form如何把文件和表单数据一起上传：
www.cnblogs.com/zzgblog/p/5417969.html
http://yunzhu.iteye.com/blog/2177923
前端使用FormData实现上传文件（上传头像实例）
http://blog.csdn.net/jekxi/article/details/52049939
1. new FormData();
2.把其他表单数据也append进去，不过格式需要是字符串！
注意：1.body：formData
不能是其他格式！如：body:{file:formData}是拿不到文件数据的！
2.‘Content-Type‘: ‘multipart/form-data‘,
const formData = new FormData();
const filefunction = values.add_function.file.originFileObj;
const fileadvancedfunction =
values.add_advanced_function.file.originFileObj;
const filedata = values.add_data.file.originFileObj;
formData.append(‘functionFile‘, filefunction);
formData.append(‘advancedFunctionFile‘, fileadvancedfunction);
formData.append(‘dataFile‘, filedata);
???????formData.append(‘Action‘, ‘AddServiceCatalog‘);
???????formData.append(
?????????‘Params‘,
?????????JSON.stringify({
???????????VersionID: values.add_TCEVersion,
???????????FirstLevel: values.add_FirstLevel,
???????????SoftwareSN: values.add_SoftwareSN,
???????????SecondLevel: values.add_SecondLevel,
???????????SoftwareDescription: values.add_SoftwareDescription,
???????????Oriented: values.add_Oriented,
???????????TceProductPrincipal: values.add_TceProductPrincipal,
???????????VerticalProductPrincipal: values.add_VerticalProductPrincipal,
???????????Module: this.props.Module
?????????})
???????);
fetch(‘http://134.175.205.70:8888/quoted/price‘, {
method: ‘POST‘,
headers: {
‘Content-Type‘: ‘multipart/form-data‘,
Authorization: localStorage.getItem(‘priceReport‘)
},
mode: ‘cors‘,
credentials: ‘include‘,
body: formData
})
表单中上传文件！
原文地址：https://www.cnblogs.com/ycxqdkf/p/10526260.html