序列化imgs数组
},
success: res => {
if (res.data.code === 0) {
console.log('文章图片地址已写入数据库');
}
}
});
uni.switchTab({
url: '../index/index'
});
}
}
});
}

省略css部分