java - okhttp 不需要的表单数据转义

Question

我正在尝试使用 okhttp 构建一个 post 请求以将 JSON 发送到现有服务。但是当我尝试发送表单时，okhttp 会转义 JSON 中的所有特殊字符 - 但服务器被编码为仅接受未转义的字符。

String msg = "{SomeJsonMsg:...}";
FormEncodingBuilder b = new FormEncodingBuilder();
b.addEncoded( msg, "" );
RequestBody form_body = b.build();

使用wireshark，它会显示我尝试重新编码的应用程序的以下内容(即良好的调用):

D=E@d+2JPe NGnPPOST /pp/httpService.do HTTP/1.1
User-Agent: Dalvik/1.6.0 (Linux; U; Android 4.4.2; GT-I9500 Build/KOT49H)
Host: test.com
Connection: Keep-Alive
Accept-Encoding: gzip
Content-Type: application/x-www-form-urlencoded
Content-Length: 213

{"callPara": {"userPassword":"password!","userName":"myname","gameName":"SGZJ-ANDROID-SG","udid":"d5d96bcc3a8e436ab991d35eb284d6bd","clientType":"EN","releaseChannel":"EN","locale":"EN"},"serviceName":"login"}

但是上面的java代码转储了这个(一个错误的调用):

D=Ev@+2J,P  ^FPPOST /pp/httpService.do HTTP/1.1
User-Agent: Dalvik/1.6.0 (Linux; U; Android 4.4.2; GT-I9500 Build/KOT49H
Content-Type: application/x-www-form-urlencoded
Content-Length: 324
Host: test.com
Connection: Keep-Alive
Accept-Encoding: gzip

%7B%22callPara%22%3A%7B%22userPassword%22%3A%22password%21%22%2C%22userName%22%3A%22myname%22%2C%22gameName%22%3A%22SGZJ-ANDROID-SG%22%2C%22udid%22%3A%226d49ee067762822c6a8f721d256ce44c%22%2C%22clientType%22%3A%22EN%22%2C%22releaseChannel%22%3A%22EN%22%2C%22locale%22%3A%22EN%22%7D%2C%22serviceName%22%3A%22login%22%7D=

有没有办法使用 okhttp 来做到这一点？我尝试过 b.add( msg, "") 和 b.addEncoded( msg, "") - 无法真正区分两者之间的区别，java 文档也没有说明这两个调用的任何内容。

Answer 1

您正在使用 HTML 表单编码，但需要常规 HTTP 请求正文。

替换这个:

FormEncodingBuilder b = new FormEncodingBuilder();
b.addEncoded( msg, "" );
RequestBody form_body = b.build();

这样:

MediaType JSON = MediaType.parse("application/json; charset=utf-8");
RequestBody body = RequestBody.create(JSON, msg);