Egg.js获取formData数据

系统管理员 2023-07-07 05:43 2阅读 0赞

使用React进行post的请求时，Eggjs获取formData的数据

### 方法1： ###

使用formidable进行转换

// add()
    const extraParams = await this.parse(this.ctx.req);
    const {
          title,
          type,
          country,
          year,
          score,
          time
        } = extraParams && extraParams.fields;
    
    // parse()
    async parse(req) {
        const form = new formidable.IncomingForm();
        return new Promise((resolve, reject) => {
          form.parse(req, (err, fields, files) => {
            resolve({ fields, files });
          });
        });
      }

### 方法2： ###

使用multipart （获取数据，上传的（多个）文件）

async add() {
        const { ctx } = this;
        const { req } = ctx;
        // const stream = await this.ctx.getFileStream();单个文件使用
        const parts = ctx.multipart();
        let part;
        while ((part = await parts()) != null) {
          if (part.length) {
            console.log("field: " + part[0]);
            console.log("value: " + part[1]);
          } else {
            if (!part.filename) {
              continue;
            }
            console.log("field: " + part.fieldname);
            console.log("filename: " + part.filename);
            console.log("encoding: " + part.encoding);
            console.log("mime: " + part.mime);
    
            const writePath = path.resolve(
              "./src/",
              `${new Date().getTime() + part.filename}`
            );
            console.log(writePath);
            if (!fs.existsSync(writePath)) {
              fs.writeFileSync(writePath, "");
            }
            const writeStream = fs.createWriteStream(writePath);
            await part.pipe(writeStream);
          }
        }
    
        ctx.body = { status: "ok" };
      }