Vue.jsからCSVファイルを読み込み、SpringBootで受け取りたい

解決したいこと

Vue.jsからCSVを読み込み、SpringBoot側で受け取りたいです。

Vue
1<template>
2  <b-card
3    header="外部ファイルの読み込み"
4  >
5    <v-list two-line subheader dense>
6      <v-subheader>外部ファイルを読み込む</v-subheader>
7      <v-list-item>
8        <v-list-item-content>
9          <v-list-item-title>
10            <v-file-input
11              label="File input"
12              v-model="file"
13              name=file
14              placeholder="読み込みたいファイル"
15            ></v-file-input>
16          </v-list-item-title>
17        </v-list-item-content>
18        <v-list-item-action-text class="pl-4">
19          <b-button
20            variant="outline-success"
21            :disabled="file === ''"
22            size="sm"
23            @click="uploadFile()"
24            >ファイルを読み込む
25          </b-button>
26        </v-list-item-action-text>
27      </v-list-item>
28      <v-divider></v-divider>
29    </v-list>
30  </b-card>
31</template>
32<script>
33export default {
34  data() {
35    return {
36      file: "",
37    };
38  },
39  methods: {
40    uploadFile() {
41    this.$axios.post('/user/impoertUser', this.file, {
42      headers: { 'Content-Type': 'multipart/form-data' }
43    }).then((res) => {
44      console.log(res.data)
45    })
46    }
47  }
48};
49</script>
50

Java
1package com.example.controller;
2
3import java.io.BufferedReader;
4import java.io.IOException;
5import java.io.InputStream;
6import java.io.InputStreamReader;
7import java.io.Reader;
8
9import org.springframework.beans.factory.annotation.Autowired;
10import org.springframework.web.bind.annotation.RequestMapping;
11import org.springframework.web.bind.annotation.RequestMethod;
12import org.springframework.web.bind.annotation.RequestParam;
13import org.springframework.web.bind.annotation.RestController;
14import org.springframework.web.multipart.MultipartFile;
15
16import com.example.form.RegisterUserForm;
17import com.example.service.RegisterUserService;
18
19@RestController
20@RequestMapping("/user")
21public class ImportCSVController {
22	
23	@Autowired
24	private RegisterUserService registerUserService;
25	
26	@RequestMapping(value = "/importUser", headers = "Content-Type= multipart/form-data", method = RequestMethod.POST)
27	public void importUser(@RequestParam("file") MultipartFile uploadFile) {
28		
29		System.err.println(uploadFile);
30		
31		String line = null;
32	    
33	    try {
34	        InputStream stream = uploadFile.getInputStream();           
35	        Reader reader = new InputStreamReader(stream);
36	        BufferedReader buf= new BufferedReader(reader);
37	        
38	        line = buf.readLine();
39	        while((line = buf.readLine()) != null) {
40	        	
41	    	String[] data = line.split(",", 0);
42	    	
43	    	RegisterUserForm form = new RegisterUserForm();
44	    	
45	    	form.setUserName(data[0]);
46	    	form.setMailAddress(data[1]);
47	    	form.setPassword(data[2]);
48	    	registerUserService.registerUser(form);
49		    	
50	        }
51	        
52	    } catch (IOException e) {
53	    	
54	        line = "Can't read contents.";
55	        e.printStackTrace();
56	        
57	    }
58	  
59	}
60}
61