表单中上传文件！

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 })