vue使用formData进行文件上传

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1.vue页面

<ux-form ref="formRef" layout="vertical">
    <ux-form-item label="证书名称">
        <ux-field-decorator name="authorizationDomain">
            <ux-input v-model="form.authorizationDomain" />
        </ux-field-decorator>
    </ux-form-item>
    <ux-form-item label="客户">
        <ux-field-decorator name="customerId">
            <ux-select v-model="form.customerId" name="customerId"
                placeholder="请选择客户">
                <ux-option 
                    v-for="customerInfo in customerArray" 
                    :key="customerInfo.id"
                    :label="customerInfo.name"
                    :value="customerInfo.id">
                </ux-option>
            </ux-select>
        </ux-field-decorator>
    </ux-form-item>
    <ux-form-item label="上传公钥">
        <ux-field-decorator name="publicKey">
            <ux-upload name="publicKey" v-model="publicFileList" :multiple="false" control
             @change="onPublicChange" :before-upload="beforeUpload">
                <ux-button icon="upload">浏览</ux-button>
                注：公钥：crt|pem|cer 
            </ux-upload>
        </ux-field-decorator>
    </ux-form-item>
    <ux-form-item label="上传私钥">
        <ux-field-decorator name="privateKey">
            <ux-upload name="privateKey" v-model="privateFileList" control
            @change="onPrivateChange" :before-upload="beforeUpload ">
                <ux-button icon="upload">浏览</ux-button>
                注：私钥：key 
            </ux-upload>
        </ux-field-decorator>
    </ux-form-item>
</ux-form>

2.上传文件时的校验

onPublicChange({fileList}) {
    try {
        var file = fileList[fileList.length - 1];
        if (file && !/.(crt|pem|cer)$/.test(file.name)){
            UxMessage.warning('请上传正确格式的公钥');
            return;
        }
        this.publicFileList = fileList.slice(fileList.length - 1, fileList.length);
    } catch(e) {
        console.log(e);
    }
},    
onPrivateChange({fileList}) {
    try {
        var file = fileList[fileList.length - 1];
        if (file && !/.(key)$/.test(file.name)){
            UxMessage.warning('请上传正确格式的私钥');
            return;
        }
        this.privateFileList = fileList.slice(fileList.length - 1, fileList.length);
    } catch(e) {
        console.log(e);
    }
}, 

3.使用formData上传后台：

 //创建 formData 对象
let formData = new FormData();
//多个文件上传
formData.append("publicFile", publicKey);  // 文件对象
formData.append("privateFile", privateKey);  // 文件对象  
formData.append("authorizationDomain", values.authorizationDomain);
formData.append("customerId", values.customerId);            
            
 _this.$http.post('/certificate/updateCheck.do',formData)
 .then(function (response) {            
    }    

4.java代码：

    @ResponseBody
    @RequestMapping(value = "/updateCheck", method = {RequestMethod.POST})
    public RequestResult updateCheck(Certificate certificate) {
            }

public class Certificate {        
        private Long customerId;

        private String authorizationDomain;
        
        private MultipartFile publicFile;

        private MultipartFile privateFile;            
    }    

 5.效果图：