java http 请求参数都需要URLEncoder.encode吗

Question

如标题~

Answer 1

Not all parameters need to be encoded. Using URLEncoder是一种解决方式，但是并不是必须的选择。
但是如果你的参数中带有URI保留字，那你必须要使用URLEncoder。比如你的参数中带有/&?=...这类保留字，如果你不编码那解析URL to solve Chinese garbled characters is definitely not the result you expect.
RFC 3986 2.2. Reserved Characters

Answer 2

Prevent Chinese garbled characters, you can use it or not

Answer 3

The browser will automatically do URLEncoder.encode once, no need to manually URLEncoder.encode

Answer 4

In the Android code, I use android.net.Uri.encode(). If I am not sure whether there are special characters in the parameters, I just add them. It is not complicated.