编码/解码 HttpPost UTF-8 Java
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Encode/Decode HttpPost UTF-8 Java
提问by Mbm
I am having troubles trying to send post data in utf8 format from the client to my server.
我在尝试将 utf8 格式的发布数据从客户端发送到我的服务器时遇到了麻烦。
I have read a lot about this topic but I can′t find the solution. I am sure that I am missing something basic.
我已经阅读了很多关于这个主题的内容，但我找不到解决方案。我确定我错过了一些基本的东西。
Here is my client code to make the post request
这是我发出发布请求的客户端代码
public static PostResponse post(String url, String data) {
PostResponse response = new PostResponse();
try {
// 1. create HttpClient
HttpClient httpclient = new DefaultHttpClient();
// 2. make POST request to the given URL
HttpPost httpPost = new HttpPost(url);
httpPost.setHeader("Content-Type", "text/plain; charset=UTF-8");
// 3. set string to StringEntity
StringEntity se = new StringEntity(data);
// 4. set httpPost Entity
httpPost.setEntity(se);
// 5. Execute POST request to the given URL
HttpResponse httpResponse = httpclient.execute(httpPost);
} catch (IOException e) {
}
return response;
}
This is the code in my server side to receive the text in utf8 (Polish characters are not appearing, I am getting "?" instead.)
这是在我的服务器端接收 utf8 文本的代码（波兰语字符没有出现，我得到的是“？”。）
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
try {
BufferedReader reader;
reader = req.getReader();
Gson gson = new Gson();
msg = gson.fromJson(reader, MsgChat.class); //String in the client was json
} catch (IOException e) {
}
}
I wrote only the relevant code.
我只写了相关的代码。
I would appreciate any help regarding this. Thanks.
我将不胜感激。谢谢。
回答by Viet Tran
I had the same problem. You should use this code:
我有同样的问题。您应该使用以下代码：
httpPost.setEntity(new StringEntity(json, "UTF-8"));
Hope this can help you.
希望这可以帮到你。
回答by kan
As I see you should use new StringEntity(data, ContentType.APPLICATION_JSON). By default it is iso-8859-1, setHeaderis not correct way to set encoding as I understand it.
正如我所见，您应该使用new StringEntity(data, ContentType.APPLICATION_JSON). 默认情况下iso-8859-1，setHeader根据我的理解，它不是设置编码的正确方法。
回答by Debasys
I'd suggest you try the addRequestHeader method of the HttpPost instead like
我建议您尝试使用 HttpPost 的 addRequestHeader 方法，而不是
httpPost.addRequestHeader("Content-Type", "text/plain;charset=UTF-8");
as that is the recommended way of adding content type header to your request.
因为这是向您的请求添加内容类型标头的推荐方式。
