OkHttp4 RequestBody.create()弃用解决方案

OKhttp3已升级到Okhttp4 ，编写语言由java过渡到kotlin

okhttp3经常用到的post提交数据的，RequestBody.create() 已过时，并且换成了kotlin的新特性写法！

okhttp3 post请求的代码（4.0版本已过时） ：

val request:Request=Request.Builder()
	.post(RequestBody.create(MediaType.parse("application/json;charset=utf8"),
        "body参数")).build()

okhttp4 post最新请求的代码：

Kotlin版本

import okhttp3.MediaType.Companion.toMediaType
import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.RequestBody.Companion.asRequestBody

//String转RequestBody String、ByteArray、ByteString都可以用toRequestBody()
val stringBody ="body参数".toRequestBody("application/json;charset=utf-8".toMediaType())
val request = Request
              .Builder()
              .post(stringBody)
              .build()
                
//File转RequestBody
val file=File("")
val fileBody=file.asRequestBody("text/x-markdown; charset=utf-8".toMediaType())
val request = MultipartBody.Builder()
                    .addFormDataPart("file", file.name,fileBody)
                    .build()

Java版本

import okhttp3.MediaType.Companion.*;
import okhttp3.RequestBody.Companion.*;

//String转RequestBody String、ByteArray、ByteString都可以用toRequestBody()
 MediaType mediaType=MediaType.Companion.parse("application/json;charset=utf-8");
 RequestBody stringBody=RequestBody.Companion.create("body参数",mediaType);
 Request request=new Request
                .Builder()
                .post(stringBody)
                .build();
                
//File转RequestBody
MediaType mediaType=MediaType.Companion.parse("text/x-markdown; charset=utf-8");
File file=new File("");
RequestBody fileBody=RequestBody.Companion.create(file,mediaType);
Request request=new MultipartBody.Builder()
                .addFormDataPart("file", file.getName(),fileBody)
                .build();

官方迁移指南

参考链接