objective-c - 做post请求时，服务端可以检测到接收到两个非空的字段，但是返回了错误

Question

做post请求时，服务端可以检测到接收到两个非空的字段，但是返回了错误 分类： JAVA HTTP Status 500 - Request processing failed; nested exception is java.lang.NullPointerException type Exception report message Request processing failed; nested exception is java.lang.NullPointerException description The server encountered an internal error that prevented it from fulfilling this request. exception o

Answer 1

Null pointer, it means there is something wrong with your server-side writing. Test the server carefully and you should see an error when accepting empty fields.