Java 接收并上传前端传来的 form 表单提交的图片文件到另一个接口

[Yohann97]

postman 可以跑通 http://cms.pactera.com:9097/upload/public/32/Other/1013100210-575550.png ，但是代码不会写肿么办，postman 生成的代码是这样的

OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW"); RequestBody body = RequestBody.create(mediaType, "------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name="Domain"\r\n\r\nxsh\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name="IsPublic"\r\n\r\ntrue\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name="FileType"\r\n\r\nImage\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name="FileCategory"\r\n\r\nOther\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name="files"; filename="C:\Users\z1557\Pictures\aa.png"\r\nContent-Type: image/png\r\n\r\n\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW--"); Request request = new Request.Builder() .url("http://cms.pactera.com:9097/api/services/app/Public/UploadFiles") .post(body) .addHeader("content-type", "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW") .addHeader("Content-Type", "application/x-www-form-urlencoded") .addHeader("Authorization", "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.FFbs7JH0Fad1yY5On-ivZCDb8UO-yZ0SE-HMqYFgRjk") .addHeader("Cache-Control", "no-cache") .addHeader("Postman-Token", "c3d0193f-0e32-4c4e-9154-bec83f7d6a62") .build();

Response response = client.newCall(request).execute();

postman 的参数在这 Domain:xsh IsPublic:true FileType:Image FileCategory:Other

BearerToken:eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.FFbs7JH0Fad1yY5On-ivZCDb8UO-yZ0SE-HMqYFgRjk

[Yohann97]

大佬们能帮帮我不，好几天了，写不出来，难受

[secaas]

这是个盗版头像= =

[Yohann97]

@secaas 盗版，快换了吧，颜色都不正

[ghos]

https://stackoverflow.com/questions/23512547/how-to-use-okhttp-to-upload-a-file 可以参考一下

[aLazarus]

十一节前写了个使用 formdata 传图片和参数给接口的方法，不知道是不是你这意思？

[dbolo123]

postman 好像可以生成 okhttp 的代码吧?参考下?

[lifespy]

这个很简单啊，就行楼上说的，你可以用 okhttp，也可以用自带的

[mmdsun]

搜索 okhttp 上传文件就 OK 了。

[Yohann97]

@aLazar 嗯嗯，能发我参考下么

[Yohann97]

@dbolo123 我在上面贴的就是 postman 生成的，但是没有文件上传的具体写法

[Yohann97]

@ghos 感谢，我试试

[Yohann97]

还是不行😭😭😭有大佬能在线指导下我么，好崩溃呀

[Alexliu]

不能直接前端直传么，还到后端倒手一次

[Yohann97]

@Alexliu 别人写好的代码我接手的，客户要求换文件上传地址，我写到前端得全改一遍，所以想写一个名字参数列表和返回参数一样的方法算了