java 图片url以form

java 图片url以form

之所以想记录下来，主要是之前对这个不太熟，然后在网上找了大半天也没找到合适的，然后自己慢慢试了出来，比较囧。。。但分享给大家，亲测可用！

主要分为两步：
1. 将图片url转为二进制字符串；
2. 将二进制字符串以及其他字段一并上传。

直接上代码：

public class HttpClient {public static final OkHttpClient client =new OkHttpClient.Builder().connectTimeout(10, TimeUnit.SECONDS).readTimeout(10, TimeUnit.SECONDS).build();public static String getResponse(String url, String imgUrl) throws IOException {RequestBody fileBody = ate(MediaType.parse("image/jpeg"), getFile(imgUrl));RequestBody requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM).addFormDataPart("param1", param1).addFormDataPart("param2", param2).addFormDataPart("image", "image", fileBody).build();Request request = new Request.Builder().url(url).post(requestBody).build();Response response = wCall(request).execute();if (response.isSuccessful()) {return response.body().string();} else {throw new RuntimeException(response.body().string());}}private static byte[] getFile(String imgUrl) throws IOException {Request request = new Request.Builder().url(imgUrl).build();Response response = wCall(request).execute();if (response.isSuccessful()) {return response.body().bytes();} else {throw new RuntimeException(response);}}
}

其中OkHttpClient包请自行导入。